CLB-253-11B2N-W-D Equivalent & Substitute Parts

Part Overview

The CLB-253-11B2N-W-D is a thermal circuit breaker manufactured by Carling Technologies, rated for 25A at 250V AC and 32V DC with push-to-reset actuation and panel mount configuration. This component is classified as Active product status and carries multiple international approvals including CE, cUL, TUV, UL1077, and UL1500 certifications. The device is ROHS3 compliant and REACH unaffected.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct functional replacement in circuit protection applications where thermal breaker technology is required.

Substiute Parts

CLB-253-11B2N-W-D

Carling TechnologiesIn Stock: 732CLB-253-11B2N-W-D Datasheet

Current PartRFQ

CBW57-EJ-25A

OptiFuseIn Stock: 1275CBW57-EJ-25A Datasheet

Parametric EquivalentRFQ

CBW57-ES-25A

OptiFuseIn Stock: 1624CBW57-ES-25A Datasheet

Parametric EquivalentRFQ

CBW57-ES-25A-5H

OptiFuseIn Stock: 1272CBW57-ES-25A-5H Datasheet

Parametric EquivalentRFQ

CBW57-PB-25A-5X

OptiFuseIn Stock: 834CBW57-PB-25A-5X Datasheet

Parametric EquivalentRFQ

CBW57-PS-25A

OptiFuseIn Stock: 1711CBW57-PS-25A Datasheet

Parametric EquivalentRFQ

CBW57-PS-25A-5X

OptiFuseIn Stock: 1263CBW57-PS-25A-5X Datasheet

Parametric EquivalentRFQ

CBW57-PS-25A-5XD

OptiFuseIn Stock: 1024CBW57-PS-25A-5XD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CLB-253-11B2N-W-D are identified based on strict electrical and mechanical parameter alignment. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Current Rating: 25A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Breaker Type: Thermal (exact match required)
• Actuator Type: Push to Reset (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Number of Poles: 1 (exact match required)

Allowable Variance:

• Voltage Rating - DC: The main part specifies 32V DC. Substitute parts rated at 50V DC are functionally equivalent, as higher DC voltage ratings provide equal or greater protection capability in the same application context.

All identified substitute parts are manufactured by OptiFuse under the CBW57 series and maintain Active product status with ROHS3 compliance. These parts satisfy the electrical and mechanical requirements for direct substitution in thermal circuit breaker applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original CLB-253-11B2N-W-D component. The OptiFuse CBW57 series alternatives carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications, providing equivalent safety and performance standards.

The primary distinction among substitute options relates to packaging configuration and internal design variants indicated by suffix designations (EJ, ES, ES-5H, PB-5X, PS, PS-5X, PS-5XD). These variants maintain identical electrical and mechanical specifications while accommodating different manufacturing or application-specific requirements.

Selection between substitute parts should be based on packaging availability, inventory levels, and any application-specific requirements related to internal construction or terminal configuration. All alternatives satisfy the core functional requirements of a 25A thermal circuit breaker with 250V AC and push-to-reset operation in panel mount applications.

Frequently Asked Questions (FAQ)

Q: Can OptiFuse CBW57 series parts directly replace the Carling CLB-253-11B2N-W-D?

A: Yes. All identified OptiFuse CBW57 variants meet the critical electrical parameters: 25A current rating, 250V AC voltage rating, thermal breaker type, push-to-reset actuation, and single-pole panel mount configuration. The higher DC voltage rating (50V versus 32V) on OptiFuse parts provides equivalent or superior performance in applications requiring DC protection.

Q: What is the significance of the DC voltage rating difference between the main part and substitutes?

A: The CLB-253-11B2N-W-D is rated for 32V DC, while all OptiFuse CBW57 substitutes are rated for 50V DC. A higher DC voltage rating indicates the component can safely operate across a broader voltage range. In applications operating at or below 32V DC, the 50V-rated OptiFuse parts function identically to the original component.

Q: Are there differences between the various OptiFuse CBW57 part numbers?

A: The CBW57 series variants (EJ, ES, ES-5H, PB-5X, PS, PS-5X, PS-5XD) share identical electrical and mechanical specifications. Suffix designations indicate internal design or packaging variations that do not affect electrical performance or compatibility in standard circuit breaker applications.

Q: What certifications apply to the substitute parts?

A: OptiFuse CBW57 series parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. These certifications align with the safety and performance standards required for thermal circuit breaker applications and are equivalent to the certifications held by the original Carling component.

Q: Is inventory availability a factor in part selection?

A: Inventory levels vary among the substitute options. CBW57-PS-25A maintains the highest inventory at 1,681 pieces, while CBW57-PB-25A-5X has 764 pieces available. Selection should account for project timelines and supply chain requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified OptiFuse CBW57 variants are ROHS3 compliant, matching the environmental compliance status of the original CLB-253-11B2N-W-D component.