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Schneider Electric B5.50

Name: Thermal Unit, Type S, Type B, melting alloy, Class 20
Brand: Schneider Electric
SKU: B5.50

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.

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Offer details

Offer from:: Trusted supplier — United Kingdom, member since 2026, 20–49 employees
Availability:: 2 pcs.
In-Stock
Updated at: 07-11-2025
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 2 pcs. In-Stock Updated at: 07-11-2025	Supplier United KingdomTrusted supplier — member since 2026, 20–49 employees	Warranty Not specified
	Condition Refurbished	Availability 5 pcs. In-Stock Updated at: 07-11-2025	Supplier United KingdomTrusted supplier — member since 2026, 20–49 employees	Warranty Not specified

Documents

Data Sheet

Datasheet for Schneider Electric B5.50, including specifications and features.

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CAD Models

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

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Product data updated: 07-11-2025

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