209-3-1-66F-3-9-70

## **209/219/229/249/279 SERIES** HYDRAULIC MAGNETIC CIRCUIT PROTECTORS 

## Introduction 

The 209, E-Frame circuit breaker combines power switching with accurate, reliable circuit protection in a compact single or mutipole unit - including components in the 209, 219, 229, 239, 249, 259, 269, and 279 series. 

The 209 is actually a family of circuit breakers available in one through six pole assemblies with a variety of configurations and terminal styles to meet your application needs. First in this family is the 209, a general purpose E-Frame circuit breaker which complies with UL Standard 489. Other members of the family include the 219, for manual controller applications, which complies to UL Standard 508, the 229, for supplementary protectors applications, which complies to UL Standard 1077, and the 299, a Special Construction version. 

Utilizing the hydraulic-magnetic principle, the 209 family adapts itself to local applications and environments. Temperature conditions, which affect fuses and other thermal devices, are not a concern. The magnetic /ampere turn principle minimizes nuisance tripping due to temperature variations. 

Inrush currents, due to ferroresonant transformers, lamps and capacitive filters, are now becoming more significant. Recognizing the need for this type of protection, Airpax offers the unique inertial delay which is standard for all 50/60Hz time delay units, but may be deleted where inrush is not a problem. No extra cost or special order is required. 

The 209 family of circuit breakers withstands high pulses without tripping or affecting normal delay curves. This performance, however, does not derate or sacrifice protection. 

## **209/219/229 MAGNETIC CIRCUIT PROTECTORS** 

## Terminal Style 

209 E-Frame circuit breakers may be specified with either screw terminals, stud or solderless connectors. 

A choice of front or back connected terminal styles is available. The back connected terminal style is available with stud terminals only. Front terminal style is available with either screw terminals or solderless connectors. 

Refer to Sixth Decision Table for front connected terminal information. 

Barriers for back connected terminal styles are supplied on multi-pole units only. Line and load connections may be made to either terminal and terminals will be identified as shown on the following page. 

## **DIMENSION A** 

|**Number of Poles**|**Dimensions “A”**|
|---|---|
|**1**|1.026 ± .010 [26.06 ± 3.30]|
|**2**|2.072 [52.63] Max|
|**3**|3.108 [78.94] Max|
|**4**|4.144 [105.26] Max|
|**5**|5.180 [131.57] Max|
|**6**|6.216 [157.89] Max|



Page 1 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**==> picture [404 x 426] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.610<br>.700 [66.29]<br>A [17.78]MAX. .220 [30.99]1.220 .125 .200<br>.562 [5.59] [3.18] [5.08<br>[14.27]<br>.530 .485<br>[13.46] [12.32]<br>+.015<br>2.250 -.005<br>[57.15] + -0.130.38 5.800<br>[147.32]<br>2.156<br>2.750 [54.76] 4.844<br>[69.85] 35… [123.04]<br>1.375 1.125 35… 2.375<br>[34.92] [28.58] 4.750 [60.32]<br>[120.65]<br>2X 6-32 MTG. INSERT<br>.160 MIN. SCREW DEPTH<br>[4.06]<br>.310 MAX. SCREW DEPTH<br>[7.87]<br>3.0 MM ISO THD. OPTIONAL .220<br>[5.59]<br>3.550<br>A [90.17]<br>.700 2.610<br>[17.78] .220 [66.29]<br>MAX. [5.59]<br>2.156<br>[54.76]<br>+.015 5.125<br>[69.85]2.750 [57.15]2.250 + -.005-0.130.38 [130.18]<br>1.375 1.125<br>[34.92] [28.58] 3.550<br>[90.17]<br>4.750<br>[120.65]<br>2X 6-32 MTG. INSERT<br>.160 MIN. SCREW DEPTH<br>[4.06]<br>.310 MAX. SCREW DEPTH<br>[7.87]<br>3.0 MM ISO THD. OPTIONAL 0-50 AMPS<br>10-32 STUDS<br>.625 –.062 [15.88 –1.57] LONG<br>51-100 AMPS<br>1/4-20 STUDS<br>.750 –.062 [19.05 –1.57] LONG<br>**----- End of picture text -----**<br>


## **249 POWER SELECTOR BREAKER SYSTEM** 

The 249 Power Selector Breaker System combines magnetic-hydraulic branch circuit overload protection and a power system selector switch in one device. 

The 249 is designed to allow selection of any one of two, three or four independent power systems. This is accomplished with fool-proof sliding-gate handle covers. The number of sliding covers is one less than the number of power systems. With this arrangement, it is impossible to switch “ON” more than one power system at a time. 

Since the 249 Power Selector Breaker System is listed as a Branch Circuit Breaker per UL 489 and power switching is accomplished by UL listed breakers, it is usually not necessary to include additional branch service protection. 

