77342-07.0HG-01

: 

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Honeywell 

Sensing and Control 

SWITCHES . f. > 2001 QS9000 

## SWITCH APPLICATIONS 

The odds are that Honeywell Sensing and Control can meet your switch demands. Designers of heavy-duty equipment have trusted Honeywell pressure and vacuum switches for many years in applications that are constantly subjected to harsh environments…from chemical splashes, salt water, high pressure spikes…we’ve got you covered. Our standard line is quite extensive, but if it is not exactly what your requirements call for we can modify an existing part or create an original just for you. Honeywell has produced millions of custom-built switches for automotive, pool and spa, powershift transmissions, anti-skid braking systems, excavator hydraulic systems, water pump systems, and dental air compressors, to name just a few. Our highly skilled model shop, certified lab and engineering staff can work with you through the design phase, prototype stage, all the way through to the testing phase. And if time is a crucial factor, rapid prototyping technology can now allow us to provide you with a sample in days. 

**WARNING!** _Suitability of application is responsibility of user. Extreme heat and vibration should be avoided at mounting points such as on top of an engine over a hot manifold. (MAX operation temp 250° F). Always install by using a wrench on the hex base. Torquing at any other part of the switch voids the warranty or may cause malfunction. A Polyimide film diaphragm is utilized in the pressure switch and is not recommended for use with water. However, a Teflon diaphragm is available for water applications. Compatibility with the brass or steel external pressure switch material is the responsibility of the user. For maximum operating pressures see appropriate switch family specifications. Contact Honeywell Engineering whenever use of switch or fluid compatibility is questioned._ 

## CONTENTS 

|• Ultra Duty Pressure Switches 10-400 psi  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.3<br>• Extended Duty Pressure Switches 0.5-150 psi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.4|• Ultra Duty Pressure Switches 10-400 psi  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.3<br>• Extended Duty Pressure Switches 0.5-150 psi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.4|
|---|---|
|• Extended Duty Vacuum Switches1.1-22” Hg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.6|• Extended Duty Vacuum Switches1.1-22” Hg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.6|
|• Extended Duty Piston Switches 200-1000 psi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.7|• Extended Duty Piston Switches 200-1000 psi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p.7|
|• Factory Set Variable Differential Pressure & Vacuum Switches 2-70 psi & 2-22” Hg . . . p.8|• Factory Set Variable Differential Pressure & Vacuum Switches 2-70 psi & 2-22” Hg . . . p.8|
|• High Pressure Environmentally Sealed Extreme-Duty Switches 35-3000 psi . . . . . . . . . p.9|• High Pressure Environmentally Sealed Extreme-Duty Switches 35-3000 psi . . . . . . . . . p.9|



## **WARNING** 

**==> picture [144 x 17] intentionally omitted <==**

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! PERSONAL INJURY<br>**----- End of picture text -----**<br>


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.** 

**2** 

Set Points from 10-400 psi 5000 Series Ultra Duty Pressure Switch 

Honeywell Sensing and Control has designed a high pressure/low set point pressure switch for applications that see sudden pressure spikes and high system pressures that can result in early switch failures. This series has been strengthened to prevent cracking of the base with plated steel and screw machined components in a 3-piece design. Modifications to the effective area of the pressure cavity and size of the diaphragm button and diaphragm o-ring are what makes the switch capable of handling sudden pressure transients and high system pressures that are common in applications such as braking, transmission and hydraulic systems. 

**==> picture [28 x 6] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.3” REF.<br>**----- End of picture text -----**<br>


The switch’s physical appearance is similar to our 5000 Series switches with a height of only 2.3” (approx) and a diameter of 1.47”. In comparison to our 5000 Series Switch the burst rating has significantly increased from 1250 psi to over 4000 psi on the new design. 

## **Specifications** 

_Type:_ Direct action blade contact 

**==> picture [32 x 6] intentionally omitted <==**

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1.47” REF.<br>**----- End of picture text -----**<br>


_Contacts:_ Silver alloy, gold plated 

_Set Point Range:_ 10-400 PSI _Operating Pressure:_ 500 PSI _Proof Pressure:_ 2000 PSI _Burst Pressure:_ 4000 PSI 

