CLB-103-11ANN-B-A/10 Equivalent & Substitute Parts

Part Overview

The CLB-103-11ANN-B-A/10 is a thermal circuit breaker manufactured by Carling Technologies, rated for 10A at 250V AC and 32V DC. This single-pole, panel-mount device features push-to-reset actuation and holds active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards. The device is ROHS3 compliant and REACH unaffected.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits selection from qualified alternatives that meet identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Breaker Type	Thermal
Current Rating	10A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
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-103-11ANN-B-A/10 is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

Current Rating: 10A (exact match required)
Voltage Rating - AC: 250V (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)
Breaker Type: Thermal (exact match required)

Acceptable Variance:

Voltage Rating - DC: The main part specifies 32V DC. Substitute parts rated at 50V DC are acceptable as this represents a higher voltage capability and maintains backward compatibility in applications requiring 32V DC operation.

All substitute parts listed are manufactured by OptiFuse under the CBW57 series and maintain active product status with ROHS3 compliance and REACH unaffected designation.

Parameter Comparison

Parameter	CLB-103-11ANN-B-A/10	CBW57-EJ-10A	CBW57-EL4-10A	CBW57-ES-10A-5H	CBW57-PB-10A-5X	CBW57-PB-10A-X	CBW57-PF-10A-5X	CBW57-PL-10A-5X	CBW57-PS-10A	CBW57-PS-10A-1X	CBW57-PS-10A-5X
Manufacturer	Carling Technologies	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse
Breaker Type	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal
Current Rating (Amps)	10A	10A	10A	10A	10A	10A	10A	10A	10A	10A	10A
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
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
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	Not Specified	Not Specified	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original CLB-103-11ANN-B-A/10. The OptiFuse CBW57 series alternatives carry approval designations including cURus, IP 40, SAE J1171, UL 1077, and UL 1500, providing comprehensive safety certification coverage.

The primary distinction among substitute options relates to packaging and connector configurations, indicated by suffix designations (EJ, EL4, ES, PB, PF, PL, PS variants). These designations do not alter electrical performance or core mechanical compatibility. Selection among available substitutes should be based on specific connector or terminal requirements dictated by the application's panel interface design.

The elevated DC voltage rating (50V) of OptiFuse alternatives compared to the 32V specification of the original part provides enhanced capability for DC circuit protection applications while maintaining full compatibility with 32V DC systems.

Frequently Asked Questions (FAQ)

Q: Can CBW57 series parts directly replace the CLB-103-11ANN-B-A/10?

A: Yes. All listed CBW57 variants meet the critical electrical parameters: 10A current rating, 250V AC voltage rating, single-pole configuration, thermal operation, and push-to-reset actuation. Panel-mount compatibility is maintained across all alternatives.

Q: What is the significance of the different CBW57 suffix designations?

A: Suffix designations (EJ, EL4, ES, PB, PF, PL, PS) indicate variations in connector type, terminal configuration, or packaging format. These do not affect electrical performance or thermal protection characteristics. Selection should align with the specific terminal or connector requirements of the target application.

Q: Is the 50V DC rating of OptiFuse parts a limitation compared to the 32V specification?

A: No. The 50V DC rating represents a higher voltage capability and is fully backward compatible with applications requiring 32V DC protection. The higher rating provides additional design margin without compromising performance at lower voltages.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance designation, matching the environmental compliance status of the original CLB-103-11ANN-B-A/10.

Q: What approval agencies certify the substitute parts?

A: OptiFuse CBW57 series parts carry certifications from cURus, UL 1077, and UL 1500, with additional IP 40 and SAE J1171 designations. These certifications provide comprehensive safety and performance validation for industrial and automotive applications.

Q: Can I select any CBW57 variant based solely on availability?

A: Selection must account for connector and terminal type requirements specific to the panel interface design. While all variants share identical electrical and thermal characteristics, the physical connector configuration must match the application's terminal specifications.

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