Circuit Breaker Thermal Magnetic 7A SCHURTER 4420.0438

Part Overview

The SCHURTER 4420.0438 is a thermal magnetic circuit breaker rated for 7A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing system maintenance and new installations. The obsolete status requires engineers to evaluate functionally equivalent alternatives that maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

4420.0438

SCHURTER Inc.In Stock: 10874420.0438 Datasheet

Current PartRFQ

4420.0317

SCHURTER Inc.In Stock: 10564420.0317 Datasheet

DirectRFQ

1019936

Phoenix ContactIn Stock: 11201019936 Datasheet

SimilarRFQ

4230-T120-K0BE-7A

E-T-AIn Stock: 10104230-T120-K0BE-7A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for thermal magnetic circuit breakers is determined by the following critical parameters:

Primary Compatibility Criteria:

• Current Rating: Must match at 7A
• Breaker Type: Must be Thermal Magnetic
• Mounting Type: Must be DIN Rail
• Actuator Type: Must be Lever
• Number of Poles: Must be 2

Voltage Compatibility Considerations:

• AC Voltage Rating: Substitute must equal or exceed the main part's 277V AC rating
• DC Voltage Rating: Substitute must equal or exceed the main part's 65V DC rating

Regulatory and Compliance Alignment:

• RoHS Status: Substitute must maintain ROHS3 compliance or equivalent
• ECCN and HTSUS classifications must align with export and tariff requirements

The substitute parts listed below satisfy all primary compatibility criteria while meeting or exceeding voltage ratings and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute - SCHURTER 4420.0317: This part maintains manufacturer continuity within the SCHURTER product line and shares identical current rating, DC voltage rating, and pole configuration. The AC voltage rating of 480V exceeds the main part's 277V requirement, providing operational margin. Both parts carry ROHS3 compliance and identical ECCN/HTSUS classifications. This option is suitable for applications where manufacturer consistency is prioritized, though the part is also classified as obsolete.

Active Alternative - Phoenix Contact 1019936: This part is currently in active production status, addressing the obsolescence concern of the main part. It matches the AC voltage rating at 277V and exceeds the DC voltage rating at 125V. The TMC 7 series provides thermal magnetic protection with identical mechanical and electrical interface specifications. RoHS compliance is maintained. This option is appropriate for new designs and long-term supply chain stability.

Active Alternative - E-T-A 4230-T120-K0BE-7A: This part is in active production within the 4230-T series and exceeds both AC (480V) and DC (125V) voltage ratings. ROHS3 compliance and CSA/UL certifications are documented. The higher voltage ratings provide operational flexibility for applications with variable supply conditions. This option supports long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 4420.0317 be used as a direct replacement for the 4420.0438? A: Yes. Both parts share identical current rating (7A), DC voltage rating (65V), pole configuration (2), and mounting specifications. The 4420.0317 provides higher AC voltage capability (480V vs. 277V), which is compatible with the main part's application envelope. Both are ROHS3 compliant.

Q: What is the primary advantage of selecting an active product over the direct substitute? A: Active products ensure long-term supply chain availability and ongoing manufacturer support. The Phoenix Contact 1019936 and E-T-A 4230-T120-K0BE-7A are both in active production, reducing obsolescence risk compared to the direct substitute 4420.0317, which is also classified as obsolete.

Q: Are the voltage ratings interchangeable between substitute options? A: Voltage ratings are not interchangeable in the reverse direction. A substitute with higher voltage ratings (480V AC or 125V DC) can be used in applications designed for lower ratings (277V AC or 65V DC). However, a substitute with lower voltage ratings cannot be used in higher-voltage applications. All listed substitutes meet or exceed the main part's voltage specifications.

Q: Do packaging differences affect electrical or mechanical compatibility? A: Packaging format (Bulk vs. Box) does not affect electrical or mechanical compatibility. Packaging differences relate only to order quantity and logistics. All substitute parts maintain identical DIN rail mounting and lever actuation interfaces.

Q: What compliance certifications should be verified for critical applications? A: The SCHURTER 4420.0317 and E-T-A 4230-T120-K0BE-7A carry documented approval agencies including CSA, UL, and IEC standards. The Phoenix Contact 1019936 carries RoHS compliance. For applications requiring specific regulatory certifications, verify that the selected substitute's approval agency list aligns with system requirements.