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MU1-B-12-620-3-A11-B-C The Littelfuse Inc. MU1-B-12-620-3-A11-B-C is a 1-pole circuit breaker designed for panel mounting. It features a push-to-reset actuator and a magnetic hydraulic delay mechanism.
Mfr Part #:

MU1-B-12-620-3-A11-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MU1-B-12-620-3-A11-B-C is a 1-pole circuit breaker designed for panel mounting. It features a push-to-reset actuator and a magnetic hydraulic delay mechanism.
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MU1-B-12-620-3-A11-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
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MU1-B-12-620-3-A11-B-C Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-12-620-3-A11-B-C is a single-pole circuit breaker with a current rating of 20A and a voltage rating of 250V. It is designed for panel mounting and features a convenient push-to-reset actuator.

 

The breaker type is magnetic with a hydraulic delay, providing reliable overcurrent protection. It is approved by CCC, CSA, and UL1077, ensuring compliance with various industry standards. The component is RoHS3 compliant and has an MSL of 1.

 

This circuit breaker is suitable for applications requiring robust protection against electrical faults. Its panel mount design allows for easy integration into control panels and equipment enclosures.

MU1-B-12-620-3-A11-B-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. MU1-B-12-620-3-A11-B-C Circuit Breaker

MU1-B-12-620-3-A11-B-C Compliance

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

MU1-B-12-620-3-A11-B-C Features

  • Rated 20A at 250V voltage.
  • Magnetic hydraulic delay trip mechanism.
  • 1-pole design for single-phase circuits.
  • Push-to-reset actuator for easy reset.
  • Panel mount for secure installation.

MU1-B-12-620-3-A11-B-C Applications

  • Overcurrent protection in industrial control panels.
  • Power distribution systems requiring 20A protection.
  • Equipment needing magnetic-hydraulic trip characteristics.
  • Supplementary protection per UL1077 requirements.

MU1-B-12-620-3-A11-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the MU1-B-12-620-3-A11-B-C?

20A.

What is the voltage rating?

250V.

What is the breaker type?

Magnetic (Hydraulic Delay).

How many poles does it have?

1 pole.

What is the actuator type?

Push to Reset.

What approvals does it have?

CCC, CSA, UL1077.

What is the mounting type?

Panel Mount.

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