Supco SMR410 Pressure Switch
The Supco SMR410 High Pressure Switch is a mission-critical safety component engineered for HVACR systems requiring a hard cut-out pressure at 410 PSI. This manual reset pressure switch provides robust overpressure protection for compressors and condensers by opening the circuit on pressure rise. As a veteran-grade SPST high pressure switch, it is the direct replacement for P100DA-1, 43313, and 5709, ensuring seamless integration for field service technicians handling R-410A systems and newer A2L refrigerants. The sensor is built with a snap-acting stainless steel hermetically sealed sensor, specifically chosen for high setpoint repeatability and resistance to vibration-induced failure. With a 1/4" SAE 45° female flare fitting and an integrated valve core depressor, this unit facilitates a fast, leak-free connection directly into the high-side service port. Rated for 100,000 cycles at full load, it maintains electrical integrity across 24V, 120V, and 240V systems.
Key Benefits for Technicians
- Precise Overpressure Protection: Factory-calibrated 410 PSI (±15 PSI) cut-out ensures compressor safety in high-ambient conditions.
- Manual Reset Mechanism: Requires technician intervention after a high-pressure trip, allowing for critical system diagnosis before restarting.
- Broad Refrigerant Compatibility: Fully compatible with HFC, HCFC, CFC, and mildly flammable A2L refrigerants used in modern heat pumps.
- Heavy-Duty Construction: Features a burst pressure rating of 1521 PSI and 18" 18 AWG lead wires for durable field wiring.
- Universal Voltage Ratings: Supports pilot duty and motor loads up to 5.8 FLA at 120VAC and 2.9 FLA at 240VAC.
Common Questions
What is the difference between SMR410 and SAR410?
The SMR410 is a manual reset switch (MR), meaning it stays open until the reset button is pushed. An automatic reset switch (SAR) would close once the pressure drops below the reset point. For high-side safety, manual resets are often preferred to ensure a tech checks for airflow or blockage issues.
Can I use this switch with R-32 or R-454B?
Yes, the SMR410 is designed with a hermetically sealed sensor compatible with A2L refrigerants, making it an ideal choice for transitioning to newer low-GWP systems.
Does this switch require a separate flare nut for installation?
No, it features a built-in 1/4" SAE female flare fitting with a valve core depressor, allowing it to screw directly onto most standard high-side access valves without needing a separate fitting.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $26.41
-65%$26.41
$9.24Supco SMR410 Pressure Switch
The Supco SMR410 High Pressure Switch is a mission-critical safety component engineered for HVACR systems requiring a hard cut-out pressure at 410 PSI. This manual reset pressure switch provides robust overpressure protection for compressors and condensers by opening the circuit on pressure rise. As a veteran-grade SPST high pressure switch, it is the direct replacement for P100DA-1, 43313, and 5709, ensuring seamless integration for field service technicians handling R-410A systems and newer A2L refrigerants. The sensor is built with a snap-acting stainless steel hermetically sealed sensor, specifically chosen for high setpoint repeatability and resistance to vibration-induced failure. With a 1/4" SAE 45° female flare fitting and an integrated valve core depressor, this unit facilitates a fast, leak-free connection directly into the high-side service port. Rated for 100,000 cycles at full load, it maintains electrical integrity across 24V, 120V, and 240V systems.
Key Benefits for Technicians
- Precise Overpressure Protection: Factory-calibrated 410 PSI (±15 PSI) cut-out ensures compressor safety in high-ambient conditions.
- Manual Reset Mechanism: Requires technician intervention after a high-pressure trip, allowing for critical system diagnosis before restarting.
- Broad Refrigerant Compatibility: Fully compatible with HFC, HCFC, CFC, and mildly flammable A2L refrigerants used in modern heat pumps.
- Heavy-Duty Construction: Features a burst pressure rating of 1521 PSI and 18" 18 AWG lead wires for durable field wiring.
- Universal Voltage Ratings: Supports pilot duty and motor loads up to 5.8 FLA at 120VAC and 2.9 FLA at 240VAC.
Common Questions
What is the difference between SMR410 and SAR410?
The SMR410 is a manual reset switch (MR), meaning it stays open until the reset button is pushed. An automatic reset switch (SAR) would close once the pressure drops below the reset point. For high-side safety, manual resets are often preferred to ensure a tech checks for airflow or blockage issues.
Can I use this switch with R-32 or R-454B?
Yes, the SMR410 is designed with a hermetically sealed sensor compatible with A2L refrigerants, making it an ideal choice for transitioning to newer low-GWP systems.
Does this switch require a separate flare nut for installation?
No, it features a built-in 1/4" SAE female flare fitting with a valve core depressor, allowing it to screw directly onto most standard high-side access valves without needing a separate fitting.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
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Description
The Supco SMR410 High Pressure Switch is a mission-critical safety component engineered for HVACR systems requiring a hard cut-out pressure at 410 PSI. This manual reset pressure switch provides robust overpressure protection for compressors and condensers by opening the circuit on pressure rise. As a veteran-grade SPST high pressure switch, it is the direct replacement for P100DA-1, 43313, and 5709, ensuring seamless integration for field service technicians handling R-410A systems and newer A2L refrigerants. The sensor is built with a snap-acting stainless steel hermetically sealed sensor, specifically chosen for high setpoint repeatability and resistance to vibration-induced failure. With a 1/4" SAE 45° female flare fitting and an integrated valve core depressor, this unit facilitates a fast, leak-free connection directly into the high-side service port. Rated for 100,000 cycles at full load, it maintains electrical integrity across 24V, 120V, and 240V systems.
Key Benefits for Technicians
- Precise Overpressure Protection: Factory-calibrated 410 PSI (±15 PSI) cut-out ensures compressor safety in high-ambient conditions.
- Manual Reset Mechanism: Requires technician intervention after a high-pressure trip, allowing for critical system diagnosis before restarting.
- Broad Refrigerant Compatibility: Fully compatible with HFC, HCFC, CFC, and mildly flammable A2L refrigerants used in modern heat pumps.
- Heavy-Duty Construction: Features a burst pressure rating of 1521 PSI and 18" 18 AWG lead wires for durable field wiring.
- Universal Voltage Ratings: Supports pilot duty and motor loads up to 5.8 FLA at 120VAC and 2.9 FLA at 240VAC.
Common Questions
What is the difference between SMR410 and SAR410?
The SMR410 is a manual reset switch (MR), meaning it stays open until the reset button is pushed. An automatic reset switch (SAR) would close once the pressure drops below the reset point. For high-side safety, manual resets are often preferred to ensure a tech checks for airflow or blockage issues.
Can I use this switch with R-32 or R-454B?
Yes, the SMR410 is designed with a hermetically sealed sensor compatible with A2L refrigerants, making it an ideal choice for transitioning to newer low-GWP systems.
Does this switch require a separate flare nut for installation?
No, it features a built-in 1/4" SAE female flare fitting with a valve core depressor, allowing it to screw directly onto most standard high-side access valves without needing a separate fitting.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
