Circuit Breaker Thermal Magnetic 40A SCHURTER 4420.053

Part Overview

The SCHURTER 4420.053 is a single-pole thermal magnetic circuit breaker rated for 40A at 180 V DC with lever actuation and DIN rail mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for system maintenance, repair, and new design implementations where DC voltage protection at this rating is required.

Substiute Parts

4420.053

SCHURTER Inc.In Stock: 8364420.053 Datasheet

Current PartRFQ

2907645

Phoenix ContactIn Stock: 12922907645 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.053 is determined by the following critical parameters:

• Current Rating: 40A (exact match required)
• Breaker Type: Thermal Magnetic (functional equivalence)
• Mounting Type: DIN Rail (form factor requirement)
• Number of Poles: 1 (circuit configuration)
• Actuator Type: Lever (operational interface)
• Voltage Rating - DC: Minimum 180 V DC capability

The Phoenix Contact 2907645 qualifies as a substitute based on matching current rating (40A), breaker type (thermal magnetic), mounting configuration (DIN rail), pole count (1), and actuator type (lever). While the substitute provides 125 V DC rating rather than 180 V DC, it also provides 240 V AC capability, expanding the operational envelope for AC applications.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2907645 serves as an active substitute for the obsolete SCHURTER 4420.053 in applications requiring 40A thermal magnetic protection with DIN rail mounting and lever actuation. Both components maintain ROHS3 compliance and equivalent regulatory standing.

Selection of the Phoenix Contact alternative is appropriate for new installations and maintenance scenarios where the 125 V DC rating of the substitute is compatible with system voltage requirements. The substitute's 240 V AC rating provides additional operational flexibility for dual-voltage systems.

For applications requiring the original 180 V DC specification, component selection must be evaluated against available alternatives meeting that exact voltage threshold.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2907645 directly replace the SCHURTER 4420.053 in all applications?

A: Direct replacement is valid for applications operating at or below 125 V DC. Applications requiring the original 180 V DC rating require evaluation of alternative components meeting that specification.

Q: What are the critical matching parameters for this substitution?

A: Current rating (40A), breaker type (thermal magnetic), mounting configuration (DIN rail), pole count (1), and actuator type (lever) must match. Voltage rating compatibility must be confirmed for the specific application.

Q: Are both components compliant with the same regulatory standards?

A: Both components are ROHS3 compliant. The SCHURTER component carries CSA, EN, GB, IEC, and UL approvals. Regulatory compliance for the Phoenix Contact component should be verified against specific application requirements.

Q: What is the packaging difference between these components?

A: The SCHURTER 4420.053 is supplied in bulk packaging, while the Phoenix Contact 2907645 is supplied in box packaging. This affects inventory management and handling procedures but does not impact functional performance.

Q: Why is the SCHURTER component listed as obsolete?

A: Obsolete status indicates the component is no longer manufactured by SCHURTER Inc. The Phoenix Contact 2907645, classified as active, represents a current production alternative.