CLB-053-12CNN-W-H/05 Equivalent & Substitute Parts

Part Overview

The CLB-053-12CNN-W-H/05 is a thermal circuit breaker manufactured by Carling Technologies, rated for 5A 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 component 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 alternative qualified sources meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	CLB-053-12CNN-W-H/05
Manufacturer	Carling Technologies
Series	CLB
Breaker Type	Thermal
Current Rating	5A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
Mounting Type	Panel Mount
Actuator Type	Push to Reset
Number of Poles	1
Illumination	None
Product Status	Active
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution eligibility for the CLB-053-12CNN-W-H/05 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Current Rating: 5A
Voltage Rating - AC: 250V
Mounting Type: Panel Mount
Breaker Type: Thermal
Actuator Type: Push to Reset
Number of Poles: 1
Illumination: None

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 that maintains backward compatibility with the 32V DC requirement.

All substitute parts listed are manufactured by OptiFuse under the CBW57 series and maintain active product status with ROHS3 compliance and REACH unaffected designation. Each substitute part satisfies the electrical and mechanical requirements for direct replacement in applications designed for the CLB-053-12CNN-W-H/05.

Parameter Comparison

Parameter	CLB-053-12CNN-W-H/05	CBW57-EJ-5A	CBW57-EL4-5A	CBW57-ES-5A	CBW57-PF-5A-5X	CBW57-PL-5A-5X	CBW57-PS-5A	CBW57-PS-5A-1X	CBW57-PS-5A-5X	CBW57-PS-5A-W
Manufacturer	Carling Technologies	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse	OptiFuse
Series	CLB	CBW57	CBW57	CBW57	CBW57	CBW57	CBW57	CBW57	CBW57	CBW57
Breaker Type	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal
Current Rating (Amps)	5A	5A	5A	5A	5A	5A	5A	5A	5A	5A
Voltage Rating - AC	250V	250V	250V	250V	250V	250V	250V	250V	250V	250V
Voltage Rating - DC	32V	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
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
Number of Poles	1	1	1	1	1	1	1	1	1	1
Illumination	None	None	None	None	None	None	None	None	None	None
Product Status	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
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	Not Specified	Not Specified	Not Specified	REACH Unaffected	REACH Unaffected	Not Specified

Engineering Selection Recommendations

All listed substitute parts are qualified equivalents for the CLB-053-12CNN-W-H/05 based on electrical and mechanical parameter alignment. Selection among the OptiFuse CBW57 series alternatives should be based on the following factors:

Compliance and Certification: All substitute parts maintain ROHS3 compliance and active product status. The CBW57 series holds cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications, which provide equivalent regulatory coverage to the original part's CE, cUL, TUV, UL1077, and UL1500 approvals.

Inventory Availability: Substitute parts demonstrate varying inventory levels. CBW57-ES-5A offers the highest stock position at 5,629 units. CBW57-PS-5A provides 2,137 units, and CBW57-PS-5A-W provides 2,112 units. These three options present optimal availability for immediate procurement.

Voltage Rating Consideration: All substitute parts are rated for 50V DC, which exceeds the original part's 32V DC specification. This higher rating ensures compatibility with the CLB-053-12CNN-W-H/05 application requirements while providing additional design margin.

Moisture Sensitivity: All substitute parts specify Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture-related handling restrictions during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can OptiFuse CBW57 series parts directly replace the Carling Technologies CLB-053-12CNN-W-H/05?

A: Yes. All listed OptiFuse CBW57 parts are parametric equivalents meeting the mandatory electrical specifications: 5A current rating, 250V AC voltage rating, 32V DC minimum voltage rating, panel mount configuration, thermal breaker type, push-to-reset actuation, and single-pole design. The 50V DC rating on substitute parts provides higher voltage capability than the original 32V DC specification, ensuring full compatibility.

Q: What is the significance of the different CBW57 part number suffixes (EJ, EL4, ES, PF, PL, PS)?

A: The suffixes denote internal design variations within the CBW57 series. All variants listed maintain identical electrical and mechanical parameters relevant to substitution. The suffix differences reflect manufacturing or packaging distinctions that do not affect functional equivalence for the CLB-053-12CNN-W-H/05 replacement application.

Q: Are there any certifications or compliance differences between the original part and substitutes?

A: The original CLB-053-12CNN-W-H/05 holds CE, cUL, TUV, UL1077, and UL1500 certifications. All substitute CBW57 parts hold cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both certification sets provide equivalent regulatory coverage for industrial and commercial circuit breaker applications. The UL 1077 and UL 1500 standards are common to both part families.

Q: What is the difference between CBW57-PS-5A, CBW57-PS-5A-1X, CBW57-PS-5A-5X, and CBW57-PS-5A-W?

A: These part numbers represent the same electrical and mechanical specifications with variations in packaging configuration or tape-and-reel specifications. All four variants are electrically and mechanically equivalent for direct substitution purposes. Selection should be based on procurement packaging requirements and inventory availability.

Q: Is the higher 50V DC rating on substitute parts a concern for 32V DC applications?

A: No. A higher voltage rating indicates the component can safely operate at voltages up to 50V DC. Applications designed for 32V DC operation remain fully compatible, as the substitute parts are rated for this voltage and above. The higher rating provides additional design margin without affecting performance in lower-voltage applications.

Q: Which substitute part offers the best inventory position?

A: CBW57-ES-5A provides the highest inventory level at 5,629 units in stock. For applications requiring immediate availability, this part number presents the optimal selection among the listed substitutes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed OptiFuse CBW57 substitute parts are ROHS3 compliant, matching the environmental compliance status of the original CLB-053-12CNN-W-H/05.

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