Phoenix Contact 1019978 Circuit Breaker 7A Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1019978 is a thermal magnetic circuit breaker rated at 7A with 277V AC and 60V DC voltage ratings. This single-pole DIN rail mounted breaker features lever actuation and is part of the TMC 7 series. The product is currently active and in stock with 861 units available. Circuit breakers of this specification are essential components in electrical distribution systems where overcurrent protection and thermal-magnetic trip characteristics are required for reliable system operation.

Substiute Parts

1019978

Phoenix ContactIn Stock: 9451019978 Datasheet

Current PartRFQ

1019914

Phoenix ContactIn Stock: 10861019914 Datasheet

Parametric EquivalentRFQ

1020043

Phoenix ContactIn Stock: 8761020043 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for Phoenix Contact 1019978 is determined by strict equivalence across the following critical parameters:

• Current Rating: 7A
• Voltage Rating - AC: 277V
• Voltage Rating - DC: 60V
• Breaker Type: Thermal Magnetic
• Mounting Type: DIN Rail
• Number of Poles: 1
• Actuator Type: Lever
• Series: TMC 7

All substitute parts listed maintain identical electrical and mechanical specifications. Substitutes are grouped as parametric equivalents, meaning they perform the same protective function within the same electrical system constraints.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—1019978, 1019914, and 1020043—are active products manufactured by Phoenix Contact and are ROHS3 compliant. Selection between these equivalents may be based on inventory availability and REACH compliance status. Part 1019978 is REACH Affected, while parts 1019914 and 1020043 are REACH Unaffected. For applications subject to REACH regulations, parts 1019914 or 1020043 are appropriate alternatives. All parts carry identical electrical ratings and mechanical specifications, ensuring direct functional interchangeability within the TMC 7 series.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1019914 or 1020043 be used as direct replacements for 1019978?

A: Yes. All three parts are parametric equivalents with identical current ratings (7A), voltage ratings (277V AC / 60V DC), breaker type (thermal magnetic), mounting configuration (DIN rail), pole count (1), and actuator type (lever). They are functionally interchangeable.

Q: What is the difference between these substitute parts?

A: The primary differences are inventory levels and REACH compliance status. Part 1019978 is REACH Affected, while 1019914 and 1020043 are REACH Unaffected. All other electrical and mechanical parameters are identical.

Q: Are these parts compatible with the same DIN rail installation?

A: Yes. All three parts use DIN rail mounting and are designed for the same installation footprint and configuration.

Q: Do all substitute parts have the same RoHS compliance?

A: Yes. All three parts are ROHS3 compliant.

Q: What packaging is used for these circuit breakers?

A: All parts are supplied in box packaging.