|**Specifications**<br>_Type:_Direct action blade contact<br>_Contacts:_Silver alloy, gold plated<br>_Set Point Range:_10-400 PSI<br>_Operating Pressure:_500 PSI|||||_1.47” REF._<br>S 2|
|---|---|---|---|---|---|
|_Operating Pressure:_500 PSI||**5000 Series Ultra Duty**<br>**2 Terminals**|||**Metri-Pack Integral Connector**|
|_Proof Pressure:_2000 PSI||**Pressure Switches**|||**(See Note 1)**|
|_Burst Pressure:_4000 PSI<br>_Base:_Plated Steel — Screw Machined<br>3-piece construction<br>_Diaphragm:_Polymide Film<br>_Connector:_1/8-27 NPT Male Thread<br>_Temperature Range:_-40°F to +250°F<br>_Terminals:_#8-32 screws, 1/4” blade,<br>280 Series Metripack<br>_Circuitry:_SPST-N.O., N.C., SPDT||**Contact**<br>**Factory  Circuitry  Screw**<br>**Blade**<br>**Contact**<br>**Factory  Circuitry  Part #**<br>**Setting**<br>**Set At**<br>**Part #**<br>**Part #**<br>**Setting**<br>**Set At**<br>N.O.<br>83298<br>83313<br>N.O.<br>83328<br>10-35 PSI<br>20 PSI<br>N.C.<br>83299<br>83314<br>10-30 PSI<br>20 PSI<br>N.C.<br>83329<br>±4 psi<br>± 4 psi<br>DC*<br>83300<br>83315<br>DC*<br>83330<br>N.O.<br>83301<br>83316<br>N.O.<br>83331<br>35-75 PSI<br>60 PSI<br>N.C.<br>83302<br>83317<br>30-65 PSI<br>45 PSI<br>N.C.<br>83332<br>± 6psi<br>± 5psi<br>DC*<br>83303<br>83318<br>DC*<br>83333<br>N.O.<br>83304<br>83319<br>85 PSI<br>N.O.<br>83334<br>~~=== _==~~<br>~~Ff~~<br>~~rT~~<br>~~ae ee es ~~esGs ~~e~~~~**s**~~<br>_ |~~RR~~<br>~~Ft~~<br>~~r~~<br>~~d~~<br>~~es~~<br>~~ee~~<br>~~es~~<br>~~es Gs~~||||
|_Cover:_Glass Reinforced Polyester<br>_Options:_Base connector sizes, wire<br>leads, N.O./N.O. dual circuit and||75-150 PSI<br>100 PSI<br>N.C.<br>83305<br>83320<br>±10 psi<br>DC*<br>83306<br>83321<br>N.O.<br>83307<br>83322<br>~~PF fT~~<br>~~a~~<br>~~ee~~<br>~~es~~|||65-125 PSI<br>N.C.<br>83335<br>± 7 psi<br>DC*<br>83336<br>N.O.<br>83337<br>~~rT~~<br>~~es Gs~~|
|N.C./N.C. dual circuit.||N.C.<br>83308<br>83323|||N.C.<br>83338|
|**_Ratings:_**<br>_Resistive:_<br>15  AMP-<br>6  VDC<br>8  AMP-<br>12  VDC<br>4  AMP-<br>24  VDC<br>_Inductive:_<br>1  AMP- 120  VAC<br>0.5 AMP- 240  VAC||150-250 PSI<br>200 PSI<br>125-200 PSI<br>165 PSI<br>± 15 psi<br>± 10 psi<br>DC*<br>83309<br>83324<br>DC*<br>83339<br>N.O.<br>83310<br>83325<br>N.O.<br>83340<br>250-400 PSI<br>300 PSI<br>N.C.<br>83311<br>83326<br>200-400 PSI<br>300 PSI<br>N.C.<br>83341<br>± 20 psi<br>± 15 psi<br>DC*<br>83312<br>83327<br>DC*<br>83342<br>~~PF fT~~<br>~~rT~~<br>~~ae~~ ee ee es es es<br>— |~~AREF~~||||
|||||||
|**Approximate Dead Band**<br>**Standard Switches**||**Metri-Pack Switches**|||**_Note 1:_**_Mating connector for N.O. and N.C. is_<br>_Packard Part# 15300027;  Mating connector for_|
|Contact Setting<br>Dead Band||10-30 PSI<br>30-65 PSI<br>20-35 PSI<br>35-55 PSI|||_DC is Packard Part# 12034147._<br>**_DC*_**_- The N.C. is the reference circuit for the_|
|10-35 PSI<br>15-25 PSI||65-125 PSI<br>60-85 PSI|||_DC Switch; the N.O. circuit is not adjusted.  The_|
|35-75 PSI<br>75-150 PSI<br>25-35 PSI<br>40-60 PSI||125-200 PSI<br>200-400 PSI<br>85-115 PSI<br>150-200 PSI|||_approximate dead band between the N.C. and_<br>_N.O. circuit is shown in the charts.  For applications_<br>_requiring the N.O. circuit as the reference circuit,_|



||**Approximate Dead Band**<br>**Standard Switches**|**Approximate Dead Band**<br>**Standard Switches**||
|---|---|---|---|
|Contact Setting<br>**Standard Switches**<br>Dead Band|**Standard Switches**|||
|10-35 PSI<br>35-75 PSI<br>75-150 PSI<br>150-250 PSI<br>250-400 PSI||15-25 PSI<br>25-35 PSI<br>40-60 PSI<br>50-70 PSI<br>80-100 PSI||



_**DC*** - The N.C. is the reference circuit for the DC Switch; the N.O. circuit is not adjusted.  The approximate dead band between the N.C. and N.O. circuit is shown in the charts.  For applications requiring the N.O. circuit as the reference circuit, the N.C. circuit is not adjusted._ 

**3** 

Set Points from 0.5 to 150 psi 5000 Series Extended Duty Pressure Switch With Direct Action Blade Contacts 

The 5000 Series switch is specifically designed to stand up to extended duty applications.  This switch is factory set but capable of field adjustment. It features a Kapton diaphragm for compatibility with a wide variety of fluids, and various terminations including a Metri-Pack connector that forms a tight seal when connected. Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity. 

