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MU1-B-12-410-1-A21-B-E Littelfuse MU1-B-12-410-1-A21-B-E is a 1-pole magnetic hydraulic delay circuit breaker rated for 1A at 250V AC. It features a push-to-reset actuator and panel mount design.
Mfr Part #:

MU1-B-12-410-1-A21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MU1-B-12-410-1-A21-B-E is a 1-pole magnetic hydraulic delay circuit breaker rated for 1A at 250V AC. It features a push-to-reset actuator and panel mount design.
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MU1-B-12-410-1-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
Voltage Rating
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MU1-B-12-410-1-A21-B-E Description

Short technical summary and product information.

The Littelfuse MU1-B-12-410-1-A21-B-E is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection in electrical systems. It is rated for 1A continuous current at 250V AC, making it suitable for a variety of low-power applications.

 

The breaker uses a magnetic hydraulic delay mechanism, which provides precise and reliable trip characteristics. The push-to-reset actuator allows for manual reset after a fault condition. The panel mount design enables straightforward installation into a control panel or enclosure.

 

This circuit breaker is part of the MU1-B series from Littelfuse, a manufacturer known for circuit protection components. The non-illuminated actuator keeps the design simple and focused on protection functionality.

MU1-B-12-410-1-A21-B-E Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse MU1-B Series 1A 250V AC 1-Pole Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Circuit Breakers

MU1-B-12-410-1-A21-B-E Compliance

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

MU1-B-12-410-1-A21-B-E Features

  • Rated for 1A at 250V AC operation.
  • Single-pole magnetic hydraulic delay design.
  • Push-to-reset actuator for manual reset.
  • Panel mount for easy installation.
  • Non-illuminated actuator for simple design.

MU1-B-12-410-1-A21-B-E Applications

  • Overcurrent protection in control panels.
  • Protection for industrial automation equipment.
  • Use in power distribution and lighting systems.
  • Suitable for HVAC and appliance applications.

MU1-B-12-410-1-A21-B-E FAQs

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

The current rating is 1A.

What is the voltage rating of this circuit breaker?

The voltage rating is 250V.

What type of breaker is this?

This is a magnetic hydraulic delay circuit breaker.

How many poles does this circuit breaker have?

This circuit breaker has 1 pole.

What is the mounting type for this part?

The mounting type is panel mount.

What type of actuator does this circuit breaker use?

It uses a push-to-reset actuator.

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