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3G Electric
SQUARE D Thermal Unit, 20 Trip Class, A25.2 - Electrical
SQUAREElectrical

SQUARE D Thermal Unit, 20 Trip Class, A25.2

SQUARE Electrical.

SKU 3G-OTH-42006

Also listed as: A252 · A25 2 · A25-2

Brand
SQUARE
Item
D Thermal Unit, 20 Trip Class, A25.2
Part Number
A25.2
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Also known as:A25.2SQUARE
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Technical Specifications

SQUARE
Manufacturer Part Number
A25.2

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SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

SQUARE Electrical.

Frequently Asked Questions

What is the SQUARE D Thermal Unit A25.2 used for?

The SQUARE D Thermal Unit A25.2 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 excessive heat is detected. Common applications include industrial machinery, HVAC systems, and conveyor drives.

What are the specifications of the SQUARE D Thermal Unit A25.2?

The SQUARE D Thermal Unit A25.2 has a trip class of 20 and is designed for use with SQUARE D motor starters. The manufacturer part number is A25.2. It provides thermal overload protection by responding to heat buildup in the motor circuit, ensuring reliable operation under normal load conditions.

Where to buy SQUARE D Thermal Unit A25.2 worldwide?

You can source the SQUARE D Thermal Unit A25.2 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 industrial applications.

How to select the correct SQUARE D thermal unit for a motor starter?

To select the correct SQUARE D thermal unit, match the trip class (e.g., 20) to the motor's starting characteristics and verify the unit's part number (e.g., A25.2) against the starter model. Consult the motor's full-load current rating and ambient temperature. Always follow the manufacturer's selection tables for proper overload protection.

Used in

Common applications for SQUARE
Commercial building lighting control — Square D 8903LO60V04 (6-pole, 30 A, 277V AC coil) for switching large-area lighting in offices and retail spaces.
Warehouse lighting — Square D 8903LO1000V02 (10-pole, 30 A, 120V AC coil) for centralized control of high-bay lighting circuits.
Parking lot lighting — Square D 8903SPO2V04 (3-pole, 60 A, 277V AC coil) for remote switching of exterior lighting groups.
Manufacturing facility lighting — Square D 8903LO1200V02 (12-pole, 30 A, 120V AC coil) for multi-circuit lighting control in production areas.
Industrial facility lighting — Square D 8903SMO2V02 (3-pole, 30 A, 120V AC coil) for switching lighting in small zones or individual rooms.
Large-scale lighting systems — Square D 8903LO80V02 (8-pole, 30 A, 120V AC coil) for controlling multiple lighting circuits from a single point.
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SQUARE 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.

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