CLBA-063-NNFNN-B-A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The CLBA-063-NNFNN-B-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 6A 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. Substitute parts become necessary when the primary component experiences extended lead times, inventory constraints, or when design flexibility permits selection from alternative manufacturers meeting equivalent electrical and mechanical specifications.

Substiute Parts

CLBA-063-NNFNN-B-A

Carling TechnologiesIn Stock: 661CLBA-063-NNFNN-B-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 CLBA-063-NNFNN-B-A are qualified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Electrical Parameters:

• Current Rating: 6A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Voltage Rating - DC: Minimum 32V (substitute parts rated at 50V DC exceed minimum requirement)

Mechanical Parameters:

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

All substitute parts listed are manufactured by OptiFuse under the CBW57 series and meet these criteria. The DC voltage rating differential (32V primary versus 50V substitutes) represents an upward specification margin that maintains compatibility within the application envelope.

Parameter Comparison

Engineering Selection Recommendations

All three OptiFuse CBW57 series circuit breakers (CBW57-EJ-6A, CBW57-EL4-6A, CBW57-ES-6A) are qualified substitutes for the CLBA-063-NNFNN-B-A based on electrical and mechanical parameter equivalence. Selection among these three substitute options may be determined by inventory availability and lead time considerations.

Compliance Alignment:

• Primary part certifications: CE, cUL, TUV, UL1077, UL1500
• Substitute part certifications: cURus, IP 40, SAE J1171, UL 1077, UL 1500

Both the primary and substitute parts maintain Active product status and full RoHS3 compliance with REACH unaffected designation, ensuring regulatory continuity in applications requiring these standards.

Inventory Considerations:

• CLBA-063-NNFNN-B-A: 644 units available
• CBW57-EJ-6A: 1366 units available
• CBW57-EL4-6A: 1393 units available
• CBW57-ES-6A: 2884 units available

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match exactly between the primary part and substitute?

A: Current rating (6A), AC voltage rating (250V), breaker type (thermal), actuator type (push to reset), mounting type (panel mount), and pole count (1) must match exactly. The DC voltage rating of substitute parts (50V) exceeds the primary part specification (32V), which is acceptable as it represents an upward margin.

Q: Are the three OptiFuse CBW57 variants electrically interchangeable?

A: Yes. CBW57-EJ-6A, CBW57-EL4-6A, and CBW57-ES-6A share identical electrical specifications (6A, 250V AC, 50V DC) and mechanical characteristics (thermal, push to reset, panel mount, single pole). Differences between these part numbers relate to connector or terminal configurations not specified in the provided parameters.

Q: Do substitute parts carry the same certifications as the primary part?

A: Substitute parts carry UL 1077 and UL 1500 certifications matching the primary part. Additional certifications on substitute parts include cURus, IP 40, and SAE J1171. The primary part includes CE and TUV certifications not listed for substitutes in the provided data.

Q: What is the significance of the DC voltage rating difference?

A: The primary part is rated 32V DC while substitutes are rated 50V DC. In circuit breaker applications, a higher DC voltage rating indicates the component can safely interrupt circuits at higher DC voltages. Substituting a 50V DC rated breaker into a 32V DC application operates within the component's safe operating envelope.

Q: Are all parts RoHS3 compliant?

A: Yes. The primary part CLBA-063-NNFNN-B-A and all three substitute parts (CBW57-EJ-6A, CBW57-EL4-6A, CBW57-ES-6A) are ROHS3 compliant with REACH unaffected status.

Q: Can I select any of the three OptiFuse substitutes based on availability?

A: Yes. From an electrical and mechanical standpoint, all three OptiFuse CBW57 variants are equivalent substitutes. Selection can be based on inventory availability, lead time, and packaging requirements.