Phoenix Contact 2834740 General Purpose Relay 4PDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834740 is a general purpose relay with 4PDT (4 Form C) contact configuration, rated for 5A at 120VAC coil voltage. This relay is designed for DIN rail mounting with screw terminal connections and includes integrated features such as a lighted indicator, socket, and varistor protection.

The 2834740 has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

2834740

Phoenix ContactIn Stock: 10342834740 Datasheet

Current PartRFQ

2903317

Phoenix ContactIn Stock: 9772903317 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2834740 is determined by the following critical parameters:

• Contact form must be 4PDT (4 Form C)
• Contact current rating must be 5A minimum
• Coil voltage must be 120VAC
• Mounting configuration must be DIN rail
• Termination must be screw terminal
• Relay type must be general purpose, non-latching
• Must include lighted indicator, socket, and varistor features
• RoHS3 compliance required

The Phoenix Contact 2903317 meets all substitution criteria as an active product with identical functional specifications and compatible electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903317 is the direct substitute for the obsolete 2834740. Both relays maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across applications.

The 2903317 is currently in active production status with confirmed inventory availability, providing supply chain continuity. The substitute part maintains identical contact configuration, current rating, coil voltage, and mounting specifications required for direct replacement.

Differences in coil current (13 mA vs. 9 mA), operate/release timing (15/20 ms vs. 10/12 ms), and maximum DC switching voltage (250VDC vs. 125VDC) represent design improvements in the active product line. These parameters should be evaluated against specific application requirements to confirm compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 2903317 directly replace the 2834740 in existing installations?

A: Yes. Both relays share identical contact form (4PDT), current rating (5A), coil voltage (120VAC), mounting type (DIN rail), and termination style (screw terminal). All functional features including lighted indicator, socket, and varistor are present in both models.

Q: What are the key differences between these two relays?

A: The 2903317 has higher coil current (13 mA vs. 9 mA), longer operate and release times (15/20 ms vs. 10/12 ms), extended DC switching voltage rating (250VDC vs. 125VDC), and a wider low-temperature operating range (-40°C vs. -25°C). The 2834740 includes gold-plated contacts while the 2903317 uses silver nickel contacts.

Q: Are there packaging differences between these parts?

A: The 2834740 is listed with standard packaging, while the 2903317 is supplied in bulk packaging. Both are suitable for component selection and installation.

Q: Do both relays meet current regulatory requirements?

A: Yes. Both the 2834740 and 2903317 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Which relay should be selected for new designs?

A: The 2903317 is the recommended choice for new designs due to its active product status, improved DC switching voltage rating, and extended temperature range. The 2834740 should only be used for direct replacement of existing installations where the part is already in service.