PLC-RSC-230UC/21-21AU relay module | Phoenix Contact PLC-INTERFACE
The PLC-RSC-230UC/21-21AU relay module is a Phoenix Contact PLC-INTERFACE relay module for control cabinet switching. It combines a PLC-BSC basic terminal block with screw connection and a plug-in miniature relay. Also, it uses multi-layer gold contacts for reliable low-level signal switching in automation systems.
PLC-RSC-230UC/21-21AU relay module overview
First, Phoenix Contact lists this product under item number 2967141. The module mounts on NS 35/7.5 DIN rail and provides 2 changeover contacts. In addition, it supports 230 V AC and 220 V DC input voltage. Therefore, it fits control panels that need compact relay coupling between field devices and PLC or DCS signal circuits.
Control cabinet selection table
| Model |
PLC-RSC-230UC/21-21AU |
| Brand |
Phoenix Contact |
| Product family |
PLC-INTERFACE |
| Contact type |
2 changeover contacts |
| Input voltage |
230 V AC / 220 V DC |
| Connection |
Screw connection, DIN rail mounting |
Where this Phoenix Contact relay fits
Engineers use this module for signal isolation, relay coupling, and interface switching. For example, it can link PLC outputs, control circuits, alarms, indicators, and auxiliary field devices. Also, the compact 14 mm width helps panel builders save cabinet space. The yellow LED gives clear operating status, so maintenance teams can check the relay state faster during troubleshooting.
Ordering notes
Before ordering, check the complete part number and item number on the module label. Next, confirm the input voltage, contact load, wiring method, DIN rail space, and replacement relay requirement. Also, compare the contact material with your signal level. This step matters because gold-plated contacts suit small signal switching.
HKXY Instruments supplies Phoenix Contact relay modules, terminal blocks, PLC interface modules, power supplies, surge protection devices, PLC parts, DCS parts, sensors, and industrial automation spare parts. For current price, stock, and lead time, contact us through
HKXY Instruments contact page.
Official Phoenix Contact reference:
PLC-RSC-230UC/21-21AU official product page.
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