CMB-203-11D3N-W-A Littelfuse CMB-203-11D3N-W-A is a 1-pole thermal circuit breaker rated for 20A at 250V. It features a push-to-reset actuator and panel mount design.
Mfr Part #:

CMB-203-11D3N-W-A

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse CMB-203-11D3N-W-A is a 1-pole thermal circuit breaker rated for 20A at 250V. It features a push-to-reset actuator and panel mount design.
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CMB-203-11D3N-W-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)
Illumination
Mounting Type
Number of Poles
Voltage Rating

CMB-203-11D3N-W-A Description

Short technical summary and product information.

The Littelfuse CMB-203-11D3N-W-A is a single-pole thermal circuit breaker designed for overcurrent protection in electrical circuits. It is rated for a continuous current of 20A at a voltage rating of 250V, making it suitable for a range of power distribution and equipment protection applications.

 

The breaker uses a thermal trip mechanism to provide reliable overcurrent protection. Its push-to-reset actuator allows for manual reset after a trip event, simplifying operation and maintenance. The non-illuminated actuator provides a straightforward, uncomplicated interface.

 

This circuit breaker is designed for panel mounting, allowing for secure installation in equipment enclosures and control panels. The single-pole configuration protects one circuit conductor, which is common in many AC and DC applications.

 

The CMB-203-11D3N-W-A carries approvals from CE, cUL, TUV, UL1077, and UL1500, indicating compliance with recognized safety standards for circuit protection devices.

CMB-203-11D3N-W-A Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse CMB-203-11D3N-W-A 20A 250V 1-Pole Thermal Circuit Breaker
Subcategory: Circuit Breakers

CMB-203-11D3N-W-A Compliance

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

CMB-203-11D3N-W-A Features

  • Rated for 20A at 250V operation.
  • Single-pole thermal circuit breaker design.
  • Push-to-reset actuator for manual reset.
  • Panel mount for secure installation.
  • Approved by CE, cUL, TUV, UL1077, UL1500.

CMB-203-11D3N-W-A Applications

  • Used for overcurrent protection in circuits.
  • Suitable for panel-mounted equipment installations.
  • Provides manual reset via push-to-reset actuator.
  • Protects single-pole electrical circuits.

CMB-203-11D3N-W-A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the CMB-203-11D3N-W-A?

The current rating is 20A.

What is the voltage rating of the CMB-203-11D3N-W-A?

The voltage rating is 250V.

What type of circuit breaker is the CMB-203-11D3N-W-A?

It is a thermal circuit breaker.

How many poles does the CMB-203-11D3N-W-A have?

It has 1 pole.

What type of actuator does the CMB-203-11D3N-W-A use?

It uses a push-to-reset actuator.

What is the mounting type for the CMB-203-11D3N-W-A?

It is a panel mount device.

What approvals does the CMB-203-11D3N-W-A have?

It is approved by CE, cUL, TUV, UL1077, and UL1500.

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