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MU2-B-64-445-1-A21-B-C Magnetic hydraulic delay circuit breaker from Littelfuse rated 4.5A at 250V with 2 poles. Features a panel-mount push-to-reset actuator and UL1077, CSA, CCC approvals.
Mfr Part #:

MU2-B-64-445-1-A21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Magnetic hydraulic delay circuit breaker from Littelfuse rated 4.5A at 250V with 2 poles. Features a panel-mount push-to-reset actuator and UL1077, CSA, CCC approvals.
Stock on Request

MU2-B-64-445-1-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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MU2-B-64-445-1-A21-B-C Description

Short technical summary and product information.

MU2-B-64-445-1-A21-B-C is a magnetic hydraulic delay circuit breaker from Littelfuse. It is rated for 4.5A at 250V and provides two-pole overcurrent protection. The push-to-reset actuator supports manual resetting.

 

The breaker is designed for panel mounting and does not include illumination. It carries approval markings for CCC, CSA, and UL1077. These attributes make it appropriate for overcurrent protection in panel-mounted electrical equipment rated to 250V.

MU2-B-64-445-1-A21-B-C Quick Information

Product Type: Circuit Breaker
Series: MU2
Canonical Name: Magnetic Hydraulic Delay Circuit Breaker, 2 Pole, 4.5A, 250V, Panel Mount
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

MU2-B-64-445-1-A21-B-C Compliance

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

MU2-B-64-445-1-A21-B-C Features

  • Rated for 4.5A current protection.
  • Provides 250V rated circuit protection.
  • Two-pole magnetic hydraulic delay breaker.
  • Uses panel mount push-to-reset actuator.
  • Approved under CCC CSA and UL1077.

MU2-B-64-445-1-A21-B-C Applications

  • Provides two-pole overcurrent circuit protection.
  • Suitable for panel-mount control equipment.
  • Used where push-to-reset operation is required.
  • Protects circuits rated at 250V.

MU2-B-64-445-1-A21-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of this circuit breaker?

4.5A.

What is the voltage rating of this circuit breaker?

250V.

What type of breaker is this?

Magnetic hydraulic delay circuit breaker.

How many poles does this breaker have?

2 poles.

What actuator type is used?

Push-to-reset.

What mounting type is supported?

Panel mount.

What agency approvals does this breaker carry?

CCC, CSA, and UL1077.

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