Phoenix Contact 2987312 General Purpose Relay - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 2987312 is a general purpose relay with DPST-NO (2 Form A) contact configuration, rated for 4.6A at 24VDC coil voltage. This relay is designed for DIN rail mounting and features a diode and lighted indicator. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component replacement in existing installations.

Substiute Parts

2987312

Phoenix ContactIn Stock: 11972987312 Datasheet

Current PartRFQ

2901639

Phoenix ContactIn Stock: 7932901639 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 2901639 qualifies as a substitute based on the following matching electrical and mechanical parameters:

• Identical coil voltage (24VDC) and coil current (7 mA)
• Identical contact rating (4.6 A) and switching voltage capability (250VAC, 30VDC - Max)
• Identical coil resistance (3.43 kOhms) and coil type (Non Latching)
• Identical operating temperature range (-20°C ~ 60°C)
• Identical contact material (Silver Nickel AgNi)
• Identical termination style (Spring Terminal)
• Identical operate and release times (4 ms / 6 ms)
• Same mounting type (DIN Rail)

The primary difference is the contact form configuration: the 2901639 provides SPST-NO (1 Form A) x 2 instead of DPST-NO (2 Form A). Both configurations deliver equivalent switching capability with two independent contact sets rated at 4.6A.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 2901639 is the active production substitute for the obsolete 2987312. Both relays share identical electrical specifications including coil voltage, current rating, switching capability, and timing characteristics. The 2901639 offers the advantage of active product status with current manufacturing support and ROHS3 compliance certification. The contact form difference (SPST-NO x 2 versus DPST-NO) does not affect electrical performance, as both configurations provide two independent 4.6A switching paths. The 2901639 includes socket compatibility as an additional feature. Both parts maintain identical DIN rail mounting, spring terminal connections, and operating temperature ranges suitable for industrial control applications.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 2901639 directly replace the 2987312 in existing installations?

A: Yes. Both relays provide identical electrical performance with matching coil voltage (24VDC), contact current rating (4.6A), switching voltage (250VAC/30VDC), and timing characteristics (4ms operate, 6ms release). The contact form difference (SPST-NO x 2 versus DPST-NO) does not affect functional compatibility, as both deliver two independent switching paths.

Q: What is the difference between DPST-NO and SPST-NO x 2 contact configurations?

A: DPST-NO (Double Pole Single Throw - Normally Open) provides two Form A contacts in a single integrated configuration. SPST-NO x 2 (Single Pole Single Throw - Normally Open, quantity 2) provides two independent Form A contacts. Both configurations deliver equivalent switching capability with two 4.6A contact sets.

Q: Are there compliance differences between the two parts?

A: The 2987312 carries RoHS Compliant certification, while the 2901639 carries ROHS3 Compliant certification. Both meet current environmental compliance requirements. The 2901639 additionally carries REACH Affected status. Both parts maintain EAR99 export classification and MSL 1 (Unlimited) moisture sensitivity rating.

Q: Does the 2901639 include socket compatibility?

A: Yes. The 2901639 includes socket compatibility as a standard feature, whereas this feature is not specified for the 2987312. This provides additional flexibility for modular installation approaches.

Q: Are the DIN rail mounting specifications identical?

A: Yes. Both relays use identical DIN rail mounting type and spring terminal termination style, ensuring mechanical compatibility in existing panel installations.