Phoenix Contact 2788090 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2788090 is a feed-through terminal block connector designed for 12-24 AWG wire gauges (0.2-4mm²). This 4-position, 2-level component features screw termination and is constructed from polyamide (PA) nylon material with UL94 V-2 flammability rating. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and component procurement.

Substiute Parts

2788090

Phoenix ContactIn Stock: 9022788090 Datasheet

Current PartRFQ

2906834

Phoenix ContactIn Stock: 11902906834 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 2788090 is listed with substitute part number 2906834. However, a critical incompatibility exists between these components based on provided specifications.

The 2788090 is a terminal block connector designed for wire termination and signal distribution. The 2906834 is classified as a Transient Voltage Suppressor (TVS) module—a circuit protection device with fundamentally different electrical function and mechanical form factor.

Key Parameter Mismatch:

• Main part category: Terminal Blocks (wire connection)
• Substitute part category: Transient Voltage Suppressors (circuit protection)
• Main part mounting: Screw termination for wire gauge 12-24 AWG
• Substitute part mounting: DIN Rail
• Main part function: Feed-through signal distribution
• Substitute part function: Voltage transient suppression

These components cannot serve as direct functional equivalents due to incompatible electrical characteristics, mechanical interfaces, and operational purposes.

Parameter Comparison

Engineering Selection Recommendations

Based on provided specifications, the 2906834 cannot replace the 2788090 in applications requiring terminal block functionality. The listed substitute represents a different product category with incompatible mechanical and electrical characteristics.

For applications currently using the obsolete 2788090, component selection must be based on:

• Required wire gauge compatibility (12-24 AWG / 0.2-4mm²)
• Feed-through terminal block configuration (4 positions, 2 levels)
• Screw termination interface
• Polyamide insulation material with UL94 V-2 rating
• Diode feature requirement

Alternative Phoenix Contact terminal block series should be evaluated for functional equivalence, with verification of identical electrical ratings, mechanical dimensions, and termination compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 2906834 replace the 2788090 in my application?

A: No. The 2906834 is a transient voltage suppressor (circuit protection device), while the 2788090 is a terminal block connector. These serve different electrical functions and have incompatible mechanical interfaces. The 2906834 mounts on DIN rail; the 2788090 uses screw termination for wire connections.

Q: Why is the 2788090 listed as obsolete?

A: The product status indicates this component is no longer in active production. Current inventory exists, but long-term availability cannot be guaranteed. Procurement planning should identify functionally equivalent active-status alternatives.

Q: What specifications must a substitute terminal block match?

A: A functional substitute must provide 4-position, 2-level feed-through configuration with screw termination for 12-24 AWG wire (0.2-4mm²), polyamide insulation, UL94 V-2 flammability rating, and diode feature integration.

Q: Are both parts RoHS compliant?

A: Yes. The 2788090 is RoHS Compliant; the 2906834 is ROHS3 Compliant. Both meet current RoHS requirements.

Q: What is the significance of the 6.2mm terminal width specification?

A: Terminal width is a critical mechanical parameter determining physical fit within system enclosures and compatibility with mating connectors. Substitute components must match this dimension for proper installation.