CLB-183-11BNB-B-A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The CLB-183-11BNB-B-A is an active thermal circuit breaker manufactured by Carling Technologies, designed for panel mount applications. This single-pole breaker provides overcurrent protection at 18A with dual voltage ratings of 250V AC and 32V DC, featuring push-to-reset manual actuation. The product is in active production status with 1146 units currently in stock. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

CLB-183-11BNB-B-A

Carling TechnologiesIn Stock: 1227CLB-183-11BNB-B-A Datasheet

Current PartRFQ

CBW57-HS-18A

OptiFuseIn Stock: 1302CBW57-HS-18A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CLB-183-11BNB-B-A is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

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

Allowable Variance:

• Voltage Rating - DC: The substitute part (CBW57-HS-18A) operates at 50V DC, which exceeds the minimum requirement of 32V DC. Higher DC voltage ratings are acceptable as they provide extended operational capability within the same circuit protection framework.

Compliance Alignment:

• Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory consistency across substitution.

The CBW57-HS-18A from OptiFuse meets all mandatory parameters and operates within acceptable variance limits for DC voltage rating, qualifying it as a parametric equivalent for the CLB-183-11BNB-B-A.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The CLB-183-11BNB-B-A remains the specified component when available. This part carries approvals from CE, cUL, TUV, UL1077, and UL1500, with active production status and confirmed inventory of 1146 units.

Substitute Part Selection: The CBW57-HS-18A from OptiFuse is qualified as a direct substitute when the primary part is unavailable. This part maintains active production status with 1215 units in inventory. The substitute carries approvals from cURus, IP 40, SAE J1171, UL 1077, and UL 1500, providing equivalent regulatory coverage for thermal circuit breaker applications.

Voltage Rating Consideration: The CBW57-HS-18A operates at 50V DC compared to the primary part's 32V DC rating. This higher DC voltage rating does not restrict substitution; it extends the operational envelope and maintains full compatibility with circuits designed for 32V DC operation.

Compliance Status: Both parts are ROHS3 compliant and REACH unaffected, ensuring consistent environmental and regulatory compliance across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can the CBW57-HS-18A replace the CLB-183-11BNB-B-A in all applications?

A: Yes. The CBW57-HS-18A meets all mandatory electrical and mechanical parameters. The higher 50V DC rating of the substitute part does not restrict its use in circuits specified for 32V DC operation.

Q: What is the significance of the different DC voltage ratings?

A: The CLB-183-11BNB-B-A is rated for 32V DC, while the CBW57-HS-18A is rated for 50V DC. The substitute part's higher rating provides extended operational capability and is fully compatible with applications requiring 32V DC protection.

Q: Are the approval agencies equivalent between the two parts?

A: Both parts carry UL 1077 and UL 1500 approvals, which are the primary standards for thermal circuit breakers. The primary part includes CE and TUV approvals, while the substitute includes cURus and SAE J1171 approvals. Selection should align with specific regional or application requirements.

Q: What is the packaging difference between these parts?

A: The CLB-183-11BNB-B-A is supplied with standard packaging, while the CBW57-HS-18A is supplied in bulk packaging. This difference does not affect electrical or mechanical compatibility.

Q: Are both parts currently in production?

A: Yes. Both the CLB-183-11BNB-B-A and CBW57-HS-18A maintain active production status with confirmed inventory availability.

Q: What is the Moisture Sensitivity Level (MSL) of the primary part?

A: The MSL specification is not provided for the CLB-183-11BNB-B-A. The substitute part CBW57-HS-18A is rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.