Phoenix Contact 2834423 General Purpose Relay SPDT 10A 120V - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834423 is a general purpose relay with Single Pole Double Throw (SPDT) contact configuration, rated for 10A 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 classified as obsolete, making identification of suitable substitute components essential for system maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

2834423

Phoenix ContactIn Stock: 10932834423 Datasheet

Current PartRFQ

2903340

Phoenix ContactIn Stock: 11252903340 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2834423 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Contact Form: SPDT (1 Form C)
• Contact Rating (Current): 10 A
• Coil Voltage: 120VAC
• Mounting Type: DIN Rail
• Termination Style: Spring Terminal
• Coil Type: Non Latching
• Contact Material: Silver Nickel (AgNi)

Allowable Variations:

• Coil Current: Minor variations acceptable (7 mA to 8 mA range)
• Operate/Release Time: Variations within 4 ms acceptable for non-critical timing applications
• Operating Temperature Range: Substitute may have narrower or different range if application requirements are met
• Product Status: Active status preferred for new procurement
• Compliance Certifications: Equal or higher compliance level acceptable

The Phoenix Contact 2834423 is part of the PR1 series. The identified substitute, Phoenix Contact 2903340, belongs to the RIF series and meets all mandatory matching parameters while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903340 is a direct functional equivalent to the obsolete 2834423. Selection of the 2903340 is supported by the following engineering factors:

Product Status: The 2903340 is in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete 2834423.

Compliance Certifications: The 2903340 meets ROHS3 compliance, which exceeds the RoHS compliance of the original part, indicating adherence to current regulatory standards. The 2903340 is also REACH affected, reflecting current environmental compliance requirements.

Electrical Equivalence: All critical electrical parameters are identical or within acceptable engineering tolerances. The 1 mA increase in coil current (7 mA to 8 mA) and 4 ms increase in release time (16 ms to 20 ms) do not compromise functional performance in standard general purpose relay applications.

Mechanical Compatibility: Both relays share identical mounting type (DIN Rail), termination style (Spring Terminal), and feature set (Lighted Indicator, Socket Included, Varistor), ensuring direct mechanical and electrical integration into existing installations.

Temperature Operating Range: While the 2903340 has a narrower upper temperature limit (50°C vs. 60°C), it extends the lower operating range to -40°C, providing enhanced performance in cold environments.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903340 directly replace the 2834423 in existing installations?

A: Yes. The 2903340 meets all mandatory electrical and mechanical parameters for direct substitution. Both relays feature identical contact form (SPDT), current rating (10A), coil voltage (120VAC), mounting type (DIN Rail), and termination style (Spring Terminal). The minor variations in coil current and release time do not affect standard general purpose relay applications.

Q: What is the difference in operating temperature range between these two relays?

A: The 2834423 operates from -25°C to 60°C, while the 2903340 operates from -40°C to 50°C. The 2903340 provides extended low-temperature capability (-40°C vs. -25°C) but has a lower maximum temperature limit (50°C vs. 60°C). Selection depends on the specific application temperature requirements.

Q: Are there packaging differences between the main part and substitute?

A: The 2834423 is packaged as individual units with socket included. The 2903340 is supplied in bulk packaging. Both include the socket and are suitable for DIN rail installation. Bulk packaging of the 2903340 may offer cost advantages for larger quantity requirements.

Q: How do the compliance certifications compare?

A: The 2834423 is RoHS Compliant. The 2903340 is ROHS3 Compliant and REACH Affected, indicating compliance with more current environmental and regulatory standards. The 2903340 represents a higher compliance level suitable for modern procurement requirements.

Q: What is the significance of the 4 ms difference in release time?

A: The 2834423 has a 16 ms release time, while the 2903340 has a 20 ms release time. This 4 ms difference is negligible for general purpose relay applications and does not affect standard switching operations. Applications with critical timing requirements should evaluate this parameter against specific system specifications.

Q: Is the 1 mA increase in coil current significant?

A: The coil current increases from 7 mA to 8 mA, a 1 mA variation. This minor increase does not present compatibility issues in standard control circuits and is within normal manufacturing tolerances for relay coil specifications.

Q: Why is the 2834423 listed as obsolete?

A: The 2834423 belongs to the PR1 series, which has been superseded by the RIF series (represented by the 2903340). Phoenix Contact has transitioned production to the RIF series, making the PR1 series obsolete. The 2903340 provides equivalent functionality with current production status and enhanced compliance certifications.