SQUARE D Thermal Unit A1.63, 20 Trip Class
SQUARE Electrical.
SKU 3G-OTH-39575
Also listed as: A163 · A1 63 · A1-63
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 the SQUARE D Thermal Unit A1.63 used for?
The SQUARE D Thermal Unit A1.63 is an overload protection device used in motor starters and contactors. It protects electric motors from damage due to prolonged overcurrent by tripping the circuit when current exceeds a preset level. Common in industrial automation, HVAC, and pump systems.
What are the specifications of the SQUARE D Thermal Unit A1.63?
The SQUARE D Thermal Unit A1.63 has a trip class of 20 and a manufacturer part number of A1.63. It is designed for use with SQUARE D motor starters and contactors. The trip class indicates the maximum time in seconds to trip at 600% of rated current.
Where to buy SQUARE D Thermal Unit A1.63 worldwide?
You can source the SQUARE D Thermal Unit A1.63 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.
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 unit's ampere rating. The A1.63 is one option; consult the SQUARE D selection table for the proper trip class (e.g., 20) based on motor starting characteristics. Always verify with the motor nameplate.
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3G Electric supplies SQUARE electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.