## **Trip Time Delay** 

Three inverse time delays are available to permit close coordination with various loads. Delays 51 and 61 are short delays for electronic loads. Delays 52 and 62 are medium delays for mixed loads. Delays 53 and 63 are long delays for motor loads. 

## **Current and Voltage Ratings** 

Single pole and multi-pole breaker ratings are available up to 100 amperes, 240Vac or 125Vdc. The special configuration for Marine use has a 120V/240Vac rating for current rating up to 100 amperes. 

## **Master Drawing** 

Standard circuit breaker terminal and configurations are shown. For other types, consult factory. 

Standard options available include terminals for front or back connections, choice of trip time delay, current ratings to 100 amperes and single or multi-pole sections. 

Page   2 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## 249 Master Drawing 

**==> picture [532 x 201] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.610<br>Width [20.32].800 [66.29] 1.220<br>(SEE TABLE) .562 MAX. [30.99] .125 .200 (TYP.)<br>6-32 MTG. Insert [14.27] [3.18] [5.08]<br>.160 [4.06] MIN. screw depth<br>.310 [7.87] MAX. screw depth<br>(TYP) .530 .485<br>[13.46] [12.32]<br>+.015<br>2.250 +0.38-.005<br>[57.15] -0.13 5.800<br>[147.32]<br>[69.85]2.750 [54.76]2.156 [123.04]4.844<br>1.375 1.125 2.375<br>[34.92] [28.58] [60.32]<br>4.750<br>[120.65]<br>.220 1.026 4X MTG. SLOT<br>[5.59] [26.06] Clearance for8-32 Screw<br>(TYP.)<br>         (TYP.)<br>**----- End of picture text -----**<br>


**==> picture [126 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
3.550<br>2.610 [90.17]<br>[66.29] .375<br>[9.53]<br>2.156<br>[54.76]<br>5.125<br>[130.18]<br>3.550<br>[90.17]<br>4.750<br>[120.65]<br>(REF)<br>.750<br>[19.05]<br>**----- End of picture text -----**<br>


**==> picture [115 x 55] intentionally omitted <==**

**----- Start of picture text -----**<br>
.390<br>[9.91<br>**----- End of picture text -----**<br>


## **DIMENSIONS** 

**==> picture [245 x 20] intentionally omitted <==**

**----- Start of picture text -----**<br>
Number of Poles Width<br>**----- End of picture text -----**<br>


||**Width**|
|---|---|
|||
|**9**<br>**8**<br>**6**<br>**4**<br>**2**|9.324 [236.83] Max|
||8.288 [210.52] Max|
||6.216 [157.89] Max|
||4.144 [105.26] Max|
||2.072 [52.63] Max|



Page   3 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## **209/219/229 MULTI-POLE CIRCUIT PROTECTORS** 

## **Common-Trip Construction** 

All multi-pole protectors contain an internal trip bar which opens all poles in the event of an overload in any pole. Handles are ganged externally for simultaneous actuation. 

Individual poles may differ in ratings, delays and configurations, providing an almost limitless number of combinations. 

Multi-pole protectors (up to 6 poles) easily satisfy special modern day circuitry. Series, shunt, relay and auxiliary switch construction add to the versatility of design engineering. Airpax’s sales engineering force is ready to assist in proper unit selection, both for equipment protection and economical design. 

## **Three Phase, Four Pole Includes Control Protector** 

Remote shutdown of equipment is sometimes necessary or desirable in today’s sophisticated equipment. The 219 four pole assembly fills this need for three phase operation. Three of the four poles are designed for the circuit’s proper operating current and over-current protection. The fourth pole may be designed for instantaneous tripping by logic circuitry, interlocks or from a manual remote site or control. The control power required would be quite low, with voltages from 5 to 125Vdc, or 5 to 240Vac available. The fourth pole construction is optional. It may be either series, shunt or relay, depending on the application required. When specifying, both the minimum trip voltage and Hz are required. Factory consultation is readily available. 

**==> picture [489 x 197] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.072 2.610<br>(52.63)MAX. [17.78]MAX..700 .220[66.29] [30.99]1.220 .125 .200<br>.562 [5.59] [3.18] [5.08]<br>[14.27]<br>.530<br>[13.46] [12.32].485 See available<br>mounting brackets<br>+.015-.005 below<br>2.250 +0.38<br>[57.15] -0.13 5.800<br>2.156 [147.32]<br>2.750 [54.76] 4.844<br>[69.85] [123.04]<br>1.375 1.125 2.375<br>[34.93] [28.58] [60.32]<br>4.750<br>[120.65]<br>4X 6-32 MTG. INSERT<br>.160 MIN. SCREW DEPTH<br>[4.06]<br>.310 MAX. SCREW DEPTH<br>[7.87]<br>3.0 MM ISO THD. OPTIONAL .220 1.026 2X MTG. SLOTCLEARANCE FOR<br>[5.59] [26.06] 8-32 SCREW<br>**----- End of picture text -----**<br>


