Description
The Supco SMR410 is a manual-reset, high‑pressure safety switch engineered for HVAC and refrigeration systems. Configured to open at approximately 410 psi on pressure rise, it ensures reliable overpressure protection prior to reset. The compact, sealed design supports professional reliability in demanding environments.
Features:
- ¼” SAE 45° female flare fitting with valve core depressor
- Excellent set point repeatability/stability
- Life at rated load: 100,000 cycles
- Manual reset high pressure
- Rated Voltage 24/120/240 VAC @ 50/60 Hz
- Small size and light weight for direct mounting
- Snap acting stainless steel hermetically sealed sensor
- Wire is 18 AWG, 18″ long
Specifications:
- Maximum FLA: 5.8 Amps @ 120VAC
- Maximum FLA: 2.9 Amps @ 240VAC
- Maximum LRA: 34.8 Amps @ 120VAC
- Maximum LRA: 17.4 Amps @ 240VAC
- Ambient Temperature: -31°F to 149°F (-35°C to 65°C)
- Fluid Temperature: -31°F to 275°F (-35°C to 135°C)
- Burst Pressure: 1521 PSI
- Open PSI: 410 PSI
- Tolerance: +/- 15 PSI
- DC Voltage: 6Vdc/12Vdc/36Vdc
- Agency Approvals: UL Recognized, CE










