Phoenix Contact 2794929 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2794929 is a feed-through terminal block connector designed for 3-position applications with 2-level configuration. This component operates at 30A (UL) and 60V (UL) with wire gauge compatibility of 10-26 AWG (0.2-4mm²). The unit features screw termination, integrated varistor protection, and polyamide insulation rated UL94 V-2.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain system functionality and ensure continued availability for new designs or replacement applications.

Substiute Parts

2794929

Phoenix ContactIn Stock: 9532794929 Datasheet

Current PartRFQ

2906839

Phoenix ContactIn Stock: 7482906839 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 2906839 is classified as a Transient Voltage Suppressor (TVS) module rather than a direct terminal block replacement. This part shares the following critical parameters with the main part:

• Manufacturer: Phoenix Contact
• RoHS Compliance: Both parts are RoHS compliant
• Voltage Operating Range: Main part operates at 60V (UL); substitute part has continuous operating voltage of 75VDC maximum
• Protection Function: Both components incorporate transient voltage suppression capability (main part includes integrated varistor; substitute part is dedicated TVS module)
• Approval Agencies: Both parts carry UL certification

The substitution relationship is based on functional voltage protection compatibility within the specified operating envelope. The substitute part operates as a dedicated circuit protection device suitable for applications requiring enhanced transient suppression beyond the integrated varistor of the main part.

Parameter Comparison

Engineering Selection Recommendations

Selection between the main part 2794929 and substitute 2906839 must account for functional differences and application requirements:

The main part 2794929 is a terminal block with integrated varistor protection, serving dual functions as both a connection interface and transient suppression device. Its obsolete status necessitates alternative sourcing.

The substitute part 2906839 is a dedicated TVS module designed for DIN rail mounting. This part provides enhanced transient voltage suppression capability and carries active product status from Phoenix Contact. The voltage compatibility (75VDC maximum continuous operating voltage versus 60V UL rating of main part) permits operation within the main part's specified envelope.

Both parts maintain RoHS compliance and UL certification, satisfying regulatory requirements. The substitute part's active status ensures long-term availability and supply chain continuity.

Application-specific factors including mounting configuration, circuit topology, and protection level requirements must be evaluated to determine suitability for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can part 2906839 directly replace 2794929 in existing designs?

A: Part 2906839 is a dedicated TVS module, not a terminal block connector. Direct mechanical and electrical substitution requires circuit redesign. The substitute part provides transient voltage suppression functionality compatible with the main part's voltage operating range but serves a different primary function.

Q: What is the voltage compatibility between these parts?

A: The main part 2794929 operates at 60V (UL rating). The substitute part 2906839 has a maximum continuous operating voltage of 75VDC, which encompasses the main part's voltage specification. Both parts are suitable for applications within this voltage envelope.

Q: Are both parts RoHS compliant?

A: Yes. Both 2794929 and 2906839 are RoHS compliant and carry UL certification, meeting regulatory requirements for electronic component applications.

Q: Why is the main part listed as obsolete?

A: Product 2794929 is classified as obsolete by Phoenix Contact. The substitute part 2906839 maintains active product status, ensuring continued availability and manufacturer support.

Q: What are the key differences in packaging and mounting?

A: The main part 2794929 is a screw-terminal block connector. The substitute part 2906839 is a module-form TVS device designed for DIN rail mounting. These represent different form factors and installation methods.

Q: Can the substitute part provide the same connection interface as the main part?

A: No. The main part provides a 3-position, 2-level screw terminal interface. The substitute part is a circuit protection module without terminal block functionality. System integration requires additional terminal block components if connection interface is required.