**==> picture [150 x 55] intentionally omitted <==**

**----- Start of picture text -----**<br>
.390<br>[9.91]<br>**----- End of picture text -----**<br>


**==> picture [100 x 32] intentionally omitted <==**

**==> picture [94 x 32] intentionally omitted <==**

**==> picture [190 x 79] intentionally omitted <==**

**----- Start of picture text -----**<br>
.145<br>[3.68]<br>SCALE: 3/1 SCALE: 3/1<br>**----- End of picture text -----**<br>


Page   4 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**==> picture [533 x 477] intentionally omitted <==**

**----- Start of picture text -----**<br>
3.550<br>DIM."A" [90.17]<br>(SEE TABLE) .700 2.610<br>[25.90]1.020 [17.78]MAX. [5.59].220 [66.29]<br>2.156<br>[54.76]<br>5.125<br>2.750 2.250 [+.015] -.005 [130.18]<br>[69.85]<br>[57.15] [+0.38] -0.13 35°<br>1.375 1.125 35° 3.550<br>[34.92] [28.58] [90.17]<br>( 4.750 )<br>[120.65]<br>4X 6-32 MTG. INSERT<br>.160 MIN. SCREW DEPTH<br>[4.06]<br>.310 MAX. SCREW DEPTH<br>[7.87]<br>3.0 MM ISO THD. OPTIONAL<br>0-50 AMPS<br>10-32 STUDS OR M5 STUDS<br>.625 ±.062 [15.88 ±1.57] LONG<br>51-100 AMPS<br>1/4-20 STUDS OR M6 STUDS<br>.750 ±.062 [19.05 ±1.57] LONG<br>1.042 2.078 3.115 SHEET 8<br>[26.47] [52.78] [79.12]<br> 1.026  .523  1.026  1.026  .531 RECOMMENDED PANEL CUT-OUT<br>26.06 13.28 26.06 26.06 13.49 FOR REAR MOUNTED UNIT WITH<br>AUXILIARY SWITCH.<br>.500<br>[12.70]<br>2.750 2.750<br>[69.85] [69.85]<br>2.270<br>2.750 2.270 2.270 [57.66]<br>[69.85] [57.66] [57.66] 2.125<br>[53.98]<br>.240<br>[3.96].156 .240 [3.96].156 [6.10] [3.96].156 [6.10].240 1.050<br>(2 HOLES) [6.10] (4 HOLES) (6 HOLES) [26.67]<br>MID-TRIP<br>LOWER HOLE MOUNTING<br>**----- End of picture text -----**<br>


## **DIMENSIONS** 

**==> picture [245 x 21] intentionally omitted <==**

**----- Start of picture text -----**<br>
Number of Poles Width<br>**----- End of picture text -----**<br>


|**1**|1.026|± .010 [26.06 ± .254]|
|---|---|---|
|**2**|2.072|[52.63] Max|
|**3**|3.108|[78.94] Max|
|**4**|4.144|[105.26] Max|
|**5**|5.180|[131.57] Max|
|**6**|6.216|[157.89] Max|



Page   5 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## **229D (MARINE) & 279 (COMMUNICATION)** 

## **UL-1500 Ignition Protection** 

The 229D family is certified to UL-1500 which covers Ignition Protected circuit protectors. This specification requires devices to be used in accordance with the requirements of U.S. Coast Guard and Fire Protection Standard for Pleasure and Commercial Motor Craft, ANSI/ MFPA No. 302. 

The ratings available are 100 amperes or less at 65Vdc or 240Vac. Maximum IC, 1000 amperes. Consult factory for application details. The 299D series is available with interlocking to prevent on board and shore power being used simultaneously. 

Combination of ON-OFF switching the protection function offers a simplified solution for your electrical systems. 

## **UL 489A Communications Equipment Protection** 

The 279 Series complies with the requirements of UL 489A, Circuit Breakers for use in Communication Equipment, meeting the need for protection at higher DC voltages. The available ratings are 100 amperes or less at 160Vdc. Maximum short circuit interrupting current is 5000 amperes. The 279 series available only in a series trip configuration. 

Please consult Sensata for specific application details. 

## **209/219/229 CONFIGURATIONS** 

## **Series Trip** 

The most popular configuration for magnetic protectors is the series trip, where the sensing coil and contacts are in series with the load being protected. The handle position conveniently indicates circuit status. In addition to providing conventional overcurrent protection, it’s simultaneously used as an ON-OFF switch. 

