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Supco High Pressure Control: High Limit, Manual Reset - Single-Pressure Encapsulated Control Switches
SupcoSingle-Pressure Encapsulated Control Switches

Supco High Pressure Control: High Limit, Manual Reset

The Supco SMR440 is a single-pressure encapsulated control switch configured as a high-pressure control with a high-limit, manual-reset function and a 1/4 in flare connection. This device operates with a rated…

SKU 3G-OTH-68669

Also listed as: SMR 440 · SMR-440

Brand
Supco
Item
High Pressure Control: High Limit, Manual Reset
Category
Single-Pressure Encapsulated Control Switches
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Technical Specifications

Supco
Manufacturer Part Number
SMR440
Rated Voltage
6V DC

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

Product Description

The Supco SMR440 is a single-pressure encapsulated control switch configured as a high-pressure control with a high-limit, manual-reset function and a 1/4 in flare connection. This device operates with a rated voltage of 6V DC. It is designed for use in industrial equipment applications requiring a manual-reset high-pressure limit switch.

Frequently Asked Questions

What is the Supco SMR440 high pressure control used for?

The Supco SMR440 is a single-pressure encapsulated control switch used as a high-limit, manual-reset device in industrial equipment. It protects systems by shutting down operation when pressure exceeds a set limit, requiring manual reset to restart. Common applications include refrigeration, HVAC, and process machinery where a reliable high-pressure cutoff is needed.

What are the specifications of the Supco SMR440?

The Supco SMR440 is a high-pressure control switch with a high-limit, manual-reset function and a 1/4 in flare connection. It operates at a rated voltage of 6V DC. The manufacturer part number is SMR440, and it is designed for single-pressure encapsulated control applications in industrial equipment.

Where to buy the Supco SMR440 worldwide?

You can source the Supco SMR440 through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Supco components for industrial applications.

How to install the Supco SMR440 high pressure control?

Install the Supco SMR440 by connecting the 1/4 in flare fitting to the system's pressure line. Ensure the electrical circuit is de-energized before wiring the 6V DC rated contacts. Mount the switch in a location accessible for manual reset. Follow standard industrial safety practices and consult the equipment manual for specific pressure settings.

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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