Supco SMR630 Manual Reset High Pressure Switch, 630 PSI Cut-Out, R410A, SPST

Description

The Supco SMR630 is a Manual Reset (MR) high pressure safety switch engineered specifically for R410A refrigerant applications. Designed to open on pressure rise, this SPST switch provides critical system protection by cutting out at 630 PSI — helping prevent compressor and system damage caused by excessive high-side pressure events.

With a manual reset design, the SMR630 requires deliberate technician intervention before the system can restart after a high-pressure trip, ensuring that the root cause of the pressure event is identified and corrected before resuming operation. This makes it an ideal choice for commercial and residential HVAC systems where safety and accountability are paramount.

Key Features

• 630 PSI cut-out (open) pressure set point
• Opens on pressure rise for high-side protection
• Manual Reset (MR) — requires manual reset after trip event
• Optimized for R410A refrigerant applications
• SPST (Single Pole, Single Throw) switching configuration
• Reliable Supco quality construction for long service life

Application

• R410A residential and light commercial air conditioning systems
• Heat pump systems requiring high-pressure safety protection
• Replacement or upgrade of existing high pressure switches

Specifications

• SKU: SMR630
• Brand: Supco
• Cut-Out Pressure: 630 PSI (Open on Pressure Rise)
• Reset Type: Manual Reset (MR)
• Switch Type: SPST (Single Pole, Single Throw)
• Refrigerant Application: R410A