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3G Electric
SQUARE D Thermal Unit B4.15, 20 Trip Class - Electrical
SQUAREElectrical

SQUARE D Thermal Unit B4.15, 20 Trip Class

SQUARE Electrical.

SKU 3G-OTH-43276

Also listed as: B415 · B4 15 · B4-15

Brand
SQUARE
Item
D Thermal Unit B4.15, 20 Trip Class
Part Number
B4.15
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Also known as:B4.15SQUARE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

SQUARE
Manufacturer Part Number
B4.15

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 B4.15 used for?

The SQUARE D Thermal Unit B4.15 is an overload protection device used in motor starters and contactors. It protects motors from overheating by tripping the circuit when current exceeds a safe level. Common in industrial automation, HVAC, and pump systems, it ensures equipment longevity and safety.

What are the specifications of the SQUARE D Thermal Unit B4.15?

The SQUARE D Thermal Unit B4.15 has a 20 Trip Class and manufacturer part number B4.15. It is designed for use with SQUARE D motor starters. The trip class indicates the time delay before tripping under overload conditions, providing precise thermal protection for motors.

Where to buy SQUARE D Thermal Unit B4.15 worldwide?

You can source the SQUARE D Thermal Unit B4.15 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.

How to select the correct SQUARE D Thermal Unit for a motor?

To select the correct SQUARE D Thermal Unit, match the trip class and part number to your motor's full-load current and starter model. The B4.15 is a 20 Trip Class unit. Always consult the motor nameplate and starter documentation. For assistance, contact 3G Electric for sourcing guidance.

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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