SCHURTER 4420.0432 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0432 is a thermal magnetic circuit breaker rated for 7A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation and three poles. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new installations where this specific model is no longer available from the manufacturer.

Substiute Parts

4420.0432

SCHURTER Inc.In Stock: 9504420.0432 Datasheet

Current PartRFQ

1019957

Phoenix ContactIn Stock: 10771019957 Datasheet

SimilarRFQ

4230-T130-K0BE-7A

E-T-AIn Stock: 10464230-T130-K0BE-7A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4420.0432 is determined by the following critical parameters:

• Current Rating: 7A (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: 3 (exact match required)
• Voltage Rating - AC: 277V minimum (equal or higher acceptable)
• Voltage Rating - DC: 65V minimum (equal or higher acceptable)

Two substitute parts meet these criteria and are identified as functionally equivalent alternatives.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturer support, addressing the obsolescence status of the original SCHURTER component.

Phoenix Contact 1019957 maintains identical AC voltage rating (277V) and matches all core functional parameters. This part is RoHS compliant and carries MSL 1 (Unlimited) rating, indicating robust environmental stability.

E-T-A 4230-T130-K0BE-7A exceeds the original voltage specifications with 480V AC and 125V DC ratings, providing enhanced voltage margin for applications requiring higher voltage tolerance. This part holds CSA C22.2 No 235 and UL489 certifications in addition to ROHS3 compliance, supporting broader regulatory requirements.

Selection between these substitutes depends on application voltage requirements and regulatory certification needs specific to the end-use environment.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1019957 be used as a direct replacement for the SCHURTER 4420.0432?

A: Yes. Both parts share identical current rating (7A), AC voltage rating (277V), mounting type (DIN Rail), breaker type (Thermal Magnetic), actuator type (Lever), and pole count (3). The Phoenix Contact part is an active product with current manufacturer support.

Q: What is the advantage of the E-T-A 4230-T130-K0BE-7A over the Phoenix Contact alternative?

A: The E-T-A part provides higher voltage ratings (480V AC and 125V DC versus 277V AC), offering greater voltage margin in applications with variable or elevated supply voltages. It also includes CSA and UL489 certifications, supporting installations requiring these specific regulatory approvals.

Q: Are there voltage compatibility concerns when substituting these parts?

A: The substitute parts meet or exceed the original 277V AC and 65V DC specifications. Applications operating at or below these voltage levels are compatible with both substitutes. The E-T-A part's higher ratings do not create compatibility issues in lower-voltage applications.

Q: What is the packaging difference between these substitutes?

A: The Phoenix Contact 1019957 is supplied in Box packaging, while the E-T-A 4230-T130-K0BE-7A is supplied in Bulk packaging. Packaging selection depends on procurement and inventory management requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. The SCHURTER original part is ROHS3 compliant, the Phoenix Contact substitute is RoHS compliant, and the E-T-A substitute is ROHS3 compliant. All parts meet current environmental compliance standards.