MU1-B-12-620-3-A21-B-M The Littelfuse Inc. MU1-B-12-620-3-A21-B-M is a single-pole, magnetic circuit breaker rated for 20A and 250V. It features a panel mount design and a push-to-reset actuator.
Mfr Part #:

MU1-B-12-620-3-A21-B-M

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-12-620-3-A21-B-M is a single-pole, magnetic circuit breaker rated for 20A and 250V. It features a panel mount design and a push-to-reset actuator.
Stock on Request

MU1-B-12-620-3-A21-B-M Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Actuator Type
Approval Agency
Automotive Grade
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Number of Poles
SVHC Present
Voltage Rating

MU1-B-12-620-3-A21-B-M Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-12-620-3-A21-B-M is a single-pole circuit breaker designed for reliable circuit protection. It operates with a magnetic tripping mechanism, offering a hydraulic delay for specific applications.

 

The breaker is rated for a maximum current of 20A and a voltage of 250V. It features a convenient push-to-reset actuator and is designed for panel mounting, making it suitable for integration into various electrical systems.

 

Key approvals include CCC, CSA, and UL1077, indicating compliance with relevant safety standards. The RoHS status is compliant with RoHS3, and it has an MSL rating of 1 Unlimited, with REACH status unaffected.

 

This circuit breaker is ideal for applications requiring robust overcurrent protection with a clear indication of status and a simple reset mechanism. Its panel mount capability ensures easy installation in control panels and equipment.

MU1-B-12-620-3-A21-B-M Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse Inc. MU1-B-12-620-3-A21-B-M Circuit Breaker

MU1-B-12-620-3-A21-B-M Compliance

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

MU1-B-12-620-3-A21-B-M Features

  • 20A current rating for robust protection.
  • 250V voltage rating for versatile use.
  • Magnetic breaker with hydraulic delay.
  • Panel mount design for easy integration.
  • Push-to-reset actuator for simple operation.

MU1-B-12-620-3-A21-B-M Applications

  • Ideal for control panel installations.
  • Suitable for industrial equipment protection.
  • Used in power distribution systems.
  • Applicable in machinery safety circuits.

MU1-B-12-620-3-A21-B-M FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MU1-B-12-620-3-A21-B-M circuit breaker?

The current rating is 20A.

What is the voltage rating for this Littelfuse circuit breaker?

The voltage rating is 250V.

What type of breaker is the MU1-B-12-620-3-A21-B-M?

It is a Magnetic (Hydraulic Delay) breaker type.

How many poles does this circuit breaker have?

This circuit breaker has 1 pole.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

Is the MU1-B-12-620-3-A21-B-M RoHS compliant?

Yes, it is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1 Unlimited.

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