PBN3E421-R9

## **PBN Series** 

## Pressure Switches and Sensors 

## **DESCRIPTION** 

The Honeywell PBN series is a range of versatile, low-cost, ultra-low pressure switches and sensors. 

PBN products are compact, lightweight, feature high reliablity, and are designed to yield a repeatable response over millions of cycles. They can be mounted in virtually any orientation 

and their rugged construction allows use in the most rigorous environments. 

Product specifications such as operating characteristics, termination type and contact materials can be customised for certain applications. 

## **FEATURES** 

- Sensitive to ultra-low pressures 

- Gage, vacuum and differential measurement 

- Miniature size 

- Lightweight 

- Fast response 

- Rugged housings 

- Shock and vibration resistant 

- Low and high current versions 

## **POTENTIAL APPLICATIONS** 

- Arc fault detection 

- Filter restriction 

- Safety interlock 

- HVAC 

- Vacuum control 

- Liquid level sensing 

- Pick and place machinery 

- Pump control 

- Counters 

- Edge detection 

- Traffic counters 

- Motor control 

## **PBN3** 

## High-Current, Low Pressure Sensors 

## **MECHANICAL SPECIFICATIONS** 

|**Characteristic**|**Measure**|
|---|---|
|Switch type|SPDT normally open or normally closed|
|Switching medium|Air or compatible fluids|
|Expected mechanical life|Up to five million cycles depending on<br>load|
|Proof pressure|15 psi for units where set point is<br>75 in-H2O or less; 80 psi for units where<br>set point is greater than 75 in-H2O|
|Weight|Less than 20 grams|
|Operating temperature|4 °C to 66 °C with Polyurethane<br>(standard) diaphragm; -40 °C to 96 °C<br>with Teflon (optional)diaphragm|



## **PHYSICAL SPECIFICATIONS** 

## **DESCRIPTION** 

The PBN3 series is a range of miniature, high-current, lowpressure devices which measure gauge pressure and can switch up to 16(4) A. Smooth 4 mm perpendicular ports and 5 mm barbed radial ports are available. Nominal actuation pressure varies from 1 in-H2O to 6,5 in-H2O. Adjustable models have actuation pressures which can be set from 10 in-H2O to 1109 in-H2O. 

PBN3 devices comprise a snap-action SPDT pressure switch which contains an actuator assembly and miniature micro switch. The devices are designed to respond to positive air pressure but may also be activated by non-corrosive liquids at low pressures. 

## **FEATURES** 

- High current switching capacity 

- Sensitive to low gauge pressures 

- Miniature size 

- Lightweight 

- Fast response 

|**Characteristic**|**Measure**|
|---|---|
|Mounting|2,6 mm (No 4), thread size screws<br>through mounting lugs or 2 mm (No 2)<br>thread size screws through eyelets|
|Case material|Polycarbonate and Polyetherimide<br>standard (other materials available<br>upon request) (see chart)|
|Contact material|Silver (gold available on special order<br>for “dry contact” applications)|
|Electrical connections|6,3 mm x 0,8 mm quick connect termi-<br>nals supplied on all listings except<br>PBN3XXXX-B and -D which have<br>4,8 mm x 0,5 mm connections|
|Pressure ports|Smooth perpendicular and barbed radial|
|Pressure settings|Factory set or field adjustable<br>(see chart)<br>Switching hysteresis = 25 % to 50 % of<br>set point|



## **ELECTRICAL SPECIFICATIONS** 

|**Characteristic**|**Measure**|
|---|---|
|Switch type|Single pole double throw|
|Switch rating|Dependent on actuation pressure<br>(see chart)|
|Contact voltage|250 Vac|



- Rugged housings 

- Adjustable and non-adjustable models 

## **POTENTIAL APPLICATIONS** 

- Counting 

- Edge detection 

- Liquid level sensing 

- Traffic counters 

- Motor control 

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## **PBN3** 

## **ORDERING INFORMATION** 

|**Model Number**|||**Actuation Pressure**|**Actuation Pressure**|||||
|---|---|---|---|---|---|---|---|---|
|4 mm smooth<br>perpendicular<br>ports|5 mm barbed radial ports<br>Same side<br>as terminals<br>Opposite side<br>from terminals||in-H2O|mbar|Tolerance<br>from<br>nominal|AMP<br>rating|Terminal<br>width<br>mm|Proof pressure<br>psi|
||Same side<br>as terminals||||||||
|PBN3C421-B*|PBN3C441-B*|PBN3C451-B*|1.0|2,49|+100% -50|%<br>3|4,75|15|
|PBN3C421-D*|PBN3C441-D*|PBN3C451-D*|2.0|4,98|±20 %|3|4,75|15|
|PBN3C421-H|PBN3D441-H|PBN3D451-H|6.5|16,19|±30 %|5|6,35|15|
|**Adjustable models**|||||||||
|PBN3D421-R1|PBN3D441-R1|PBN3D451-R1|10.0 to 28.0|24,9 to 69,8|N/A|5|6,35|15|
|PBN3E421-R2|PBN3E441-R2|PBN3E451-R2|35.0 to 75.0|87,0 to 187,0|N/A|16|6,35|15|
|**Listings with polyetherimide as case material**|||||||||
|PBN3E421-R8|PBN3E441-R8|PBN3E451-R8|83.0 to 416.0|207,0 to 1034,0|N/A|16|6,35|80|
|PBN3E421-R9|PBN3E441-R9|PBN3E451-R9|416.0 to 1109.0|1034,0 to 2758,0|N/A|16|6,35|80|



