Phoenix Contact 0902438 Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 0902438 is a thermal-magnetic circuit breaker rated for 40A at 480V AC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, necessitating identification of active equivalent models to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

0902438

Phoenix ContactIn Stock: 8190902438 Datasheet

Current PartRFQ

1020032

Phoenix ContactIn Stock: 8991020032 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 0902438 is determined by the following critical parameters:

• Current Rating: 40A (must match exactly)
• Breaker Type: Thermal Magnetic (must match exactly)
• Number of Poles: 3 (must match exactly)
• Mounting Type: DIN Rail (must match exactly)
• Actuator Type: Lever (must match exactly)
• Voltage Rating - AC: Determines application suitability; lower voltage ratings may be acceptable in lower-voltage circuits but represent a design change

The substitute part Phoenix Contact 1020032 maintains identical specifications for current rating, breaker type, pole configuration, mounting type, and actuator type. The voltage rating differs (277V versus 480V), representing a functional limitation for direct replacement in 480V circuits but establishing compatibility for applications operating at 277V or lower.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1020032 is an active product with current RoHS3 compliance and REACH compliance status, providing regulatory continuity for new designs and ongoing procurement. The primary distinction between the main part and substitute is the voltage rating: the 0902438 operates at 480V AC, while the 1020032 operates at 277V AC.

Selection of the 1020032 as a substitute is appropriate for applications requiring 277V operation. For applications requiring 480V operation, the voltage rating difference represents a functional incompatibility that must be resolved through alternative component sourcing or circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1020032 directly replace the 0902438 in all applications?

A: Direct replacement is limited by voltage rating. The 1020032 is suitable for 277V AC circuits. For 480V AC circuits, the voltage rating difference prevents direct substitution without circuit modification.

Q: What are the critical parameters for circuit breaker substitution?

A: Current rating, breaker type (thermal-magnetic), pole configuration, mounting type (DIN rail), and actuator type (lever) must match exactly. Voltage rating must meet or exceed the application requirement.

Q: Are both parts RoHS compliant?

A: Yes. The 0902438 is RoHS Compliant, and the 1020032 is ROHS3 Compliant, meeting current environmental standards.

Q: What is the difference between the TMC 60 and TMC 7 series?

A: Both are Phoenix Contact thermal-magnetic circuit breaker series. The TMC 60 (0902438) is obsolete, while the TMC 7 (1020032) is active. Series designation reflects product line evolution and manufacturing generation.

Q: Does packaging affect compatibility?

A: Packaging (Box for 1020032 versus unspecified for 0902438) does not affect electrical or mechanical compatibility. Packaging is a logistics consideration only.