## **Standard Specifications** ~~Se~~ 

_Type:_ Direct action blade contact _Contacts:_ Silver alloy, gold plated _Set Point:_ Factory set from 0.5 to 150 PSI 

## _Operating Pressure:_ 

150 PSI for 0.5-24 PSI set point range, 250 PSI for 25-150 PSI set point range _Proof Pressure:_ 500 PSI 

**Switch Boot P/N 79380 for Vacuum and Pressure** | 

_Burst Pressure:_ 750 PSI for 0.5-24 PSI set point range 1250 PSI for 25-150 PSI set point range. 

_**Ratings:** Resistive:_ 15  AMP6  VDC 8  AMP12  VDC 4  AMP24  VDC _Inductive:_ 1 AMP- 120  VAC 0.5 AMP- 240  VAC 

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2.9” REF.<br>**----- End of picture text -----**<br>


_Diaphragm:_ Polyimide film 

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2.3” REF.<br>1.47” REF.<br>**----- End of picture text -----**<br>


**5000 Series Switch with Screw Terminals** | 

## _Temperature_ 

_Range:_ -40° F to + 250° F _Connector:_ 1/8 -27 NPT male thread _Terminals:_ #8-32 screws, 

1/4” blade, 280 Series Metri-Pack _Circuitry:_ SPST-N.O., N.C., 

1 circuit adjustable dual circuit, or 2 circuits adjustable dual circuit. ~~_1.47” REF._~~ Also available are N.O./N.O. dual circuit **5000 Series Switch with Metri-Pack Terminal** and N.C./N.C. dual circuit. _Base:_ Plated Steel Cd _Cover:_ Glass reinforced polyester _Options:_ Brass, plastic or stainless steel base; various base connector thread sizes; wire leads (potted & sealed). 

_**NOTE:** OPERATING MEDIA (PRESSURE SWITCH)_ The pressure switch is designed to operate with air, motor oils, transmission oils, jet fuels and other similar hydrocarbon media. 

**4** 

## 5000 Series Pressure Switch With Standard Terminal 

||||_Single Circuit_<br>_1 Terminal_|_Single Circuit_<br>_1 Terminal_|_Single Circuit_<br>_2 Terminals_|_Single Circuit_<br>_2 Terminals_|_Dual Circuit_<br>_One circuit adjustable1_|_Dual Circuit_<br>_One circuit adjustable1_|_Dual Circuit_<br>_Both circuits adjustable2_|_Dual Circuit_<br>_Both circuits adjustable2_|_Dual Circuit_<br>_Both circuits adjustable2_|
|---|---|---|---|---|---|---|---|---|---|---|---|
|_Contact_<br>_Setting_|_Factory_<br>_Set At_|_Circuitry_|_Part Number_||_Part Number_||_Part Number_||_Contact_<br>_Setting3_|_Part Number_||
||||_Screw_|_Blade_|_Screw_|_Blade_|_Screw_|_Blade_||_Screw_|_Blade_|
|_0.5-1 PSI_<br>_±0.3_|_1 PSI_|_N.O._|_78630_|_78631_|_78628_|_78629_|_78711_|_78712_|_3-4 PSI_<br>_±0.5_|_76081_|_76086_|
|||_N.C._|_78634_|_78635_|_78632_|_78633_||||||
|_1.1-3 PSI_<br>_±0.5_|_2 PSI_|_N.O._|_78142_|_78399_|_76051_|_76056_|_76071_|_76076_|_5-8 PSI_<br>_±1_|_76582_|_76590_|
|||_N.C._|_78149_|_78406_|_76061_|_76066_||||||
|_3.1-7 PSI_<br>_±1_|_4 PSI_|_N.O._|_78143_|_78400_|_76575_|_76583_|_76579_|_76587_|_9-24 PSI_<br>_±2_|_76082_|_76087_|
|||_N.C._|_78150_|_78407_|_76577_|_76585_||||||
|_8-13 PSI_<br>_±2_|_10 PSI_|_N.O._|_78144_|_78401_|_76576_|_76584_|_76580_|_76588_|_25-50 PSI_<br>_±3_|_76083_|_76088_|
|||_N.C._|_78151_|_78408_|_76578_|_76586_||||||
|_14-24 PSI_<br>_±3_|_15 PSI_|_N.O._|_78145_|_78402_|_76052_|_76057_|_76072_|_76077_|_51-90 PSI_<br>_+5/-2_|_76084_|_76089_|
|||_N.C._|_78152_|_78409_|_76062_|_76067_||||||
|_25-50 PSI_<br>_±5_|_35 PSI_|_N.O._|_78146_|_78403_|_76053_|_76058_|_76073_|_76078_|_91-150 PSI_<br>_+8/-2_|_76085_|_76090_|
|||_N.C._|_78153_|_78410_|_76063_|_76068_||||||
|_51-90 PSI_<br>_±7_<br>_91-150PSI_<br>_±10_|_60 PSI_|_N.O._|_78147_|_78404_|_76054_|_76059_|_76074_|_76079_||||
|||_N.C._|_78154_|_78411_|_76064_|_76069_||||||
||_100 PSI_|_N.O._|_78148_|_78405_|_76055_|_76060_|_76075_|_76080_||||
|||_N.C._|_78155_|_78412_|_76065_|_76070_||||||



