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MURPHY 76.PS Pressure Switch
76.PS压力开关
A compact and economical pressure switch for extended duty applications. The 76.PS is primarily designed for direct engine mounting, to provide electrical signalling of a low oil pressure fault.The isolated switch contacts are factory set to close below 15 psi (1 bar), but may be adjusted between 14 and 24 psi (1.0 and 1.6 bar). The polyimide diaphragm is compatible with air, engine oil and other hydrocarbon media. (Contact with waterbased fluids is not recommended.)
Our UK office carries stock of a robust and economical pressure switch, designed primarily for monitoring engine low oil pressure.
The engine-mounted switch features direct action contacts that are factory set to close below 15 psi (field adjustable between 14 and 24 psi). Normally closed or changeover contact options are available. A polyimide Kapton diaphragm gives compatibility with air, oil or other hydrocarbon media.
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Pressure ratings
- Factory setting: 15 psi / 1 bar
- Set point adjustment range: 14–24 (±3) psi / 1.0–1.6 (±0.2) bar
- Max. operating pressure: 150 psi / 10 bar
- Proof pressure: 500 psi / 34 bar
- Burst pressure: 750 psi / 51 bar
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Contacts
- Type: optional SPNC or SPDT direct action contacts (NC contact closes on low pressure), silver alloy, gold plated
- Ratings (resistive DC): 15A @ 6V DC, 8A @ 12V DC, 4A @ 24V DC
- Ratings (inductive AC): 1A @ 120V AC, 0.5A @ 240V AC
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Physical
- Base: plated steel
- Cover: glass reinforced polyester
- Diaphragm: Kapton ? polyimide film Pressure connection: 1/8” - 27 NPT male thread Electrical terminals: #8-32 screws
- Operating temperature: –40 to +121°C / –40 to 250°F
- Dimensions: see sales bulletin
- Weight: approx 65g
- How to order
Part Number Model Description
| Part Number |
Model |
Description |
| Contact EMEA Sales |
76.PS.0015 |
1/8” NPT, 15 psi setting, SPNC contacts |
| Contact EMEA Sales |
76.PS.0001 |
1/8” NPT, 15 psi setting, SPDT contacts |
| Contact EMEA Sales |
76.PS.0001-xxx |
Special setting versions of above, where xxx = required set point pressure |
Special variations on pressure range and contacts are available for volume orders. Please contact our EMEA sales office for details.
Literature
MURPHY 76.TS Temperature Switch
温度开关
A compact, durable switch for initiating engine coolant over-temperature shutdowns or warnings.
The 76.TS is designed for direct engine-mounting via a 1/2" NPT thread. SPDT contacts operate when engine temperature rises above 105°C. Connection is by 1/4" (6.3mm) blade connectors. Other thread sizes and temperature settings are available for volume orders.
Literature:
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