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MU1-B-22-470-1-A21-B-E The Littelfuse MU1-B-22-470-1-A21-B-E is a 7A 250V 1-pole magnetic hydraulic delay circuit breaker. It features a push-to-reset actuator and panel mount design.
Mfr Part #:

MU1-B-22-470-1-A21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse MU1-B-22-470-1-A21-B-E is a 7A 250V 1-pole magnetic hydraulic delay circuit breaker. It features a push-to-reset actuator and panel mount design.
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MU1-B-22-470-1-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-22-470-1-A21-B-E Description

Short technical summary and product information.

The Littelfuse MU1-B-22-470-1-A21-B-E is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection. It is rated for 7A continuous current at 250V AC or DC, providing reliable trip characteristics under fault conditions.

 

This circuit breaker features a push-to-reset actuator for manual reset after a trip event. It is designed for panel mount installation and has no illumination. The breaker has been certified by multiple safety agencies including CCC, CSA, TUV, and UL.

 

The magnetic hydraulic delay mechanism offers precise tripping with time delay, making it suitable for applications with inrush currents such as motors and transformers. The compact design allows for easy integration into control panels and equipment enclosures.

 

The part is manufactured by Littelfuse Inc. with manufacturer part number MU1-B-22-470-1-A21-B-E. It is also cross-referenced under distributor part number 432-MU1-B-22-470-1-A21-B-E-ND.

MU1-B-22-470-1-A21-B-E Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse MU1-B-22-470-1-A21-B-E 7A 250V 1-Pole Magnetic Hydraulic Delay Circuit Breaker with Push-to-Reset Actuator
Subcategory: Magnetic Hydraulic Delay Circuit Breaker

MU1-B-22-470-1-A21-B-E Compliance

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

MU1-B-22-470-1-A21-B-E Features

  • Rated for 7A at 250V AC/DC.
  • Single-pole magnetic hydraulic delay design.
  • Push-to-reset actuator for manual reset.
  • Panel mount installation style.
  • Certified by CCC, CSA, TUV, UL.

MU1-B-22-470-1-A21-B-E Applications

  • Overcurrent protection for 7A rated circuits.
  • Time-delay tripping for inrush currents.
  • Panel mount integration in control cabinets.
  • Manual reset via push-to-reset button.

MU1-B-22-470-1-A21-B-E FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the MU1-B-22-470-1-A21-B-E?

250V.

What is the current rating of this circuit breaker?

7A.

How many poles does this circuit breaker have?

1 pole.

What type of circuit breaker is this?

Magnetic hydraulic delay.

What type of actuator does this circuit breaker use?

Push-to-reset.

What is the mounting type for this circuit breaker?

Panel mount.

What approvals does the MU1-B-22-470-1-A21-B-E have?

CCC, CSA, TUV, UL.

MU1-B-22-470-1-A21-B-E Alternate Parts

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Littelfuse Inc.
The Littelfuse Inc. MU1-B-34-470-1-A21-B-E is a magnetic hydraulic delay circuit breaker. It features a 7A current rating and 250V voltage rating.
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