SQUARE D B1.45 Thermal Unit, Trip Class 20
SQUARE Electrical.
SKU 3G-OTH-40008
Also listed as: B145 · B1 45 · B1-45
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.
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Product Description
SQUARE Electrical.
Frequently Asked Questions
What is a SQUARE D B1.45 thermal unit used for?
The SQUARE D B1.45 thermal unit is a trip class 20 overload relay heater element used in motor starters to protect motors from overcurrent and phase loss. It is commonly applied in industrial control panels, conveyors, pumps, and HVAC equipment across manufacturing and process industries.
What are the specifications of the SQUARE D B1.45 thermal unit?
The SQUARE D B1.45 thermal unit has manufacturer part number B1.45 and is rated for trip class 20, providing delayed tripping for motor starting. It is designed for use with SQUARE D motor starters and overload relays. Always verify compatibility with your specific starter model before ordering.
Where to buy SQUARE D B1.45 thermal units worldwide?
3G Electric supplies the SQUARE D B1.45 thermal unit to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other SQUARE D motor protection components.
How to select the correct SQUARE D thermal unit for a motor?
Select the SQUARE D thermal unit by matching the motor full-load current (FLC) to the heater element's ampere range, which is printed on the unit. Use the motor nameplate FLC and the SQUARE D selection table for your starter model. The B1.45 is a trip class 20 element for standard motor starting applications.
Used in
Common applications for SQUARESQUARE 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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- Dayton This Dayton unit heater is designed for wall or ceiling mounting in commercial or industrial spaces such as warehouses, workshops, and garages. It operates on 208 V AC, 1 or 3-Phase power and measures 21-3/4 in x 19 in x 8-1/2 in (H x W x D). The heater provides directed warm air circulation for supplemental or primary electric heating
- Dayton This Dayton unit heater is designed for wall or ceiling mounting in commercial and industrial spaces such as warehouses, workshops, and garages. It operates on 277 V AC, 1-Phase power and measures 16 in x 14 in x 8-1/2 in. Suitable for supplemental or primary heating where central HVAC is impractical