SCHURTER 4420.0768 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0768 is a single-pole thermal magnetic circuit breaker rated for 16A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and new installations where legacy specifications must be maintained.

The obsolete status necessitates sourcing equivalent models that preserve the original electrical and mechanical characteristics while ensuring compliance with applicable safety standards.

Substiute Parts

4420.0768

SCHURTER Inc.In Stock: 9524420.0768 Datasheet

Current PartRFQ

2907639

Phoenix ContactIn Stock: 7962907639 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4420.0768 is determined by the following critical parameters:

• Current Rating: 16A (exact match required)
• Voltage Rating - AC: 277V (exact match required)
• Voltage Rating - DC: 60V–65V (tolerance range acceptable)
• Mounting Type: DIN Rail (exact match required)
• Number of Poles: 1 (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Actuator Type: Lever (exact match required)

The Phoenix Contact 2907639 satisfies all substitution criteria, with a DC voltage rating of 60V falling within the acceptable tolerance range relative to the original 65V specification.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2907639 (TMC 8 series) is the qualified substitute for the SCHURTER 4420.0768. Selection is based on:

• Electrical equivalence across all critical parameters (current, AC voltage, and DC voltage within tolerance)
• Identical mechanical form factor and DIN rail compatibility
• Active product status ensuring ongoing availability and supply chain reliability
• ROHS3 compliance alignment with the original component
• Certification compliance with applicable safety standards (UL1077, IEC 60934, EN 60934)

The 5V reduction in DC voltage rating (60V versus 65V) does not compromise functional equivalence in standard industrial applications operating within the 60V DC specification.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2907639 be used as a direct replacement for the SCHURTER 4420.0768?

A: Yes. The Phoenix Contact 2907639 meets all electrical and mechanical substitution criteria, including current rating, AC voltage, DIN rail mounting, pole configuration, and actuator type. The DC voltage rating difference (60V versus 65V) is within acceptable tolerance for equivalent functionality.

Q: What is the significance of the obsolete status of the SCHURTER 4420.0768?

A: Obsolete status indicates the component is no longer manufactured or supported by SCHURTER Inc. The Phoenix Contact 2907639 provides functional continuity with active product status, ensuring long-term availability and supply chain stability.

Q: Are there packaging differences between these components?

A: The SCHURTER 4420.0768 is supplied with standard packaging, while the Phoenix Contact 2907639 is packaged in boxes. Both are suitable for industrial distribution and installation.

Q: Do both components meet the same safety certifications?

A: Both components comply with ROHS3 requirements. The SCHURTER 4420.0768 carries certifications including CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. Verification of Phoenix Contact 2907639 certification alignment with your specific application requirements is recommended during procurement.

Q: What is the inventory status for these components?

A: The SCHURTER 4420.0768 has 909 pieces in stock (new original). The Phoenix Contact 2907639 has 697 pieces in stock (new original), providing immediate availability for replacement applications.