CLB-153-11B2N-B-A Equivalent & Substitute Parts

Part Overview

The CLB-153-11B2N-B-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 15A at 250V AC and 32V DC with push-to-reset panel mount actuation. This single-pole breaker is designed for overcurrent protection in AC and DC applications and maintains Active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits selection from alternative manufacturers offering equivalent electrical and mechanical specifications. The CLB-153-11B2N-B-A has multiple parametric equivalents available from OptiFuse within the CBW57 series, all sharing identical core functional parameters.

Key Parameters

Parameter	Value
Current Rating	15A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
Breaker Type	Thermal
Mounting Type	Panel Mount
Actuator Type	Push to Reset
Number of Poles	1
Illumination	None
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CLB-153-11B2N-B-A is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

Current Rating: 15A
Voltage Rating - AC: 250V
Voltage Rating - DC: Minimum 32V (substitute parts rated 50V DC exceed specification and remain compatible)
Breaker Type: Thermal
Mounting Type: Panel Mount
Actuator Type: Push to Reset
Number of Poles: 1
Illumination: None

All substitute parts listed are manufactured by OptiFuse under the CBW57 series designation. Each substitute maintains identical AC voltage rating (250V), current rating (15A), thermal breaker classification, single-pole configuration, and push-to-reset actuation. The DC voltage rating on substitute parts is 50V, which exceeds the 32V requirement of the main part and does not restrict substitution. All substitute parts carry ROHS3 compliance and Active product status.

Parameter Comparison

Parameter	CLB-153-11B2N-B-A (Carling)	CBW57-EJ-15A (OptiFuse)	CBW57-EL4-15A (OptiFuse)	CBW57-ES-15A (OptiFuse)	CBW57-ES-15A-5X (OptiFuse)	CBW57-GS-15A-WB (OptiFuse)	CBW57-HB-15A-P (OptiFuse)	CBW57-HS-15A-5X (OptiFuse)	CBW57-PB-15A-5X (OptiFuse)	CBW57-PB-15A-WX (OptiFuse)	CBW57-PS-15A (OptiFuse)
Current Rating (Amps)	15A	15A	15A	15A	15A	15A	15A	15A	15A	15A	15A
Voltage Rating - AC	250V	250V	250V	250V	250V	250V	250V	250V	250V	250V	250V
Voltage Rating - DC	32V	50V	50V	50V	50V	50V	50V	50V	50V	50V	50V
Breaker Type	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal
Mounting Type	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount
Actuator Type	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset	Push to Reset
Number of Poles	1	1	1	1	1	1	1	1	1	1	1
Illumination	None	None	None	None	None	None	None	None	None	None	None
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts from the OptiFuse CBW57 series meet the electrical and mechanical requirements for direct substitution with the CLB-153-11B2N-B-A. Selection among the substitute options should be based on the following factors:

Compliance and Certification: The main part CLB-153-11B2N-B-A carries approvals from CE, cUL, TUV, UL1077, and UL1500. All OptiFuse CBW57 substitutes carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both sets of approvals satisfy industrial and commercial circuit breaker standards.

Product Availability: Inventory levels vary across substitute options. CBW57-HB-15A-P maintains the highest stock level at 8,822 pieces, followed by CBW57-ES-15A at 3,521 pieces. Lower inventory items such as CBW57-GS-15A-WB (1,003 pieces) and CBW57-PB-15A-WX (936 pieces) may present longer procurement timelines.

Moisture Sensitivity: Most OptiFuse substitutes specify MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling. This classification matches standard industrial component requirements.

DC Voltage Margin: All substitute parts are rated for 50V DC, providing an 18V margin above the 32V DC requirement of the main part. This additional rating margin does not affect substitution eligibility and may provide enhanced reliability in marginal DC applications.

Frequently Asked Questions (FAQ)

Q: Can CBW57 series parts directly replace the CLB-153-11B2N-B-A in existing designs?

A: Yes. All listed CBW57 substitutes share identical current rating (15A), AC voltage rating (250V), thermal breaker type, single-pole configuration, push-to-reset actuation, and panel mount form factor. The 50V DC rating on CBW57 parts exceeds the 32V DC requirement and does not restrict substitution.

Q: What is the significance of the higher DC voltage rating on OptiFuse parts?

A: The CBW57 series is rated for 50V DC compared to the CLB-153-11B2N-B-A rating of 32V DC. This higher rating indicates the substitute parts are qualified for a broader range of DC applications. In applications requiring only 32V DC operation, the higher rating provides additional design margin without affecting performance or compatibility.

Q: Are there differences in thermal trip characteristics between the main part and substitutes?

A: The provided specifications do not include thermal trip curve data or time-current characteristics. Both the main part and all substitutes are classified as thermal breakers with identical 15A current ratings. Thermal response characteristics are not provided in the available parameters and should be verified through detailed product datasheets if precise trip timing is critical to the application.

Q: Which substitute part should be selected for new designs?

A: Selection should prioritize parts with highest current inventory availability and shortest lead times. CBW57-HB-15A-P offers the largest stock position (8,822 pieces) and represents the most readily available option. CBW57-ES-15A (3,521 pieces) and CBW57-HS-15A-5X (1,831 pieces) provide secondary alternatives with substantial inventory levels.

Q: Do all substitute parts carry the same regulatory approvals?

A: The main part carries CE, cUL, TUV, UL1077, and UL1500 approvals. All OptiFuse CBW57 substitutes carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 approvals. Both certification sets satisfy industrial circuit breaker standards. The specific approval agencies differ, but the functional standards (UL 1077, UL 1500) are common to both.

Q: Are there packaging or quantity considerations when ordering substitutes?

A: All parts are available in Bulk packaging. Specific quantity designations in part numbers (such as -5X or -WX suffixes) indicate packaging variants or configuration options. Detailed packaging specifications should be confirmed with the supplier to ensure compatibility with procurement and assembly requirements.

Q: What is the REACH compliance status of substitute parts?

A: The main part CLB-153-11B2N-B-A lists REACH Unaffected status. Most OptiFuse CBW57 substitutes also specify REACH Unaffected status, with the exception of CBW57-ES-15A-5X and CBW57-GS-15A-WB, which do not include REACH status documentation in the available parameters. REACH compliance should be confirmed with the supplier for applications requiring explicit REACH documentation.

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