## 5000 Series Pressure Switch With Metri-Pack Terminal 

||||_Single Circuit_<br>_(Mates with Packard_<br>_P/N 15300027)_|_Single Circuit_<br>_(Mates with Packard_<br>_P/N 15300027)_|_Dual Circuit_<br>_One circuit adjustable1_<br>_(Mates with Packard_<br>_P/N 12034147)_|_Dual Circuit_<br>_One circuit adjustable1_<br>_(Mates with Packard_<br>_P/N 12034147)_|_Dual Circuit_<br>_Both circuits adjustable2_<br>_(Mates with Packard_<br>_P/N 12034147)_|_Dual Circuit_<br>_Both circuits adjustable2_<br>_(Mates with Packard_<br>_P/N 12034147)_|
|---|---|---|---|---|---|---|---|---|
|_Contact_<br>_Setting_|_Factory_<br>_Set At_|<br>_Circuitry_||_Part Number_|_Part Number_<br>_Contact_<br>_Setting3_|||_Part_<br>_Number_|
|_1-3 PSI_<br>_±0.5_|_2 PSI_|_N.O._||_77029_|_77038_|_3-4 PSI_<br>_±0.5_||_77047_|
|||_N.C._||_77020_|||||
|_4-6 PSI_<br>_±1_|_5 PSI_|_N.O._||_77030_|_77039_|_5-10 PSI_<br>_±1_||_77048_|
|||_N.C._||_77021_|||||
|_7-12 PSI_<br>_±2_|_10 PSI_|_N.O._||_77031_|_77040_|_11-24 PSI_<br>_±2_||_77049_|
|||_N.C._||_77022_|||||
|_13-24 PSI_<br>_±3_|_20 PSI_|_N.O._||_77032_|_77041_|_25-46 PSI_<br>_±3_||_77050_|
|||_N.C._||_77023_|||||
|_25-46 PSI_<br>_±5_|_35 PSI_|_N.O._||_77033_|_77042_|_47-76 PSI_<br>_+5/-2_||_77051_|
|||_N.C._||_77024_|||||
|_47-76 PSI_<br>_±6_|_60 PSI_|_N.O._||_77034_|_77043_|_77-100 PSI_<br>_+7/-2_||_77052_|
|||_N.C._||_77025_|||||
|_77-100 PSI_<br>_±7_|_85 PSI_|_N.O._||_77035_|_77044_|_101-126 PSI_<br>_+9/-2_||_77053_|
|||_N.C._||_77026_|||||
|_101-126_<br>_±9_|_115 PSI_|_N.O._||_77036_|_77045_|_127-150 PSI_<br>_+10/-2_||_77054_|
|||_N.C._||_77027_|||||
|_127-150 PSI_<br>_±10_|_135 PSI_|_N.O._||_77037_|_77046_||||
|||_N.C._||_77028_|||||



_Notes:_ 1. The N.C. circuit is the reference circuit for the dual circuit switch; the normally open circuit is not adjusted.  The expected dead band between the N.C. & N.O. circuit is shown in the chart below.  For applications requiring the normally open circuit as the reference circuit the N.C. circuit is not adjusted. 2. Switch may be adjusted so that: A. N.C. circuit opens before N.O. circuit closes. B. N.C. and N.O. circuit have same set point. C. N.O. circuit closes before the N.C. circuit opens.  (There is no dead band and both circuits are on for a brief period of time.) 

3. The tolerances given in the table are applicable to a switch adjusted so that the N.O. circuit closes before the N.C. circuit opens and applies to the N.C. circuit.  The N.O. set point and tolerances are such that a minimum overlap of 1 PSI exists during which both circuits are on. 

Note 1: Expected Dead Band (Higher than N.C. circuit) 

|_Contact_<br>_Setting_|_Dead Band_|
|---|---|
|_0.5-3 PSI_|_1.5 PSI_|
|_4-7 PSI_|_2.5 PSI_|
|_8-13 PSI_|_3.5 PSI_|
|_14-24 PSI_|_8 PSI_|
|_25-50 PSI_|_15 PSI_|
|_51-90 PSI_|_23 PSI_|
|_91-150 PSI_|_40 PSI_|



**5** 

Set Points from 1.1” to 22” Hg 5000 Series Extended Duty Vacuum Switches With Direct Action Blade Contacts 

The 5000 Series switch is specifically designed to stand up to extended duty applications.  This switch is factory set. It features a fluorosilicone rubber diaphragm for compatibility with a wide variety of fluids, and various terminations including a Metri-Pack connector that forms a tight seal when connected.  Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity. 

