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CMB-123-12HNN-B-A The Littelfuse Inc. CMB-123-12HNN-B-A is a thermal circuit breaker designed for panel mounting. It features a 12A current rating and a 250V AC voltage rating.
Mfr Part #:

CMB-123-12HNN-B-A

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. CMB-123-12HNN-B-A is a thermal circuit breaker designed for panel mounting. It features a 12A current rating and a 250V AC voltage rating.
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CMB-123-12HNN-B-A 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)
Failure Rate
Illumination
Mounting Type
Number of Poles
Voltage Rating
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CMB-123-12HNN-B-A Description

Short technical summary and product information.

The Littelfuse Inc. CMB-123-12HNN-B-A is a single-pole thermal circuit breaker suitable for various applications requiring reliable overcurrent protection. It is designed for panel mount installations, offering a convenient and secure fit.

 

This circuit breaker operates with a current rating of 12A and a voltage rating of 250V AC, with a DC voltage rating of 32V. The actuator type is push-to-reset, allowing for easy operation and restoration of power after a trip.

 

Compliance agencies include CE, cUL, TUV, UL1077, and UL1500, indicating adherence to relevant safety standards. The series designation is CMB. The RoHS status is RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1 Unlimited.

CMB-123-12HNN-B-A Quick Information

Product Type: Circuit Breaker
Series: CMB
Canonical Name: CMB-123-12HNN-B-A Thermal Circuit Breaker
Subcategory: Thermal Circuit Breaker

CMB-123-12HNN-B-A Compliance

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

CMB-123-12HNN-B-A Features

  • 12A current rating for protection.
  • 250V AC and 32V DC voltage rating.
  • Thermal breaker type for safety.
  • Panel mount for easy installation.
  • Push-to-reset actuator for operation.

CMB-123-12HNN-B-A Applications

  • Overcurrent protection for industrial control panels.
  • Suitable for automotive DC power systems.
  • Used in marine and RV electrical systems.
  • Ideal for power supply input protection.

CMB-123-12HNN-B-A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the CMB-123-12HNN-B-A circuit breaker?

The current rating is 12A.

What is the AC voltage rating for the CMB-123-12HNN-B-A?

The AC voltage rating is 250V.

What is the DC voltage rating for the CMB-123-12HNN-B-A?

The DC voltage rating is 32V.

How is the CMB-123-12HNN-B-A circuit breaker mounted?

It is designed for panel mount installation.

What type of actuator does the CMB-123-12HNN-B-A have?

It features a push-to-reset actuator.

What is the RoHS status of the CMB-123-12HNN-B-A?

The RoHS status is RoHS3 Compliant.

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

The MSL is 1 Unlimited.

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