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Frequently Asked Questions
What is the SQUARE D B70.0 thermal unit used for?
The SQUARE D B70.0 thermal unit is an overload relay component used in motor starters to protect motors from overheating due to sustained overcurrent. It is designed for industrial electrical panels and motor control centers, ensuring reliable thermal protection in manufacturing, HVAC, and pumping applications.
What are the specifications of the SQUARE D B70.0 thermal unit?
The SQUARE D B70.0 thermal unit has a trip class of 20 and is identified by manufacturer part number B70.0. It is a direct replacement for compatible Square D motor starters. For exact dimensions and current range, consult the product datasheet or contact 3G Electric for technical support.
Where to buy the SQUARE D B70.0 thermal unit worldwide?
3G Electric supplies the SQUARE D B70.0 thermal unit worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact our team for a quote and lead time; we source and deliver this part to any international destination.
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 unit's trip range and ensure the trip class (e.g., 20) suits your starting duty. The B70.0 is a Class 20 unit. Always verify compatibility with your Square D starter model. 3G Electric can assist with cross-referencing specifications.
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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.















