SQUARE D Thermal Unit: 20 Trip Class, B28.0
SQUARE Electrical.
SKU 3G-OTH-42055
Also listed as: B280 · B28 0 · B28-0
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.
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Product Description
SQUARE Electrical.
Frequently Asked Questions
What is a Square D thermal unit used for?
A Square D thermal unit, like the B28.0, protects motors and electrical equipment from overload by tripping the circuit when current exceeds a safe level. It is commonly used in industrial control panels, motor starters, and HVAC systems to prevent damage from sustained overcurrent.
What are the specifications of the Square D B28.0 thermal unit?
The Square D B28.0 thermal unit is a Class 20 trip device with a manufacturer part number B28.0. It is designed for use with Square D motor starters and provides overload protection by responding to heat generated by current flow. Always verify compatibility with your specific starter model.
Where to buy Square D thermal units worldwide?
3G Electric supplies Square D thermal units like the B28.0 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this part.
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 (FLA) to the unit's trip range. The B28.0 is a Class 20 unit, suitable for standard motor starting. Consult the motor nameplate and Square D selection tables to ensure proper overload protection and avoid 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.
