SQUARE B6.25 Thermal Unit, Class 20
SQUARE Electrical.
SKU 3G-OTH-39278
Also listed as: B625 · B6 25 · B6-25
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
SQUARE Electrical.
Frequently Asked Questions
What is a SQUARE D B6.25 thermal unit used for?
The SQUARE D B6.25 thermal unit is a Class 20 overload relay heater element used in motor starters to protect motors from sustained overcurrent. It is selected based on motor full-load current and ambient conditions, ensuring reliable thermal protection in industrial electrical panels.
What are the specifications of the SQUARE D B6.25 thermal unit?
The SQUARE D B6.25 thermal unit is a Class 20 trip class heater element with manufacturer part number B6.25. It is designed for use with SQUARE D motor starters and provides overload protection by heating a bimetal strip that trips the contactor when current exceeds the rated threshold.
Where to buy SQUARE D B6.25 thermal units worldwide?
3G Electric supplies the SQUARE D B6.25 thermal unit to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this overload heater element.
How to select the correct SQUARE D thermal unit for a motor?
Select the SQUARE D thermal unit by matching the motor nameplate full-load current to the heater element's trip curve. The B6.25 is a Class 20 unit; verify ambient temperature and enclosure type. Always consult the motor starter manual for proper heater selection to avoid nuisance tripping or inadequate protection.
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.