PHOENIX CONTACT UMK-8 RELS/KSR-G24/21/PLC 2974914

Phoenix Contact 8-Channel Relay Interface Module

Description

This is a UMK-8 RELS/KSR-G24/21/PLC relay module from Phoenix Contact, part number 2974914. It serves as a reliable interface between your controller and actuators, featuring eight independent channels. Each channel is equipped with a high-quality, pluggable Schrack power relay, allowing for easy maintenance. The module is designed for standard DIN-rail mounting and includes LED status indicators for each channel, simplifying commissioning and troubleshooting. This module is an excellent choice for applications requiring multiple switching operations in a compact form factor.

Specifications

• Manufacturer: Phoenix Contact
• Type: UMK-8 RELS/KSR-G24/21/PLC
• Part Number: 2974914
• Input Voltage: 24V DC
• Number of Channels: 8
• Contact Type: 1 Changeover Contact (SPDT) per channel
• Max Switching Voltage: 250V AC
• Max Continuous Current: 16A
• Mounting: DIN Rail
• Connection: Screw Terminals

Label Info

• No. 2974914
• UMK- 8 RELS/KSR-G24/21/PLC
• Ch.No.: 2799786-0

Application

Ideal for use in industrial automation systems as an output interface for PLCs, connecting low-voltage control signals to higher-power loads such as motors, solenoids, lamps, and contactors.

Country of Origin

Made in Germany.

CO2 Impact

Reusing this component saves approximately 14 kg of CO2, which is comparable to driving a car for 70 kilometers. Your choice supports a circular economy and reduces industrial waste.

Availability

This is an obsolete item, but it is in stock and ready for immediate dispatch. Perfect for repairs and maintaining existing installations. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the coil voltage for the relays on this module?

The relays on this UMK-8 RELS/KSR-G24/21/PLC module have a nominal input voltage of 24V DC, as indicated by the “G24” in the part number and the specifications of the installed Schrack RP310024 relays.

Are the individual relays on this board replaceable?

Yes, the eight Schrack relays are plug-in types. They can be individually removed from their sockets on the PCB and replaced if one fails, without needing to replace the entire module. The compatible relay type is Schrack (TE) RP310024 or an equivalent with the same pinout and coil voltage.

How is this module typically connected to a PLC?

This module is designed as a PLC interface. It can be connected via a flat-ribbon cable to a corresponding PLC output card using the multi-pin connector in the center. Alternatively, individual channels can be wired directly to the screw terminals corresponding to each relay’s coil.

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Last Update: Friday, March 13, 2026