CLB-103-12C3N-W-H Equivalent & Substitute Parts

Part Overview

The CLB-103-12C3N-W-H 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 is designed for overcurrent protection in industrial and commercial applications. The part maintains active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when inventory requirements necessitate alternative manufacturers.

Key Parameters

Parameter	Value
Manufacturer	Carling Technologies
Part Number	CLB-103-12C3N-W-H
Series	CLB
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
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the CLB-103-12C3N-W-H are qualified based on electrical and mechanical parameter equivalence. The critical parameters determining substitution eligibility are:

Electrical Parameters:

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

Mechanical Parameters:

Mounting Type: Panel Mount (exact match required)
Actuator Type: Push to Reset (exact match required)
Number of Poles: 1 (exact match required)

All substitute parts listed are manufactured by OptiFuse under the CBW57 series. These parts maintain identical current ratings, AC voltage ratings, mounting configurations, and actuation mechanisms. The DC voltage rating for substitute parts is 50V, which exceeds the 32V DC specification of the primary part, providing enhanced capability in DC applications. All substitute parts carry active product status and maintain ROHS3 compliance with equivalent regulatory approvals.

Parameter Comparison

Parameter	CLB-103-12C3N-W-H	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
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

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the CLB-103-12C3N-W-H. Selection among the OptiFuse CBW57 series alternatives should be based on inventory availability and application-specific requirements.

Inventory Availability: The CBW57-PS-10A-5X variant offers the highest inventory level at 5,818 pieces, followed by CBW57-ES-10A-5H with 3,044 pieces. These options provide optimal lead-time assurance for high-volume procurement.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance and carry equivalent regulatory approvals including cURus, UL 1077, and UL 1500 certifications. The primary part CLB-103-12C3N-W-H carries CE, cUL, TUV, UL1077, and UL1500 approvals. OptiFuse substitutes carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 approvals, ensuring compliance in equivalent application environments.

DC Voltage Capability: Substitute parts are rated for 50V DC compared to the primary part's 32V DC rating. This enhanced DC voltage capability provides additional operational margin in DC circuit protection applications without compromising AC performance.

Frequently Asked Questions (FAQ)

Q: Can OptiFuse CBW57 series parts directly replace the Carling Technologies CLB-103-12C3N-W-H?

A: Yes. All listed OptiFuse CBW57 variants are direct electrical and mechanical equivalents. They maintain identical current ratings (10A), AC voltage ratings (250V), mounting configurations (panel mount), and actuation mechanisms (push to reset). The 50V DC rating of OptiFuse parts exceeds the 32V DC specification of the primary part.

Q: What is the difference between the various CBW57 part numbers?

A: The CBW57 series variants listed differ in packaging and connector configurations, indicated by the suffix designations (EJ, EL4, ES, PB, PF, PL, PS). These designations reflect different mechanical interfaces and packaging options. All variants maintain identical electrical specifications for current, voltage, and breaker type.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the primary CLB-103-12C3N-W-H part.

Q: Which substitute part has the best inventory availability?

A: The CBW57-PS-10A-5X maintains the highest inventory level at 5,818 pieces in stock, followed by CBW57-ES-10A-5H with 3,044 pieces.

Q: Does the higher DC voltage rating of substitute parts affect AC performance?

A: No. The 50V DC rating of OptiFuse substitutes does not affect AC circuit protection performance. Both the primary part and substitutes are rated for 250V AC operation. The enhanced DC rating provides additional capability without performance degradation in AC applications.

Q: Are there any differences in regulatory approvals between the primary part and substitutes?

A: The primary CLB-103-12C3N-W-H carries CE, cUL, TUV, UL1077, and UL1500 approvals. OptiFuse substitutes carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 approvals. Both certification sets ensure compliance for industrial and commercial circuit protection applications.

Q: Can I mix different CBW57 variants in the same application?

A: Yes. All CBW57 variants listed maintain identical electrical specifications and can be used interchangeably from an electrical performance standpoint. Selection should be based on mechanical interface requirements and packaging specifications for your specific installation.

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