Product Identity:
Part Number: CMB-043-27JNN-W-A/04
Manufacturer: Littelfuse Inc.
Canonical Name: CMB-043-27JNN-W-A/04 Thermal Circuit Breaker
Product Type: Circuit Breaker
Category: Circuit Protection
Subcategory: Thermal Circuit Breaker
Mounting Type: Panel Mount

Summary:
Thermal circuit breaker rated 4A, 250V, 1-pole with push-to-reset actuation. Panel mount.

Description:
This Littelfuse CMB-043-27JNN-W-A/04 is a single-pole thermal circuit breaker designed for overcurrent protection. It has a current rating of 4A and a voltage rating of 250V, featuring a push-to-reset actuator. The device is panel mounted and is non-illuminated. It carries multiple safety approvals including CE, cUL, TUV, UL1077, and UL1500, making it suitable for a variety of industrial and marine applications. The thermal breaker mechanism provides reliable protection against sustained overloads by tripping when current exceeds the rated value for a period.

Specifications:
- 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:
- Stock Status: Stock on Request
- Distributor Count: 0
- Total Stock: 0
- Pricing Available: No

Features:
- Rated for 4A continuous current at 250VAC.
- Single-pole thermal circuit breaker.
- Push-to-reset actuator design.
- Panel mount installation.
- Approved to CE, cUL, TUV, UL1077, UL1500.

Applications:
- Used for overcurrent protection in power supplies.
- Ideal for appliance and industrial control panels.
- Suitable for low-voltage circuit protection.
- Common in automotive and marine applications.
- Protects wiring and components from overloads.

Compliance:
- RoHS Status: RoHS3 Compliant
- REACH Status: REACH Unaffected
- Moisture Sensitivity Level: 1 Unlimited

Documents and Media:
- Product Page: https://distyparts.com/product/cmb-043-27jnn-w-a-04
- RFQ URL: https://distyparts.com/product/cmb-043-27jnn-w-a-04#rfq

FAQs:
Q: What is the current rating of this circuit breaker?
A: 4A.

Q: What is the voltage rating?
A: 250V.

Q: What type of circuit breaker is this?
A: Thermal.

Q: How many poles does it have?
A: 1.

Q: What is the actuator type?
A: Push to reset.

Q: What approvals does this circuit breaker have?
A: CE, cUL, TUV, UL1077, UL1500.

Q: What is the mounting type?
A: 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-043-27jnn-w-a-04
- Markdown File: https://distyparts.com/product/cmb-043-27jnn-w-a-04.md
- TXT File: https://distyparts.com/product/cmb-043-27jnn-w-a-04.txt