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Supco Plenum Thermostat: Open on Rise, SPST, 180°F Closing, 220°F Opening, Auto Reset - Plenum Limit Controls
SupcoPlenum Limit Controls

Supco Plenum Thermostat: Open on Rise, SPST, 180°F Closing, 220°F Opening, Auto Reset

The SUPCO Plenum Thermostat: Open on Rise is a plenum limit control with SPST, auto reset operation. It features a closing temperature of 180°F and an opening temperature of 220°F, rated for 120V AC/240V AC (MPN SHL517).

SKU 3G-OTH-67422

Also listed as: SHL 517 · SHL-517

Brand
Supco
Item
Plenum Thermostat: Open on Rise, SPST, 180°F Closing, 220°F Opening, Auto Reset
Category
Plenum Limit Controls
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Supco
Manufacturer Part Number
SHL517
Type
SPST, Auto Reset
Closing
180°F
Opening
220°F
AC/240V AC
120V

Technical Documents

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

Product Description

The SUPCO Plenum Thermostat: Open on Rise is a plenum limit control with SPST, auto reset operation. It features a closing temperature of 180°F and an opening temperature of 220°F, rated for 120V AC/240V AC (MPN SHL517).

Frequently Asked Questions

What is the Supco SHL517 plenum thermostat used for?

The Supco SHL517 is a plenum limit control used in HVAC systems to monitor air temperature in the supply plenum. It opens on rise at 220°F and closes at 180°F, preventing overheating by disconnecting power to the equipment. It is suitable for 120V AC or 240V AC circuits.

What are the specifications of the Supco SHL517 plenum thermostat?

The Supco SHL517 is a SPST, open-on-rise thermostat with a 180°F closing temperature and 220°F opening temperature. It features auto reset and is rated for 120V AC or 240V AC. The manufacturer part number is SHL517, and it is a plenum limit control from SUPCO.

Where to buy the Supco SHL517 plenum thermostat worldwide?

You can source the Supco SHL517 plenum thermostat through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this SUPCO plenum limit control.

How to install the Supco SHL517 plenum thermostat?

Install the Supco SHL517 by mounting it in the supply plenum of the HVAC system, ensuring proper airflow across the sensing element. Wire it in series with the control circuit per the manufacturer's diagram. The auto-reset feature means it will re-close when temperature drops to 180°F.

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 plenum limit controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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