We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SQUARE D Thermal Unit: 20 Trip Class, B1.03 - Electrical
SQUAREElectrical

SQUARE D Thermal Unit: 20 Trip Class, B1.03

SQUARE Electrical.

SKU 3G-OTH-39092

Also listed as: B103 · B1 03 · B1-03

Brand
SQUARE
Item
D Thermal Unit: 20 Trip Class, B1.03
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

SQUARE
Manufacturer Part Number
B1.03

Technical Documents

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

Product Description

SQUARE Electrical.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SQUARE D Thermal Unit B1.03 used for?

The SQUARE D Thermal Unit B1.03 is an overload protection device used in motor starters and contactors. It protects electric 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 B1.03?

The SQUARE D Thermal Unit B1.03 has a trip class of 20 and a manufacturer part number of B1.03. It is designed for use with SQUARE D motor starters and contactors. The trip class indicates the maximum time in seconds the unit will allow a locked-rotor current to flow before tripping.

Where to buy SQUARE D Thermal Unit B1.03 worldwide?

You can source the SQUARE D Thermal Unit B1.03 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact our team for pricing and lead time on this part.

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

To select the correct SQUARE D thermal unit, match the motor's full-load current (FLC) to the unit's ampere rating range. The B1.03 is a specific model; consult the SQUARE D selection chart or motor nameplate. Ensure the trip class (e.g., 20) aligns with the motor's starting characteristics and application requirements.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

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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