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MU1-B-92-440-1-A21-B-C The Littelfuse Inc. MU1-B-92-440-1-A21-B-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a panel mount design and a push-to-reset actuator.
Mfr Part #:

MU1-B-92-440-1-A21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-92-440-1-A21-B-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a panel mount design and a push-to-reset actuator.
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MU1-B-92-440-1-A21-B-C Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Voltage Rating
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MU1-B-92-440-1-A21-B-C Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-92-440-1-A21-B-C is a single-pole circuit breaker designed for panel mounting. It operates with a current rating of 4A and a voltage rating of 250V.

 

The breaker type is magnetic with a hydraulic delay, and it features a push-to-reset actuator. It is approved by CCC, CSA, and UL1077.

 

This component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1. It is unaffected by REACH regulations.

MU1-B-92-440-1-A21-B-C Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse Inc. MU1-B-92-440-1-A21-B-C Circuit Breaker

MU1-B-92-440-1-A21-B-C Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MU1-B-92-440-1-A21-B-C Features

  • 4A current rating and 250V voltage rating.
  • Magnetic hydraulic delay breaker type.
  • Panel mount with push-to-reset actuator.
  • Approved by CCC, CSA, and UL1077.
  • RoHS3 compliant and MSL 1.

MU1-B-92-440-1-A21-B-C Applications

  • Suitable for general circuit protection.
  • Ideal for panel-mounted applications.
  • Used in systems requiring hydraulic delay.
  • Compliant with major safety standards.

MU1-B-92-440-1-A21-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MU1-B-92-440-1-A21-B-C circuit breaker?

The current rating is 4A.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

How is the MU1-B-92-440-1-A21-B-C circuit breaker mounted?

It is designed for panel mounting.

What type of actuator does this circuit breaker use?

It uses a push-to-reset actuator.

Which approval agencies have certified this circuit breaker?

It is approved by CCC, CSA, and UL1077.

Is this circuit breaker RoHS compliant?

Yes, it is RoHS3 compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1.

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