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MU1-B-64-450-1-A21-B-D The Littelfuse Inc. MU1-B-64-450-1-A21-B-D 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-64-450-1-A21-B-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-64-450-1-A21-B-D 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-64-450-1-A21-B-D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Current Rating (Amps)
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MU1-B-64-450-1-A21-B-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number MU1-B-64-450-1-A21-B-D, is designed for reliable circuit protection. It has a current rating of 5A and a voltage rating of 250V.

 

The breaker type is magnetic with a hydraulic delay, offering specific trip characteristics. It is a single-pole unit with a push-to-reset actuator for easy operation.

 

Designed for panel mounting, this circuit breaker is suitable for various industrial and commercial applications where robust protection is required. It is RoHS3 compliant, with MSL 1 and REACH unaffected status.

 

Key specifications include a 5A current rating, 250V voltage rating, and a magnetic hydraulic delay mechanism. The mounting type is panel mount, and the actuator is a push-to-reset button.

MU1-B-64-450-1-A21-B-D Quick Information

Product Type: Circuit Breaker
Series: MU1
Canonical Name: Littelfuse Inc. MU1-B-64-450-1-A21-B-D Circuit Breaker

MU1-B-64-450-1-A21-B-D Compliance

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

MU1-B-64-450-1-A21-B-D Features

  • 5A current rating for circuit protection.
  • 250V voltage rating for power systems.
  • Magnetic hydraulic delay breaker type.
  • Panel mount design for easy installation.
  • Push-to-reset actuator for operation.

MU1-B-64-450-1-A21-B-D Applications

  • Used in industrial control panels.
  • Suitable for power distribution units.
  • Applicable in equipment protection circuits.
  • Ideal for systems needing specific delays.

MU1-B-64-450-1-A21-B-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MU1-B-64-450-1-A21-B-D circuit breaker?

The current rating is 5A.

What is the voltage rating for this Littelfuse circuit breaker?

The voltage rating is 250V.

What type of breaker mechanism does the MU1-B-64-450-1-A21-B-D use?

It uses a magnetic (hydraulic delay) breaker type.

How many poles does this circuit breaker have?

This is a 1-pole circuit breaker.

What is the actuator type for this circuit breaker?

The actuator type is push to reset.

What is the mounting type for the MU1-B-64-450-1-A21-B-D?

The mounting type is panel mount.

Is this circuit breaker RoHS compliant?

Yes, it is RoHS3 compliant.

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