CLB-183-12C3N-B-A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The CLB-183-12C3N-B-A is an active thermal circuit breaker manufactured by Carling Technologies, rated for 18A at 250V AC and 32V DC. This single-pole, panel-mount device features push-to-reset actuation and holds multiple international approvals including CE, cUL, TUV, UL1077, and UL1500 certifications. The part is ROHS3 compliant and REACH unaffected. Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility while maintaining circuit protection specifications.

Substiute Parts

CLB-183-12C3N-B-A

Carling TechnologiesIn Stock: 1175CLB-183-12C3N-B-A Datasheet

Current PartRFQ

CBW57-HS-18A

OptiFuseIn Stock: 1302CBW57-HS-18A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The CLB-183-12C3N-B-A has been identified with one parametric equivalent: CBW57-HS-18A from OptiFuse. Substitution eligibility is determined by matching the following critical parameters:

• Current Rating: 18A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Breaker Type: Thermal (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Actuator Type: Push to Reset (exact match required)
• Number of Poles: 1 (exact match required)
• Illumination: None (exact match required)

The substitute part CBW57-HS-18A meets all critical electrical and mechanical parameters. A variance exists in the DC voltage rating: the main part is rated 32V DC while the substitute is rated 50V DC. This represents an upward tolerance in DC capability and does not restrict substitution in applications requiring 32V DC operation.

Parameter Comparison

Engineering Selection Recommendations

Both the CLB-183-12C3N-B-A and CBW57-HS-18A are active products with current manufacturing status. The CLB-183-12C3N-B-A carries approvals from CE, cUL, TUV, UL1077, and UL1500. The CBW57-HS-18A carries approvals from cURus, IP 40, SAE J1171, UL 1077, and UL 1500. Both parts are ROHS3 compliant and REACH unaffected.

Selection between these parts should be based on:

1. Regulatory approval requirements specific to the application region and end-use industry
2. Existing certification documentation and qualification status within the design
3. Inventory availability and lead time considerations
4. DC voltage margin requirements (the CBW57-HS-18A provides 50V DC rating versus 32V DC for the main part)

The CBW57-HS-18A is electrically and mechanically compatible for applications operating at or below 32V DC, as its 50V DC rating provides additional margin.

Frequently Asked Questions (FAQ)

Q: Can the CBW57-HS-18A replace the CLB-183-12C3N-B-A in all applications?

A: The CBW57-HS-18A is compatible for applications requiring 18A thermal circuit protection at 250V AC and up to 32V DC. Both parts share identical current rating, AC voltage rating, breaker type, mounting configuration, and actuation method. The substitute part has a higher DC voltage rating (50V versus 32V), which does not restrict its use in 32V DC applications.

Q: What are the differences in regulatory approvals between these parts?

A: The CLB-183-12C3N-B-A holds CE, cUL, TUV, UL1077, and UL1500 certifications. The CBW57-HS-18A holds cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both parts meet UL 1077 and UL 1500 standards. Application-specific regulatory requirements should determine which part's approval portfolio is appropriate.

Q: Are there packaging differences between the main part and substitute?

A: The CLB-183-12C3N-B-A is supplied with standard packaging. The CBW57-HS-18A is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: What is the significance of the DC voltage rating difference?

A: The main part is rated 32V DC while the substitute is rated 50V DC. This difference represents an upward tolerance in the substitute part's DC capability. For applications operating at 32V DC or lower, the higher rating of the substitute part provides additional safety margin and does not create any compatibility issues.

Q: Are both parts currently available for procurement?

A: Both parts maintain active product status. The CLB-183-12C3N-B-A has 1085 pieces in stock. The CBW57-HS-18A has 1215 pieces in stock. Current availability should be confirmed with the respective manufacturers or authorized distributors.

Q: Do both parts comply with environmental regulations?

A: Both the CLB-183-12C3N-B-A and CBW57-HS-18A are ROHS3 compliant and REACH unaffected, meeting current environmental compliance requirements for electronic components.