Circuit Breaker Thermal Magnetic 10A 277V 65V DC - SCHURTER 4420.0261

Part Overview

The SCHURTER 4420.0261 is a single-pole thermal magnetic circuit breaker rated for 10A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new installations. The breaker provides overcurrent protection in industrial control and distribution applications requiring both AC and DC voltage compatibility.

Substiute Parts

4420.0261

SCHURTER Inc.In Stock: 7604420.0261 Datasheet

Current PartRFQ

1D10UL

Altech CorporationIn Stock: 9561D10UL Datasheet

SimilarRFQ

2907566

Phoenix ContactIn Stock: 14812907566 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4420.0261 is determined by the following critical parameters:

• Current Rating: 10A (exact match required)
• Voltage Rating - AC: 277V (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Number of Poles: 1 (exact match required)
• Actuator Type: Lever (exact match required)

The substitute parts identified meet these core electrical and mechanical specifications. Voltage rating for DC operation may vary within acceptable industrial tolerances (60V to 65V DC) provided the application does not exceed the lower rated value.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing support, addressing the obsolescence status of the original SCHURTER component.

The Altech 1D10UL carries cULus and UL489 certifications, providing North American compliance. DC voltage rating is not specified in available documentation; applications requiring confirmed DC operation should reference manufacturer technical specifications.

The Phoenix Contact 2907566 is rated for 60V DC, which is within the operational tolerance of the original 65V DC specification. This part carries ROHS3 compliance and maintains the full thermal magnetic protection profile. The TMC 8 series designation indicates active product line support.

Both parts maintain ROHS3 compliance and EAR99 export classification consistent with the original component.

Frequently Asked Questions (FAQ)

Q: Can the Altech 1D10UL be used in applications requiring DC voltage operation?

A: The Altech 1D10UL specification does not include a DC voltage rating. Applications requiring confirmed DC operation should prioritize the Phoenix Contact 2907566, which is explicitly rated for 60V DC.

Q: Is the Phoenix Contact 2907566 suitable for the original 65V DC application?

A: The Phoenix Contact 2907566 is rated for 60V DC. This is acceptable for applications operating at or below 60V DC. Applications requiring operation above 60V DC should not use this substitute.

Q: Are all substitute parts DIN rail compatible with the original mounting footprint?

A: All identified substitutes are DIN rail mounted single-pole thermal magnetic breakers with lever actuation. Physical mounting compatibility should be confirmed against the specific DIN rail installation requirements of your application.

Q: What certifications apply to each substitute part?

A: The Altech 1D10UL holds CE and cULus certifications. The Phoenix Contact 2907566 maintains compliance with international standards including ROHS3. Both parts are EAR99 classified for export purposes.

Q: Are there inventory considerations for substitute selection?

A: The Phoenix Contact 2907566 has 1405 units in stock, while the Altech 1D10UL has 942 units available. Both represent active product lines with ongoing supply availability.