Circuit Breaker SCHURTER 4420.0512 - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0512 is a thermal magnetic circuit breaker rated for 10A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This single-pole breaker is certified to multiple international standards including UL1077, IEC 60934, and CSA C22.2 specifications. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and replacement applications where continued operation is required.

Substiute Parts

4420.0512

SCHURTER Inc.In Stock: 7684420.0512 Datasheet

Current PartRFQ

0914701

Phoenix ContactIn Stock: 10990914701 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4420.0512 is determined by the following critical parameters:

• Current Rating: Must be 10A
• Breaker Type: Must be thermal magnetic
• Mounting Type: Must be DIN rail compatible
• Actuator Type: Must be lever-operated
• Number of Poles: Must be single-pole (1P)
• Voltage Ratings: AC voltage must support 277V operation; DC voltage must support 65V operation
• Mechanical Compatibility: Physical dimensions and DIN rail engagement must be compatible with existing installations

The Phoenix Contact 0914701 meets these substitution criteria with matching current rating, breaker type, mounting configuration, and actuator design. The AC voltage rating of 250V on the substitute part represents a lower maximum rating than the original 277V specification, requiring verification that the actual operating voltage in the application does not exceed 250V AC.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 0914701 is the identified equivalent substitute for the obsolete SCHURTER 4420.0512 based on matching electrical and mechanical specifications. The substitute part is currently in active production status, ensuring availability for replacement applications.

The primary consideration for substitution is the AC voltage rating differential: the SCHURTER original is rated to 277V AC, while the Phoenix Contact substitute is rated to 250V AC. Selection of the Phoenix Contact 0914701 is appropriate only when the actual system operating voltage does not exceed 250V AC. Both parts maintain identical DC voltage ratings of 65V and identical current ratings of 10A.

Both parts carry ROHS3 compliance certification. The substitute part carries REACH Affected status, whereas the original part is REACH Unaffected. Regulatory compliance verification may be required depending on end-use application and regional requirements.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 0914701 directly replace the SCHURTER 4420.0512 in all applications?

A: Direct replacement is possible only when the system operating voltage does not exceed 250V AC. If the application operates at 277V AC, the substitute part's lower voltage rating makes it unsuitable. DC voltage and current ratings are identical between both parts.

Q: What are the key electrical parameters that determine substitution compatibility?

A: The critical parameters are current rating (10A), voltage ratings (AC and DC), breaker type (thermal magnetic), and pole configuration (single-pole). Both parts match on all these parameters except for the AC voltage rating, where the substitute is rated 27V lower.

Q: Are there mechanical compatibility concerns with DIN rail mounting?

A: Both parts are designed for DIN rail mounting with lever actuation. Mechanical compatibility is established based on the matching mounting type and actuator design. Physical dimensions should be verified against installation space constraints.

Q: What is the significance of the product status difference?

A: The SCHURTER 4420.0512 is obsolete and no longer manufactured, making the active production status of the Phoenix Contact 0914701 significant for long-term availability and supply chain continuity.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant. The Phoenix Contact substitute carries REACH Affected designation, while the original is REACH Unaffected. Compliance requirements should be evaluated based on the specific application and regional regulations.