SCHURTER 4420.0667 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0667 is a thermal magnetic circuit breaker rated for 25A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, making identification of equivalent and substitute parts essential for system maintenance and replacement applications. The part carries multiple international approvals including UL1077, UL508, IEC 60934, and CSA certifications, ensuring compliance with industrial safety standards.

Substiute Parts

4420.0667

SCHURTER Inc.In Stock: 8354420.0667 Datasheet

Current PartRFQ

4420.0232

SCHURTER Inc.In Stock: 7824420.0232 Datasheet

Parametric EquivalentRFQ

2907574

Phoenix ContactIn Stock: 24332907574 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 4420.0667 are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

• Current Rating: 25A (exact match required)
• Voltage Rating - AC: 277V (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Actuator Type: Lever (exact match required)
• Number of Poles: 1 (exact match required)

Two substitute parts meet these core criteria. The parametric equivalent maintains identical DC voltage rating (65V), while the similar substitute operates at a reduced DC voltage rating (60V DC instead of 65V DC). Both alternatives provide the same AC voltage and current specifications required for direct functional replacement in 277V AC applications.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 4420.0232 serves as the primary parametric equivalent, offering identical electrical specifications across all critical parameters including current rating, AC voltage, DC voltage, and mechanical configuration. Both SCHURTER components are obsolete but maintain full compliance with ROHS3 standards and carry equivalent international certifications (CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL508).

The Phoenix Contact 2907574 (TMC 8 series) represents an active product alternative with identical AC voltage and current ratings. This component operates at 60V DC rather than 65V DC, representing a 5V reduction in maximum DC voltage capability. The Phoenix Contact part maintains ROHS3 compliance and active product status, providing long-term availability assurance compared to obsolete SCHURTER alternatives.

Selection between the SCHURTER 4420.0232 and Phoenix Contact 2907574 depends on application DC voltage requirements. Applications operating exclusively at or below 60V DC can utilize either substitute. Applications requiring the full 65V DC rating must use the SCHURTER 4420.0232.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2907574 replace the SCHURTER 4420.0667 in all applications?

A: The Phoenix Contact 2907574 provides functional equivalence for 277V AC applications. However, the reduced DC voltage rating (60V versus 65V) limits its use to systems operating at 60V DC or below. Verify your application's maximum DC voltage requirement before selection.

Q: What is the difference between the SCHURTER 4420.0667 and SCHURTER 4420.0232?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary difference is series designation (AS168X versus AS168XAC1) and packaging format. Both are obsolete products with equivalent certifications.

Q: Why is the SCHURTER 4420.0667 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SCHURTER 4420.0232 and Phoenix Contact 2907574 are identified as substitutes to support ongoing system maintenance and replacement requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The SCHURTER 4420.0232 and Phoenix Contact 2907574 both maintain ROHS3 compliance, matching the environmental standards of the original SCHURTER 4420.0667.

Q: What certifications apply to these circuit breakers?

A: The SCHURTER components carry CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508 approvals. The Phoenix Contact 2907574 maintains ROHS3 compliance and REACH unaffected status.

Q: Does packaging format affect electrical performance?

A: No. Packaging differences (bulk versus box) do not affect electrical specifications or functional performance. Selection should be based on procurement and inventory requirements.