Phoenix Contact 2834342 General Purpose Relay SPDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834342 is a general purpose relay with Single Pole Double Throw (SPDT) contact configuration, rated for 12A at 120VAC coil voltage. This relay is designed for DIN rail mounting and includes integrated features such as a lighted indicator, socket, and varistor protection. The part is currently classified as obsolete, making identification of suitable substitute components essential for system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

2834342

Phoenix ContactIn Stock: 7402834342 Datasheet

Current PartRFQ

2903356

Phoenix ContactIn Stock: 10222903356 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2834342 is determined by the following critical parameters:

• Contact Configuration: SPDT (1 Form C) contact form must be maintained
• Coil Voltage: 120VAC coil voltage requirement
• Mounting Standard: DIN rail mounting compatibility
• Contact Current Rating: Minimum 12A continuous current capability
• Switching Voltage: 250VAC/250VDC maximum switching voltage capability
• Termination: Screw terminal connection method
• Coil Type: Non-latching operation
• Core Features: Lighted indicator, socket inclusion, and varistor protection

The Phoenix Contact 2903356 qualifies as a substitute component based on alignment with these core substitution criteria, with specific parameter variations noted in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903356 is an active production substitute for the obsolete 2834342. Both components maintain identical contact configuration (SPDT), coil voltage (120VAC), mounting standard (DIN rail), and core feature set (lighted indicator, socket, varistor).

The 2903356 demonstrates enhanced regulatory compliance through ROHS3 certification and REACH compliance status, compared to the RoHS compliant 2834342. The substitute part is currently in active production with confirmed inventory availability.

Parameter variations between the two components are limited to contact current rating (10A versus 12A), coil current draw (8mA versus 7mA), release time (20ms versus 16ms), and operating temperature range (-40°C to 50°C versus -25°C to 60°C). These differences must be evaluated against specific application requirements to determine suitability for replacement scenarios.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903356 directly replace the 2834342 in all applications?

A: The 2903356 maintains the same contact configuration, coil voltage, mounting type, and feature set as the 2834342. However, the contact current rating is reduced from 12A to 10A. Applications requiring continuous current loads exceeding 10A at the contact terminals require evaluation of the specific load profile before substitution.

Q: What is the significance of the contact current rating difference between these parts?

A: The 2834342 is rated for 12A continuous contact current, while the 2903356 is rated for 10A. This difference affects the maximum continuous load the relay contacts can safely carry. Applications operating at or near the 12A limit require confirmation that the 10A rating of the substitute part is adequate for the intended load.

Q: Are there temperature range considerations for substitution?

A: The 2834342 operates across -25°C to 60°C, while the 2903356 operates across -40°C to 50°C. The substitute part provides extended low-temperature capability but reduced high-temperature capability. Applications operating above 50°C or below -25°C require specific evaluation against the substitute part's temperature range.

Q: How do the release time specifications differ?

A: The 2834342 has a release time of 16ms, while the 2903356 has a release time of 20ms. This 4ms difference may be significant in time-critical switching applications. Applications with strict release time requirements should confirm that the 20ms specification of the substitute part meets system timing constraints.

Q: What is the packaging difference between these parts?

A: The 2834342 is supplied with standard packaging, while the 2903356 is supplied in bulk packaging. This affects order quantities and handling procedures but does not impact electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The 2834342 is RoHS compliant, and the 2903356 is ROHS3 compliant, representing an enhanced compliance standard. The 2903356 also carries REACH compliance status.