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MU1-B-12-440-P-A11-B-M The Littelfuse Inc. MU1-B-12-440-P-A11-B-M is a single-pole, magnetic (hydraulic delay) circuit breaker. It features a panel mount design and a 4A current rating.
Mfr Part #:

MU1-B-12-440-P-A11-B-M

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-12-440-P-A11-B-M is a single-pole, magnetic (hydraulic delay) circuit breaker. It features a panel mount design and a 4A current rating.
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MU1-B-12-440-P-A11-B-M 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-12-440-P-A11-B-M Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-12-440-P-A11-B-M is a single-pole circuit breaker designed for panel mounting. It operates with a magnetic (hydraulic delay) mechanism and has a current rating of 4A and a voltage rating of 250V.

 

The breaker type is magnetic with a hydraulic delay, offering reliable overcurrent protection. The actuator type is push to reset, providing a user-friendly interface for operation. It is approved by CCC, CSA, and UL1077 agencies, ensuring compliance with various safety standards.

 

Environmental compliance includes RoHS3 status. The component is designed for applications requiring robust circuit protection with specific electrical and mechanical characteristics. Its panel mount capability makes it suitable for integration into various equipment and systems.

MU1-B-12-440-P-A11-B-M Quick Information

Product Type: Circuit Breaker
Series: MU1-B
Canonical Name: Littelfuse Inc. MU1-B-12-440-P-A11-B-M Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Circuit Breaker

MU1-B-12-440-P-A11-B-M Compliance

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

MU1-B-12-440-P-A11-B-M Features

  • 4A current rating, 250V voltage rating.
  • Magnetic (hydraulic delay) breaker type.
  • Panel mount, push to reset actuator.
  • CCC, CSA, UL1077 agency approvals.
  • RoHS3 compliant environmental status.

MU1-B-12-440-P-A11-B-M Applications

  • Suitable for overcurrent protection.
  • Designed for panel mount installations.
  • Used in systems requiring 4A protection.
  • Applicable for 250V rated circuits.

MU1-B-12-440-P-A11-B-M FAQs

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

4A

What is the voltage rating?

250V

How many poles does it have?

1 pole

What type of circuit breaker is it?

Magnetic (Hydraulic Delay)

What actuator type does it use?

Push to Reset

What approvals does it hold?

CCC, CSA, UL1077

What is the mounting type?

Panel Mount

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