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MU1-B-34-450-2-C21-B-C Circuit breaker rated 5A at 250V AC/DC. Single-pole magnetic hydraulic delay type with push-to-reset actuation and panel mount.
Mfr Part #:

MU1-B-34-450-2-C21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Circuit breaker rated 5A at 250V AC/DC. Single-pole magnetic hydraulic delay type with push-to-reset actuation and panel mount.
Stock on Request

MU1-B-34-450-2-C21-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-34-450-2-C21-B-C Description

Short technical summary and product information.

The Littelfuse MU1-B-34-450-2-C21-B-C is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection in industrial and commercial applications. It features a push-to-reset actuator for manual reset after a fault.

 

This breaker is rated for 5A continuous current at 250V AC/DC and utilizes a magnetic hydraulic delay mechanism to provide precise overload protection. It is panel mounted and does not include illumination.

 

The device carries approvals from CCC, CSA, and UL1077, indicating compliance with international safety standards. The non-illuminated push-to-reset design simplifies integration into existing control panels.

MU1-B-34-450-2-C21-B-C Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse MU1-B-34-450-2-C21-B-C 5A 250V 1-Pole Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Hydraulic Delay Circuit Breaker

MU1-B-34-450-2-C21-B-C Compliance

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

MU1-B-34-450-2-C21-B-C Features

  • Magnetic hydraulic delay trip mechanism.
  • Rated for 5A continuous current at 250V.
  • Single-pole push-to-reset actuation.
  • Panel mount design with no illumination.
  • Approved by CCC, CSA, and UL1077.

MU1-B-34-450-2-C21-B-C Applications

  • Overcurrent protection for industrial control panels.
  • Protection for power supplies and transformers.
  • Used in motor control circuits.
  • Circuit protection in HVAC systems.
  • Panel mount breaker for power distribution.

MU1-B-34-450-2-C21-B-C FAQs

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

250V AC/DC.

What is the current rating?

5A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay) type.

How many poles does it have?

1 pole.

What actuator type is used?

Push to Reset.

What mounting style does it support?

Panel Mount.

What agency approvals does it have?

CCC, CSA, and UL1077.

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