Phoenix Contact 1020064 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1020064 is a thermal magnetic circuit breaker rated for 4A with dual voltage capability (277V AC / 125V DC). This DIN rail-mounted device features a lever actuator and is part of the TMC 7 series. The component is currently active in production with ROHS3 compliance and REACH affected status. Substitute parts are identified when they maintain identical electrical specifications and mechanical compatibility within the TMC 7 series platform.

Substiute Parts

1020064

Phoenix ContactIn Stock: 9971020064 Datasheet

Current PartRFQ

1019933

Phoenix ContactIn Stock: 12101019933 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1020064 is determined by strict equivalence across the following critical parameters:

• Current Rating: 4A
• Voltage Rating - AC: 277V
• Voltage Rating - DC: 125V
• Breaker Type: Thermal Magnetic
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Number of Poles: 2
• Series Platform: TMC 7

The substitute part 1019933 maintains identical specifications across all electrical and mechanical parameters, ensuring direct functional interchangeability within the TMC 7 series architecture.

Parameter Comparison

Engineering Selection Recommendations

Both the Phoenix Contact 1020064 and 1019933 are active production components with ROHS3 compliance. The 1020064 carries REACH affected status, while the 1019933 is REACH unaffected. Selection between these parts should account for supply chain requirements and regulatory compliance obligations specific to the end application. Both components share identical electrical ratings, mechanical form factor, and series platform compatibility, making them functionally equivalent for 4A thermal magnetic circuit protection at 277V AC / 125V DC.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1019933 directly replace 1020064 in existing installations?

A: Yes. Both parts are identical across all critical electrical and mechanical parameters: 4A current rating, 277V AC / 125V DC voltage ratings, thermal magnetic operation, lever actuation, 2-pole configuration, and DIN rail mounting within the TMC 7 series.

Q: What is the difference between these two part numbers?

A: The parts are electrically and mechanically equivalent. The primary distinction is REACH regulatory status: 1020064 is REACH affected, while 1019933 is REACH unaffected. Both maintain ROHS3 compliance.

Q: Are there packaging differences between 1020064 and 1019933?

A: Both components are supplied in box packaging. No packaging format differences exist between these substitute parts.

Q: What parameters must remain constant for substitution eligibility?

A: Current rating (4A), AC voltage (277V), DC voltage (125V), breaker type (thermal magnetic), mounting method (DIN rail), actuator style (lever), pole count (2), and series platform (TMC 7) must all remain unchanged for direct substitution.

Q: Can these parts be used in applications requiring different voltage ratings?

A: No. Both 1020064 and 1019933 are rated exclusively for 277V AC and 125V DC operation. Applications requiring different voltage specifications require alternative part selection outside this substitute group.