MU1-B-30-250-3-A21-B-C The Littelfuse Inc. MU1-B-30-250-3-A21-B-C is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism.
Mfr Part #:

MU1-B-30-250-3-A21-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-30-250-3-A21-B-C is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism.
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MU1-B-30-250-3-A21-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
Voltage Rating

MU1-B-30-250-3-A21-B-C Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-30-250-3-A21-B-C is a single-pole circuit breaker with a current rating of 500mA and a voltage rating of 250V. It utilizes a magnetic hydraulic delay for its tripping mechanism and features a push-to-reset actuator.

 

The breaker is designed for panel mounting, offering a secure and accessible installation point. It has received approvals from CCC, CSA, and UL1077, indicating compliance with relevant safety standards.

 

This component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1, signifying it is suitable for a wide range of environmental conditions. The REACH status is unaffected.

 

Key specifications include a 500mA current rating, 250V voltage rating, and a magnetic hydraulic delay type. The actuator is a push-to-reset button, and the mounting type is panel mount. It offers one pole and no illumination.

MU1-B-30-250-3-A21-B-C Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse Inc. MU1-B-30-250-3-A21-B-C Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

MU1-B-30-250-3-A21-B-C Compliance

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

MU1-B-30-250-3-A21-B-C Features

  • Single-pole circuit breaker with 500mA rating.
  • Rated for 250V AC operation.
  • Magnetic hydraulic delay tripping mechanism.
  • Panel mount design for easy installation.
  • Push-to-reset actuator for operation.

MU1-B-30-250-3-A21-B-C Applications

  • Suitable for general circuit protection.
  • Used in control panel assemblies.
  • Ideal for equipment requiring specific delays.
  • Applications requiring UL1077 certification.

MU1-B-30-250-3-A21-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MU1-B-30-250-3-A21-B-C circuit breaker?

The current rating is 500mA.

What is the voltage rating for this circuit breaker?

The voltage rating is 250V.

What type of breaker mechanism does the MU1-B-30-250-3-A21-B-C use?

It uses 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 this circuit breaker 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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