SQUARE D Thermal Unit: 20 Trip Class, A.78
SQUARE Electrical.
SKU 3G-OTH-42195
Also listed as: A78 · A 78 · A-78
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 Thermal Unit A.78 used for?
The SQUARE D Thermal Unit A.78 is an overload protection device for motor starters. It protects motors from overheating by tripping the circuit when current exceeds a safe level. Common in industrial automation, HVAC, and pump systems, it ensures equipment longevity and safety in continuous-duty applications.
What are the specifications of the SQUARE D Thermal Unit A.78?
The SQUARE D Thermal Unit A.78 has a trip class of 20 and a manufacturer part number A.78. It is designed for use with SQUARE D motor starters and overload relays. The unit provides precise thermal protection based on motor current and ambient temperature, ensuring reliable operation in industrial environments.
Where to buy SQUARE D Thermal Unit A.78 worldwide?
You can source the SQUARE D Thermal Unit A.78 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine SQUARE D components for your motor protection needs.
How to select the correct SQUARE D Thermal Unit for a motor?
Select the SQUARE D Thermal Unit by matching the motor full-load current (FLC) to the unit's trip range. The A.78 is a 20 trip class unit, suitable for standard motor starting. Consult the motor nameplate and SQUARE D selection tables to ensure proper overload protection. Always verify ambient temperature compensation for accurate performance.
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.