**==> picture [28 x 6] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.3” REF.<br>**----- End of picture text -----**<br>


**Switch Boot P/N 79380 for Vacuum and Pressure** 

## **Standard Specifications** 

_Type:_ Direct action blade contact _Contacts:_ Silver alloy, gold plated _Set Point:_ Factory set _Vacuum:_ 1.1 to 22” Hg _Operating Pressure:_ 30” Hg vacuum max. _Burst Pressure:_ 150 PSI 

~~_1.47” REF._~~ 

**5000 Series Switch with Screw Terminals** ~~—~~ 

## _**Ratings:**_ 

_Resistive:_ 15  AMP6  VDC 8  AMP12  VDC 4  AMP24  VDC _Inductive:_ 1  AMP- 120  VAC 0.5  AMP- 240  VAC _Diaphragm: Fluorosilicone elastomer Temperature Range:_ -40° F to + 250° F _Connector:_ 1/8-27 NPT male thread _Terminals:_ #8-32 screws, 1/4” blade, 280 Series Metri-Pack _Circuitry:_ SPST-N.O., N.C. _Base:_ Brass _Cover:_ Glass reinforced polyester _Options:_ Various base connector thread sizes; wire leads (potted & sealed). 

## 5000 Series Vacuum Switch 

|5000 Series Vacuum Switch|5000 Series Vacuum Switch|5000 Series Vacuum Switch|5000 Series Vacuum Switch||||
|---|---|---|---|---|---|---|
|5000 Series Vacuum Switch|||||_Two Terminals_||
|_Contact Setting_|_Circuitry_||||||
|||_Part Number_|||_Part Number_||
|||_Screw_|_Blade_||_Screw_|_Blade_|
|_1.1-22” Hg_|_N.O._|_78813_|_78814_||_77342_|_77344_|
||_N.C._|_78815_|_78816_||_77343_|_77345_|



_Standard set points are 2”Hg(27” H2O),  4”Hg, 9”Hg, and 17”Hg_ 

_Contact Setting Tolerance 1.1-3”Hg (15-41”H2O) ±.22”Hg(3”H2O) 4-8”Hg ±1”Hg 9-17”Hg ±2”Hg 18-22”Hg ±3”Hg_ ~~—~~ 

**6** 

Set Points from 200 to 1000 psi 5000 Series Extended Duty Piston Switches With Direct Action Blade Contacts 

**==> picture [33 x 6] intentionally omitted <==**

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3.05” REF.<br>**----- End of picture text -----**<br>


**==> picture [291 x 212] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.45” REF.<br>1.47” REF. 1.47” REF.<br>**----- End of picture text -----**<br>


**5000 Series Piston Switch 5000 Series Piston Switch with Screw Terminals with Metri-Pack Terminal** 

|**Piston Switch**<br>**with Standard Terminal**|**Piston Switch**<br>**with Standard Terminal**|**Piston Switch**<br>**with Standard Terminal**|**Piston Switch**<br>**with Standard Terminal**|||||
|---|---|---|---|---|---|---|---|
||**Piston Switch**<br>**with Standard Terminal**|||_Single Circuit_||_Dual Circuit *_<br>_one circuit adjustable_||
||Contact Setting<br>Range|Approximate<br>Differential|Circuitry|_Part Number_||_Part Number_||
|||||_Screw_|_Blade_|_Screw_|_Blade_|
||200-400<br>±30|30-100|N.O.|79700|79701|79712|79713|
||||N.C.|79702|79703|||
||401-800<br>±60|40-125|N.O.|79704|79705|79714|79715|
||||N.C.|79706|79707|||
||801-1000<br>±90|50-180|N.O.|79708|79709|79716|79717|
||||N.C.|79710|79711|||



|**Piston Switch**<br>**with Metri-Pack Terminal**|**Piston Switch**<br>**with Metri-Pack Terminal**|**Piston Switch**<br>**with Metri-Pack Terminal**|**Piston Switch**<br>**with Metri-Pack Terminal**|||
|---|---|---|---|---|---|
||**Piston Switch**<br>**with Metri-Pack Terminal**|||_Single Circuit_<br>_(Mates with Packard_<br>_P/N 15300027)_|_Dual Circuit *_<br>_one circuit adjustable_<br>_(Mates with Packard_<br>_P/N 12034147)_|
||Contact Setting<br>Range|Approximate<br>Differential|Circuitry|||
|||||_Part Number_|_Part Number_|
||200-350<br>±30|30-100|N.O.|79718|79724|
||||N.C.|79719||
||351-500<br>±45|40-125|N.O.|79720|79725|
||||N.C.|79721||
||501-750<br>±60|50-150|N.O.|79722|79726|
||||N.C.|79723||



* Note: The N.C. circuit is the reference circuit for the dual circuit switch; the normally open circuit is not adjusted. For applications requiring the normally open circuit as the reference circuit,  the N.C. circuit is not adjusted. 

Specify: 1. Set point  2. Actuate on increasing or decreasing pressure 3. SPST N.O. or N.C. SPDT. 

The 5000 Series piston switch is specifically designed for extended duty applications with set point requirements from 200 to 1000 PSI.  This switch is factory set with various terminations available including a Metri-Pack connector that forms a tight seal when connected.  Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity. This switch has a wide media compatibility making it ideal for a number of applications. 

