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Supco Temperature Limit Controller: Open on Rise, SPST, 290°F Opening, Manual Reset - Surface Mount Limit Controls
SupcoSurface Mount Limit Controls

Supco Temperature Limit Controller: Open on Rise, SPST, 290°F Opening, Manual Reset

The SUPCO SHM290 is a surface-mount temperature limit controller that opens on rise, featuring a single-pole single-throw (SPST) manual reset switch with a 290°F opening temperature and 240V AC rating. This device is…

SKU 3G-OTH-69922

Also listed as: SHM 290 · SHM-290

Brand
Supco
Item
Temperature Limit Controller: Open on Rise, SPST, 290°F Opening, Manual Reset
Category
Surface Mount 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
SHM290
Type
SPST, Manual Reset
AC
240V
Opening
290°F

Technical Documents

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

Product Description

The SUPCO SHM290 is a surface-mount temperature limit controller that opens on rise, featuring a single-pole single-throw (SPST) manual reset switch with a 290°F opening temperature and 240V AC rating. This device is designed to interrupt the circuit when the sensed temperature exceeds the set point, requiring manual intervention to reset after a trip.

Frequently Asked Questions

What is a Supco SHM290 temperature limit controller used for?

The Supco SHM290 is a surface-mount limit control that opens on temperature rise at 290°F. It is used in HVAC, refrigeration, and industrial heating systems to shut down equipment if overheating occurs, protecting components and preventing fire hazards.

What are the specifications of the Supco SHM290 temperature limit controller?

The Supco SHM290 is a SPST, manual reset limit controller rated for 240V AC. It opens on rise at 290°F. The surface-mount design allows direct attachment to pipes or ducts. Manual reset ensures the system stays off until the fault is cleared.

Where to buy a Supco SHM290 temperature limit controller worldwide?

3G Electric supplies the Supco SHM290 temperature limit controller to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this manual reset, 290°F opening limit control.

How to install a Supco SHM290 manual reset limit controller?

Mount the Supco SHM290 securely to a clean, flat surface using the provided bracket. Connect the SPST switch in series with the load circuit rated for 240V AC. After a trip, press the manual reset button only after the system temperature drops below 290°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 surface mount 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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