**==> picture [125 x 137] intentionally omitted <==**

**----- Start of picture text -----**<br>
SEE NOTE A<br>LINE<br>LOAD<br>3.550<br>[90.17]<br>.750<br>[19.05]<br>**----- End of picture text -----**<br>


**==> picture [188 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
C<br>NO<br>NC<br>3.550<br>[90.17] 3.128 MAX.<br>[79.45]<br>REF. FROM<br>BACK OF  .295<br>MOUNTING  [7.49]<br>PANEL.<br>.110<br>[2.79] -IREC4 -IREG4<br>1.563<br>[39.70] Quick Conn ect Terminals .312<br>[7.92]<br>[19.05].750 .187[4.75] -IREC5 -IREG5<br>**----- End of picture text -----**<br>


Page   6 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**219/229 CONFIGURATIONS** 

## **Relay Trip** 

This permits the overload sensing coil to be placed in a circuit which is electrically isolated from the trip contacts. The coil may be actuated by sensors monitoring pressure, flow, temperature, speed, etc. Other typical applications include crowbar, interlock and emergency/rapid shutdown circuitry. Trip may be accomplished by voltage or current, which must be removed after trip. 

## **Dual Coil** 

Providing for both a voltage trip and a current trip function in a magnetic circuit protector is common practice. These two coil protectors provide remote or automatic opening of one or more circuits with a low level signal. 

The voltage coil will trip the protector instantaneously while the current coil provides normal inverse time delays. The voltage coil is not rated for continuous duty and therefore, the voltage must be removed when the breaker trips. 

**==> picture [74 x 177] intentionally omitted <==**

**==> picture [45 x 39] intentionally omitted <==**

Since both coils are housed within the same pole, the space savings are substantial. 

This option is not available with 64, 65 or 66 delays. 

## **Shunt Trip** 

The shunt trip is designed for controlling two separate loads with one assembly. The control is established by providing overload protection for the critical load. When the current through this load becomes excessive and reaches the trip point, the protector will open and remove power from both loads simultaneously. The total current rating of both loads must not exceed the maximum contact rating. 

## **Voltage Trip** 

Sometimes called “dump circuits” or “panic trip circuits,” these units make it possible to open main power contacts with lower power inputs from one or more sources. This configuration is becoming increasingly more important for sensitive circuitry and denser packaging in automation systems. 

Available in series, shunt or relay configurations. 

## **Note:** 

**==> picture [34 x 171] intentionally omitted <==**

**==> picture [85 x 100] intentionally omitted <==**

Page   7 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## **OPERATING CHARACTERISTICS** 

## **Inrush Pulse Tolerance** 

The table shown above provides a comparison of inrush pulse tolerance with and without the inertial delay feature for each of the 50/60Hz delays. Pulse tolerance is defined as a single pulse of half sine wave peak current amplitude of 8 milliseconds duration that will not trip the circuit breaker. 

The table at right provides a reference guide for selecting the inertial delay feature. Consult factory for further assistance. 

## **INRUSH PULSE TOLERANCE** 

**==> picture [245 x 21] intentionally omitted <==**

**----- Start of picture text -----**<br>
Delay Pulse Tolerance<br>**----- End of picture text -----**<br>


|**Delay**|**Pulse Tolerance**|
|---|---|
|||
|**61, 62, 63**|8 times rated current|
|**64**|minimum 20 times rated current|
|**65**|minimum 25 times rated current|
|**66**|minimum 30 times rated current|



Note: These limits do not apply to dual coil and tapped coil units 

## **PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C** 

**==> picture [151 x 198] intentionally omitted <==**

**==> picture [36 x 183] intentionally omitted <==**

**==> picture [34 x 183] intentionally omitted <==**

Page   8 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**209/219/229 DELAY CURVES** 

## **50/60Hz Delay Curves (typ)** 

A choice of delays is offered for 50/60Hz applications. 

Delay 61 is a short delay for general purpose applications. Delay 62 is long enough to start certain types of motors and most transformer and capacitor loads. 

Delay 63 is a long delay for special motor applications. 

Delays 64, 65 and 66 are the latest 50/60Hz delays with short, medium and long trip times respectively. The patented breaker design provides both increased tolerance to high inrush induced nuisance tripping and longer trip times at 600 percent. These delays are ideally suited for applications where thermal devices are presently used, such as motor protection or where short duration, high inrush currents are experienced. As shown in a typical motor start-up curve, the delay 66 will provide locked rotor and overload protection. Nuisance tripping is avoided, since acceptable short periods of overload will not trip the breaker. 

All trip curves and trip currents are specified with the breaker mounted in the normal vertical position at ambient temperature of +25°C. For test and measurement purposes, the breakers should not carry current prior to application of overload for calibration test. For other than vertical mount position, consult factory. 

