MU1-B-34-620-1-A21-B-4 The Littelfuse Inc. MU1-B-34-620-1-A21-B-4 is a single-pole circuit breaker designed for panel mounting. It features a push-to-reset actuator and a magnetic hydraulic delay mechanism.
Mfr Part #:

MU1-B-34-620-1-A21-B-4

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-34-620-1-A21-B-4 is a single-pole circuit breaker designed for panel mounting. It features a push-to-reset actuator and a magnetic hydraulic delay mechanism.
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MU1-B-34-620-1-A21-B-4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
Voltage Rating

MU1-B-34-620-1-A21-B-4 Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-34-620-1-A21-B-4 is a single-pole circuit breaker with a current rating of 20A and a voltage rating of 250V. It utilizes a magnetic hydraulic delay for its tripping mechanism, providing reliable overcurrent protection.

 

The breaker is designed for panel mounting, making it suitable for integration into various electrical enclosures and control panels. Its actuator type is push-to-reset, allowing for easy manual reset after a trip event.

 

Key electrical specifications include a 20A current rating and a 250V voltage rating. The breaker type is magnetic with a hydraulic delay, and it features a single pole configuration. The mounting type is panel mount, and the actuator is a push-to-reset button.

 

This component is suitable for applications requiring robust circuit protection where manual reset and clear indication of trip status are necessary. Its specifications make it a versatile choice for industrial, commercial, and some consumer electronics applications.

MU1-B-34-620-1-A21-B-4 Quick Information

Product Type: Circuit Breaker
Series: MU1
Canonical Name: Littelfuse Inc. MU1-B-34-620-1-A21-B-4 Circuit Breaker
Subcategory: Circuit Breaker

MU1-B-34-620-1-A21-B-4 Compliance

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

MU1-B-34-620-1-A21-B-4 Features

  • 20A current rating for protection.
  • 250V voltage rating for versatility.
  • Panel mount for easy integration.
  • Push-to-reset actuator for manual control.
  • Magnetic hydraulic delay mechanism.

MU1-B-34-620-1-A21-B-4 Applications

  • Suitable for control panel integration.
  • Used in electrical equipment protection.
  • Ideal for overcurrent safety circuits.
  • Provides manual reset functionality.

MU1-B-34-620-1-A21-B-4 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the MU1-B-34-620-1-A21-B-4 circuit breaker?

The current rating is 20A.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

How is the MU1-B-34-620-1-A21-B-4 circuit breaker mounted?

It is designed for panel mounting.

What type of actuator does this circuit breaker have?

It features a push-to-reset actuator.

What is the breaker type and delay mechanism?

The breaker type is magnetic with a hydraulic delay.

How many poles does this circuit breaker have?

This is a single-pole circuit breaker.

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MU1-B-30-620-1-A21-B-C
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Littelfuse MU1-B-30-620-1-A21-B-C is a 1-pole magnetic circuit breaker with hydraulic delay, rated 20A at 250V. It features panel mount and push-to-reset actuation.
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The Littelfuse Inc. MU1-B-32-620-1-A21-B-E is a circuit breaker. It features a 20A current rating and a 250V voltage rating.
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