Circuit Breaker Thermal Magnetic 30A 480V 65V DIN Rail - SCHURTER 4420.021

Part Overview

The SCHURTER 4420.021 is a three-pole thermal magnetic circuit breaker rated for 30A at 480V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, making identification of equivalent substitute parts essential for system maintenance, repair, and replacement applications. The obsolete status necessitates sourcing alternative components that maintain identical electrical and mechanical specifications to ensure seamless integration into existing installations.

Substiute Parts

4420.021

SCHURTER Inc.In Stock: 7484420.021 Datasheet

Current PartRFQ

4420.0287

SCHURTER Inc.In Stock: 8984420.0287 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4420.021 is determined by strict equivalence across the following critical parameters:

• Current Rating: 30A
• Voltage Rating - AC: 480V
• Voltage Rating - DC: 65V
• Breaker Type: Thermal Magnetic
• Number of Poles: 3
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Series: AS168XAC3
• Regulatory Compliance: CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, UL508

The substitute part 4420.0287 maintains identical electrical ratings, mechanical configuration, and regulatory certifications, qualifying it as a parametric equivalent for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 4420.0287 is a direct parametric equivalent to the 4420.021 for replacement applications. Both components are classified as obsolete and maintain identical electrical specifications, mechanical configuration, and regulatory certifications across all major approval agencies including UL, CSA, EN, GB, and IEC standards.

The primary distinction between the two parts is packaging format: the 4420.021 is supplied with unspecified packaging, while the 4420.0287 is supplied in bulk packaging. This packaging difference does not affect electrical or mechanical compatibility and does not impact functional performance in circuit protection applications.

Selection between these equivalent parts should be based on packaging requirements and inventory availability rather than technical performance criteria, as both components satisfy identical operational and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 4420.0287 be used as a direct replacement for the 4420.021?

A: Yes. The 4420.0287 is a parametric equivalent with identical current rating (30A), voltage ratings (480V AC, 65V DC), breaker type (thermal magnetic), pole configuration (3-pole), mounting method (DIN rail), and regulatory certifications. Direct substitution is supported for all applications where the 4420.021 was originally specified.

Q: Are there any compatibility concerns when substituting the 4420.0287 for the 4420.021?

A: No compatibility concerns exist. Both components are from the same manufacturer series (AS168XAC3), share identical mechanical dimensions for DIN rail mounting, and carry the same regulatory approvals. The components are mechanically and electrically interchangeable.

Q: What is the difference between the 4420.021 and 4420.0287?

A: The components are electrically and mechanically identical. The only documented difference is packaging format: the 4420.021 uses unspecified packaging while the 4420.0287 uses bulk packaging. This distinction affects procurement and handling but not component performance.

Q: Why are both parts classified as obsolete?

A: Both the 4420.021 and 4420.0287 are obsolete products from SCHURTER Inc. Obsolete status indicates these components are no longer in active production. Existing inventory remains available for replacement and maintenance applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the 4420.021 and 4420.0287 are ROHS3 compliant and meet environmental regulatory requirements for electronic component manufacturing and distribution.

Q: What regulatory certifications apply to both parts?

A: Both components carry identical certifications: CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508. These certifications cover North American, European, and international safety standards for circuit protection devices.