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SQUARE D B32.0 Class 20 Thermal Unit Overload Relay Heater Element - Electrical
SQUAREElectrical

SQUARE D B32.0 Class 20 Thermal Unit Overload Relay Heater Element

SQUARE Electrical.

SKU 3G-OTH-41231

Also listed as: B320 · B32 0 · B32-0

Brand
SQUARE
Item
D B32.0 Class 20 Thermal Unit Overload Relay Heater Element
Part Number
B32.0
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Also known as:B32.0SQUARE
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Technical Specifications

SQUARE
Manufacturer Part Number
B32.0

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

Product Description

SQUARE Electrical.

Frequently Asked Questions

What is a SQUARE D B32.0 thermal unit used for?

The SQUARE D B32.0 thermal unit is a Class 20 overload relay heater element used in motor starters to protect motors from overcurrent damage. It is commonly applied in industrial motor control panels, conveyors, pumps, and HVAC equipment where reliable thermal protection is required.

What are the specifications of the SQUARE D B32.0 thermal unit?

The SQUARE D B32.0 thermal unit has a manufacturer part number B32.0 and is a Class 20 trip class heater element. It is designed for use with SQUARE D motor starters and provides accurate thermal overload protection. For exact ampere ratings and application details, consult the SQUARE D selection guide.

Where to buy SQUARE D B32.0 thermal units worldwide?

3G Electric supplies the SQUARE D B32.0 thermal unit to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this genuine SQUARE D overload heater element.

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 (FLA) to the heater element's ampere range. The B32.0 is a Class 20 trip class unit suitable for standard motor starting. Always verify compatibility with your SQUARE D starter model and consult the manufacturer's selection table for precise sizing.

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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