SPS13 Small high current pressure switch
The typical applications of this pressure switch are safety devices, air conditioning and refrigeration equipment.
SPS13 Small High‑Current Pressure Switch utilizes a bellows‑based pressure transfer mechanism with factory‑set fixed actuation points, delivering a stable linear response and long service life. Available in automatic‑reset (with optional manual‑reset) configurations, it offers SPST‑NO, SPST‑NC or SPDT contacts and supports high switching currents up to 25 A. All wetted parts are metallic—brass, stainless steel or copper—making it compatible with air, water, motor/transmission oils, jet fuels and similar hydrocarbon media, while its IP67 enclosure ensures robust environmental protection.
Key Specifications:
• Core Function: Fixed‑set pressure actuation (via bellows) with stable linear coefficient
• Pressure Range: 0.1–6.5 MPa gauge (14.5–942 psi)
• Reset Type: Automatic reset (manual‑reset models optional)
• Contact Versions & Electrical Ratings:
SPST‑NC, SPST‑NO, SPDT
120 VAC/20 A, 250 VAC/10 A; 36 VDC/15 A (maximum 25 A)
UL‑rated options: 24–250 VAC/0.02–6 A; 8–36 VDC/0.02–3 A; 600 VAC/0.02–3 A
• Mechanical Lifespan: 100 000 cycles; Electrical Lifespan: 30 000 cycles
• Media Compatibility: Air, water, motor/transmission oils, jet fuels, other hydrocarbons
• Materials & Protection: Brass/Stainless steel/Copper wetted parts; IP67 enclosure
• Temperature Limits:
Ambient: –40 to +65 °C (≤1.0 MPa) / –40 to +120 °C (>1.0 MPa)
Medium: –40 to +80 °C (≤1.0 MPa) / –40 to +135 °C (>1.0 MPa)
• Process Connections: M10/M12, NPT, R, G, UNF threads or copper tubing (customizable)
Typical Applications:
✔ Over‑pressure safety interlocks in HVAC & refrigeration systems
✔ Pump bypass control and flow monitoring in water/oil circuits
✔ High‑current switching in pneumatic/hydraulic equipment
✔ Industrial automation and chemical‑process safety systems
✔ Engine/compressor protection in automotive and marine installations
Certifications:
- UL
Catalogue：
Additional information
| Medium | Air,water,motor oils,transmission oils,jet fuels and other similar Hydrocarbon Media |
|---|---|
| Pressure set range (gauge pressure) | From 0.1 MPa to 6.5 MPa; below 1.0 MPa is considered low pressure, |
| Switching load | 120VAC /20A,250VAC/10A;36VDC/15A |
| Temperature(Medium) | -40…+80°C[-40…+176°F](Low pressure);-40…+135°C[-40…+275°F](High pressure) |
| Temperature(Ambient) | -40…+65°C[-40…+149°F] (Low pressure);-40…+120°C[-40…+248°F](High pressure) |
| IP grade | IP67 |
