CLB-253-11ANN-R-A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The CLB-253-11ANN-R-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 25A at 250V AC and 32V DC with push-to-reset panel mount actuation. This single-pole breaker is designed for overcurrent protection in industrial and commercial applications. The product is active and currently in stock with 998 units available.

Substitute parts are identified when equivalent electrical and mechanical parameters are met, enabling direct replacement in applications where the original part number becomes unavailable or when alternative sourcing is required for procurement optimization.

Key Parameters

Parameter	Value
Breaker Type	Thermal
Current Rating	25A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
Actuator Type	Push to Reset
Mounting Type	Panel Mount
Number of Poles	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts are classified as parametric equivalents when they satisfy the following core electrical and mechanical criteria:

Primary Matching Parameters:

Current Rating: 25A
Voltage Rating - AC: 250V
Breaker Type: Thermal
Actuator Type: Push to Reset
Mounting Type: Panel Mount
Number of Poles: 1
RoHS Compliance: ROHS3 Compliant

Secondary Consideration:

Voltage Rating - DC: The CLB-253-11ANN-R-A operates at 32V DC. All identified substitute parts from OptiFuse operate at 50V DC, which represents a higher voltage capability and does not restrict substitution in applications rated for 32V DC operation.

All substitute parts are manufactured by OptiFuse under the CBW57 series and maintain active product status with current inventory availability.

Parameter Comparison

Parameter	CLB-253-11ANN-R-A (Carling)	CBW57-EJ-25A (OptiFuse)	CBW57-ES-25A (OptiFuse)	CBW57-ES-25A-5H (OptiFuse)	CBW57-PB-25A-5X (OptiFuse)	CBW57-PS-25A (OptiFuse)	CBW57-PS-25A-5X (OptiFuse)	CBW57-PS-25A-5XD (OptiFuse)
Breaker Type	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal	Thermal
Current Rating (Amps)	25A	25A	25A	25A	25A	25A	25A	25A
Voltage Rating - AC	250V	250V	250V	250V	250V	250V	250V	250V
Voltage Rating - DC	32V	50V	50V	50V	50V	50V	50V	50V
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
Mounting Type	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount	Panel Mount
Number of Poles	1	1	1	1	1	1	1	1
RoHS Status	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

Engineering Selection Recommendations

All identified substitute parts meet the electrical and mechanical requirements for direct replacement of the CLB-253-11ANN-R-A. Selection among the OptiFuse CBW57 series alternatives is based on the following factors:

Compliance and Certification: The CLB-253-11ANN-R-A carries approvals from CE, cUL, TUV, UL1077, and UL1500. All substitute parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both sets of certifications support industrial and commercial circuit protection applications.

Inventory Availability: All substitute parts maintain active inventory status with quantities ranging from 764 to 1681 units. Selection can be based on procurement lead time and supply chain requirements.

Voltage Rating Consideration: The substitute parts operate at 50V DC compared to the original 32V DC rating. This higher DC voltage capability does not restrict operation in 32V DC applications and provides additional margin for system design flexibility.

Moisture Sensitivity: All OptiFuse substitute parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can CBW57 series parts directly replace the CLB-253-11ANN-R-A?

A: Yes. All CBW57 series substitute parts match the critical electrical parameters: 25A current rating, 250V AC voltage rating, thermal breaker type, push-to-reset actuation, single-pole configuration, and panel mount design. The 50V DC rating of substitute parts exceeds the 32V DC requirement and does not restrict substitution.

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

A: The CBW57 series variants (EJ, ES, ES-5H, PB-5X, PS, PS-5X, PS-5XD) differ in internal construction, terminal configuration, or packaging specifications. All variants maintain identical electrical performance for the 25A 250V AC 32V DC application. Selection among variants depends on specific panel mount interface requirements and terminal type compatibility with existing installations.

Q: Are there any compliance differences between the original and substitute parts?

A: Both the CLB-253-11ANN-R-A and all CBW57 substitutes carry UL 1077 and UL 1500 certifications. The original part includes CE and TUV approvals, while substitutes carry cURus and SAE J1171 certifications. Both certification sets support industrial circuit protection applications.

Q: What is the significance of the DC voltage difference (32V vs. 50V)?

A: The substitute parts are rated for 50V DC operation, which is higher than the original 32V DC rating. A higher voltage rating indicates the component can safely operate at the original voltage level with additional safety margin. This does not create any compatibility issues for 32V DC applications.

Q: Are all substitute parts in active production?

A: Yes. All identified substitute parts carry active product status and maintain current inventory levels, ensuring availability for procurement and future reordering.

Q: What packaging format is used for these circuit breakers?

A: All parts, including the original CLB-253-11ANN-R-A and all CBW57 substitutes, are supplied in bulk packaging suitable for direct panel mount installation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message