Supco Limit Thermostat: Open on Rise, SPST, 150°F Closing, 190°F Opening, Auto Reset
The SUPCO Limit Thermostat (Open on Rise) is a plenum limit control with SPST, Auto Reset configuration. It opens at 190°F and closes at 150°F, rated for 120V AC/240V AC (MPN SHL503).
SKU 3G-OTH-67363
Also listed as: SHL 503 · SHL-503
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
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Product Description
The SUPCO Limit Thermostat (Open on Rise) is a plenum limit control with SPST, Auto Reset configuration. It opens at 190°F and closes at 150°F, rated for 120V AC/240V AC (MPN SHL503).
Frequently Asked Questions
What is the Supco SHL503 limit thermostat used for?
The Supco SHL503 limit thermostat is used in HVAC plenum applications to prevent overheating. It opens on rise at 190°F and closes at 150°F, automatically resetting to protect equipment. Common in furnaces and air handlers, it ensures safe operation by interrupting power when temperatures exceed safe limits.
What are the specifications of the Supco SHL503 limit thermostat?
The Supco SHL503 is a SPST, auto-reset limit thermostat with an opening temperature of 190°F and closing at 150°F. It operates on 120V AC/240V AC. This plenum limit control is designed for reliable over-temperature protection in HVAC systems. The manufacturer part number is SHL503.
Where to buy the Supco SHL503 limit thermostat worldwide?
You can source the Supco SHL503 limit thermostat through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable supply for this Supco plenum limit control.
How to install the Supco SHL503 limit thermostat?
Install the Supco SHL503 by mounting it securely in the plenum or duct where it senses air temperature. Ensure proper electrical connections for 120V AC or 240V AC as per local codes. The auto-reset feature means it will close the circuit once temperature drops to 150°F. Always disconnect power before installation and follow Supco guidelines.
Used in
Common applications for SupcoSupco 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.
