Phoenix Contact 2903290 General Purpose Relay DPDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2903290 is a general purpose relay with DPDT (2 Form C) contact configuration, designed for 120VAC coil operation on DIN rail mounting. This relay features a 9A contact rating, lighted indicator, socket inclusion, 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

2903290

Phoenix ContactIn Stock: 8892903290 Datasheet

Current PartRFQ

2903287

Phoenix ContactIn Stock: 9382903287 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2903290 is determined by the following critical parameters:

• Coil Voltage: 120VAC (must match exactly)
• Mounting Type: DIN Rail (must match exactly)
• Coil Current: 24 mA (must match exactly)
• Coil Type: Non Latching (must match exactly)
• Termination Style: Screw Terminal (must match exactly)
• Operating Temperature Range: -40°C ~ 40°C (must match exactly)
• Contact Material: Silver Nickel (AgNi) (must match exactly)
• Coil Resistance: 5 kOhms (must match exactly)

The Phoenix Contact 2903287 qualifies as a substitute component. While it differs in contact form (3PDT vs. DPDT) and contact rating (8A vs. 9A), these variations remain within acceptable substitution parameters for applications where the higher contact count and slightly lower current rating do not create functional conflicts. Both components share identical coil specifications, mounting architecture, and environmental operating conditions.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903287 is available as an active product with current manufacturing support and ROHS3 compliance certification, whereas the 2903290 is obsolete. Both components operate under identical coil specifications (120VAC, 24 mA, 5 kOhms) and share the same DIN rail mounting architecture, screw terminal configuration, and environmental operating range (-40°C ~ 40°C).

The primary distinction between these relays is the contact configuration: the 2903290 provides DPDT (2 Form C) at 9A, while the 2903287 provides 3PDT (3 Form C) at 8A. Selection between these components depends on circuit requirements for contact count and current-carrying capacity. The 2903287 offers additional contact switching capability with one additional pole, while the 2903290 provides higher per-contact current rating.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903287 directly replace the 2903290 in existing installations?

A: Direct replacement depends on circuit design. Both relays share identical coil drive requirements (120VAC, 24 mA) and mounting compatibility. However, the 2903287 provides 3PDT contact configuration versus the 2903290's DPDT configuration. If the application requires only two switching poles, the additional pole on the 2903287 remains unused but does not prevent operation. The 8A contact rating of the 2903287 versus the 9A rating of the 2903290 must be evaluated against actual circuit current demands.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: coil voltage (120VAC), mounting type (DIN Rail), coil current (24 mA), coil type (Non Latching), termination style (Screw Terminal), operating temperature range (-40°C ~ 40°C), contact material (Silver Nickel), and coil resistance (5 kOhms). Variations in contact form and contact rating are secondary considerations dependent on specific application requirements.

Q: What is the difference in product status between these two relays?

A: The 2903290 is classified as obsolete, indicating discontinued manufacturing and limited availability. The 2903287 is classified as active, indicating current production and ongoing manufacturer support. For new designs or long-term system maintenance, the active 2903287 is the preferred selection.

Q: Are there compliance differences between the 2903290 and 2903287?

A: The 2903290 carries RoHS Compliant certification. The 2903287 carries ROHS3 Compliant certification and is REACH Affected. Both meet environmental regulatory requirements applicable to their respective manufacturing periods.

Q: How do the contact ratings affect component selection?

A: The 2903290 supports 9A per contact, while the 2903287 supports 8A per contact. Applications requiring current levels between 8A and 9A must be evaluated against the 2903287's 8A maximum rating. The maximum switching voltage (440VAC, 250VDC) is identical for both components.