## **Standard Specifications** 

_Type:_ Direct action blade contact _Contacts:_ Silver alloy, gold plated _Set Point:_ Factory set _Pressure:_ 200-1000 PSI _Operating Pressure:_ 1000 PSI 

_Proof Pressure:_ 2000 PSI _Burst Pressure:_ 3000 PSI 

_**Ratings:** Resistive:_ 15  AMP6  VDC 8  AMP12  VDC 4  AMP24  VDC _Inductive:_ 1  AMP- 120  VAC 0.5  AMP- 240  VAC _Standard Seal:_ Nitrile (others available) _Temperature Range:_ -40° F to + 250° F _Connector:_ 1/2-20 UNF (o-ring fitting) _Terminals:_ #8-32 screws, 1/4” blade, 280 Series Metri-Pack _Circuitry:_ SPST-N.O., N.C., D.C. _Base:_ Steel _Cover:_ Glass reinforced polyester _Options:_ Brass, stainless steel base; o-ring fittings; seal for brake fluid; wire leads (potted and sealed); boot p/n 79380 (see photo on page 4.) 

**7** 

Set Points from 2 to 70 psi and 2” to 22” Hg 

Series III Factory Set Variable Differential Pressure & Vacuum Switches With Snap Action Contacts 

The Series III switch is a customizable switch built per customer specifications. It features a non-ferrous chamber and excellent set point integrity at extreme temperatures.  The exclusive snap switch features:  Low-contact resistance, wiping action, fast transfer time, gold over silver contacts, and an adjustable differential.  It’s been thoroughly tested for shock and vibration resistance and is particularly valuable in applications where hysteresis, fast transfer time, and low contact resistance are vital. 

## **Vacuum Switch Standard Specifications** 

and excellent set point integrity at _Type:_ Snap action switch extreme temperatures.  The exclusive _Set Point:_ Factory set snap switch features:  Low-contact _2.5” REF. Vacuum:_ 2 to 22” Hg resistance, wiping action, fast transfer time, gold over silver contacts, and 15 to 36” H2O an adjustable differential.  It’s been _Operating_ thoroughly tested for shock and _Pressure:_ 200 PSI vibration resistance and is particularly |al _Proof Pressure:_ 350 PSI valuable in applications where hysteresis, fast transfer time, and low _Burst Pressure:_ 500 PSI contact resistance are vital. “1s _**Ratings:** Resistive:_ 15  AMP6  VDC **Pressure Switch** ~~_1.69” REF._~~ **Standard Specifications** 8 AMP12  VDC 4 AMP24  VDC _Type:_ Snap action switch **Series III** _Inductive:_ 1 AMP- 120  VAC _Set Point:_ Factory set **Pressure Switch** _Pressure:_ 1-70 PSI ~~|~~ 0.5  AMP- 240  VAC _Operating_ (Vacuum Switch Similar) Dry circuits _Pressure:_ 200 PSI _Proof Pressure:_ 350 PSI _Burst Pressure:_ 500 PSI Series III pressure and vacuum switches are custom built _Diaphragm:_ Silicone rubber **Ratings:** switches designed to customer specifications therefore minimum ship quantitities are required and are not available off-the-shelf. _Temperature Range:_ -40° F to + 250° F _Resistive:_ 15  AMP6  VDC _Connector:_ 1/8 -27 PTF SAE 8  AMP12  VDC short male thread 4  AMP24  VDC _Inductive:_ 1  AMP- 120  VAC **Pressure Switch/Factory Set** _Terminals:_ 8” Wire leads-18 ga. 0.5  AMP- 240  VAC Reference # Set Point Range Differential _Circuitry:_ SPST-N.O. or N.C., SPDT Dry circuits 120000 2-4 PSI 1-1.5 PSI _Base:_ Brass 120001 4-12 PSI 2-6 PSI _Housing:_ Die cast zinc _Diaphragm:_ Beryllium copper 120002 12-24 PSI 8-12 PSI _Temperature_ 120003 24-40 PSI 10-18 PSI _Options:_ Silver contacts, silver _Range:_ -40° F to + 250° F 120004 40-70 PSI 15-20 PSI soldered base, _Connector:_ 1/8 -27 PTF SAE short fluorosilicone rubber male thread _Terminals:_ 8” Wire leads-18 ga. diaphragm _Circuitry:_ SPST-N.O. or N.C., **Vacuum Switch/Factory Set** _Terminations:_ Wire leads with wide SPDT _Base:_ Brass Reference # Set Point Range Differential selection of Cannon, _Housing:_ Die cast zinc 120005 15-36” H2O 4-12” H2O Packard, AMP, and others _Options:_ Silver contacts, 120006 2-6” Hg 0.4-1” Hg available silver soldered base 120007 6-12” Hg 0.4-1” Hg _Terminations:_ Wire leads with wide 120008 12-22” Hg 0.6-1.5” Hg _Connectors:_ 1/4” and 3/8” PTF SAE selection of Cannon, short; 1/2-20 UNF Packard, AMP, and **Specify:** 1. Set Point (o-ring fitting); others available 2. Actuate on increasing or decreasing pressure _Connectors:_ 1/4” and 3/8” PTF 3. SPST N.O. or N.C., SPDT 3/8-24 UNF (3/16” tube); SAE short; 1/2-20 7/16-24 UNF (1/4” tube); UNF (o-ring fitting); and Metric 3/8-24 UNF (3/16” tube); 7/16-24 UNF (1/4” tube); and metric 

**8** 

Set Points from 35 to 3000 psi 

Series V High Pressure Environmentally Sealed, Extreme-Duty Switches With Snap Action Contacts 

The Series V switch is a high pressure switch with set points up to 3000 PSI and is built to exact customer specifications. Excellent set point integrity at extreme temperatures and wide fluid compatibility make this switch ideal for extreme duty applications.  And, under all operating conditions, it boasts an excellent response time.  Like the Series III, the Series V exclusive snap switch has an adjustable differential, low contact resistance, wiping action, fast transfer time, and gold over silver contacts. This switch is beneficial where hysteresis, fast transfer time, and low contact resistance are vital. 

