Phoenix Contact PSR 2981402 Safety Relay - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2981402 is a safety relay module configured as a 7PST (7 Pole Single Throw) with 5 Form A and 2 Form B contacts, rated for 6A at 120VAC/DC coil voltage. This relay is designed for DIN Rail mounting and operates within the PSR series safety relay platform. The part carries Last Time Buy status, indicating discontinued production. Identification of equivalent substitute parts is necessary to ensure continued availability and system continuity for applications requiring this specific safety relay configuration.

Substiute Parts

2981402

Phoenix ContactIn Stock: 7502981402 Datasheet

Current PartRFQ

2963747

Phoenix ContactIn Stock: 8412963747 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 2981402 is determined by the following critical parameters that must remain constant or compatible:

• Contact configuration: 7PST with 5 Form A and 2 Form B contacts
• Contact current rating: 6 A minimum
• Mounting interface: DIN Rail
• Termination method: Screw Terminal
• Series platform: PSR safety relay series
• Contact material composition: Silver Tin Oxide (AgSnO)
• Regulatory compliance: ROHS3 and REACH requirements

The primary variable parameter in substitute selection is coil voltage. The 2981402 operates at 120VAC/DC; substitute parts may operate at different coil voltages provided all other electrical and mechanical parameters remain within acceptable ranges for the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2963747 is the manufacturer-recommended substitute for the 2981402. Both parts maintain identical contact configurations, current ratings, mounting interfaces, and termination methods within the PSR series platform.

The 2963747 is currently in Active product status with 754 units in stock, whereas the 2981402 carries Last Time Buy designation with limited availability. Selection of the 2963747 ensures long-term supply continuity and access to current manufacturing batches.

The primary design consideration for substitution is coil voltage: the 2963747 operates at 24VAC/DC compared to the 2981402 at 120VAC/DC. This difference requires circuit-level evaluation to confirm compatibility with the control voltage supply in the target application. The switching voltage maximum of the 2963747 (230VAC/230VDC) is marginally lower than the 2981402 (250VAC/250VDC), which must be verified against load voltage specifications.

Both parts maintain ROHS3 compliance and REACH regulatory status, ensuring equivalent environmental and regulatory positioning.

Frequently Asked Questions (FAQ)

Q: Can the 2963747 directly replace the 2981402 without circuit modifications?

A: Direct replacement requires verification that the application control circuit supplies 24VAC/DC. If the original circuit supplies 120VAC/DC, the coil voltage difference necessitates circuit redesign or use of a step-down transformer.

Q: Are the contact configurations identical between these parts?

A: Yes. Both parts feature 7PST configuration with 5 Form A (normally open) and 2 Form B (normally closed) contacts, each rated for 6A switching capacity.

Q: What is the impact of the different switching voltage maximums?

A: The 2963747 maximum switching voltage is 230VAC/230VDC versus 250VAC/250VDC for the 2981402. Applications operating loads at or above 230V must confirm the 2963747 meets load voltage requirements.

Q: Do both parts use identical contact materials?

A: Yes. Both the 2981402 and 2963747 use Silver Tin Oxide (AgSnO) contact material, ensuring equivalent electrical performance and contact life characteristics.

Q: What is the significance of the different coil currents (11 mA vs. 47 mA)?

A: The coil current difference reflects the different coil voltage designs. The 24VAC/DC coil in the 2963747 requires higher current draw than the 120VAC/DC coil in the 2981402 to achieve equivalent magnetic force. This affects control circuit power supply sizing.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate within -20°C to 55°C, providing identical thermal performance specifications.

Q: Why is the 2981402 marked as Last Time Buy?

A: Last Time Buy status indicates Phoenix Contact has discontinued production of this model. The 2963747 represents the active product line continuation within the PSR series.