Circuit Breaker Thermal Magnetic 4420.0514 - Equivalent & Substitute Parts

Part Overview

The SCHURTER 4420.0514 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 equivalent and substitute parts essential for system maintenance and replacement applications. The part carries multiple international approvals including UL1077, UL508, IEC 60934, and CSA certifications, ensuring compliance with industrial safety standards.

Substiute Parts

4420.0514

SCHURTER Inc.In Stock: 9144420.0514 Datasheet

Current PartRFQ

4420.0262

SCHURTER Inc.In Stock: 8374420.0262 Datasheet

Parametric EquivalentRFQ

0915470

Phoenix ContactIn Stock: 8350915470 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for thermal magnetic circuit breakers is determined by matching the following critical parameters: current rating (20A), voltage ratings (277V AC / 65V DC), mounting type (DIN rail), actuator type (lever), pole configuration (single-pole), and breaker technology (thermal magnetic). Parts meeting all these criteria are classified as parametric equivalents. Parts with minor voltage deviations while maintaining the same current rating and core functionality are classified as similar alternatives.

The substitute parts identified for 4420.0514 are grouped as follows:

Parametric Equivalent: 4420.0262 (SCHURTER Inc.) — identical electrical and mechanical specifications within the same series.

Similar Alternative: 0915470 (Phoenix Contact) — matches current rating, DC voltage, mounting, and actuation, with AC voltage rated at 250V instead of 277V.

Parameter Comparison

Engineering Selection Recommendations

4420.0262 is the direct parametric equivalent and preferred substitute for 4420.0514. Both parts are manufactured by SCHURTER Inc., belong to the AS168XAC1 series, and carry identical electrical and mechanical specifications. Both are obsolete, indicating similar lifecycle status. Selection of 4420.0262 requires no application re-evaluation.

0915470 (Phoenix Contact TMC series) is a functional alternative suitable for applications where the AC voltage requirement does not exceed 250V. This part is currently active in production, providing supply chain advantage over the obsolete SCHURTER options. The 27V reduction in AC voltage rating (277V to 250V) must be evaluated against system design margins. All three parts maintain identical current ratings, DC voltage ratings, mounting configurations, and lever actuation, ensuring mechanical and thermal compatibility.

Frequently Asked Questions (FAQ)

Q: Can 4420.0262 be used as a direct replacement for 4420.0514?

A: Yes. Both parts are parametric equivalents with identical current ratings (20A), voltage ratings (277V AC / 65V DC), mounting type (DIN rail), actuator type (lever), and pole configuration (single-pole). No application modifications are required.

Q: What is the key difference between 4420.0262 and 0915470?

A: The primary difference is AC voltage rating: 4420.0262 is rated for 277V AC, while 0915470 is rated for 250V AC. Both maintain 20A current rating and 65V DC rating. Additionally, 0915470 is manufactured by Phoenix Contact and is currently active in production, whereas both SCHURTER parts are obsolete.

Q: Can 0915470 be used in a 277V AC application?

A: No. The 0915470 is rated for 250V AC maximum. Using it in a 277V AC circuit exceeds its voltage specification and is not permitted.

Q: Are all three parts RoHS3 compliant?

A: Yes. All three parts meet ROHS3 compliance requirements.

Q: What is the packaging difference between the main part and substitutes?

A: The main part 4420.0514 is packaged as individual units (indicated by "-" in packaging field). Both substitute parts 4420.0262 and 0915470 are supplied in bulk packaging.