CLB-053-11ANN-B-A Equivalent & Substitute Parts

Part Overview

The CLB-053-11ANN-B-A is a thermal circuit breaker manufactured by Carling Technologies, designed for panel mount applications. This single-pole device operates at 5A current rating with 250 V AC and 32 V DC voltage specifications, featuring push-to-reset actuation. The product is active and maintains full compliance with CE, cUL, TUV, UL1077, and UL1500 approval agencies. ROHS3 compliance and REACH unaffected status confirm environmental regulatory adherence.

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

Key Parameters

Parameter	Value
Breaker Type	Thermal
Current Rating	5A
Voltage Rating - AC	250 V
Voltage Rating - DC	32 V
Mounting Type	Panel Mount
Actuator Type	Push to Reset
Number of Poles	1
Illumination	None

Substitute Part Grouping Explanation

Substitution eligibility for the CLB-053-11ANN-B-A is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

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

All identified substitute parts from OptiFuse (CBW57 series) maintain identical specifications for these critical parameters. The substitute parts operate at 50 V DC, which exceeds the 32 V DC requirement of the main part, providing enhanced voltage margin without compromising circuit protection function. All substitute parts carry active product status and maintain ROHS3 compliance with REACH unaffected designation.

Parameter Comparison

Parameter	CLB-053-11ANN-B-A (Carling)	CBW57-EJ-5A (OptiFuse)	CBW57-EL4-5A (OptiFuse)	CBW57-ES-5A (OptiFuse)	CBW57-PF-5A-5X (OptiFuse)	CBW57-PL-5A-5X (OptiFuse)	CBW57-PS-5A (OptiFuse)	CBW57-PS-5A-1X (OptiFuse)	CBW57-PS-5A-5X (OptiFuse)	CBW57-PS-5A-W (OptiFuse)
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	250 V	250 V	250 V	250 V	250 V	250 V	250 V	250 V	250 V	250 V
Voltage Rating - DC	32 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V	50 V
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	Not Specified	REACH Unaffected	Not Specified

Engineering Selection Recommendations

All OptiFuse CBW57 series substitute parts satisfy the electrical and mechanical requirements for direct replacement of the CLB-053-11ANN-B-A. Selection among substitute options depends on inventory availability and specific application requirements.

Compliance Considerations:

The CLB-053-11ANN-B-A carries approvals from CE, cUL, TUV, UL1077, and UL1500. OptiFuse substitute parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 approvals. Both the main part and all substitutes maintain ROHS3 compliance and REACH unaffected status, confirming environmental regulatory alignment.

Voltage Margin:

All substitute parts operate at 50 V DC, exceeding the 32 V DC specification of the main part. This higher DC voltage rating provides additional operational margin without altering circuit protection characteristics or thermal response.

Inventory Availability:

OptiFuse CBW57-ES-5A maintains the highest inventory level at 5,629 units. CBW57-PS-5A and CBW57-PS-5A-W each maintain inventory above 2,100 units. All substitute parts are classified as active products with confirmed stock availability.

Frequently Asked Questions (FAQ)

Q: Can OptiFuse CBW57 series parts directly replace the Carling CLB-053-11ANN-B-A?

A: Yes. All OptiFuse CBW57 series substitute parts match the critical electrical parameters: 5A current rating, 250 V AC voltage, thermal breaker type, push-to-reset actuation, single-pole configuration, and panel mount design. Mechanical compatibility is maintained across all identified substitutes.

Q: What is the significance of the higher 50 V DC rating on substitute parts?

A: The substitute parts operate at 50 V DC compared to the main part's 32 V DC specification. This represents an increased voltage margin that enhances operational safety without affecting circuit protection function or thermal response characteristics. The higher rating accommodates a broader range of DC applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified OptiFuse CBW57 series substitute parts maintain ROHS3 compliance, matching the environmental regulatory status of the CLB-053-11ANN-B-A.

Q: What approval agencies certify the substitute parts?

A: OptiFuse CBW57 series parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 approvals. The main part carries CE, cUL, TUV, UL1077, and UL1500 approvals. Both share UL 1077 and UL 1500 certifications, confirming compatibility with standard circuit breaker safety requirements.

Q: Which substitute part offers the highest inventory availability?

A: CBW57-ES-5A maintains the highest inventory level at 5,629 units in stock. CBW57-PS-5A and CBW57-PS-5A-W each maintain inventory exceeding 2,100 units.

Q: Are there packaging differences among the substitute parts?

A: All identified substitute parts are supplied in bulk packaging, matching the packaging specification of the main part CLB-053-11ANN-B-A.

Q: What is the Moisture Sensitivity Level (MSL) for substitute parts?

A: OptiFuse CBW57 series parts carry MSL 1 (Unlimited) designation, indicating no moisture sensitivity constraints for storage or handling.

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