**==> picture [162 x 75] intentionally omitted <==**

**==> picture [162 x 99] intentionally omitted <==**

**==> picture [161 x 108] intentionally omitted <==**

Page   9 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**209/219/229/279 DELAY CURVES** 

**==> picture [162 x 55] intentionally omitted <==**

**==> picture [162 x 111] intentionally omitted <==**

Page   10 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**209/219/229 DELAY CURVES** 

**==> picture [162 x 96] intentionally omitted <==**

**==> picture [162 x 114] intentionally omitted <==**

**==> picture [149 x 106] intentionally omitted <==**

Page   11 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**209/219/229 SPECIFICATIONS** 

## **Trip Free** 

Will trip open on overload, even when forcibly held on. This prevents the operator from damaging the circuit by holding the handle in the ON position. 

## **Trip Indication** 

The operating handle moves positively to the OFF position on overload. 

## **Environmental Specifications** 

Moisture and fungus resistance is provided by the use of moisture resistant finishes. Special springs and treatment for all ferrous parts eliminate inherent moisture-related problems. The use of fungi inert cases and handles avoids fungus-related problems. 

## **Current Ratings** 

209/219/229 may be supplied with these ratings: DC, 50/60Hz, 400Hz, 0.1 to 100 amperes. 279 types may be supplied with DC ratings only, 0.1 to 100 amperes. 

## **Voltage Ratings** 

On 209/219/229, voltages up to and including 240Vac, 50/60Hz or 400Hz, or 125Vdc are available. Multi-pole units can be supplied for 277Vac/480Vac, 50/60Hz. 279 types are available with a voltage of 160Vdc. All units will be marked with the standard maximum voltage. UL Listed breakers will be labeled with the UL listed voltage. 

## **Auxiliary Switch Ratings** 

When supplied shall be S.P.D.T. configuration with a maximum rating of 10 amperes 250Vac. 

## **Mounting Considerations** 

A three-inch spacing must be provided between the circuit breaker and vent and any conductive surface. If closer than three inches is necessary, then an insulator must be installed on the conductive surface. 

## **Solderless Connectors** 

Connectors are rated AL9 CU. and accept either copper or aluminum conductors. Units are suitable for use with both 60° and 75° wire. Optional pressure plate for fine stranded wire is available. Contact factory for details. 

## **NOMINAL DCR / IMPEDANCE** 

**==> picture [263 x 236] intentionally omitted <==**

## **APPROXIMATE CIRCUIT BREAKER WEIGHT** 

**==> picture [262 x 98] intentionally omitted <==**

## **RECOMMENDED TORQUE SPECIFICATIONS** 

**==> picture [263 x 123] intentionally omitted <==**

Page   12 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**209/219/229/279 DECISION TABLES** 

## **How to Order** 

The ordering code for 209, E-Frame Circuit Breakers may be determined by following the steps in the decision tables shown here. 

The coding given permits a self-assigning part number for standard configurations. Factory part numbers are assigned to units with mixed ratings, combinations of styles or construction not listed in the Third Decision Table, etc. With these, it is suggested that order entry be by description and/ or drawings, and a part number will be established. 

Additionally, it is standard policy to establish a factory assigned part number whenever a descriptive drawing exists to insure cross reference, traceability and manufacturing control. 

When specifying a breaker for AC motor start or high inrush applications, the peak amplitude and surge duration should be specified for factory assistance in rating selection. 209 is a UL listed circuit breakers under file no. E53739 per UL 489. 

279 is a UL listed under file no. E192808 per UL 489A. 

219 is a UL recognized “Manual Motor Controller” under file no. E41607 per UL 508. 

229 is a UL recognized supplementary protector under file no. E66410 per UL 1077. 

For example, the following is the code for a single pole breaker with series trip, 50/60Hz, medium inertial delay, 120/240Vac maximum voltage ratings, solderless connector with mounting foot added to the line side of the breaker to facilitate back panel mounting and a current rating of 10.0 amperes. 

To determine the ordering number of your particular 209 unit, simply follow the steps shown. You may use this number to place an order or as a reference for further questions you may have. 

## **Notes:** 

- A. A 6-32 inserts for front mounting are provided on all units. M3 ISO metric mounting inserts are available and are specified by adding -A at the end of the ordering code above. 

- B. The auxiliary switch is located on the right-hand pole (viewed from terminal end) unless specified otherwise. Auxiliary switches are available on all front or back panel mounts (series construction only). If more than one auxiliary switch is specified use “2R” through “6R” as required 

   - D. An anti-flashover barrier is supplied between poles on all multi-pole versions with 10-32 stud and 1/4-20 stud terminals per UL requirement. 

