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SupcoSingle-Pressure Encapsulated Control Switches

Supco Pressure Switch: High Limit, Manual Reset, 375 psi to 375 psi, Open on Rise

The SUPCO SMR375 is a single-pressure encapsulated control switch designed as a high-limit pressure switch. It features a manual reset, SPST contact form, and a switch action of Open on Rise with a pressure set point…

SKU 3G-OTH-68383

Also listed as: SMR 375 · SMR-375

Brand
Supco
Item
Pressure Switch: High Limit, Manual Reset, 375 psi to 375 psi, Open on Rise
Category
Single-Pressure Encapsulated Control Switches
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Technical Specifications

Supco
Manufacturer Part Number
SMR375
Type
Manual Reset, 375 psi to 375 psi, Open on Rise, SPST
Contact Form
SPST
Rated Voltage
12V DC
Switch Action
Open on Rise
Pressure Set Point
375 psi to 375 psi

Technical Documents

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Supco Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SUPCO SMR375 is a single-pressure encapsulated control switch designed as a high-limit pressure switch. It features a manual reset, SPST contact form, and a switch action of Open on Rise with a pressure set point of 375 psi to 375 psi. This device operates at a rated voltage of 12V DC.

Frequently Asked Questions

What is the SUPCO SMR375 pressure switch used for?

The SUPCO SMR375 is a high-limit pressure switch that opens on rise at 375 psi to protect equipment from overpressure. It is commonly used in HVAC, refrigeration, and industrial systems where a manual reset is required after a pressure fault.

What are the specifications of the SUPCO SMR375?

The SUPCO SMR375 is a single-pressure encapsulated control switch with SPST contact form, rated voltage of 12V DC, and switch action of Open on Rise. Its pressure set point is 375 psi to 375 psi, and it features a manual reset for high-limit applications.

Where to buy the SUPCO SMR375 worldwide?

You can source the SUPCO SMR375 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the switch reaches your facility reliably.

How to install the SUPCO SMR375 pressure switch?

Install the SUPCO SMR375 by connecting it to the system pressure line and wiring the SPST contacts to the control circuit. Ensure the pressure set point of 375 psi is not exceeded before resetting manually. Always follow generic best practices for pressure switch installation.

Used in

Common applications for Supco
Commercial refrigeration display cases — Supco RO82 relay and CSS-25U starter for compressor motor control without run capacitors
Medium-load HVAC systems — Supco SPP 6/SPP 8 hard-start devices to reduce compressor inrush current and extend motor lifespan
Cold-chain pharmaceutical and food storage — SL300TH temperature–humidity data logger for continuous monitoring and regulatory documentation
Refrigerant service operations — Piercing valves and perforator cocks in 1/2" and 5/8" sizes for fast, non-invasive line access
Compressor thermal management — Universal Compressor Door for reducing shell temperature and improving efficiency in hot ambient conditions
Retrofit and field repairs — Supco controls with Quick Connect terminals for rapid installation in legacy refrigeration circuits

Supco Products

3G Electric supplies Supco single-pressure encapsulated control switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
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