
Supco SLP0520 Pressure Switch
The Supco SLP0520 Low Pressure Switch is a high-precision, non-adjustable SPST safety control engineered to protect compressors from damage due to loss of charge or freeze-up conditions. Built for professional HVAC and refrigeration applications, this encapsulated pressure switch features a 5 PSI cut-out and a 20 PSI cut-in, providing a reliable automatic reset mechanism. It serves as the direct updated replacement for the legacy Supco 5731 series, ensuring seamless compatibility for technicians performing field maintenance or system overhauls.
Constructed with a snap-acting stainless steel hermetically sealed sensor, the SLP0520 offers broad refrigerant compatibility, including HFC, HCFC, CFC, and A2L refrigerants. The compact, direct-mount design utilizes a 1/4" SAE 45° female flare fitting complete with an integrated valve core depressor for rapid installation without the need for additional capillary tubes. With a 100,000-cycle rated load life and 5,000 PSI burst pressure, this low pressure cut-out switch meets the rigorous demands of commercial refrigeration and high-performance air conditioning systems.
Key Benefits for Technicians
- Universal Refrigerant Compatibility: Rated for use with modern environmental standards including A2L low-GWP refrigerants.
- Hardwired Reliability: Equipped with 18" 18 AWG lead wires for secure electrical termination in 24V, 120V, or 240V circuits.
- Durable Construction: The hermetically sealed sensor prevents environmental contamination and moisture ingress, critical for low-ambient operations.
- Direct Replacement: Specifically designed to replace Supco 5731 and similar fixed-setting low-side controls.
- Robust Electrical Ratings: Supports up to 5.8 FLA at 120VAC, providing versatile protection across various compressor sizes.
Common Questions
Is the Supco SLP0520 adjustable in the field?
No, this is a factory-set, non-adjustable switch with a fixed 5 PSI cut-out and 20 PSI cut-in to ensure consistent safety parameters and prevent tampering.
Can this switch be used on the high side of the system?
This model is specifically designed as a low pressure switch that opens on pressure drop. For head pressure control or high-pressure safety, a high-pressure cut-out switch should be selected.
What type of connection does the SLP0520 use?
It features a standard 1/4" SAE female flare fitting with a built-in depressor pin, allowing for direct mounting on a Schrader access valve.
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.
Supco SLP0520 Pressure Switch
The Supco SLP0520 Low Pressure Switch is a high-precision, non-adjustable SPST safety control engineered to protect compressors from damage due to loss of charge or freeze-up conditions. Built for professional HVAC and refrigeration applications, this encapsulated pressure switch features a 5 PSI cut-out and a 20 PSI cut-in, providing a reliable automatic reset mechanism. It serves as the direct updated replacement for the legacy Supco 5731 series, ensuring seamless compatibility for technicians performing field maintenance or system overhauls.
Constructed with a snap-acting stainless steel hermetically sealed sensor, the SLP0520 offers broad refrigerant compatibility, including HFC, HCFC, CFC, and A2L refrigerants. The compact, direct-mount design utilizes a 1/4" SAE 45° female flare fitting complete with an integrated valve core depressor for rapid installation without the need for additional capillary tubes. With a 100,000-cycle rated load life and 5,000 PSI burst pressure, this low pressure cut-out switch meets the rigorous demands of commercial refrigeration and high-performance air conditioning systems.
Key Benefits for Technicians
- Universal Refrigerant Compatibility: Rated for use with modern environmental standards including A2L low-GWP refrigerants.
- Hardwired Reliability: Equipped with 18" 18 AWG lead wires for secure electrical termination in 24V, 120V, or 240V circuits.
- Durable Construction: The hermetically sealed sensor prevents environmental contamination and moisture ingress, critical for low-ambient operations.
- Direct Replacement: Specifically designed to replace Supco 5731 and similar fixed-setting low-side controls.
- Robust Electrical Ratings: Supports up to 5.8 FLA at 120VAC, providing versatile protection across various compressor sizes.
Common Questions
Is the Supco SLP0520 adjustable in the field?
No, this is a factory-set, non-adjustable switch with a fixed 5 PSI cut-out and 20 PSI cut-in to ensure consistent safety parameters and prevent tampering.
Can this switch be used on the high side of the system?
This model is specifically designed as a low pressure switch that opens on pressure drop. For head pressure control or high-pressure safety, a high-pressure cut-out switch should be selected.
What type of connection does the SLP0520 use?
It features a standard 1/4" SAE female flare fitting with a built-in depressor pin, allowing for direct mounting on a Schrader access valve.
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
Shipping & Returns
Description
The Supco SLP0520 Low Pressure Switch is a high-precision, non-adjustable SPST safety control engineered to protect compressors from damage due to loss of charge or freeze-up conditions. Built for professional HVAC and refrigeration applications, this encapsulated pressure switch features a 5 PSI cut-out and a 20 PSI cut-in, providing a reliable automatic reset mechanism. It serves as the direct updated replacement for the legacy Supco 5731 series, ensuring seamless compatibility for technicians performing field maintenance or system overhauls.
Constructed with a snap-acting stainless steel hermetically sealed sensor, the SLP0520 offers broad refrigerant compatibility, including HFC, HCFC, CFC, and A2L refrigerants. The compact, direct-mount design utilizes a 1/4" SAE 45° female flare fitting complete with an integrated valve core depressor for rapid installation without the need for additional capillary tubes. With a 100,000-cycle rated load life and 5,000 PSI burst pressure, this low pressure cut-out switch meets the rigorous demands of commercial refrigeration and high-performance air conditioning systems.
Key Benefits for Technicians
- Universal Refrigerant Compatibility: Rated for use with modern environmental standards including A2L low-GWP refrigerants.
- Hardwired Reliability: Equipped with 18" 18 AWG lead wires for secure electrical termination in 24V, 120V, or 240V circuits.
- Durable Construction: The hermetically sealed sensor prevents environmental contamination and moisture ingress, critical for low-ambient operations.
- Direct Replacement: Specifically designed to replace Supco 5731 and similar fixed-setting low-side controls.
- Robust Electrical Ratings: Supports up to 5.8 FLA at 120VAC, providing versatile protection across various compressor sizes.
Common Questions
Is the Supco SLP0520 adjustable in the field?
No, this is a factory-set, non-adjustable switch with a fixed 5 PSI cut-out and 20 PSI cut-in to ensure consistent safety parameters and prevent tampering.
Can this switch be used on the high side of the system?
This model is specifically designed as a low pressure switch that opens on pressure drop. For head pressure control or high-pressure safety, a high-pressure cut-out switch should be selected.
What type of connection does the SLP0520 use?
It features a standard 1/4" SAE female flare fitting with a built-in depressor pin, allowing for direct mounting on a Schrader access valve.
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.












