Phoenix Contact 2834177 General Purpose Relay DPDT 10A 48VDC

Part Overview

The Phoenix Contact 2834177 is a general purpose relay with DPDT (2 Form C) contact configuration rated for 10A at 48VDC coil voltage. This socketable relay features a diode, lighted indicator, and test button for diagnostic purposes. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new designs requiring similar functionality.

Substiute Parts

2834177

Phoenix ContactIn Stock: 7432834177 Datasheet

Current PartRFQ

LY2I4N DC48

Omron Automation and SafetyIn Stock: 868LY2I4N DC48 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2834177 is determined by the following critical parameters:

• Contact configuration: DPDT (2 Form C) with 10A current rating
• Coil voltage: 48VDC
• Mounting type: Socketable with plug-in termination
• Switching voltage capability: Minimum 250VAC and 250VDC
• Coil type: Non-latching operation
• Environmental compliance: RoHS compliant

The Omron Automation and Safety LY2I4N DC48 meets these core substitution criteria. Both relays share identical contact form, current rating, coil voltage, mounting configuration, and termination style. Both are RoHS compliant and operate as non-latching relays with socketable mounting.

Parameter Comparison

Engineering Selection Recommendations

The Omron LY2I4N DC48 serves as a direct functional substitute for the obsolete Phoenix Contact 2834177. Both relays are RoHS compliant and share identical contact configuration, current rating, coil voltage, and socketable mounting architecture.

The primary design consideration is the DC switching voltage rating. The Phoenix Contact 2834177 supports 250VDC maximum switching voltage, while the Omron LY2I4N DC48 is rated for 125VDC maximum. Applications requiring DC switching above 125V must evaluate alternative solutions or confirm that AC switching capability at 250VAC is sufficient for the intended circuit.

The operating temperature range differs between the two relays. The Phoenix Contact 2834177 operates from -55°C to 70°C, while the Omron LY2I4N DC48 operates from -25°C to 55°C. Applications requiring operation below -25°C or above 55°C must assess whether the narrower temperature range of the Omron relay is acceptable for the deployment environment.

Both relays exhibit comparable coil current (19 mA vs. 18.5 mA) and coil resistance (2.56 kOhms vs. 2.6 kOhms), ensuring compatible power supply and control circuit integration.

Frequently Asked Questions (FAQ)

Q: Can the Omron LY2I4N DC48 replace the Phoenix Contact 2834177 in all applications?

A: The Omron relay is functionally equivalent for applications operating within its specified parameters. The DC switching voltage limit of 125VDC (versus 250VDC for the Phoenix Contact) and the narrower operating temperature range (-25°C to 55°C versus -55°C to 70°C) must be evaluated against your specific circuit requirements.

Q: What is the significance of the DPDT (2 Form C) contact configuration?

A: DPDT (Double Pole Double Throw) with 2 Form C contacts means the relay contains two independent switching circuits, each capable of switching between two positions. This configuration supports applications requiring simultaneous control of two separate circuits or changeover switching operations.

Q: Are both relays compatible with the same socket?

A: Both relays feature socketable mounting with plug-in termination. Physical compatibility with existing sockets should be confirmed through mechanical drawings and socket specifications, as socket designs may vary by manufacturer.

Q: What does RoHS compliance indicate?

A: RoHS (Restriction of Hazardous Substances) compliance indicates that the relay meets regulatory requirements restricting the use of specific hazardous materials including lead, mercury, cadmium, and certain flame retardants. Both relays meet this compliance standard.

Q: How do the coil current specifications affect circuit design?

A: The coil current (19 mA for Phoenix Contact, 18.5 mA for Omron) determines the control circuit power requirements. The minimal difference between these values ensures that existing control circuits designed for the Phoenix Contact relay will operate the Omron substitute without modification.

Q: What is the difference between silver and silver alloy contact materials?

A: Both materials provide reliable electrical contact performance. Silver alloy contacts may offer enhanced durability in specific switching environments. Contact material selection should be evaluated based on the specific load characteristics and switching frequency of your application.