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MU1-B-32-450-1-A21-B-E The Littelfuse Inc. MU1-B-32-450-1-A21-B-E is a magnetic hydraulic delay circuit breaker. It features a 5A current rating and a 250V AC voltage rating.
Mfr Part #:

MU1-B-32-450-1-A21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-32-450-1-A21-B-E is a magnetic hydraulic delay circuit breaker. It features a 5A current rating and a 250V AC voltage rating.
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MU1-B-32-450-1-A21-B-E 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
SVHC Present
Voltage Rating
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MU1-B-32-450-1-A21-B-E Description

Short technical summary and product information.

The Littelfuse Inc. MU1-B-32-450-1-A21-B-E is a single-pole circuit breaker designed for circuit protection. It utilizes a magnetic (hydraulic delay) mechanism for reliable operation.

 

Key electrical specifications include a current rating of 5A and a voltage rating of 250V AC. A DC voltage rating of 80V is also specified. The breaker is designed for panel mounting and features a push-to-reset actuator.

 

This circuit breaker is approved by CCC, CSA, TUV, and UL agencies. It has no illumination and is RoHS3 compliant, with an MSL of 1 and REACH unaffected status.

MU1-B-32-450-1-A21-B-E Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: MU1-B-32-450-1-A21-B-E Circuit Breaker
Subcategory: Circuit Breaker

MU1-B-32-450-1-A21-B-E Compliance

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

MU1-B-32-450-1-A21-B-E Features

  • 5A current rating for circuit protection.
  • 250V AC and 80V DC voltage ratings.
  • Magnetic hydraulic delay breaker type.
  • Panel mount with push-to-reset actuator.
  • Approved by CCC, CSA, TUV, and UL.

MU1-B-32-450-1-A21-B-E Applications

  • Protects electrical circuits from overloads.
  • Suitable for panel-mounted applications.
  • Used in systems requiring reliable tripping.
  • Designed for push-to-reset operation.

MU1-B-32-450-1-A21-B-E FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the MU1-B-32-450-1-A21-B-E?

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

What is the current rating?

The current rating is 5A.

What type of circuit breaker is this?

This is a magnetic (hydraulic delay) circuit breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What type of actuator does this breaker have?

The actuator is push to reset.

How is this circuit breaker mounted?

It is panel mounted.

Does this circuit breaker have illumination?

No, it has no illumination.

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