_3.19” REF. 3.34” REF._ exclusive snap switch has an adjustable differential, low contact resistance, wiping action, fast transfer time, and gold over silver contacts. This switch is beneficial where hysteresis, fast transfer time, and low contact resistance are vital. **Standard Specifications** _Type:_ Snap action switch _Set Point:_ Factory set _Pressure:_ 35-300 PSI (elastomeric diaphragm) 100-3000 PSI (steel  piston) ~~e~~ ~~_1.187_~~ _”_ ~~_REF._~~ e ~~l~~ ~~_1.187” REF._~~ _Operating Pressure:_ Diaphragm 300 PSI ~~i~~ **Diaphragm Type Piston Type** Piston 3000 PSI _Proof:_ Diaphragm 500 PSI Piston 5000 PSI _Burst:_ Diaphragm 2000 PSI **Diaphragm Type Specify:** 1. Set Point Piston 10000 PSI 2. Actuate on increasing Reference Number Set Point Range Differential or decreasing pressure _**Ratings:**_ 26900 35-50 PSI 10-15 PSI 3. SPST N.O. or N.C., _Resistive:_ 15  AMP6  VDC 26901 50-100 PSI 10-15 PSI SPDT 8  AMP12  VDC 26902 100-200 PSI 10-15 PSI 4  AMP24  VDC _Inductive:_ 1  AMP- 120  VAC 26903 200-300 PSI 10-20 PSI 0.5  AMP- 240  VAC Series V pressure and vacuum switches are custom built switches designed Dry circuits to customer specifications therefore _Temperature_ **Piston Type** minimum ship quantitities are required and are not available off-the-shelf.and are not available off-the-shelf. _Range:_ -40°F to +250°F Reference Number Set Point Range Differential _Connector:_ Diaphragm 1/8-27 PTF 26904 100-150 PSI 35-50 PSI SAE short male thread 26905 150-250 PSI 50-75 PSI _Piston:_ 3/4-16 UNF (o-ring fitting) 26906 250-500 PSI 75-100 PSI _Terminals:_ 8” Wire leads-18 ga. 26907 500-750 PSI 100-150 PSI _Circuitry:_ SPST-N.O. or N.C., SPDT 26908 750-1000 PSI 150-300 PSI _Base:_ Plated steel 26909 1000-1250 PSI 175-350 PSI _Housing:_ Plated steel 26910 1250-1500 PSI 175-360 PSI _Options:_ Silver contacts 26911 1500-1750 PSI 220-370 PSI _Terminations:_ Wide selection of 26912 1750-2000 PSI 230-380 PSI Cannon, Packard, AMP, 26913 2000-2250 PSI 250-390 PSI and others available 26914 2250-2500 PSI 355-400 PSI _Connectors:_ 1/2-20 UNF (o-ring fitting); 26915 2500-2750 PSI 370-420 PSI 9/16-18 UNF (o-ring 26916 2750-3000 PSI 385-450 PSI fitting); M14x1.5 (o-ring fitting); Others available 

2. Actuate on increasing or decreasing pressure 3. SPST N.O. or N.C., SPDT 

Series V pressure and vacuum switches are custom built switches designed to customer specifications therefore minimum ship quantitities are required and are not available off-the-shelf.and are not available off-the-shelf. 

upon request. 

**9** 

Switch Definitions and Terminology 

**Pressure/Vacuum Switch** - A device that senses a change in pressure/ vacuum and opens or closes an electrical circuit when the set point is reached. 

**Set Point** - The pre-determined pressure/vacuum value that is required to open or close the electrical contacts in the switch. 

**Electrical Contacts** - The elements in the switch that electrically respond to the media applied to the actuator. Snap action contacts with a “self-cleaning” wiping effect are used in Series III and Series V switches. Direct action blade contacts are used in the 5000 Series. 

**Pressure Switch Actuator** - The member in the switch which receives the media and ultimately strokes the electrical contacts to open or close at the designated set point.  The actuator in the Series III is a beryllium copper or silicone rubber diaphragm.  An elastomeric diaphragm or piston actuator is used in the Series V. The 5000 Series uses a polyimide film diaphragm. 

**Normally Open (SPST-N.O.)** - A normally open switch does not conduct an electrical signal until the actuator is moved by the media causing the contacts to close. 

**Normally Closed (SPST-N.C.)** - A normally closed switch conducts electricity until the actuator is moved by the media causing the contacts to open. 

