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Schneider Electric B3.70

Name: Thermal Unit, Type S, Type B, melting alloy, Class 20
Brand: Schneider Electric
SKU: B3.70

Thermal Unit, Type S, Type B, melting alloy, Class 20

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Product Description

Lifecycle Status:

Thermal units are intended to protect motors, controllers, and branch-circuit conductors against excessive heating due to prolonged motor over-currents up to and including locked rotor currents. Protection of the motor and the other branch circuit components from higher currents, due to short circuits or grounds, is a function of the branch circuit fuses or circuit breakers. Class 20 thermal units respond to overload current conditions according to trip curves. These thermal units will trip in 20 seconds or less on overload conditions. These thermal units have a one piece construction. The motor current passes through a small heater winding within these thermal units. Under overload conditions, the heat causes a special solder to melt allowing a ratchet wheel to spin free thus opening the control circuit contacts and opening the motor contacts. AIC Rating in accordance with UL512 is 100,000 Amp. This fuse holder is UL component recognized and CSA certified.

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Call us at:+48 17 778 34 19

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Offer details

Offer from:: Trusted supplier — Romania, member since 2023, 1–4 employees
Availability:: On requestLead time: 21 days
Warranty:: Not specified
Condition:: New Surplus

New Surplus - A new, unused, undamaged item without a manufacturer guarantee. The item may come without original packaging or in replacement packaging. If provided, the box may have been opened.

The Seller is responsible for shipping the product and invoicing

Specifications

Brand: Schneider Electric
Thermal Overload Type: melting alloy
Range Of Product: B
Motor Tripping Class: 20
China Rohs Regulation: Product out of China RoHS scope. Substance declaration for your information.
Pvc Free: Yes
Eu Rohs Directive: Not applicable, out of EU RoHS legal scope

Available Offers

(2)

	Condition	Availability	Supplier	Warranty	Action
	Condition New Surplus	Availability On requestLead time: 21 days	Supplier RomaniaTrusted supplier — member since 2023, 1–4 employees	Warranty Not specified
	Condition New Factory Sealed	Availability On requestLead time to be confirmed	Supplier ItalyTrusted supplier — member since 2021, 10–19 employees	Warranty 12 months

Offer with manufacturer lead time

Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.

Documents

Data Sheet

Datasheet for Schneider Electric B3.70, including specifications and features.

Download Data Sheet

CAD Models

3D CAD model and technical drawings, ready for your design software.

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Product data updated: 22-08-2026

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