Circuit Breaker Thermal 4430.1673 - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4430.1673 is a thermal circuit breaker rated for 20A at 240V AC and 60V DC, featuring a rocker panel mount actuator with red illumination. This component is classified as Active product status and maintains full compliance with international safety standards including CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. The part is ROHS3 compliant and REACH unaffected. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

4430.1673

SCHURTER Inc.In Stock: 7144430.1673 Datasheet

Current PartRFQ

4430.0469

SCHURTER Inc.In Stock: 7244430.0469 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for thermal circuit breakers is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish valid substitution:

• Current Rating: Must match exactly at 20A
• Voltage Rating - AC: Must match exactly at 240V
• Voltage Rating - DC: Must match exactly at 60V
• Breaker Type: Must be Thermal
• Mounting Type: Must be Panel Mount
• Actuator Type: Must be Rocker
• Number of Poles: Must be 2
• Illumination: Must be Red with 220V nominal voltage
• Approval Agencies: Must maintain equivalent certifications (CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077)
• Compliance: Must be ROHS3 compliant and REACH unaffected

The substitute part 4430.0469 meets all specified parameters and belongs to the same TA45 series, establishing it as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the primary part 4430.1673 and the substitute part 4430.0469 are Active status components manufactured by SCHURTER Inc. within the TA45 series. Selection between these parts may be based on inventory availability, as the substitute part currently maintains 685 pieces in stock compared to 671 pieces for the primary part. Both components satisfy identical electrical specifications, mechanical configurations, and regulatory compliance requirements. The parts are interchangeable from an engineering perspective, with no functional or performance differentiation. Procurement decisions should prioritize component availability and lead time considerations.

Frequently Asked Questions (FAQ)

Q: Can 4430.0469 be used as a direct replacement for 4430.1673?

A: Yes. Both parts are parametric equivalents with identical electrical ratings (20A, 240V AC, 60V DC), thermal breaker type, panel mount configuration, rocker actuator, dual-pole design, and red illumination at 220V nominal. Both maintain identical regulatory certifications and compliance status.

Q: Are there any differences in mechanical fit or panel mounting between these parts?

A: No. Both parts share identical mounting type (Panel Mount) and actuator configuration (Rocker), ensuring mechanical compatibility in existing panel designs.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both 4430.1673 and 4430.0469 carry identical approval certifications: CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. Both are ROHS3 compliant and REACH unaffected.

Q: What is the primary reason to consider the substitute part?

A: Supply chain continuity and inventory optimization. The substitute part 4430.0469 provides an equivalent alternative when the primary part experiences supply constraints or extended lead times.

Q: Are there any electrical performance differences between the two parts?

A: No. Both parts are rated identically at 20A continuous current, 240V AC maximum, and 60V DC maximum, with identical thermal trip characteristics and illumination specifications.