Phoenix Contact 2946793 SSR Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2946793 is a solid-state relay (SSR) module configured as SPST-NO (Single Pole Single Throw - Normally Open) with a 1 Form A circuit. This component is designed for DIN rail mounting and operates with a 12VDC input signal to control DC loads up to 2A within the 10V to 30V range. The product is classified as obsolete, making identification of suitable substitute components essential for system maintenance and new design implementations.

Substiute Parts

2946793

Phoenix ContactIn Stock: 10902946793 Datasheet

Current PartRFQ

2900382

Phoenix ContactIn Stock: 12662900382 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2946793 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 12VDC
• Mounting type must be DIN Rail
• Termination style must be Screw Terminal
• Load voltage range must encompass or match the original specification
• Load current rating must meet or exceed the original 2A requirement

The Phoenix Contact 2900382 qualifies as a substitute based on matching circuit configuration, output type, input voltage, mounting type, and termination style. However, the load current rating of 1A is lower than the original 2A specification, and the load voltage range extends to 300V, which exceeds the original 10V to 30V range.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2900382 is available as an active product with ROHS3 compliance, providing improved regulatory status compared to the obsolete 2946793. Both components share identical circuit configuration, input voltage specification, mounting type, and termination style within the PLC-OPT series.

Selection of the 2900382 as a substitute requires verification that the application load current does not exceed 1A, as this represents a reduction from the original 2A rating. The extended load voltage range of 12V to 300V provides broader operational capability compared to the original 10V to 30V specification.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2900382 directly replace the 2946793 in all applications?

A: Direct replacement is possible only when the application load current does not exceed 1A. If the original design requires the full 2A load current capability, the 2900382 is not suitable as a substitute.

Q: What is the significance of the load voltage range difference between these parts?

A: The 2946793 operates with loads in the 10V to 30V range, while the 2900382 supports 12V to 300V. The 2900382 can handle higher voltage loads but requires confirmation that the application load voltage falls within the 12V minimum threshold.

Q: Are both parts compatible with the same DIN rail mounting infrastructure?

A: Yes. Both the 2946793 and 2900382 utilize DIN rail mounting and screw terminal connections, ensuring mechanical and electrical interface compatibility within the same installation framework.

Q: What compliance advantage does the 2900382 offer?

A: The 2900382 carries ROHS3 compliance and active product status, whereas the 2946793 is obsolete. This provides improved long-term availability and regulatory alignment for new designs and system updates.

Q: Are there any circuit configuration differences between these parts?

A: No. Both components maintain identical SPST-NO (1 Form A) circuit configuration and 12VDC input voltage specification, ensuring functional equivalence in control signal processing.