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MU1-B-20-430-1-A21-B-E The Littelfuse Inc. MU1-B-20-430-1-A21-B-E is a single-pole, magnetic (hydraulic delay) circuit breaker. It features a panel mount design and a push-to-reset actuator.
Mfr Part #:

MU1-B-20-430-1-A21-B-E

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-20-430-1-A21-B-E is a single-pole, magnetic (hydraulic delay) circuit breaker. It features a panel mount design and a push-to-reset actuator.
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MU1-B-20-430-1-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-20-430-1-A21-B-E Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-20-430-1-A21-B-E is a single-pole circuit breaker designed for panel mounting. It operates with a current rating of 3A and a voltage rating of 250V.

 

The breaker type is magnetic with a hydraulic delay, and it features a push-to-reset actuator. It has no illumination and is approved by CCC, CSA, TUV, and UL.

 

Compliance information indicates RoHS3 compliance, MSL 1 Unlimited, and REACH Unaffected status. The part is identified by DK Part Number 432-MU1-B-20-430-1-A21-B-E-ND.

MU1-B-20-430-1-A21-B-E Quick Information

Product Type: Circuit Breaker
Series: MU1
Canonical Name: Littelfuse Inc. MU1-B-20-430-1-A21-B-E Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MU1-B-20-430-1-A21-B-E Compliance

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

MU1-B-20-430-1-A21-B-E Features

  • 3A current rating and 250V voltage rating.
  • Magnetic (hydraulic delay) breaker type.
  • Panel mount with push-to-reset actuator.
  • Approved by CCC, CSA, TUV, and UL.
  • RoHS3 compliant.

MU1-B-20-430-1-A21-B-E Applications

  • Ideal for power distribution panels.
  • Used in industrial control equipment.
  • Suitable for motor protection circuits.
  • Applies in automotive auxiliary power distribution.

MU1-B-20-430-1-A21-B-E FAQs

6 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the MU1-B-20-430-1-A21-B-E?

250V.

What is the current rating of this circuit breaker?

3A.

How many poles does the MU1-B-20-430-1-A21-B-E have?

1 pole.

What type of circuit breaker is the MU1-B-20-430-1-A21-B-E?

Magnetic (Hydraulic Delay).

What is the mounting style of this circuit breaker?

Panel mount.

What type of actuator does the circuit breaker use?

Push to reset.

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