SQUARE A4.79 Thermal Unit, 20 Trip Class
SQUARE Electrical.
SKU 3G-OTH-44041
Also listed as: A479 · A4 79 · A4-79
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 A4.79, is an overload relay heater element used in motor starters to protect motors from overheating due to overcurrent. It is commonly applied in industrial control panels and HVAC equipment to ensure reliable motor protection.
What are the specifications of the Square D A4.79 thermal unit?
The Square D A4.79 thermal unit is a Class 20 trip class overload heater with manufacturer part number A4.79. It is designed for use with Square D motor starters and provides precise thermal protection by matching the motor's full-load current rating.
Where to buy Square D thermal units worldwide?
3G Electric supplies Square D thermal units like the A4.79 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine parts and ensure compliance with international shipping requirements.
How to select the correct Square D thermal unit for a motor?
To select the correct Square D thermal unit, match the unit's trip class and current rating to your motor's full-load amperage and starting characteristics. The A4.79 is a Class 20 unit, suitable for standard motor applications. Always consult the motor nameplate and starter documentation for proper sizing.
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.