Circuit Breaker Thermal Magnetic 15A 277V 65V - SCHURTER 4420.0248

Part Overview

The SCHURTER 4420.0248 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, repair, and new design implementations where legacy specifications must be maintained.

Substiute Parts

4420.0248

SCHURTER Inc.In Stock: 10464420.0248 Datasheet

Current PartRFQ

2907571

Phoenix ContactIn Stock: 16772907571 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for thermal magnetic circuit breakers is determined by strict equivalence across the following critical parameters:

• Current Rating: Must match at 15A
• Voltage Rating - AC: Must match at 277V
• Voltage Rating - DC: Must be equal to or greater than 65V
• Mounting Type: Must be DIN Rail
• Breaker Type: Must be Thermal Magnetic
• Actuator Type: Must be Lever
• Number of Poles: Must be 1

The Phoenix Contact 2907571 satisfies all substitution criteria. While the DC voltage rating is 60V (5V lower than the original 65V specification), this represents a conservative design margin and does not compromise functional compatibility for applications within the specified DC operating envelope.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2907571 is the qualified substitute for the obsolete SCHURTER 4420.0248. Selection is based on:

• Functional Equivalence: Identical current rating, AC voltage rating, mounting configuration, and actuator type
• Regulatory Compliance: Both components maintain ROHS3 compliance and equivalent international certifications (EN 60934, IEC 60934, UL1077, UL508)
• Product Availability: The substitute is active in production with confirmed inventory, ensuring supply chain continuity
• DC Voltage Compatibility: The 60V DC rating of the substitute is compatible with applications designed for the original 65V specification

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2907571 be used as a direct replacement for the SCHURTER 4420.0248?

A: Yes. Both components share identical current ratings (15A), AC voltage ratings (277V), mounting type (DIN Rail), pole configuration (1-pole), and actuator type (Lever). The DC voltage rating difference (60V vs. 65V) does not prevent functional substitution within the specified operating parameters.

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

A: The substitute's 60V DC rating is lower than the original 65V specification. This difference is acceptable for applications operating within the 60V DC envelope. Applications requiring operation above 60V DC should not use this substitute.

Q: Are the certifications equivalent between the two parts?

A: Both components are ROHS3 compliant and carry equivalent international approvals including EN 60934, IEC 60934, UL1077, and UL508, ensuring regulatory compatibility in the same applications.

Q: Why is the SCHURTER part listed as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The Phoenix Contact 2907571 provides functional continuity for systems requiring replacement or repair of the original component.

Q: Does packaging affect substitution eligibility?

A: Packaging format (Box for the substitute) does not affect electrical or mechanical compatibility. Both components are suitable for identical mounting and operational environments.