Phoenix Contact 2902964 SSR Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2902964 is a solid-state relay (SSR) module with SPST-NO (1 Form A) configuration, designed for DIN rail mounting applications. This component operates with a 24VDC input and supports load voltages from 4V to 30V at 50mA output current. The part is classified as obsolete, making identification of suitable substitute components essential for system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

2902964

Phoenix ContactIn Stock: 11502902964 Datasheet

Current PartRFQ

2902968

Phoenix ContactIn Stock: 8962902968 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2902964 is determined by the following critical parameters:

• Circuit configuration must remain SPST-NO (1 Form A)
• Output type must be DC
• Input voltage must be 24VDC
• Load current capability must be 50mA minimum
• Mounting type must be DIN Rail
• Termination style must be Screw Terminal
• Package type must be Module

The Phoenix Contact 2902968 qualifies as a substitute based on these criteria. The primary difference is the load voltage range specification: the 2902968 operates from 14V to 30V, compared to the 2902964's 4V to 30V range. This represents a narrower operating window for the substitute part, which is acceptable for applications where the minimum load voltage requirement is 14V or higher.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2902968 is the qualified substitute for the obsolete 2902964 model. Both components share identical electrical specifications for input voltage (24VDC), output current (50mA), circuit configuration (SPST-NO), and mounting characteristics (DIN Rail, Screw Terminal).

The 2902968 offers the advantage of active product status, ensuring continued availability and supply chain reliability. The component meets ROHS3 compliance and is REACH affected, reflecting current regulatory standards. The narrower load voltage range (14V ~ 30V versus 4V ~ 30V) must be evaluated against specific application requirements; substitution is appropriate only when the minimum load voltage in the application is 14V or higher.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2902968 directly replace the 2902964 in all applications?

A: Direct replacement is possible only when the application's minimum load voltage requirement is 14V or higher. The 2902968 does not support load voltages below 14V, whereas the 2902964 operates down to 4V. Verify the load voltage range of your specific application before substitution.

Q: What is the significance of the product status change from Obsolete to Active?

A: The 2902968's active status indicates ongoing manufacturing and availability through distribution channels. This ensures long-term supply chain continuity and access to technical support, which is critical for maintenance and future procurement.

Q: Are there compliance differences between the two parts?

A: Both parts are RoHS compliant. The 2902968 meets the more recent ROHS3 standard and is REACH affected, reflecting current environmental and regulatory requirements. The 2902964 meets the earlier RoHS standard. Both have identical Moisture Sensitivity Level ratings (1 - Unlimited).

Q: What are the key electrical parameters that must match for substitution?

A: The critical matching parameters are: 24VDC input voltage, 50mA load current, SPST-NO circuit configuration, and DC output type. These parameters are identical between the 2902964 and 2902968. The load voltage range is the only specification that differs and must be evaluated against application requirements.

Q: Are the mounting and termination characteristics identical?

A: Yes. Both the 2902964 and 2902968 use DIN Rail mounting and Screw Terminal termination, ensuring mechanical and electrical interface compatibility in existing installations.