   - E. The standard current values for 100% of rated current are those listed in the Seventh Decision Table. Non-listed values can be readily supplied, in general without delayed delivery. Please contact an Airpax office or sales representative. 

- C. Line terminals are 10-32 screws for bus connection to 100 amperes. Load terminals are 10-32 screws to 50 amperes and solderless connectors from 50 to 100 amperes. 

Page   13 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## **209/219/229/279 DECISION TABLES (CONT.)** 

**==> picture [541 x 79] intentionally omitted <==**

**----- Start of picture text -----**<br>
209 1 1 65 3 2 10 H V<br>Type<br>See following charts.<br>Poles<br>See following charts.<br>Configurations<br>**----- End of picture text -----**<br>


**Hz and Delay** See following charts. **Voltage and Current** See following charts. **Terminal Selection** See following charts. **Current Ratings** See following charts. **Optional** See following charts. 

## **Approval** 

## **V =** VDE Approved 

In the following tables, the shaded areas denote VDE Approval options. This approval requires the addition of a V at the end of the part number. The V will be added to any part number formed entirely from shaded decisions. If non-shaded areas are selected, the unit will not be VDE Approved, but other approvals still apply. 

## **Type** 

**==> picture [245 x 179] intentionally omitted <==**

**----- Start of picture text -----**<br>
Magnetic Branch Circuit Breaker,<br>209*<br>UL 489 Listed<br>Manual Motor Controller,<br>219<br>UL 508 Recognized<br>Supplementary Protector,<br>229<br>UL 1077 Recognized<br>Magnetic Circuit Breakers for use in<br>279** Communication Equipment,<br>UL 489A Listed<br>Marine Ignition Protection,<br>229D<br>UL 1500 Recognized<br>Special Construction, not UL<br>299<br>Listed or Recognized<br>*  UL 489 Listed units are rated to 125A maximum<br>**  UL 489A Listed units are rated to 160Vdc maximum<br>**----- End of picture text -----**<br>


## **Configurations** 

**==> picture [245 x 164] intentionally omitted <==**

**----- Start of picture text -----**<br>
-0 Switch Only<br>-1 Series<br>Auxiliary Switch* (std.),<br>-1REC4<br>110 quick connect<br>-1REG4 Auxiliary switch*, 110 quick connect [†]<br>-1REC5 Auxiliary switch*, 187 quick connect<br>-3 Shunt (up to 50 amp only)**<br>-4 Relay (up to 50 amp only)**<br>† Gold Contacts<br>* Switch is located in the right hand pole<br>(viewed from terminal end), unless otherwise specified<br>** Not available in 209 type.<br>**----- End of picture text -----**<br>


**==> picture [245 x 91] intentionally omitted <==**

**----- Start of picture text -----**<br>
-1 Single Pole Unit<br>-2 Two Pole Unit<br>-3 Three Pole Unit<br>-4 Four Pole Unit<br>-5 Five Pole Unit<br>-6 Six Pole Unit<br>**----- End of picture text -----**<br>


## **Hz and Delay** 

|**Standard**||**Option**|
|---|---|---|
|**41**|400Hz short delay|41F|
|**42**|400Hz medium delay|42F|
|**43**|400Hz long delay|43F|
|**50**|DC instant stop||
|**51**|DC short delay|51F|
|**52**|DC medium delay|52F|
|**53**|DC long delay|53F|
|**60**|50/60Hz instant trip||
|**61**|50/60Hz short delay||
|**62**|50/60Hz medium delay||
|**63**|50/60Hz long delay||
|**64**|50/60Hz short delay (high pulse)||
|**65**|50/60Hz long delay (high pulse)||
|**66**|50/60Hz motor delay (high pulse)||
|**SW**|Switch Only (No Delay)||



An “F” after any delay denotes high pulse tolerance construction 

Page   14 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## **Voltage and Current** 

||Maximum<br>Voltage|**Maximum**<br>**Current**<br>**(Amperes)**|
|---|---|---|
|**-1**|65 Vdc††|100|
|**-2**|125 Vdc|100|
|**-3**|120/240 Vac|100|
|**-4**|240 Vac|100|
|**-5***|277 / 480 Vac†|100|
|**-6**|277 Vac|100|
|**-7***|600 Vac|77|
|**-8***|480 Vac†††|100|
|**-9****|160 Vdc|100|



