Circuit Breaker SCHURTER 4420.0481 Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0481 is a thermal magnetic circuit breaker rated for 40A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, making equivalent and substitute parts necessary for system maintenance, repair, and new installations where the original part is no longer available from primary sources.

Substiute Parts

4420.0481

SCHURTER Inc.In Stock: 7724420.0481 Datasheet

Current PartRFQ

4420.053

SCHURTER Inc.In Stock: 8364420.053 Datasheet

DirectRFQ

1019989

Phoenix ContactIn Stock: 7031019989 Datasheet

SimilarRFQ

2907645

Phoenix ContactIn Stock: 12922907645 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4420.0481 is determined by the following critical parameters:

• Current Rating: 40A (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Actuator Type: Lever (exact match required)
• Number of Poles: 1 (exact match required)
• Voltage Rating - AC: 277V or higher
• Voltage Rating - DC: 65V or higher

The substitute parts listed below meet these criteria. Voltage ratings in substitute parts exceed the original specification, providing compatibility for the intended application while maintaining thermal magnetic protection characteristics and DIN rail form factor.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the SCHURTER 4420.0481, the following selection criteria apply:

Direct Manufacturer Substitute: SCHURTER 4420.053 maintains manufacturer continuity within the SCHURTER product line. This part is also obsolete but shares identical current rating, mounting, and actuation characteristics. The DC voltage rating of 180V exceeds the original 65V specification.

Cross-Manufacturer Alternatives: Phoenix Contact 1019989 (TMC 7 series) and Phoenix Contact 2907645 (TMC 8 series) are active products meeting all critical substitution parameters. Both are ROHS3 compliant and REACH unaffected. Phoenix Contact 1019989 matches the AC voltage rating of 277V with a 60V DC rating. Phoenix Contact 2907645 provides 240V AC and 125V DC ratings, both exceeding original specifications.

Selection between substitute parts should be based on application voltage requirements, availability, and supply chain considerations. All listed substitutes maintain thermal magnetic protection and DIN rail compatibility.

Frequently Asked Questions (FAQ)

Q: Can SCHURTER 4420.053 be used as a direct replacement for SCHURTER 4420.0481?

A: Yes. Both parts share identical current rating (40A), mounting type (DIN Rail), breaker type (Thermal Magnetic), actuator type (Lever), and pole configuration (1 pole). The DC voltage rating difference (180V vs. 65V) does not prevent substitution; the higher rating provides compatibility.

Q: What is the primary difference between the SCHURTER and Phoenix Contact options?

A: SCHURTER 4420.053 maintains manufacturer continuity. Phoenix Contact 1019989 and 2907645 are cross-manufacturer alternatives with active product status, ensuring ongoing availability and support.

Q: Are Phoenix Contact 1019989 and 2907645 interchangeable with each other?

A: Both meet the substitution criteria for SCHURTER 4420.0481. Selection depends on application voltage requirements: 1019989 provides 277V AC / 60V DC, while 2907645 provides 240V AC / 125V DC.

Q: Do all substitute parts meet compliance requirements?

A: Yes. All listed substitutes are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status.

Q: What packaging formats are available?

A: SCHURTER 4420.053 is supplied in Bulk packaging. Phoenix Contact 1019989 and 2907645 are supplied in Box packaging.