Phoenix Contact 2903690 Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2903690 is a general purpose relay with DPDT (Double Pole Double Throw, 2 Form C) configuration, rated for 10A at 24VAC coil voltage. This socketable relay is part of the REL-OR series and is designed for standard industrial control applications requiring dual-pole switching functionality.

Substitute parts are identified when equivalent electrical ratings and mechanical compatibility allow direct replacement in the same application circuit, maintaining identical switching performance and form factor requirements.

Substiute Parts

2903690

Phoenix ContactIn Stock: 8402903690 Datasheet

Current PartRFQ

2903694

Phoenix ContactIn Stock: 9122903694 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for relay components is determined by the following parameters:

• Contact configuration type (Form A, Form B, Form C, and pole count)
• Current carrying capacity
• Coil voltage and type (AC/DC)
• Mechanical form factor (socketable compatibility)
• Series family membership

The Phoenix Contact 2903694 is identified as a substitute part but operates under different electrical parameters. While both parts share the same manufacturer, series family (REL-OR), coil voltage (24VAC), current rating (10A), and socketable form factor, the 2903694 features a 3PDT (3 Form C) contact configuration compared to the DPDT (2 Form C) configuration of the 2903690. This difference in pole count means the 2903694 provides additional switching poles beyond the requirements of the 2903690 application.

Parameter Comparison

Engineering Selection Recommendations

Selection between the 2903690 and 2903694 depends on circuit requirements for pole count. The 2903690 provides two independent switching poles suitable for applications requiring dual-channel control. The 2903694 provides three independent switching poles, enabling additional switching circuits within a single relay package.

Both parts maintain identical electrical ratings (10A, 24VAC) and mechanical compatibility within the REL-OR socketable relay family. Selection should be based on the specific number of switching poles required by the application schematic.

Frequently Asked Questions (FAQ)

Q: Can the 2903694 directly replace the 2903690 in an existing circuit?

A: Direct replacement is possible only if the application circuit design accommodates the additional third pole provided by the 2903694. If the circuit uses only two poles, the third pole remains unused but does not affect operation of the active poles.

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

A: DPDT indicates two independent Form C contacts (each contact has three terminals: common, normally open, and normally closed). 3PDT indicates three independent Form C contacts. The additional pole in the 3PDT configuration provides an extra switching circuit.

Q: Are both parts compatible with the same socket?

A: Both the 2903690 and 2903694 are socketable relays within the REL-OR series. Mechanical compatibility with the relay socket depends on the socket design specifications for the REL-OR family.

Q: Do both relays have identical coil specifications?

A: Both parts operate with 24VAC coil voltage and are rated for 10A switching current, maintaining equivalent electrical performance for the active poles in use.