Phoenix Contact 2794770 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2794770 is a 2-position feed-through terminal block connector rated for 10-26 AWG wire gauges with a 30A UL current rating and 110V UL voltage rating. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The terminal block features screw termination, polyamide insulation with UL94 V-2 flammability rating, and includes integrated diode protection.

Substiute Parts

2794770

Phoenix ContactIn Stock: 8192794770 Datasheet

Current PartRFQ

2906840

Phoenix ContactIn Stock: 12212906840 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part identified for the Phoenix Contact 2794770 is manufacturer part number 2906840, also from Phoenix Contact. However, this substitute represents a functional category shift from terminal blocks to transient voltage suppressors (TVS), indicating a different product classification.

Substitution logic is constrained by the following parameters:

• Manufacturer alignment (Phoenix Contact)
• Voltage compatibility range (150VAC/150VDC MCOV vs. 110V UL rating)
• Protection and safety certifications (UL, CSA approvals)
• RoHS compliance status
• Operating temperature range compatibility

The 2906840 is a circuit protection module designed for transient voltage suppression rather than direct terminal block replacement. This substitution applies only in applications where the primary requirement is voltage protection and circuit isolation, not general-purpose terminal connectivity.

Parameter Comparison

Engineering Selection Recommendations

Selection between the main part and substitute must be based on application requirements:

The Phoenix Contact 2794770 serves as a general-purpose 2-position feed-through terminal block with integrated diode protection. Its obsolete status necessitates alternative sourcing strategies.

The Phoenix Contact 2906840 substitute is an active product with enhanced voltage protection capabilities (500V protection level) and broader certification coverage (cCSAus, CSA, CSAus, UL). This part is suitable for applications requiring transient voltage suppression and circuit protection on DIN rail-mounted systems.

Direct substitution is not recommended for applications requiring standard terminal block connectivity without specialized voltage protection. The 2906840 is appropriate only when circuit protection and transient voltage suppression are primary design requirements.

Both parts maintain RoHS compliance and are manufactured by Phoenix Contact, ensuring supply chain continuity within the same manufacturer ecosystem.

Frequently Asked Questions (FAQ)

Q: Can the 2906840 directly replace the 2794770 in all applications?

A: No. The 2906840 is a transient voltage suppressor module, not a terminal block connector. Direct replacement is only appropriate in applications where voltage protection is a design requirement. Standard terminal connectivity applications require alternative terminal block solutions.

Q: What is the primary difference between these two parts?

A: The 2794770 is a 2-position screw-terminal feed-through connector designed for general wiring applications. The 2906840 is a DIN rail-mounted circuit protection module for transient voltage suppression. They serve different functional purposes.

Q: Are both parts RoHS compliant?

A: Yes. The 2794770 is RoHS Compliant, and the 2906840 is ROHS3 Compliant, meeting current environmental standards.

Q: What certifications does each part carry?

A: The 2794770 carries UL and CSA certifications. The 2906840 carries expanded certifications including cCSAus, CSA, CSAus, and UL, providing broader regional approval coverage.

Q: What is the voltage rating difference?

A: The 2794770 is rated for 110V UL. The 2906840 has a continuous operating voltage (MCOV) of 150VAC/150VDC with a protection level of 500V, making it suitable for higher-voltage transient protection applications.

Q: How do the mounting methods differ?

A: The 2794770 uses screw termination for direct wire connection. The 2906840 mounts on DIN rail systems, requiring different installation infrastructure.

Q: Is the 2906840 suitable for replacing the 2794770 in legacy systems?

A: Only if the system architecture supports DIN rail mounting and the application requires transient voltage protection. For standard terminal block replacement in legacy systems, alternative Phoenix Contact terminal block series should be evaluated.