Phoenix Contact 0902357 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 0902357 is a thermal-magnetic circuit breaker rated for 4A with a lever actuator, designed for DIN rail mounting. This component is classified as obsolete, making identification of suitable substitute parts essential for system maintenance and component replacement in existing installations.

The obsolete status necessitates sourcing equivalent alternatives that maintain functional compatibility with the original specification while ensuring compliance with current regulatory standards.

Substiute Parts

0902357

Phoenix ContactIn Stock: 8340902357 Datasheet

Current PartRFQ

1020018

Phoenix ContactIn Stock: 12611020018 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute identification for the Phoenix Contact 0902357 is based on the following critical parameters that must align for functional equivalence:

• Current Rating: 4A (exact match required)
• Breaker Type: Thermal Magnetic (functional operation principle)
• Number of Poles: 3 (circuit configuration)
• Actuator Type: Lever (manual operation interface)
• Mounting Type: DIN Rail (physical installation compatibility)
• Manufacturer: Phoenix Contact (series continuity and design compatibility)

The substitute part Phoenix Contact 1020018 satisfies all mandatory electrical and mechanical parameters. This part belongs to the TMC 7 series, representing an active product line evolution from the obsolete TMC series, while maintaining identical functional specifications for the core protection characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1020018 is the qualified substitute for the obsolete 0902357. Both components maintain identical electrical protection characteristics (4A thermal-magnetic operation, 3-pole configuration) and mechanical interface specifications (lever actuator, DIN rail mounting).

The substitute part is classified as active product status, ensuring ongoing availability and manufacturing support. Both components satisfy ROHS3 compliance and REACH unaffected status, confirming regulatory alignment for current applications.

The 1020018 specifies an AC voltage rating of 277 V, providing defined electrical operating parameters for the substitute part. This specification does not restrict substitution compatibility, as the original part's unspecified voltage rating does not indicate lower voltage capability.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1020018 directly replace the 0902357 in existing installations?

A: Yes. Both components share identical current rating (4A), pole configuration (3-pole), breaker type (thermal-magnetic), actuator type (lever), and mounting interface (DIN rail). The 1020018 represents the active product line continuation from the obsolete 0902357 series.

Q: What is the difference between the TMC and TMC 7 series designations?

A: The TMC 7 series represents a product line evolution. The 1020018 (TMC 7 series) is the current manufacturing standard for this protection class, while the 0902357 (TMC series) is obsolete. Both maintain equivalent functional specifications for 4A thermal-magnetic protection.

Q: Are there packaging differences between these parts?

A: The 0902357 is specified with standard packaging, while the 1020018 is supplied in box packaging. Both are suitable for DIN rail installation and do not require different handling procedures.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the 0902357 and 1020018 are ROHS3 compliant and REACH unaffected, satisfying current environmental and regulatory standards.

Q: Is the 277 V AC rating on the 1020018 a limiting factor for substitution?

A: No. The specified 277 V AC rating on the 1020018 defines the component's electrical operating envelope. The original part's unspecified voltage rating does not indicate incompatibility; rather, the substitute provides explicit voltage specification for the same protection class.