Phoenix Contact 2834520 General Purpose Relay DPDT 24VDC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2834520 is a general purpose relay with DPDT (2 Form C) contact configuration, designed for DIN rail mounting with a 24VDC coil. This relay features an 8A contact rating, diode protection, lighted indicator, and socket inclusion. The product is currently obsolete, making identification of suitable substitute components essential for system maintenance and new designs requiring equivalent functionality.

Substiute Parts

2834520

Phoenix ContactIn Stock: 7432834520 Datasheet

Current PartRFQ

2903346

Phoenix ContactIn Stock: 10552903346 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2834520 is determined by the following critical parameters:

• Coil Voltage: 24VDC (mandatory match)
• Contact Form: DPDT (2 Form C) (mandatory match)
• Mounting Type: DIN Rail (mandatory match)
• Coil Type: Non Latching (mandatory match)
• Termination Style: Screw Terminal (mandatory match)
• Contact Rating (Current): Must meet or exceed application requirements
• Switching Voltage: Must support application voltage levels
• Operating Temperature Range: Must encompass application environment
• Coil Current: Should be comparable for control circuit compatibility
• Timing Characteristics: Operate and release times should align with system requirements

The Phoenix Contact 2903346 qualifies as a substitute based on matching coil voltage (24VDC), contact form (DPDT), mounting type (DIN Rail), coil type (Non Latching), and termination style (Screw Terminal). However, the contact rating differs significantly, requiring application-specific evaluation.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903346 is an active product with current manufacturing status, whereas the 2834520 is obsolete. Both relays comply with RoHS requirements and share identical export classification (EAR99).

Selection between these parts must be based on application current requirements. The 2834520 supports 8A contact rating with switching capability up to 250VAC/250VDC. The 2903346 is rated for 50mA contact current with maximum switching voltage of 30VAC/36VDC. These specifications represent a significant reduction in power handling capacity.

The 2903346 provides an extended operating temperature range (-40°C to 70°C versus -25°C to 60°C), which may be advantageous in certain environmental conditions. Both relays maintain identical coil current (approximately 18-19mA) and timing characteristics (8ms operate, 10ms release).

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903346 directly replace the 2834520 in all applications?

A: Direct replacement is limited by contact rating. The 2903346 is rated for 50mA maximum contact current, while the 2834520 supports 8A. Substitution is only valid for applications requiring 50mA or less. Applications exceeding this current threshold require alternative solutions.

Q: What are the key compatibility factors for substitution?

A: Both relays share identical coil voltage (24VDC), contact configuration (DPDT), mounting method (DIN Rail), coil type (Non Latching), and termination style (Screw Terminal). These parameters ensure mechanical and electrical interface compatibility. Contact rating and switching voltage must be evaluated against specific application requirements.

Q: How do the switching voltage ratings differ?

A: The 2834520 supports 250VAC and 250VDC maximum switching voltage. The 2903346 is limited to 30VAC and 36VDC maximum. Applications involving higher voltage switching circuits require the 2834520 or an alternative part with equivalent voltage rating.

Q: Are there temperature range considerations for substitution?

A: The 2903346 operates across -40°C to 70°C, providing a wider temperature envelope than the 2834520 (-25°C to 60°C). For applications within the 2834520 temperature range, both relays are suitable. Applications requiring operation below -25°C or above 60°C benefit from the 2903346's extended range.

Q: What is the significance of the product status difference?

A: The 2834520 is obsolete, indicating discontinued manufacturing. The 2903346 is active with current production. For new designs or long-term system support, the active 2903346 is preferred where application parameters permit substitution.

Q: Do both relays include the same features?

A: Both relays include diode protection, lighted indicator, and socket inclusion. Feature parity supports functional equivalence in control circuit applications where contact rating and voltage specifications align.