- Multi-pole only 

- ****** For 279 Ratings Only 

- 240/415 Vac ìWyeî only for VDE 

- **††** For 229D Ratings Only 

- **†††** Two Poles Breaking Minimum 

## **Terminal Selection** 

**==> picture [328 x 319] intentionally omitted <==**

**----- Start of picture text -----**<br>
Terminal Terminal Connect Panel Mount<br>-1 Solderless Connector Front Front (Note A)<br>-2 Solderless Connector Front Back *<br>-2C Solderless Connector Front Back **<br>-3 10-32 screw (100 amps max.) Bus Connect Back (Note C) *<br>-3C 10-32 screw (100 amps max.) Bus Connect Back (Note C) **<br>-4 10-32 screw (50 amps max.) Front Front<br>-5 10-32 screw (50 amps max.) Front Back *<br>-5C 10-32 screw (50 amps max.) Front Back **<br>-6 1/4 - 20 screw (100 amps max.) Front Front<br>-7 1/4 - 20 screw (100 amps max.) Front Back *<br>-7C 1/4 - 20 screw (100 amps max.) Front Back **<br>-8 10 - 32 stud (50 amps max.) Back Front (Note D)<br>-9 1/4 - 20 stud (100 amps max.) Back Front (Note D)<br>-3M M5 x 0.8 screw (100 amps max.) Bus Connect Back (Note C)*<br>-4M M5 x 0.8 screw (50 amps max.) Front Front<br>-5M M5 x 0.8 screw (50 amps max.) Front Back *<br>-6M M6 x 1.0 screw (100 amps max.) Front Front<br>-7M M6 x 1.0 screw (100 amps max.) Front Back *<br>-8M M5 x 0.8 stud (50 amps max.) Back Front (Note D)<br>-9M M6 x 1.0 stud (100 amps max.) Front Front (Note D)<br>**----- End of picture text -----**<br>


- Back panel mount style supplied with slotted mounting bracket. Solderless connector will accept #14 through 0 copper or #12 through 0 aluminum wire. Back panel mount style supplied with short mounting bracket. 

- ****** 

## **Current Ratings** 

**==> picture [236 x 154] intentionally omitted <==**

**----- Start of picture text -----**<br>
Amps Amps<br>.1 10<br>.25 15<br>.5 20<br>1 25<br>2 30<br>2.5 50*<br>3 60<br>5 70<br>7.5 100*<br>**----- End of picture text -----**<br>


## **Optional** 

|**A**|Metric mounting inserts M3 (Note A)|
|---|---|
|**H**|International Handle Markings|
|Multi-pole unites with mixed construction poles numbered left to right<br>when viewed from terminal end.||



Non-Standard Currents are Available (Note E) 

- Switch only ratings. 

Page   15 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**249 POWER SELECTOR BREAKER SYSTEM DECISION TABLES** 

## **How to Order** 

To evolve a convenient ordering system for most applications, the following code has been developed. If a system is required which is not covered below, please consult factory or describe in detail. The number shown as an example describes a 120 volt, three section system, such as may be used on a boat with a port and starboard shore power receptacle and an AC generator. The breaker rating for the shore power is 30 amperes and for the generator 20 amperes in this example. 1/4 -20 screw type terminals and a medium time delay are specified. 

|See fol<br>**Total N**<br>**Total N**<br>**Type**|lowing charts.<br>**umber of Poles**<br>**umber of Poles**<br>**249**<br>**6**<br>**C**|**## ## ##**|**## ## ##**|**62**<br>**1**<br>**2**|**62**<br>**1**<br>**2**|**62**<br>**1**<br>**2**|**62**<br>**1**<br>**2**||
|---|---|---|---|---|---|---|---|---|
||||||||||
|See fol|lowing charts.||||||||
|**Curren**|**t Rating (Each Section)**||||||||
|See fol|lowing charts.||||||||
|**Termin**|**als**||||||||
||||||||||
|See fol|lowing charts.||||||||
|**Trip Ti**|**me Delay**||||||||
||||||||||
|See fol|lowing charts.||||||||
|**Application**|**i**||||||||
||||||||||
|See following charts.|||||||||



## **Total Number of Poles (First Decision)** 

|**-2**|2|
|---|---|
|**-4**|4|
|**-6**|6|
|**-8**|8|
|**-9**|9|



## **Total Number of Poles (Second Decision)** 

|**Code**|**Number of**<br>**Selections**|**Breaker Poles**<br>**Per Section**|
|---|---|---|
|**-A**|**2**|1|
|**-B**|**2**|2|
|**-C**|**3**|2|
|**-D**|**4**|2|
|**-E**|**2**|3|
|**-F**|**3**|3|



## **Current Rating (Each Section)** 

Indicate the actual rating from the list below for each section (left to right when viewed from the front.) 

