CLB-253-11ANN-B-A/25 Equivalent & Substitute Parts

Part Overview

The CLB-253-11ANN-B-A/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 necessary when the primary manufacturer's inventory is unavailable, when alternative sourcing reduces lead times, or when design flexibility permits selection from qualified equivalent components that meet identical electrical and mechanical specifications.

Substiute Parts

CLB-253-11ANN-B-A/25

Carling TechnologiesIn Stock: 858CLB-253-11ANN-B-A/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-253-11ANN-B-A/25 are qualified based on the following critical parameters:

Electrical Equivalence Requirements:

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

Mechanical Equivalence Requirements:

• Mounting Type: Panel Mount (exact match)
• Illumination: None (exact match)

Compliance Requirements:

• Product Status: Active
• RoHS3 Compliance: Required
• International Approvals: UL1077 and UL1500 (minimum required standards)

All substitute parts listed are manufactured by OptiFuse under the CBW57 series. These components maintain identical electrical ratings for AC voltage and current, identical mechanical mounting configuration, and equivalent thermal protection characteristics. The DC voltage rating variance (50V DC on substitutes versus 32V DC on the main part) represents an uprated specification that does not restrict substitution in applications requiring 32V DC operation.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. The CBW57 series components from OptiFuse carry UL1077 and UL1500 certifications, meeting the minimum required international approval standards established for the CLB-253-11ANN-B-A/25.

The DC voltage rating differential (50V on substitutes versus 32V on the primary part) does not restrict substitution. Applications operating at 32V DC or lower operate within the qualified range of all substitute components. The uprated DC specification on OptiFuse parts provides additional design margin without introducing incompatibility.

All substitute parts are available in bulk packaging with current inventory levels ranging from 764 to 1681 pieces, supporting immediate procurement requirements. Selection among the CBW57 variants should be based on specific connector or terminal configuration requirements, as all electrical and mechanical parameters remain equivalent across the series.

Frequently Asked Questions (FAQ)

Q: Can CBW57 series parts directly replace the CLB-253-11ANN-B-A/25 in existing designs?

A: Yes. All CBW57 substitute parts maintain identical current rating (25A), AC voltage rating (250V), actuator type (push to reset), mounting configuration (panel mount), and pole count (1). The higher DC voltage rating (50V versus 32V) does not restrict substitution in applications operating at 32V DC or lower.

Q: What is the significance of the different part number suffixes within the CBW57 series (EJ, ES, PB, PS variants)?

A: The suffixes denote connector or terminal configuration variants. All variants listed maintain identical electrical specifications and thermal protection characteristics. Selection should be based on the specific connector type required for your application's wiring interface.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All CBW57 substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the CLB-253-11ANN-B-A/25.

Q: What international approvals do the substitute parts carry?

A: CBW57 series parts carry cURus, IP 40, SAE J1171, UL1077, and UL1500 approvals. These certifications meet or exceed the approval requirements of the primary part.

Q: Is there a difference in thermal protection performance between the CLB and CBW57 series?

A: Both series are thermal breaker types with identical 25A current ratings. Thermal protection characteristics are equivalent for applications within the specified voltage and current parameters.

Q: Can I use a CBW57 part in a 32V DC application when the part is rated for 50V DC?

A: Yes. The 50V DC rating on CBW57 parts represents an uprated specification. Operation at 32V DC is fully within the qualified operating range of these components.

Q: What is the inventory status for substitute parts?

A: All CBW57 variants maintain active inventory levels. CBW57-PS-25A has the highest availability at 1681 pieces, while CBW57-PB-25A-5X has 764 pieces in stock. Specific availability should be confirmed at time of procurement.

Q: Are there any mechanical mounting differences between the CLB-253-11ANN-B-A/25 and CBW57 substitutes?

A: No. All parts are panel mount configuration with identical mechanical interface requirements. Physical installation procedures remain unchanged during substitution.