CLB-253-12CNN-W-D/25 Equivalent & Substitute Parts

Part Overview

The CLB-253-12CNN-W-D/25 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 component specifications, enabling direct replacement in applications where the primary part becomes unavailable or when alternative sourcing is required for supply chain optimization.

Substiute Parts

CLB-253-12CNN-W-D/25

Carling TechnologiesIn Stock: 765CLB-253-12CNN-W-D/25 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-253-12CNN-W-D/25 are identified based on strict electrical and mechanical parameter alignment. The critical parameters determining substitution eligibility are:

Electrical Parameters:

• Current Rating: 25A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Breaker Type: Thermal (exact match required)

Mechanical Parameters:

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

All identified substitute parts are manufactured by OptiFuse under the CBW57 series. These parts maintain identical current ratings, AC voltage ratings, actuator types, mounting configurations, and pole counts. The DC voltage rating for substitute parts is specified at 50V, which exceeds the 32V DC specification of the main part, providing enhanced capability within the same application envelope. All substitute parts carry Active product status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and carry ROHS3 compliance, ensuring regulatory alignment with the original CLB-253-12CNN-W-D/25 component. The CBW57 series parts from OptiFuse are certified under cURus, IP 40, SAE J1171, UL 1077, and UL 1500 standards, providing equivalent or enhanced approval coverage compared to the main part's CE, cUL, TUV, UL1077, and UL1500 certifications.

The DC voltage rating differential (50V for substitutes versus 32V for the main part) represents an enhancement in electrical capability and does not restrict substitution in applications operating at or below 32V DC. All substitute parts maintain identical current ratings, AC voltage ratings, actuator mechanisms, mounting configurations, and pole counts, ensuring mechanical and electrical interchangeability within the specified application parameters.

Inventory availability across the substitute parts ranges from 764 to 1681 pieces, providing multiple sourcing options for procurement planning.

Frequently Asked Questions (FAQ)

Q: What determines whether a CBW57 series part can substitute for the CLB-253-12CNN-W-D/25?

A: Substitution is determined by exact alignment of critical electrical and mechanical parameters: 25A current rating, 250V AC voltage rating, thermal breaker type, push-to-reset actuation, panel mount configuration, and single-pole design. All identified CBW57 parts meet these criteria.

Q: Why do the substitute parts have a 50V DC rating when the main part is rated for 32V DC?

A: The 50V DC rating on OptiFuse CBW57 parts represents an enhanced specification that exceeds the 32V DC requirement of the CLB-253-12CNN-W-D/25. This higher rating does not restrict substitution and provides additional capability margin for DC applications operating at or below 32V.

Q: Are there differences in certification standards between the main part and substitute parts?

A: The main part carries CE, cUL, TUV, UL1077, and UL1500 approvals. The substitute parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both sets of parts meet UL 1077 and UL 1500 standards. Application-specific certification requirements should be evaluated based on end-use specifications.

Q: Can all seven CBW57 substitute parts be used interchangeably?

A: Yes. All seven identified substitute parts (CBW57-EJ-25A, CBW57-ES-25A, CBW57-ES-25A-5H, CBW57-PB-25A-5X, CBW57-PS-25A, CBW57-PS-25A-5X, and CBW57-PS-25A-5XD) meet identical electrical and mechanical parameter requirements and are mechanically and electrically interchangeable with the CLB-253-12CNN-W-D/25.

Q: What is the significance of the suffix designations in the CBW57 part numbers?

A: The suffix designations (such as -EJ, -ES, -PB, -PS, and the additional modifiers -5H, -5X, -5XD) represent different connector or terminal configurations within the CBW57 series. All variants maintain the same core electrical specifications and thermal breaker functionality.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All seven substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the main CLB-253-12CNN-W-D/25 component.

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

A: All OptiFuse CBW57 substitute parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.