Circuit Breaker Thermal Magnetic 500mA 480V 65V DIN Rail - SCHURTER 4420.0591

Part Overview

The SCHURTER 4420.0591 is a thermal magnetic circuit breaker rated for 500mA 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 equivalent alternatives for ongoing system maintenance and new installations. Substitute parts must maintain identical electrical ratings and mechanical compatibility to ensure proper system operation and safety compliance.

Substiute Parts

4420.0591

SCHURTER Inc.In Stock: 11184420.0591 Datasheet

Current PartRFQ

GMB63H2PC0.5

Carlo Gavazzi Inc.In Stock: 1142GMB63H2PC0.5 Datasheet

SimilarRFQ

7940116809

WeidmüllerIn Stock: 11467940116809 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 4420.0591 are qualified based on strict equivalence of the following parameters:

• Current Rating: 500mA (exact match required)
• Voltage Rating - AC: 480V (exact match required)
• Voltage Rating - DC: 65V (exact match required for dual-voltage applications)
• Breaker Type: Thermal Magnetic (functional equivalence)
• Mounting Type: DIN Rail (mechanical compatibility)
• Actuator Type: Lever (operational compatibility)
• Number of Poles: 2 (circuit configuration)

Two substitute parts meet these criteria:

1. Weidmüller 7940116809 - Parametric equivalent with complete electrical and mechanical alignment, including DC voltage rating
2. Carlo Gavazzi GMB63H2PC0.5 - Similar substitute with matching AC voltage and current ratings; DC voltage rating not specified in available data

Parameter Comparison

Engineering Selection Recommendations

Weidmüller 7940116809 is the primary substitute for applications requiring dual-voltage operation (480V AC and 65V DC). This part maintains complete electrical and mechanical equivalence with the obsolete SCHURTER 4420.0591, with active product status ensuring long-term availability and supply chain continuity. Compliance certifications include CSA C22.2 No 235, UL1077, and VDE standards.

Carlo Gavazzi GMB63H2PC0.5 is suitable for applications operating exclusively at 480V AC. While this part matches all specified AC parameters and mechanical requirements, the absence of documented 65V DC rating limits its use to single-voltage AC systems. This substitute carries active product status and ROHS3 compliance.

Both substitutes maintain RoHS and REACH compliance consistent with the original part. Selection should be based on system voltage requirements and certification scope needed for the application.

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 7940116809 be used as a direct replacement for the SCHURTER 4420.0591?

A: Yes. The Weidmüller part matches all critical electrical parameters (500mA, 480V AC, 65V DC), breaker type (thermal magnetic), mounting configuration (DIN rail), and pole count (2-pole). Both parts carry relevant safety certifications.

Q: What is the key difference between the Weidmüller and Carlo Gavazzi substitutes?

A: The Weidmüller 7940116809 includes a 65V DC voltage rating matching the original part, making it suitable for dual-voltage applications. The Carlo Gavazzi GMB63H2PC0.5 does not specify a DC rating and is appropriate for 480V AC applications only.

Q: Are there packaging differences between these parts?

A: Yes. The SCHURTER 4420.0591 is packaged as individual units (-). The Weidmüller 7940116809 is supplied in bulk packaging, while the Carlo Gavazzi GMB63H2PC0.5 is supplied in box packaging. Verify packaging requirements for procurement and inventory management.

Q: Do all three parts carry the same safety certifications?

A: No. The SCHURTER part carries certifications including CSA C22.2 No 14, CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077, and UL508. The Weidmüller part carries CSA C22.2 No 235, UL1077, and VDE. The Carlo Gavazzi part carries CSA C22.2 No 5, IEC 60947-2, and UL489. Verify that the selected substitute meets all certifications required by your application and regulatory jurisdiction.

Q: Why is the SCHURTER 4420.0591 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitutes ensure continued availability for system maintenance and new installations.