Circuit Breaker Thermal Magnetic 4420.0762 - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0762 is a three-pole thermal magnetic circuit breaker rated for 50A at 480V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component belongs to the AS168XAC3 series and carries multiple international approvals including UL1077, UL508, IEC 60934, and CSA certifications. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and replacement applications where continued availability is required.

Substiute Parts

4420.0762

SCHURTER Inc.In Stock: 8334420.0762 Datasheet

Current PartRFQ

3D50UM

Altech CorporationIn Stock: 12053D50UM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.0762 is determined by the following critical parameters that must match or exceed the original specification:

• Current Rating: 50A minimum
• Voltage Rating - AC: 480V minimum
• Mounting Type: DIN Rail
• Breaker Type: Thermal Magnetic
• Actuator Type: Lever
• Number of Poles: 3
• Approval Certifications: UL508 and CSA compliance required

The Altech Corporation 3D50UM meets these core substitution criteria. While the 3D50UM does not specify a DC voltage rating in the provided data, it maintains electrical and mechanical compatibility across all other critical parameters, including current rating, AC voltage rating, mounting configuration, breaker topology, and required safety certifications.

Parameter Comparison

Engineering Selection Recommendations

The Altech 3D50UM (base product 3D50) is the identified equivalent substitute for the obsolete SCHURTER 4420.0762. Selection is based on the following engineering criteria:

• Functional Equivalence: Both components are three-pole, 50A thermal magnetic circuit breakers with lever actuation and DIN rail mounting, designed for 480V AC operation.
• Regulatory Compliance: The 3D50UM carries UL508 and CSA certifications, meeting the primary safety approval requirements for industrial control applications.
• Product Availability: The 3D50UM is currently in active production status with 1190 units in stock, ensuring supply continuity for replacement and new installations.
• Environmental Compliance: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.
• Packaging: The 3D50UM is supplied in bulk packaging, suitable for integration into control panels and switchgear assemblies.

Frequently Asked Questions (FAQ)

Q: Can the Altech 3D50UM directly replace the SCHURTER 4420.0762 in existing installations?

A: Yes. Both components share identical current rating (50A), AC voltage rating (480V), mounting type (DIN rail), pole configuration (3-pole), and actuator type (lever). The 3D50UM carries the required UL508 and CSA certifications for industrial control applications.

Q: What is the difference in DC voltage rating between the two breakers?

A: The SCHURTER 4420.0762 specifies a 65V DC rating. The Altech 3D50UM does not provide a DC voltage specification in the available technical data. For applications requiring DC operation, verify the 3D50UM DC rating against your system requirements.

Q: Why is the SCHURTER 4420.0762 listed as obsolete?

A: Obsolete status indicates the component is no longer manufactured by SCHURTER Inc. The Altech 3D50UM provides functional and electrical equivalence for replacement in active systems.

Q: Are there differences in approval certifications between the two breakers?

A: The SCHURTER 4420.0762 carries additional certifications including UL1077, IEC 60934, GB 17701, and CSA C22.2 standards. The Altech 3D50UM carries UL508 and CSA certifications. For applications requiring specific international standards beyond UL508 and CSA, verify certification requirements against the 3D50UM datasheet.

Q: What packaging format is the Altech 3D50UM supplied in?

A: The 3D50UM is supplied in bulk packaging, suitable for direct integration into control panel assemblies and switchgear installations.