SQUARE D Thermal Unit, Class 20, B17.5
SQUARE Electrical.
SKU 3G-OTH-43648
Also listed as: B175 · B17 5 · B17-5
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, 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 protects motor starters from overload by sensing current and heat. It is used in industrial electrical panels to prevent motor damage in applications like conveyors, pumps, and compressors across machining, HVAC, and material handling systems.
What are the specifications of the Square D B17.5 thermal unit?
The Square D B17.5 thermal unit is a Class 20 trip class overload relay element. It is designed for use with Square D motor starters and has a manufacturer part number B17.5. It provides thermal protection by matching heater current to motor full-load amps.
Where to buy Square D thermal unit B17.5 worldwide?
3G Electric supplies the Square D B17.5 thermal unit worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this genuine Square D part to your facility. Contact us for availability and lead time.
How to select the correct Square D thermal unit for a motor?
Select the Square D thermal unit by matching the motor's full-load current (FLA) to the heater's trip curve. Use the manufacturer's selection table for the B17.5 part number. Ensure the trip class (Class 20) aligns with your motor's starting characteristics and duty cycle.
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.