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MU2-B-34-440-1-A21-B-C The Carling Technologies MU2-B-34-440-1-A21-B-C is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a push-to-reset actuator.
Mfr Part #:

MU2-B-34-440-1-A21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Carling Technologies MU2-B-34-440-1-A21-B-C is a 2-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a push-to-reset actuator.
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MU2-B-34-440-1-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 (Amps)
Failure Rate
Illumination
Mounting Type
Number of Poles
Voltage Rating
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MU2-B-34-440-1-A21-B-C Description

Short technical summary and product information.

This Carling Technologies MU2-B-34-440-1-A21-B-C is a 2-pole circuit breaker with a current rating of 4A and an AC voltage rating of 250V. It utilizes a magnetic (hydraulic delay) breaker type for reliable operation.

 

The breaker is designed for panel mounting and features a push-to-reset actuator for easy operation. It has received approvals from CCC, CSA, and UL1077, indicating its compliance with various safety standards.

 

Additional specifications include a DC voltage rating of 80V and it belongs to the Series M. The component is supplied in bulk packaging.

MU2-B-34-440-1-A21-B-C Quick Information

Product Type: Circuit Breaker
Series: MU2-B
Canonical Name: Carling Technologies MU2-B-34-440-1-A21-B-C Circuit Breaker
Subcategory: Circuit Breakers

MU2-B-34-440-1-A21-B-C Compliance

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

MU2-B-34-440-1-A21-B-C Features

  • 2-pole magnetic hydraulic delay circuit breaker.
  • Rated for 4A current and 250V AC.
  • Panel mount with push-to-reset actuator.
  • CCC, CSA, and UL1077 approved.
  • Series M breaker for protection.

MU2-B-34-440-1-A21-B-C Applications

  • Provides overcurrent protection.
  • Suitable for panel installations.
  • Used in systems requiring safety approvals.
  • Designed for reliable circuit interruption.

MU2-B-34-440-1-A21-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What voltage ratings does this circuit breaker support?

This circuit breaker is rated for 250V AC and 80V DC.

What is the current rating?

The continuous current rating is 4A.

How many poles does this breaker have?

It is a 2-pole circuit breaker.

What type of actuation mechanism is used?

It features a push-to-reset actuator.

What is the mounting type and packaging?

It is panel mount and supplied in bulk packaging.

What is the breaker technology?

It uses a magnetic (hydraulic delay) mechanism.

Which safety certifications are held?

This breaker is approved by CCC, CSA, and UL1077.

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