Phoenix Contact 2911731 SSR Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2911731 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 DC load switching applications with a maximum load current of 100 mA and operates across an input voltage range of 120VAC. The 2911731 belongs to the ST-OE2 series and features socketable mounting for flexible installation configurations.

The 2911731 has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement, repair, and new design implementations.

Substiute Parts

2911731

Phoenix ContactIn Stock: 11062911731 Datasheet

Current PartRFQ

2966744

Phoenix ContactIn Stock: 11572966744 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2911731 is determined by the following critical parameters:

Circuit Configuration: Both the main part and substitute must maintain SPST-NO (1 Form A) switching topology to preserve system logic and control functionality.

Output Type: DC output specification must be maintained for compatibility with existing load circuits.

Load Current Rating: The 100 mA load current specification establishes the maximum switching capacity. Substitute parts must support this current level.

Load Voltage Range: The 8 V ~ 48 V operating range defines the compatible load voltage window. Substitute parts must encompass or exceed this range.

Input Voltage Compatibility: The 120VAC input specification must be supported by substitute parts to ensure proper control signal reception.

Mounting and Termination: Physical form factor and connection method must be compatible with the installation environment.

The Phoenix Contact 2966744 qualifies as a substitute based on these parameters while offering active product status and enhanced compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2966744 serves as the primary substitute for the obsolete 2911731. Both components maintain identical circuit configuration (SPST-NO), output type (DC), and load current specification (100 mA), establishing functional equivalence for switching applications.

The 2966744 provides expanded input voltage flexibility with 120VAC/DC support compared to the 2911731's 120VAC-only specification. The load voltage range of 3 V ~ 48 V on the 2966744 encompasses the 2911731's 8 V ~ 48 V range, ensuring compatibility with existing load circuits.

The 2966744 holds active product status, ensuring ongoing availability and supply chain continuity. This component carries ROHS3 compliance certification and REACH compliance status, meeting current regulatory requirements for electronic components in industrial applications.

Physical form factor differences exist between these parts. The 2911731 uses socketable mounting with plug-in termination, while the 2966744 employs DIN Rail mounting with screw terminal connections. Installation environment and mechanical constraints must be evaluated to determine feasibility of this substitution in existing systems.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2966744 directly replace the 2911731 in existing installations?

A: Functional substitution is supported based on matching circuit configuration, output type, and load current specifications. However, physical mounting differences (socketable vs. DIN Rail) and termination style differences (plug-in vs. screw terminal) require mechanical compatibility assessment before installation.

Q: What are the key compatibility criteria for substituting the 2911731?

A: Substitute parts must maintain SPST-NO circuit configuration, DC output type, 100 mA load current capability, and support for 120VAC input voltage. Load voltage range compatibility must encompass the 8 V ~ 48 V operating window of the original application.

Q: Does the 2966744 support the same load voltage range as the 2911731?

A: The 2966744 supports a load voltage range of 3 V ~ 48 V, which encompasses the 2911731's 8 V ~ 48 V specification. Applications operating within the 8 V ~ 48 V window maintain full compatibility.

Q: What compliance advantages does the 2966744 offer over the 2911731?

A: The 2966744 carries ROHS3 compliance and REACH compliance status, representing current regulatory standards. The 2911731 holds RoHS Compliant status. Both components maintain MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Are there packaging or supply considerations when transitioning from the 2911731 to the 2966744?

A: The 2911731 is obsolete with limited remaining inventory. The 2966744 maintains active product status with established supply channels. Bulk packaging is available for the 2966744, supporting both replacement and new design requirements.