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CMB-123-12H5B-W-A/12 This Littelfuse CMB-123-12H5B-W-A/12 is a single pole thermal circuit breaker rated for 12A at 250V. It features a push-to-reset actuator and panel mount design.
Mfr Part #:

CMB-123-12H5B-W-A/12

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
This Littelfuse CMB-123-12H5B-W-A/12 is a single pole thermal circuit breaker rated for 12A at 250V. It features a push-to-reset actuator and panel mount design.
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CMB-123-12H5B-W-A/12 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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CMB-123-12H5B-W-A/12 Description

Short technical summary and product information.

The Littelfuse CMB-123-12H5B-W-A/12 is a thermal circuit breaker designed for overcurrent protection in various applications. It is rated for 12A continuous current and 250V AC/DC voltage, providing reliable tripping under overload conditions. The breaker utilizes a thermal mechanism that responds to current-induced heating, offering a time-delay characteristic suitable for many electrical systems. This single-pole device features a push-to-reset actuator, allowing manual reset after a fault condition. The panel mount configuration enables easy installation in control panels and equipment enclosures. With no illumination, it is a straightforward, non-lighted breaker ideal for industrial and commercial use.

CMB-123-12H5B-W-A/12 Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse CMB-123-12H5B-W-A/12 Thermal Circuit Breaker
Subcategory: Single Pole Circuit Breaker

CMB-123-12H5B-W-A/12 Compliance

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

CMB-123-12H5B-W-A/12 Features

  • Rated for 12A continuous current at 250V.
  • Single pole thermal trip mechanism.
  • Push-to-reset actuator for manual reset.
  • Panel mount design for easy installation.
  • No illumination for simple operation.

CMB-123-12H5B-W-A/12 Applications

  • Overcurrent protection in industrial control panels.
  • Protection for power supplies and transformers.
  • Suitable for motor branch circuits.
  • Used in commercial equipment requiring manual reset.

CMB-123-12H5B-W-A/12 FAQs

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

12A.

What is the voltage rating?

250V.

What type of breaker is this?

Thermal.

How many poles does it have?

1.

What is the actuator type?

Push to Reset.

Does this circuit breaker have illumination?

No, it is non-illuminated.

What is the mounting type?

Panel Mount.

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