CLB-153-12CNN-R-A Equivalent & Substitute Parts

Part Overview

The CLB-153-12CNN-R-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 15A at 250V AC and 32V DC with push-to-reset panel mount actuation. This single-pole breaker is designed for overcurrent protection in AC and DC applications and maintains active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards.

Substitute parts are necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits selection from qualified alternatives that meet identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Breaker Type	Thermal
Current Rating	15A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
Mounting Type	Panel Mount
Actuator Type	Push to Reset
Number of Poles	1
Illumination	None
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the CLB-153-12CNN-R-A are qualified based on the following critical parameters:

Electrical Equivalence Requirements:

Current Rating: 15A (exact match)
Voltage Rating - AC: 250V (exact match)
Voltage Rating - DC: 50V minimum (CLB-153-12CNN-R-A rated at 32V DC; all substitutes rated at 50V DC, providing higher DC voltage capability)

Mechanical & Functional Equivalence Requirements:

Breaker Type: Thermal
Mounting Type: Panel Mount
Actuator Type: Push to Reset
Number of Poles: 1
Illumination: None

Compliance Requirements:

RoHS3 Compliant
REACH Unaffected
Active product status

All substitute parts are manufactured by OptiFuse under the CBW57 series and satisfy these parameters. The DC voltage rating differential (50V vs. 32V) represents an uprated capability and does not restrict substitution in applications requiring 32V DC or lower.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Mounting Type	Breaker Type	Actuator Type	Poles	RoHS Status	Product Status
CLB-153-12CNN-R-A	Carling Technologies	CLB	15	250	32	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-EJ-15A	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-EL4-15A	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-ES-15A	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-ES-15A-5X	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-GS-15A-WB	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-HB-15A-P	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-HS-15A-5X	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-PB-15A	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-PB-15A-5X	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active
CBW57-PB-15A-WX	OptiFuse	CBW57	15	250	50	Panel Mount	Thermal	Push to Reset	1	ROHS3 Compliant	Active

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct substitution with the CLB-153-12CNN-R-A. Selection among the CBW57 series alternatives should be based on the following factors:

Compliance & Certification: All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the primary part. OptiFuse CBW57 series parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications, which overlap with the primary part's UL1077 and UL1500 approvals.

Product Availability: Inventory levels vary across the CBW57 series. CBW57-HB-15A-P offers the highest stock position at 8,822 units. CBW57-ES-15A provides 3,521 units. Other variants range from 827 to 1,862 units. Selection based on availability supports supply chain continuity.

Voltage Rating Consideration: The DC voltage rating differential (50V for all substitutes versus 32V for the primary part) represents an uprated specification. This higher rating does not restrict application in circuits operating at or below 32V DC and provides additional design margin in DC applications.

Moisture Sensitivity Level (MSL): OptiFuse CBW57 parts specify MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can CBW57 series parts directly replace the CLB-153-12CNN-R-A?

A: Yes. All listed CBW57 variants meet the electrical specifications (15A, 250V AC, 32V DC minimum) and mechanical requirements (thermal, panel mount, push-to-reset, single-pole, no illumination) of the CLB-153-12CNN-R-A. The 50V DC rating on CBW57 parts exceeds the 32V DC requirement and does not restrict substitution.

Q: What is the significance of the different part number suffixes in the CBW57 series?

A: The suffixes (EJ, EL4, ES, GS, HB, HS, PB, etc.) and modifiers (5X, WB, WX, P) denote internal design variations within the CBW57 series. All variants listed maintain identical electrical and mechanical parameters for the 15A, 250V AC, 50V DC configuration.

Q: Are there any compliance differences between the primary part and substitutes?

A: The primary part carries CE, cUL, TUV, UL1077, and UL1500 approvals. OptiFuse CBW57 substitutes carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both sets include UL1077 and UL1500 standards. Application-specific compliance requirements should be verified against the end-use regulatory environment.

Q: Does the higher DC voltage rating (50V vs. 32V) affect circuit performance?

A: No. A higher voltage rating indicates the component can safely operate at higher voltages without degradation. In applications operating at 32V DC or lower, the 50V rated component performs identically to the 32V rated component.

Q: What packaging considerations apply to these parts?

A: All parts are supplied in bulk packaging. No special moisture sensitivity precautions are required for CBW57 parts (MSL 1). Standard handling and storage practices for electronic components apply.

Q: Can I mix CLB and CBW57 parts in the same circuit board design?

A: Yes, provided the circuit design accommodates the identical electrical and mechanical specifications. Panel mount footprints and push-to-reset actuation are consistent across both series for the specified ratings.

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