Note: Contact voltage 250 Vac max 

*Supplied with terminals 4, 8mm x 0,5 mm instead of standard 6,3 mm x 0,8 mm 

## **DIMENSIONS** 

4mm smooth perpendicular ports 

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7,92 Note: See chart for rev level<br>ø 2,36 Terminal width (0,31)<br>(0,09) (see table) ø 3,96<br>Mounting holes (4) 0,8 (0,16)<br>(0,03) Pressure port<br>4,75mm terminal<br>12,70 46,99<br>(0,50) (1,87)<br>18,24<br>25,40 (0,72) 6,35mm terminal49,78<br>(1,00)<br>(1,96)<br>10,16<br>(0,40)<br>12,70<br>25,40 25,20<br>(0,50)<br>(1,00) (0,99)<br>Adjustable Models Only<br>Adjustment screw 1,98mm (,078)<br>Hex socket – clockwise to increase<br>actuation point, counterclockwise to<br>decrease actuation point<br>**----- End of picture text -----**<br>


6   Honeywell • Sensing and Control 

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## High-Current, Low Pressure Sensors 

5 mm barbed radial ports, opposite side from terminals 

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Note: See chart for rev level<br>4,30<br>ø 3,17 Terminal width (0,17) ø 4,74<br>(0,12) (see table) (0,18)<br>Mounting holes (2) 0,8 ø 6,35 Pressure port<br>(0,03) (0,25)<br>7,14 4,75mm terminal<br>(0,28) 12,68 46,99<br>(0,50) (1,87)<br>6,35mm terminal<br>49,78<br>18,24<br>25,40 (0,72) (1,96)<br>(1,00)<br>6,35<br>(0,25)<br>25,40 14,80 Typ 2<br>30,58 (1,00) 29,56 (0,58)<br>(1,20) (1,17)<br>Adjustable Models Only<br>Adjustment screw 1,98mm (,078)<br>Hex socket – clockwise to increase<br>actuation point, counterclockwise to<br>decrease actuation point<br>**----- End of picture text -----**<br>


5 mm barbed radial ports, same side from terminals 

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Note: See chart for rev level Terminal width<br>ø 3,17 25,40 (see table)<br>(0,12) (1,00)<br>0,8<br>Mounting holes (2)<br>(0,03)<br>ø 7,14 4,75mm terminal<br>46,99<br>(0,28)<br>(1,87)<br>6,35mm terminal<br>49,78<br>18,24<br>(1,96)<br>(0,72)<br>25,40 6,35<br>(1,00) (0,25)<br>Typ 2<br>12,70<br>Mark Honeywell 4,30 (0,50)<br>Part # & (0,17) ø 6,35<br>30,58 Date code 14,80 ø 4,74 (0,25)<br>(1,20) 29,56 (0,58) (0,18)<br>Adjustable Models Only (1,17) Pressure port<br>Adjustment screw 1,98mm (,078)<br>Hex socket – clockwise to increase<br>actuation point, counterclockwise to<br>decrease actuation point<br>**----- End of picture text -----**<br>


Honeywell • Sensing and Control     7 

## **PBN Series** 

## Pressure Switches and Sensors 

**Warranty.** Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. **The foregoing is buyer’s sole remedy and is in lieu of all warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages.** 

While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. 

Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. 

For more information about Sensing and Control products, visit www.honeywell.com/sensing or call +1-815-235-6847 Email inquiries to info.sc@honeywell.com 

## **WARNING** 

## **PERSONAL INJURY** 

- DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. 

**Failure to comply with these instructions could result in death or serious injury.** 

## **WARNING** 

## **MISUSE OF DOCUMENTATION** 

- The information presented in this catalogue is for reference only. DO NOT USE this document as product installation information. 

- Complete installation, operation and maintenance information is provided in the instructions supplied with each product. 

**Failure to comply with these instructions could result in death or serious injury.** 

## Sensing and Control 

## Honeywell 

1985 Douglas Drive North Golden Valley, MN 55422 USA 

+1-815-235-6847 

EN0M-0358 August 2008 Copyright © 2008 Honeywell International Inc. All rights reserved. 

**www.honeywell.com/sensing**