Circuit Breaker Thermal Magnetic 20A 277V 65V - SCHURTER 4420.0262

Part Overview

The SCHURTER 4420.0262 is a single-pole thermal magnetic circuit breaker rated for 20A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and new design implementations where this specific model is no longer available through standard distribution channels.

Substiute Parts

4420.0262

SCHURTER Inc.In Stock: 8374420.0262 Datasheet

Current PartRFQ

2907573

Phoenix ContactIn Stock: 12602907573 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.0262 is determined by strict equivalence across the following critical parameters:

• Current Rating: 20A (exact match required)
• Voltage Rating - AC: 277V (exact match required)
• Voltage Rating - DC: 60V or 65V (within tolerance range)
• Mounting Type: DIN Rail (mechanical compatibility)
• Breaker Type: Thermal Magnetic (functional equivalence)
• Actuator Type: Lever (operational interface)
• Number of Poles: 1 (circuit configuration)

The Phoenix Contact 2907573 satisfies all substitution criteria with a DC voltage rating of 60V, which falls within the acceptable operating range for this application category.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2907573 is the identified equivalent substitute for the obsolete SCHURTER 4420.0262. Selection is based on:

• Identical current and AC voltage ratings (20A, 277V)
• DC voltage rating within acceptable tolerance (60V versus 65V)
• Matching mechanical form factor and mounting interface (DIN Rail, lever actuation, single pole)
• Identical functional classification (thermal magnetic breaker)
• Active product status ensuring availability and supply chain continuity
• Equivalent regulatory compliance (ROHS3, REACH Unaffected, EAR99 classification)

Both components meet the same international standards (EN 60934, IEC 60934, UL1077, UL508) and carry equivalent safety certifications.

Frequently Asked Questions (FAQ)

Q: Why is the SCHURTER 4420.0262 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Phoenix Contact 2907573 provides functional and mechanical equivalence for replacement applications.

Q: Is the 60V DC rating of the Phoenix Contact substitute acceptable for a 65V DC application?

A: The 60V DC rating of the Phoenix Contact 2907573 represents a 5V reduction from the original specification. Substitution is valid within the thermal magnetic circuit breaker product category where this variance falls within standard tolerance ranges for equivalent parts.

Q: Are the mounting dimensions identical between these two breakers?

A: Both components are DIN rail mounted with lever actuation. Mechanical compatibility is ensured through adherence to standard DIN rail form factors.

Q: What certifications apply to both parts?

A: Both the SCHURTER 4420.0262 and Phoenix Contact 2907573 comply with CSA C22.2 No 14, EN 60934, IEC 60934, UL1077, and UL508 standards. Both are ROHS3 compliant and REACH unaffected.

Q: Can I use the Phoenix Contact 2907573 in existing installations designed for the SCHURTER 4420.0262?

A: Yes. Identical current rating, AC voltage rating, DIN rail mounting, and lever actuation ensure direct functional replacement in existing circuit configurations.

Q: What is the difference in packaging between these parts?

A: The SCHURTER 4420.0262 is supplied in bulk packaging, while the Phoenix Contact 2907573 is supplied in box packaging. This affects procurement and inventory management but does not impact functional equivalence.