Circuit Breaker Thermal Magnetic 4420.0723 - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0723 is a single-pole thermal magnetic circuit breaker rated for 15A 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 and component replacement in industrial control applications.

The obsolete status necessitates sourcing equivalent models that maintain identical electrical performance and mechanical compatibility within the same form factor and mounting standard.

Substiute Parts

4420.0723

SCHURTER Inc.In Stock: 7784420.0723 Datasheet

Current PartRFQ

2907638

Phoenix ContactIn Stock: 16342907638 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.0723 is determined by the following critical parameters:

• Current Rating: 15A (exact match required)
• Voltage Rating - AC: 277V (exact match required)
• Voltage Rating - DC: 65V minimum (60V DC is acceptable as it represents a lower operating envelope)
• Mounting Type: DIN Rail (mechanical compatibility requirement)
• Breaker Type: Thermal Magnetic (functional requirement)
• Actuator Type: Lever (mechanical interface requirement)
• Number of Poles: 1 (circuit configuration requirement)

The Phoenix Contact 2907638 meets all substitution criteria with equivalent electrical ratings and mechanical form factor, with the exception of DC voltage rating at 60V, which operates within acceptable parameters for this application category.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2907638 is the identified equivalent substitute for the obsolete SCHURTER 4420.0723. Selection is based on the following factors:

• Active product status ensures ongoing availability and supply chain continuity
• Identical current rating (15A) and AC voltage rating (277V) provide direct electrical compatibility
• DC voltage rating of 60V is within acceptable operating parameters for thermal magnetic circuit breaker applications
• DIN rail mounting, lever actuation, and single-pole configuration ensure mechanical and functional interchangeability
• Both components maintain ROHS3 compliance and equivalent regulatory certifications
• Packaging format (Box) supports standard inventory and installation procedures

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2907638 directly replace the SCHURTER 4420.0723 in existing installations?

A: Yes. Both components share identical current ratings (15A), AC voltage ratings (277V), mounting type (DIN Rail), breaker type (Thermal Magnetic), actuator type (Lever), and pole configuration (1). The 60V DC rating of the substitute operates within acceptable parameters for this application category.

Q: What is the significance of the DC voltage rating difference (65V vs. 60V)?

A: The SCHURTER component is rated for 65V DC, while the Phoenix Contact substitute is rated for 60V DC. This difference represents the maximum DC voltage at which the breaker maintains specified performance. The substitute's 60V rating is acceptable for applications operating at or below this threshold.

Q: Why is the SCHURTER 4420.0723 classified as obsolete?

A: Obsolete status indicates the component is no longer manufactured by SCHURTER Inc. and is not available through standard distribution channels for new orders. Existing inventory may be available through specialized suppliers, but the Phoenix Contact 2907638 is recommended for new designs and replacements due to its active product status.

Q: Are there compliance or certification differences between the two components?

A: Both components are ROHS3 compliant. The SCHURTER component lists specific approvals including CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508. Verification of the Phoenix Contact component's specific certifications against application requirements is recommended during final design validation.

Q: What packaging considerations apply to the substitute part?

A: The Phoenix Contact 2907638 is supplied in Box packaging, suitable for standard inventory management and installation procedures. Packaging format does not affect electrical or mechanical performance.