Phoenix Contact 2903302 General Purpose Relay DPDT 120VAC - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2903302 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 7A 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 and new design implementations where equivalent functionality is required.

Substiute Parts

2903302

Phoenix ContactIn Stock: 9492903302 Datasheet

Current PartRFQ

2903299

Phoenix ContactIn Stock: 10122903299 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 2903302 is determined by the following critical parameters:

• Coil Voltage: 120VAC (must match exactly)
• Mounting Type: DIN Rail (must match exactly)
• Coil Current: 23 mA (must match exactly)
• Coil Type: Non Latching (must match exactly)
• Termination Style: Screw Terminal (must match exactly)
• Operating Temperature Range: -40°C ~ 50°C (must match or exceed)
• Contact Material: Silver Nickel (AgNi) (must match exactly)
• Coil Resistance: 5.22 kOhms (must match exactly)

The Phoenix Contact 2903299 qualifies as a substitute component. While it differs in contact form (3PDT vs. DPDT) and contact rating (6A vs. 7A), these variations remain within acceptable substitution parameters for applications where the higher contact configuration and lower current rating do not create functional conflicts. Both components share identical coil specifications, mounting architecture, and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2903299 is the identified substitute for the obsolete 2903302. Selection should be based on the following factors:

Product Status: The 2903302 is obsolete, while the 2903299 maintains active product status, ensuring ongoing availability and manufacturer support.

Compliance: Both components are RoHS compliant. The 2903299 carries ROHS3 compliance certification, representing current regulatory alignment. The 2903299 additionally holds REACH Unaffected status, providing enhanced environmental documentation.

Functional Equivalence: Identical coil specifications (120VAC, 23 mA, 5.22 kOhms, non-latching), matching operating parameters (15 ms operate time, 20 ms release time), and equivalent environmental ratings (-40°C ~ 50°C) establish functional parity between components.

Contact Configuration Variance: The 2903299 provides 3PDT (3 Form C) configuration versus the 2903302's DPDT (2 Form C). Applications requiring only two independent switching circuits can utilize the additional contact set of the 2903299 without functional impact. The 6A contact rating of the 2903299 versus the 7A rating of the 2903302 represents a reduction in current capacity; applications operating at or below 6A experience no limitation.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2903299 directly replace the 2903302 in existing installations?

A: Direct replacement is possible when circuit design accommodates the 3PDT contact configuration and operates within the 6A current rating. The identical coil voltage, current draw, timing characteristics, and environmental specifications ensure electrical and mechanical compatibility within DIN rail mounting systems.

Q: What is the significance of the contact form difference between DPDT and 3PDT?

A: DPDT (2 Form C) provides two independent changeover contacts. 3PDT (3 Form C) provides three independent changeover contacts. Applications utilizing only two contacts can operate with the 3PDT configuration without modification. Unused contacts remain available for future circuit expansion.

Q: Does the 6A contact rating of the 2903299 create limitations compared to the 7A rating of the 2903302?

A: The 2903299 contact rating of 6A establishes the maximum continuous current per contact set. Applications operating at or below 6A per contact experience no functional limitation. Applications requiring current capacity exceeding 6A per contact require alternative component selection.

Q: Are there packaging differences between these components?

A: The 2903302 is listed with packaging designation "-" (not specified). The 2903299 is supplied in Bulk packaging. Both components utilize identical DIN rail mounting and screw terminal termination, ensuring mechanical compatibility regardless of packaging format.

Q: What compliance advantages does the 2903299 provide?

A: The 2903299 carries ROHS3 Compliant and REACH Unaffected certifications, representing current environmental and regulatory alignment. The 2903302, classified as obsolete, may not receive ongoing compliance updates. For new designs and long-term system deployments, the 2903299 provides enhanced regulatory documentation and manufacturer support continuity.

Q: Are the coil specifications identical between these relays?

A: Yes. Both components feature 120VAC coil voltage, 23 mA coil current, 5.22 kOhms coil resistance, and non-latching coil type. Identical coil specifications ensure equivalent control circuit requirements and power consumption characteristics.