Phoenix Contact 2834782 General Purpose Relay 4PDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834782 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 and includes a lighted indicator, socket, and varistor protection. The part is currently obsolete, making identification of suitable substitute components essential for system maintenance and new designs requiring equivalent functionality.

Substiute Parts

2834782

Phoenix ContactIn Stock: 10982834782 Datasheet

Current PartRFQ

2903305

Phoenix ContactIn Stock: 11442903305 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2834782 is determined by the following critical parameters:

• Coil Voltage: 120VAC (exact match required)
• Contact Form: 4PDT (4 Form C) configuration (exact match required)
• Contact Rating: 5A minimum (equal or higher acceptable)
• Switching Voltage: 250VAC, 250VDC maximum (equal or higher acceptable)
• Mounting Type: DIN Rail (exact match required)
• Coil Type: Non Latching (exact match required)
• Termination Style: Spring Terminal (exact match required)

The Phoenix Contact 2903305 meets all critical substitution criteria. This part maintains identical coil voltage, contact form, current rating, switching voltage capability, mounting configuration, and termination style. Both relays are general purpose devices with comparable feature sets including lighted indicators, socket inclusion, and varistor protection.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903305 is the direct substitute for the obsolete 2834782. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity. Both parts carry equivalent export classifications (EAR99) and comply with RoHS standards, with the substitute meeting the more recent ROHS3 specification.

The 2903305 operates across a broader temperature range (-40°C to 50°C versus -25°C to 60°C), providing enhanced low-temperature performance. Timing characteristics differ slightly, with the substitute exhibiting longer operate and release times (15 ms and 20 ms respectively, compared to 10 ms and 12 ms). These timing differences are within acceptable ranges for general purpose relay applications and do not preclude direct substitution in standard switching circuits.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903305 directly replace the 2834782 in existing installations?

A: Yes. Both relays share identical coil voltage (120VAC), contact configuration (4PDT), current rating (5A), switching voltage capability (250VAC/250VDC), mounting type (DIN Rail), and termination style (Spring Terminal). The substitute is actively manufactured and available.

Q: What are the differences between these two relays?

A: The primary differences are coil current (9 mA versus 13 mA), operate/release timing (10/12 ms versus 15/20 ms), operating temperature range (-25°C to 60°C versus -40°C to 50°C), and contact material composition. The substitute includes only Silver Nickel contacts, while the original includes both Silver Nickel and Gold options.

Q: Does the longer operate time of the 2903305 affect circuit performance?

A: The 2903305 operates in 15 ms and releases in 20 ms, compared to 10 ms and 12 ms for the original. These timing differences are typical between relay series and remain within acceptable parameters for general purpose switching applications. Application-specific timing requirements should be evaluated against circuit specifications.

Q: Are both relays RoHS compliant?

A: Yes. The 2834782 is RoHS Compliant, and the 2903305 is ROHS3 Compliant. Both meet environmental compliance requirements for their respective manufacturing periods.

Q: What is the packaging difference between these parts?

A: The 2834782 is supplied with standard packaging, while the 2903305 is supplied in bulk packaging. Both are suitable for component integration into systems and assemblies.