**Dual Circuit (SPDT)** - A normally open and normally closed circuit are contained in a switch. 

**Dual Circuit (N.O./N.O.)** - Switch contains two normally open circuits. 

## **System Pressure/Vacuum** - This is 

the normal pressure/vacuum that would be present at the switch actuator.  This value is important in order to apply the proper switch configuration.  Even though the set point may be relatively low, the system pressure would continue to be applied to the switch actuator in most cases. 

||||||
|---|---|---|---|---|
||**Conversion Factors**||||
||_Convert_|_To_|_Multiply By_||
||||||
||_kPa_<br>_PSI_<br>_BARS_<br>_PSI_<br>_Hg”_<br>_PSI_<br>_H2O”_<br>_PSI_<br>_H2O”_<br>_Hg”_<br>_°_|_PSI_<br>_kPa_<br>_PSI_<br>_BARS_<br>_PSI_<br>_Hg”_<br>_PSI_<br>_H2O”_<br>_Hg”_<br>_H2O”_<br>|_.145_<br>_6.8948_<br>_14.5_<br>_.069_<br>_.4912_<br>_2.036_<br>_.03613_<br>_27.6778_<br>_.07355_<br>_13.5962_<br>_°_||
||_C_<br>_F°_|_F°_<br>_C°_|_1.8(C +17.78)_<br>_F-32÷1.8_||



**Proof Pressure** - This specification is the maximum over-pressure condition that the switch can have for a specified period of time and still maintain set point integrity. 

**Burst Pressure** - This specification is the maximum over pressure condition that the switch can withstand without experiencing leakage. 

**Dry Circuit Load** - Typically this would be a very low electrical load associated with microprocessors when the open circuit voltage is .03V or less and the current is 40mA or less. 

**Resistive Load** - A load in which the voltage is in phase with the current. 

**Inductive Load** - A load in which the voltage leads the current. 

**Motor Load** - The load of a motor at rated horsepower and speed. 

**Capacitive Load** - A load which the current leads the voltage. 

**Differential** - The difference between opening (actuation) pressure and the closing (de-actuation) set points.  This is also referred to as “dead band”.  For example, a switch set at 150 PSI to open on increasing pressure and close at 95 PSI on decreasing pressure would have a differential of 55 PSI (150-95=55). 

**Dual Circuit (N.C./N.C.)** - Switch contains two normally closed circuits. 

**10** 

Honeywell's Springfield and Spring Valley, Illinois facilities manufacture a broad range of electro and electronicmechanical products that include Hobbs hour meters, pressure and vacuum switches, off-highway vehicular lighting, transmission shifters, turn signal controls, rotary switches, and off-highway vehicular hand controls. Honeywell's customer base is very broad including industries such as automotive, agricultural, material handling, construction, marine, medical, heavy truck, lawn and garden, recreational, generators, compressors and aviation. Our commitment to continuous improvement and total quality management will allow for further expansion of its product lines and customer base while maintaining the highest standards of excellence. 

## MANUFACTURING 

## ~~OO~~ 

Honeywell's commitment to the customer in past years and present is what has helped us develop our world-class manufacturing systems.  Some of the methods by which we continuously improve products and processes are as follows: 

- Six Sigma methodology is a strategy used to accelerate improvements in our processes, products and services, and to reduce manufacturing costs and improve quality. It achieves this by relentlessly focusing on eliminating waste and reducing defects and variations. 

- Continuous Flow Process utilizing “Rabbit Chase” concepts are used in the focused factories in order to achieve the lowest total cost, defect-free product. 

- Single Minute Exchange of Dies (SMED method) provides reduced time in the molding cell. 

Statistical Process Control is used for measuring critical dimensions and controlling manufacturing processes. 

Poka-Yoke method and computerized test equipment are utilized to eliminate scrap and rework. 

Kanban cards are used to pull raw material and piece parts through the factory. 

- Bar coding and electronic data interchange (EDI) are available. 

## QUALITY SYSTEMS 

It is the goal of Honeywell to meet customer value-needs through continuously improved products and processes. That is the basis by which we work to create a partnership with our customers.  Evidence of our commitment is proven by a goal of a Shipped Product Quality Level (SPQL) of 100 ppm. We utilize Advanced Quality Planning, and a QS9000 based quality system. 

**11** 

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## Warranty/Remedy 

Honeywell warrants goods of its manufacture as being free of defective material and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during that period of coverage, Honeywell will repair or replace without charge those items it finds defective. **The foregoing is Buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose.** 

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 at any time 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. 

## Sales and Service 

Honeywell serves its customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office or: INTERNET: www.honeywell.com/hobbs E-mail: honeywellhobbs.marketing@honeywell.com 

**For Honeywell pressure and vacuum switches contact the Springfield location at 217-753-7798 or visit www.honeywell.com/hobbs** 

Sensing and Control Honeywell P.O. Box 19424 Springfield, IL 62794-9424 USA 

email: www.honeywellhobbs.marketing@honeywell.com 

www.honeywell.com/hobbs 

**Catalog 10-1003, GLO Printed in the U.S.A.** © 2004 Honeywell International Inc. All Rights Reserved.