Circuit Breaker Thermal Magnetic 4420.0395 - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0395 is a thermal magnetic circuit breaker rated for 35A at 480V AC and 65V DC, designed for DIN rail mounting with lever actuation and 2-pole configuration. This component is classified as obsolete, necessitating identification of active equivalent models to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

4420.0395

SCHURTER Inc.In Stock: 11114420.0395 Datasheet

Current PartRFQ

4230-T120-K0CU-35A

E-T-AIn Stock: 7324230-T120-K0CU-35A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.0395 is based on the following critical parameters that must remain constant or compatible:

• Current Rating: 35A (exact match required)
• Voltage Rating - AC: 480V (exact match required)
• Breaker Type: Thermal Magnetic (functional equivalence)
• Mounting Type: DIN Rail (mechanical compatibility)
• Actuator Type: Lever (operational compatibility)
• Number of Poles: 2 (circuit configuration)

The E-T-A 4230-T120-K0CU-35A qualifies as a substitute because it maintains the same current rating, AC voltage rating, breaker type, mounting configuration, actuator type, and pole count. The DC voltage rating differs (125V DC versus 65V DC on the original), which represents an upgrade in DC capability and does not restrict substitution in applications requiring the original specifications.

Parameter Comparison

Engineering Selection Recommendations

The E-T-A 4230-T120-K0CU-35A is the qualified substitute for the obsolete SCHURTER 4420.0395. Selection is supported by the following factors:

• Active product status ensures ongoing availability and supply chain continuity
• Identical current and AC voltage ratings guarantee electrical compatibility
• Thermal magnetic operation maintains the same protection characteristics
• DIN rail mounting and lever actuation provide mechanical and operational equivalence
• ROHS3 compliance on both parts satisfies environmental regulatory requirements
• Enhanced DC voltage rating (125V versus 65V) provides additional capability margin in DC applications

Frequently Asked Questions (FAQ)

Q: Can the E-T-A 4230-T120-K0CU-35A be used as a direct replacement for the SCHURTER 4420.0395?

A: Yes. Both components share identical current ratings (35A), AC voltage ratings (480V), breaker type (thermal magnetic), mounting configuration (DIN rail), actuator type (lever), and pole count (2). The higher DC voltage rating of the E-T-A part (125V versus 65V) does not restrict substitution.

Q: What is the significance of the different DC voltage ratings?

A: The E-T-A substitute has a higher DC voltage rating (125V) compared to the original (65V). This represents an upgrade in DC capability and does not create compatibility issues in applications designed for the original 65V DC specification.

Q: Are there any packaging differences between these parts?

A: The SCHURTER 4420.0395 is packaged as individual units, while the E-T-A 4230-T120-K0CU-35A is supplied in bulk packaging. Both are suitable for component-level integration into DIN rail assemblies.

Q: What certifications apply to the substitute part?

A: The E-T-A 4230-T120-K0CU-35A holds CSA C22.2 No 235 and UL489 approvals. The original SCHURTER part carries a broader certification portfolio including CSA, EN, GB, IEC, and UL standards. Verify that the substitute certifications meet the specific requirements of your application and regional standards.

Q: Why is the SCHURTER 4420.0395 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The E-T-A 4230-T120-K0CU-35A, with active product status, provides continuity for new designs and replacement applications.