# CMB-043-12H2N-W-A/04 - Littelfuse Inc. Circuit Breaker

## Product Summary

The Littelfuse Inc. CMB-043-12H2N-W-A/04 is a thermal circuit breaker designed for panel mounting. It features a 4A current rating and 250V voltage rating.

## Product Information

| Field | Value |
| --- | --- |
| Part Number | CMB-043-12H2N-W-A/04 |
| Manufacturer | Littelfuse Inc. |
| Product Type | Circuit Breaker |
| Category | Circuit Protection |
| Subcategory | Thermal |
| Mounting Type | Panel Mount |

## Description

This Littelfuse Inc. CMB-043-12H2N-W-A/04 is a thermal circuit breaker with a 4A current rating and a 250V voltage rating. It is designed for panel mounting and features a push-to-reset actuator.

The breaker operates as a single-pole device and offers no illumination. It is compliant with RoHS3 standards and has an MSL of 1.

Key specifications include a 4A current rating, 250V voltage rating, and a thermal breaker type. The panel mount design makes it suitable for integration into various enclosures and systems. Approval agencies include CE, cUL, TUV, UL1077, and UL1500.

## Key Specifications

| Specification | Value |
| --- | --- |
| Actuator Type | Push to Reset |
| Approval Agency | CE, cUL, TUV, UL1077, UL1500 |
| Breaker Type | Thermal |
| Current Rating | 4 A |
| Current Rating (Amps) | 4 A |
| Illumination | None |
| Mounting Type | Panel Mount |
| Number of Poles | 1 |
| Voltage Rating | 250 V |

## Availability and Pricing

| Field | Value |
| --- | --- |
| Stock Status | Stock on Request |
| Distributor Count | 0 |
| Total Stock | 0 |
| Pricing Available | No |

## Features

- Thermal circuit breaker with 4A rating.
- Rated for 250V AC operation.
- Panel mount design for easy integration.
- Push-to-reset actuator included.
- RoHS3 compliant for environmental standards.

## Applications

- Used for overcurrent protection.
- Suitable for panel installations.
- Ideal for general purpose circuits.
- Compliant with safety standards.

## Compliance

| Field | Value |
| --- | --- |
| RoHS Status | RoHS3 Compliant |
| REACH Status | REACH Unaffected |
| Moisture Sensitivity Level | 1 Unlimited |

## Documents and Media

- Product Page: https://distyparts.com/product/cmb-043-12h2n-w-a-04
- RFQ URL: https://distyparts.com/product/cmb-043-12h2n-w-a-04#rfq

## FAQs

### What is the current rating of the CMB-043-12H2N-W-A/04?

The current rating is 4A.

### What is the voltage rating of this circuit breaker?

The voltage rating is 250V.

### How many poles does the CMB-043-12H2N-W-A/04 have?

It has 1 pole.

### What type of circuit breaker is the CMB-043-12H2N-W-A/04?

It is a thermal circuit breaker.

### What actuator type does this breaker use?

It uses a push-to-reset actuator.

### What is the mounting type for the CMB-043-12H2N-W-A/04?

It is panel mount.

## Related Pages

- Manufacturer: https://distyparts.com/manufacturer/littelfuse-inc
- Category: https://distyparts.com/category/circuit-protection/circuit-breakers
- Product Page: https://distyparts.com/product/cmb-043-12h2n-w-a-04
- Markdown File: https://distyparts.com/product/cmb-043-12h2n-w-a-04.md
- TXT File: https://distyparts.com/product/cmb-043-12h2n-w-a-04.txt