CMB-063-11CNN-W-A Equivalent & Substitute Parts

Part Overview

The CMB-063-11CNN-W-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 6A at 250V AC and 32V DC. This single-pole, panel-mount device features push-to-reset actuation and is designed for overcurrent protection in low-voltage applications. The part maintains active product status and carries multiple international approvals including CE, cUL, TUV, UL1077, and UL1500 certifications. Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

CMB-063-11CNN-W-A

Carling TechnologiesIn Stock: 1124CMB-063-11CNN-W-A Datasheet

Current PartRFQ

CBW57-EJ-6A

OptiFuseIn Stock: 1462CBW57-EJ-6A Datasheet

Parametric EquivalentRFQ

CBW57-EL4-6A

OptiFuseIn Stock: 1447CBW57-EL4-6A Datasheet

Parametric EquivalentRFQ

CBW57-ES-6A

OptiFuseIn Stock: 2941CBW57-ES-6A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CMB-063-11CNN-W-A are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria include:

Electrical Parameters:

• Current Rating: 6A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Breaker Type: Thermal (exact match required)
• Actuator Type: Push to Reset (exact match required)

Mechanical Parameters:

• Mounting Type: Panel Mount (exact match required)
• Number of Poles: 1 (exact match required)

Compliance Parameters:

• RoHS3 Compliant status (required)
• REACH Unaffected status (required)

The substitute parts CBW57-EJ-6A, CBW57-EL4-6A, and CBW57-ES-6A, all manufactured by OptiFuse, meet these core electrical and mechanical requirements. These parts are classified as parametric equivalents within the CBW57 series. A variance exists in DC voltage rating (50V DC for substitutes versus 32V DC for the main part); however, this represents a higher rating and does not restrict substitution in applications operating at or below 32V DC.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and comply with ROHS3 and REACH requirements, matching the environmental and regulatory compliance profile of the CMB-063-11CNN-W-A.

Carling Technologies CMB-063-11CNN-W-A carries approvals under CE, cUL, TUV, UL1077, and UL1500 standards.

OptiFuse CBW57 Series (CBW57-EJ-6A, CBW57-EL4-6A, CBW57-ES-6A) carry approvals under cURus, IP 40, SAE J1171, UL 1077, and UL 1500 standards. Both the main part and substitute parts include UL 1077 and UL 1500 certifications, establishing common regulatory acceptance for thermal circuit breaker applications.

The substitute parts feature a higher DC voltage rating (50V DC) compared to the main part (32V DC). This higher rating does not restrict substitution in circuits operating at or below 32V DC, as the substitute parts are rated for the full operating range of the original component.

Inventory availability for substitute parts is as follows: CBW57-EJ-6A (1366 units), CBW57-EL4-6A (1393 units), and CBW57-ES-6A (2884 units), compared to 1095 units of the main part.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match exactly for substitution?

A: Current rating (6A), AC voltage rating (250V), breaker type (thermal), and actuator type (push to reset) must match exactly. The DC voltage rating of substitute parts (50V) exceeds the main part specification (32V), which does not restrict substitution in applications operating at 32V DC or lower.

Q: Are the OptiFuse CBW57 series parts mechanically compatible with the CMB-063-11CNN-W-A?

A: Yes. Both the main part and all substitute parts are single-pole, panel-mount thermal circuit breakers with push-to-reset actuation. Mechanical compatibility is established through matching mounting type and pole configuration.

Q: Do the substitute parts carry equivalent regulatory approvals?

A: Both the main part and substitute parts include UL 1077 and UL 1500 certifications. The main part carries additional CE and TUV approvals, while substitute parts carry cURus, IP 40, and SAE J1171 approvals. Application requirements determine whether additional certifications are necessary.

Q: What is the difference between CBW57-EJ-6A, CBW57-EL4-6A, and CBW57-ES-6A?

A: All three parts are parametric equivalents within the OptiFuse CBW57 series with identical electrical and mechanical specifications. Differences exist only in internal construction or connector variants, which are not specified in the provided parameters. Selection between these variants depends on application-specific connector or terminal requirements.

Q: Can substitute parts be used in existing designs without modification?

A: Substitute parts meet all specified electrical and mechanical parameters. Physical form factor compatibility with existing panel cutouts and connector interfaces must be verified through mechanical drawings or physical comparison, as these details are not provided in the parameter set.

Q: What is the RoHS and REACH compliance status of all parts?

A: All parts, including the main part and all substitutes, are ROHS3 compliant and REACH unaffected, meeting current environmental and chemical restriction requirements.