Phoenix Contact 2834627 General Purpose Relay DPDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834627 is a general purpose relay with DPDT (2 Form C) contact configuration, rated for 8A at 120VAC coil voltage. This relay is designed for DIN rail mounting with spring terminal connections and includes a lighted indicator, socket, and varistor protection. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance and replacement applications.

Substiute Parts

2834627

Phoenix ContactIn Stock: 10702834627 Datasheet

Current PartRFQ

2903328

Phoenix ContactIn Stock: 10072903328 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2834627 is constrained by the following critical parameters that must align between the main part and any substitute:

Mandatory Matching Parameters:

• Coil Voltage: 120VAC
• Contact Form: DPDT (2 Form C)
• Mounting Type: DIN Rail
• Termination Style: Spring Terminal
• Coil Type: Non Latching

Allowable Variation Parameters:

• Contact Rating (Current): The 2834627 is rated for 8A. Substitutes with lower current ratings (such as 50mA) are acceptable only in applications where the load current does not exceed the substitute's rating.
• Switching Voltage: The 2834627 supports 250VAC/250VDC maximum. Substitutes with lower switching voltage ratings are acceptable only if the application voltage remains within the substitute's limits.
• Operating Temperature Range: The 2834627 operates from -25°C to 60°C. Substitutes with narrower or different ranges are acceptable if the application environment falls within the substitute's specified range.
• Operate/Release Time: Timing variations are acceptable if the application does not require specific timing constraints.

The Phoenix Contact 2903328 meets the mandatory matching parameters and is therefore classified as a valid substitute, with the critical limitation that its 50mA contact rating restricts it to low-current applications only.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903328 is an active product substitute for the obsolete 2834627, sharing identical coil voltage (120VAC), contact form (DPDT), mounting configuration (DIN Rail), and termination style (Spring Terminal). Both relays feature non-latching coil operation with lighted indicators, sockets, and varistor protection.

The primary engineering consideration for substitution is the contact current rating differential. The 2834627 is rated for 8A switching capacity, while the 2903328 is rated for 50mA. This substitution is valid only for applications where the load current does not exceed 50mA. Applications requiring higher current switching must source alternative components with higher contact ratings.

Secondary considerations include switching voltage limits (2834627: 250VAC/250VDC maximum; 2903328: 30VAC/36VDC maximum) and operating temperature range (2834627: -25°C to 60°C; 2903328: -40°C to 50°C). The 2903328 provides extended low-temperature capability but reduced high-temperature operation. Both parts meet RoHS compliance requirements, with the 2903328 certified to ROHS3 standard and carrying REACH Affected status.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903328 directly replace the 2834627 in all applications?

A: No. While both relays share identical coil voltage, contact form, mounting type, and termination style, the 2903328 has a significantly lower contact current rating (50mA versus 8A). Direct replacement is only valid for applications where the switching load does not exceed 50mA.

Q: What is the primary difference between these two relays?

A: The contact current rating is the primary difference. The 2834627 is designed for general-purpose applications up to 8A, while the 2903328 is designed for low-current signal switching at 50mA maximum. Both maintain identical coil specifications and contact form.

Q: Are there any compliance differences between the 2834627 and 2903328?

A: Both parts are RoHS compliant. The 2903328 carries additional ROHS3 certification and REACH Affected status, indicating compliance with more recent regulatory standards. The 2834627 meets RoHS requirements without these additional certifications.

Q: How do the operating temperature ranges differ?

A: The 2834627 operates from -25°C to 60°C, while the 2903328 operates from -40°C to 50°C. The 2903328 provides better low-temperature performance but does not operate at temperatures above 50°C. Application environment must fall within the selected relay's specified range.

Q: What is the significance of the switching voltage ratings?

A: The 2834627 supports switching voltages up to 250VAC or 250VDC, while the 2903328 supports only 30VAC or 36VDC maximum. Applications requiring higher switching voltages must use the 2834627 or source alternative components. The 2903328 is suitable only for low-voltage signal circuits.

Q: Are the socket and indicator features identical on both relays?

A: Yes. Both the 2834627 and 2903328 include lighted indicators, socket connections, and varistor protection. These features are functionally equivalent between the two parts.

Q: What is the packaging difference?

A: The 2834627 is supplied with standard packaging, while the 2903328 is supplied in bulk packaging. This difference does not affect electrical or mechanical compatibility.