Phoenix Contact 2903699 General Purpose Relay DPDT 24VAC

Part Overview

The Phoenix Contact 2903699 is a general purpose relay with DPDT (Double Pole Double Throw, 2 Form C) configuration, rated for 16A at 24VAC coil voltage. This socketable relay is designed for standard industrial control applications requiring dual-pole switching functionality. With 747 units in current stock, this part remains actively available. Equivalent substitute parts may be required due to application-specific contact configuration needs, extended lead times, or design optimization for alternative switching topologies.

Substiute Parts

2903699

Phoenix ContactIn Stock: 7932903699 Datasheet

Current PartRFQ

2903703

Phoenix ContactIn Stock: 9772903703 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Phoenix Contact 2903699 is based on the following critical parameters:

• Coil Voltage: 24VAC (must match exactly for direct replacement)
• Current Rating: 16A (minimum requirement for equivalent switching capacity)
• Form Factor: Socketable configuration (mechanical compatibility)
• Manufacturer: Phoenix Contact (series compatibility within product line)

The identified substitute part 2903703 differs in contact configuration (3PDT vs. DPDT), making it suitable only for applications requiring three independent switching poles instead of two. This substitution is valid only when the application design permits the additional contact pole.

Parameter Comparison

Engineering Selection Recommendations

Selection between the Phoenix Contact 2903699 and 2903703 depends on circuit requirements:

Phoenix Contact 2903699 is the appropriate choice for applications requiring exactly two independent switching poles with 16A capacity at 24VAC coil voltage.

Phoenix Contact 2903703 serves applications requiring three independent switching poles with identical electrical ratings. The additional contact pole increases circuit flexibility but requires verification that the application design accommodates the 3PDT configuration.

Both parts maintain identical current ratings (16A) and coil voltage (24VAC), ensuring equivalent electrical performance within their respective contact configurations. Both are socketable, confirming mechanical compatibility within the Phoenix Contact relay socket ecosystem.

Frequently Asked Questions (FAQ)

Q: Can the 2903703 directly replace the 2903699 in all applications?

A: No. While both relays share identical coil voltage (24VAC) and current rating (16A), the 2903703 provides three switching poles (3PDT) versus two poles (DPDT) in the 2903699. Direct substitution is valid only if the application circuit design accommodates the additional contact pole.

Q: What is the significance of the DPDT and 3PDT designations?

A: DPDT (Double Pole Double Throw) provides two independent Form C contacts, each capable of switching between two positions. 3PDT (Triple Pole Double Throw) provides three independent Form C contacts. The contact configuration determines how many separate circuits can be controlled simultaneously.

Q: Are both parts socketable?

A: Yes. Both the 2903699 and 2903703 are socketable relays, confirming mechanical compatibility with standard Phoenix Contact relay sockets.

Q: Do both parts operate at the same coil voltage?

A: Yes. Both relays operate at 24VAC coil voltage and are rated for 16A switching current, ensuring equivalent electrical performance within their respective contact configurations.

Q: Which part should be selected for new designs?

A: Selection depends on the number of independent switching poles required by the application. For two-pole switching, specify the 2903699. For three-pole switching, specify the 2903703. Both parts are in current stock with adequate inventory levels.