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3G Electric
SQUARE D Thermal Unit, Trip Class 20, A1.75 - Electrical
SQUAREElectrical

SQUARE D Thermal Unit, Trip Class 20, A1.75

SQUARE Electrical.

SKU 3G-OTH-41777

Also listed as: A175 · A1 75 · A1-75

Brand
SQUARE
Item
D Thermal Unit, Trip Class 20, A1.75
Part Number
A1.75
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Also known as:A1.75SQUARE
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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.

Technical Specifications

SQUARE
Manufacturer Part Number
A1.75

Technical Documents

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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 A1.75 used for?

The SQUARE D Thermal Unit A1.75 is used as an overload protection device in motor starters and controllers. It protects motors from damage due to prolonged overcurrent conditions by tripping the circuit when excessive heat is detected. Common applications include industrial machinery, pumps, conveyors, and HVAC systems.

What are the specifications of the SQUARE D Thermal Unit A1.75?

The SQUARE D Thermal Unit A1.75 has a trip class of 20 and is designated by manufacturer part number A1.75. It is designed for use with SQUARE D motor starters and provides reliable thermal overload protection. For exact electrical ratings and compatibility, consult the SQUARE D technical documentation.

Where to buy SQUARE D Thermal Unit A1.75 worldwide?

You can source the SQUARE D Thermal Unit A1.75 worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact our team for pricing and lead time on this component.

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

To select the correct SQUARE D thermal unit, match the motor full-load current (FLC) to the thermal unit's ampere rating range. The trip class (e.g., 20) indicates the maximum time in seconds the unit can carry six times its rated current before tripping. Always consult the SQUARE D selection table for the proper A1.75 or equivalent part.

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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