Circuit Breaker Thermal Magnetic 6A 480V 65V DIN Rail - SCHURTER 4420.0281

Part Overview

The SCHURTER 4420.0281 is a thermal magnetic circuit breaker rated for 6A 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 alternatives to maintain system continuity and ensure ongoing availability for replacement and new installations.

Substiute Parts

4420.0281

SCHURTER Inc.In Stock: 8284420.0281 Datasheet

Current PartRFQ

7940116816

WeidmüllerIn Stock: 7217940116816 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.0281 is determined by strict equivalence across the following critical parameters: breaker type (thermal magnetic), current rating (6A), AC voltage rating (480V), DC voltage rating (65V), mounting configuration (DIN rail), actuator mechanism (lever), and pole count (2-pole). The Weidmüller 7940116816 satisfies all these requirements, establishing it as a parametric equivalent. Both components share identical electrical specifications and mechanical form factors, enabling direct functional replacement within systems designed for the original SCHURTER part.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 7940116816 is the appropriate substitute for the obsolete SCHURTER 4420.0281. Both components maintain identical electrical and mechanical specifications across all critical parameters. The Weidmüller part carries active product status, ensuring ongoing availability and supply chain reliability. Both components satisfy equivalent regulatory compliance frameworks, with the Weidmüller part certified under CSA C22.2 No 235, UL1077, and VDE standards, while the original SCHURTER part holds CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508 certifications. Environmental compliance is equivalent, with both parts classified as RoHS compliant and REACH unaffected. Selection of the Weidmüller alternative eliminates obsolescence risk while preserving functional and electrical compatibility.

Frequently Asked Questions (FAQ)

Q: What makes the Weidmüller 7940116816 a suitable substitute for the SCHURTER 4420.0281?

A: Both components are thermal magnetic circuit breakers with identical electrical ratings (6A, 480V AC, 65V DC), mechanical configuration (2-pole, lever-actuated, DIN rail mounted), and regulatory compliance status. Parametric equivalence across these specifications enables direct functional replacement.

Q: Are there any differences in certification standards between the two parts?

A: The SCHURTER part holds certifications under CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508. The Weidmüller part is certified under CSA C22.2 No 235, UL1077, and VDE. Both satisfy UL1077 and CSA C22.2 No 235 standards. System designers should verify that the Weidmüller certification profile aligns with application-specific regulatory requirements.

Q: What is the availability status of each part?

A: The SCHURTER 4420.0281 is classified as obsolete with 725 units in stock. The Weidmüller 7940116816 is active with 711 units in stock, providing ongoing supply chain access and long-term availability assurance.

Q: Can these parts be used interchangeably in existing installations?

A: Yes. Identical current ratings, voltage specifications, mounting type, and actuator mechanism enable direct substitution in DIN rail-mounted circuit protection applications designed for the original SCHURTER component.

Q: Are there environmental or compliance considerations for substitution?

A: Both parts are RoHS compliant and REACH unaffected, with identical ECCN (EAR99) and HTSUS (8536.20.0020) classifications. Environmental and trade compliance profiles are equivalent.