## **-10, -15, -20, -25, -30, -50, -60, -70, -100** 

## **Terminals** 

|**Terminals**||
|---|---|
|**-1***|Box type solderless wire connect|
|**-2**|1/4 - 20 Screw|
|**-3**|1/4 - 20 Stud (for Back Connection)|
|*****<br>1 Box type connector not supplied on 239 marine applications||



## **Trip Time Delay** 

|**-51 or 51F**|Short DC|
|---|---|
|**-52 or 52F**|Medium DC|
|**-53 or 53F**|Long DC|
|**-61**|Short AC|
|**-62**|Medium AC|
|**-63**|Long AC|
|**-64**|Short AC (High Pulse)|
|**-65**|Medium AC (High Pulse)|
|**-66**|Long AC (High Pulse)|



## **Application** 

|**Application**||
|---|---|
|**-1**|Marine (239 Breaker)|
|**-2**|Industrial (209 Breaker)|



Page   16 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

## **AGENCY APPROVALS & CERTIFICATIONS** 

## **209 SERIES AGENCY APPROVALS** 

## **219 MANUAL MOTOR CONTROLLERS AGENCY APPROVALS** 

## **229 SUPPLEMENTARY PROTECTORS* AGENCY APPROVALS** 

## **General Notes** 

All supplementary protectors are of the overcurrent (OC) type 

The family of protectors has been evaluated for end use application for use group (UG) A and D 

The terminals (FW) – Terminals are coded as follows: 

- 0 – Suitable for factory wiring only 

- 1 – Line terminals evaluated for field wiring 

- 2 – Load terminals evaluated for field wiring 

- 3 – Line and Load terminals evaluated for field wiring 

The maximum voltage ratings for which the protectors have  been tested are shown in the chart 

The current is the amperage range that the protectors have been tested The tripping current (TC) – Tripping Current is coded as a percentage of the ampere rating: 

- 0 – Tripping current is less than 125% of ampere rating 

- 1 – Tripping current is in the range of 125% to 135% of ampere rating 

- 2 – Tripping current is more than 135% of ampere rating 

- 3 – Tripping current is 135% and meets MCCB trip time requirements 

The overload rating (OL) - Designates whether the protector or family of protectors has been tested for general use or motor starting applications. 

- 0 – tested at 1.5 times amp rating for general use 

- 1 – tested at 6 times AC rating or 10 times DC rating for motor starting 

The short circuit current rating (SC) – The short circuit rating in amperes following a letter and number designating the test conditions and any calibration following the short circuit test is defined below: 

- C – Indicates short circuit test was conducted with series overcurrent protection 

- U – Indicates short circuit test was conducted without series overcurrent protection 

- 1 – Indicates a recalibration was not conducted as part of the short circuit testing 

- 2 – Indicates a recalibration was performed as part of the short circuit testing 

- 3 – Indicates recalibration was performed along with the dielectric and voltage withstand for “Suitable for Further Use” rating 

Page   17 

Copyright © 2025 Sensata Technologies, Inc. 

sensata.com 

**WARNINGS** 

RISK OF MATERIAL DAMAGE AND HOT ENCLOSURE 

- The product’s side panels may be hot, allow the product to cool before touching 

- Follow proper mounting instructions including torque values 

- Do not allow liquids or foreign objects to enter this product 

**Failure to follow these instructions can result in serious injury, or equipment damage.** 

HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH **Failure to follow these instructions can result in death or serious injury.** 

Datasheets provided by Sensata Technologies, Inc., its subsidiaries and/or affiliates (“Sensata”) are solely intended to assist third parties (“Buyers”) who are developing systems that incorporate Sensata products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, valuation, and judgment in designing Buyer’s systems and products. Sensata datasheets have been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that specifically described in the published documentation for a particular datasheet. Sensata may make corrections, enhancements, improvements, and other changes to its datasheets or components without notice. Buyers are authorized to use Sensata datasheets with the Sensata component(s) identified in each particular datasheet. HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATASHEETS ARE PROVIDED “AS IS”. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATASHEETS OR USE OF THE DATASHEETS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATASHEETS OR USE THEREOF. 

All products are sold subject to Sensata’s terms and conditions of sale supplied at www.sensata.com SENSATA ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS’ PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY, AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, AND ANY USE OF SENSATA COMPONENTS IN ITS APPLICATIONS, NOTWITHSTANDING ANY APPLICATIONS-RELATED INFORMATION OR SUPPORT THAT MAY BE PROVIDED BY SENSATA. Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USA. Copyright © 2025 Sensata Technologies, Inc. 

## **CONTACT US** 

## **Americas** 

508-236-2551 electrical-protection-sales@ sensata.com 

**Europe, Middle East & Africa** +31743578156 info-sse@list.sensata.com 

**Asia Pacific** sales.isasia@list.sensata.com **China** +86 (21) 2306 1500 **Japan** +81 (45) 277 7117 **Korea** +82 (31) 601 2004 **India** +91 (80) 67920890 **Rest of Asia** +886 (2) 27602006 ext 2808 

sensata.com 

Rev:03/12/25