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MU1-B-64-425-1-A21-B-C Littelfuse MU1-B-64-425-1-A21-B-C is a 1-pole magnetic hydraulic delay circuit breaker rated at 2.5A and 250V. It features a push-to-reset actuator and panel mount design.
Mfr Part #:

MU1-B-64-425-1-A21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MU1-B-64-425-1-A21-B-C is a 1-pole magnetic hydraulic delay circuit breaker rated at 2.5A and 250V. It features a push-to-reset actuator and panel mount design.
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MU1-B-64-425-1-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
SVHC Present
Voltage Rating
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MU1-B-64-425-1-A21-B-C Description

Short technical summary and product information.

The Littelfuse MU1-B-64-425-1-A21-B-C is a single-pole magnetic circuit breaker with hydraulic delay, designed for overcurrent protection. It is rated for 2.5A at 250V and uses a push-to-reset actuator for manual reset after a trip. The breaker is panel mounted, making it suitable for secure installation in control panels or equipment enclosures. It holds approvals from CCC, CSA, and UL1077, ensuring compliance with international standards. The magnetic hydraulic delay mechanism provides time-delay tripping to tolerate temporary inrush currents without nuisance tripping, ideal for applications with motors or transformers.

MU1-B-64-425-1-A21-B-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse MU1-B-64-425-1-A21-B-C 1-Pole Magnetic Hydraulic Delay Circuit Breaker, 2.5A, 250V, Push-to-Reset
Subcategory: Magnetic Circuit Breaker

MU1-B-64-425-1-A21-B-C Compliance

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

MU1-B-64-425-1-A21-B-C Features

  • Rated for 2.5A at 250V.
  • Single-pole magnetic hydraulic delay breaker.
  • Push-to-reset actuator for easy reset.
  • Panel mount design for secure installation.
  • Approved by CCC, CSA, UL1077.

MU1-B-64-425-1-A21-B-C Applications

  • Overcurrent protection for industrial equipment.
  • Use in power distribution panels.
  • Ideal for motor and transformer protection.
  • Suitable for telecommunications infrastructure.

MU1-B-64-425-1-A21-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the MU1-B-64-425-1-A21-B-C?

250V.

What is the mounting type of this circuit breaker?

Panel Mount.

What is the current rating of this circuit breaker?

2.5A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does this circuit breaker have?

1 pole.

What actuator type does this breaker use?

Push to Reset.

What approvals does this circuit breaker have?

CCC, CSA, UL1077.

MU1-B-64-425-1-A21-B-C Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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MU1-B-34-425-3-A21-B-C
MU1-B-34-425-3-A21-B-C
Littelfuse Inc.
The Littelfuse Inc. MU1-B-34-425-3-A21-B-C is a single-pole circuit breaker designed for panel mounting. It features a push-to-reset actuator and a hydraulic delay mechanism.
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