SQUARE D Thermal Unit: 20 Trip Class, B2.40
SQUARE Electrical.
SKU 3G-OTH-41423
Also listed as: B240 · B2 40 · B2-40
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
SQUARE Electrical.
Frequently Asked Questions
What is the SQUARE D B2.40 thermal unit used for?
The SQUARE D B2.40 thermal unit is an overload relay heater element designed for motor protection in industrial electrical panels. It trips when current exceeds the rated threshold, preventing motor damage from overheating. Common applications include conveyors, pumps, and HVAC systems where reliable thermal overload protection is required.
What are the specifications of the SQUARE D B2.40 thermal unit?
The SQUARE D B2.40 thermal unit has a trip class of 20 and is identified by manufacturer part number B2.40. It is a direct replacement for Square D overload relays requiring this specific heater element. The unit is designed for use in motor starters and contactors to provide accurate thermal protection.
Where to buy SQUARE D B2.40 thermal units worldwide?
3G Electric supplies the SQUARE D B2.40 thermal unit to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this thermal unit.
How to select the correct SQUARE D thermal unit for a motor?
To select the correct SQUARE D thermal unit, match the motor full-load current (FLC) to the heater element's trip range. The B2.40 is a 20 trip class unit, suitable for standard motor starting applications. Always consult the motor nameplate and Square D selection tables to ensure proper overload protection without nuisance tripping.
Used in
Common applications for SQUARESQUARE Products
3G Electric supplies SQUARE electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
