CLB-253-11ANN-W-H/25 Equivalent & Substitute Parts

Part Overview

The CLB-253-11ANN-W-H/25 is a thermal circuit breaker manufactured by Carling Technologies, rated for 25A at 250V AC and 32V DC. This single-pole, panel-mount device features push-to-reset actuation and is designed for overcurrent protection in industrial and commercial applications. The part maintains active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits equivalent functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	CLB-253-11ANN-W-H/25
Manufacturer	Carling Technologies
Series	CLB
Breaker Type	Thermal
Current Rating	25A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
Mounting Type	Panel Mount
Actuator Type	Push to Reset
Number of Poles	1
Illumination	None
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the CLB-253-11ANN-W-H/25 are qualified based on the following critical parameters that determine functional equivalence:

Matching Parameters (Required for Substitution):

Current Rating: 25A
Voltage Rating - AC: 250V
Mounting Type: Panel Mount
Breaker Type: Thermal
Actuator Type: Push to Reset
Number of Poles: 1
Illumination: None

Allowable Variation:

Voltage Rating - DC: The main part is rated 32V DC. Substitute parts are rated 50V DC, which represents a higher voltage capability and is acceptable for applications requiring 32V DC operation.

All identified substitute parts are manufactured by OptiFuse under the CBW57 series and meet or exceed the electrical and mechanical specifications of the CLB-253-11ANN-W-H/25. Each substitute maintains active product status and ROHS3 compliance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Mounting Type	Breaker Type	Actuator Type	Poles	Product Status	RoHS Status
CLB-253-11ANN-W-H/25	Carling Technologies	CLB	25	250	32	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-EJ-25A	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-ES-25A	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-ES-25A-5H	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-PB-25A-5X	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-PS-25A	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-PS-25A-5X	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant
CBW57-PS-25A-5XD	OptiFuse	CBW57	25	250	50	Panel Mount	Thermal	Push to Reset	1	Active	ROHS3 Compliant

Engineering Selection Recommendations

All identified substitute parts maintain active product status and comply with ROHS3 requirements, matching the environmental and regulatory compliance profile of the CLB-253-11ANN-W-H/25. The OptiFuse CBW57 series alternatives carry approval certifications including cURus, IP 40, SAE J1171, UL 1077, and UL 1500, providing equivalent or enhanced regulatory coverage for industrial applications.

The primary distinction among substitute options relates to actuator configuration and connector type, indicated by suffix designations (EJ, ES, PB, PS variants). These designations reflect mechanical interface differences that do not affect electrical performance but may influence panel integration requirements. Selection among CBW57 variants should be based on mechanical compatibility with existing panel cutouts and connector specifications.

The elevated DC voltage rating (50V versus 32V) in OptiFuse substitutes provides additional design margin for DC applications and does not compromise performance in 32V DC circuits.

Frequently Asked Questions (FAQ)

Q: Can CBW57 series parts directly replace the CLB-253-11ANN-W-H/25?

A: Yes. All CBW57 variants listed meet the critical electrical parameters: 25A current rating, 250V AC voltage rating, thermal breaker type, push-to-reset actuation, single-pole configuration, and panel-mount installation. The 50V DC rating in CBW57 parts exceeds the 32V DC requirement and is compatible with 32V DC applications.

Q: What do the suffix designations (EJ, ES, PB, PS) indicate?

A: Suffix designations identify mechanical and connector variations within the CBW57 series. These differences affect physical interface characteristics and panel mounting compatibility but do not alter electrical performance or current/voltage ratings.

Q: Are there inventory differences among the substitute options?

A: Yes. Inventory levels vary across CBW57 variants, ranging from 764 to 1681 pieces in stock. CBW57-PS-25A maintains the highest inventory at 1681 pieces, while CBW57-PB-25A-5X maintains the lowest at 764 pieces.

Q: Do all substitutes carry the same regulatory approvals?

A: All CBW57 substitutes carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. The original CLB-253-11ANN-W-H/25 carries CE, cUL, TUV, UL1077, and UL1500 certifications. Both certification profiles support industrial and commercial applications.

Q: Is the higher DC voltage rating in CBW57 parts a concern?

A: No. A higher voltage rating indicates greater electrical capability and does not create compatibility issues in circuits operating at lower voltages. The 50V DC rating in CBW57 parts is suitable for all applications requiring 32V DC protection.

Q: What is the significance of the REACH Unaffected status?

A: REACH Unaffected status indicates that the part is not subject to REACH regulatory restrictions. This status is present on most CBW57 variants and the original CLB-253-11ANN-W-H/25, confirming compliance with European chemical substance regulations.

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