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3G Electric
SQUARE D Thermal Unit B3.00, 20 Trip Class - Electrical
SQUAREElectrical

SQUARE D Thermal Unit B3.00, 20 Trip Class

SQUARE Electrical.

SKU 3G-OTH-40625

Also listed as: B300 · B3 00 · B3-00

Brand
SQUARE
Item
D Thermal Unit B3.00, 20 Trip Class
Part Number
B3.00
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Also known as:B3.00SQUARE
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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
B3.00

Technical Documents

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

Product Description

SQUARE Electrical.

Frequently Asked Questions

What is a SQUARE D Thermal Unit B3.00 used for?

The SQUARE D Thermal Unit B3.00 is a 20 Trip Class overload relay heater element used in motor starters to protect motors from sustained overcurrent. It is commonly applied in industrial motor control panels, conveyors, pumps, and HVAC equipment where precise thermal protection is required.

What are the specifications of the SQUARE D Thermal Unit B3.00?

The SQUARE D Thermal Unit B3.00 has manufacturer part number B3.00 and is rated for 20 Trip Class operation. It is designed for use with SQUARE D motor starters and overload relays to provide thermal protection. Always verify compatibility with your specific starter model before installation.

Where to buy SQUARE D Thermal Unit B3.00 worldwide?

3G Electric supplies the SQUARE D Thermal Unit B3.00 to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this part.

How to install a SQUARE D Thermal Unit B3.00?

To install the SQUARE D Thermal Unit B3.00, first disconnect all power to the motor starter. Remove the existing thermal unit by pressing the release tab and sliding it out. Insert the new B3.00 unit into the correct slot until it clicks securely. Reconnect power and verify trip settings per motor nameplate.

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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