Weidmüller RCM Series Plug-in Industrial Relays & RIM Series Plug-in Functional Modules
RCM are RIDERSERIES plug-in industrial relays; RIM are pluggable LED & surge suppression modules specially matched for RCM relay sockets.
Model Code Definition
- RCM Series Relay Coding
- RCM270: 2CO (2 changeover contacts)
- RCM370: 3CO (3 changeover contacts)
- RCM570: 4CO (4 changeover contacts)
- Suffix numeric: Rated coil operating voltage
- 024 = 24VDC; 730 = 230VAC
- Standard configuration: built-in manual test button, AgNi alloy contacts
- RIM Series Plug-in Functional Module Coding
- RIM2: For 2CO relay sockets
- RIM3: For 3CO / 4CO relay sockets
- Voltage marking: Operating voltage range
- VDC = Direct Current only
- VUC = Universal AC/DC
- Core function: LED status indicator + integrated suppression circuit
- DC version: freewheeling diode
- AC/UC version: RC snubber circuit
Full Model Parameter Table
表格
| No. | Model | Electrical Specification | Configuration | Core Features & Application Scenario |
|---|---|---|---|---|
| 1 | RCM270024 | 24VDC coil, 2CO contacts | Standard relay with test button | Dual-channel signal switching for 24VDC automation control loops; small solenoid valve and indicator light driving |
| 2 | RCM270730 | 230VAC coil, 2CO contacts | Standard relay with test button | 230VAC auxiliary circuit dual-channel control for fans, lighting and AC contactor interlocks |
| 3 | RCM370024 | 24VDC coil, 3CO contacts | Standard relay with test button | Three independent signal channels; multi-group equipment interlock control inside machine tool cabinets |
| 4 | RCM570024 | 24VDC coil, 4CO contacts | Standard relay with test button | Four-channel signal isolation & amplification; match PLC multi-point output expansion |
| 5 | RCM570730 | 230VAC coil, 4CO contacts | Standard relay with test button | 230VAC four-way auxiliary load control for packaging and logistics equipment |
| 6 | RIM 2 24/60VDC | 24–60VDC, for 2CO sockets | LED + freewheeling diode | Suppress reverse EMF of DC inductive loads, visual coil status display; 24/48/60VDC universal DC relay sockets |
| 7 | RIM 2 6/24VDC | 6–24VDC, for 2CO sockets | LED + freewheeling diode | Wide-range low-voltage DC protection module for standard 24VDC control relays |
| 8 | RIM 3 110/230VAC | 110–230VAC, for 3/4CO sockets | LED + RC snubber | AC surge suppression for mains voltage relays; eliminate interference from AC inductive loads |
| 9 | RIM 3 110/230VUC | 110–230V AC/DC universal, for 3/4CO sockets | LED + RC snubber | Universal AC/DC high voltage module, one part fits both AC and DC 110~230V coils |
| 10 | RIM 3 6/24VUC | 6–24V AC/DC universal, for 3/4CO sockets | LED + suppression circuit | Low voltage universal module for mixed 24V AC/DC control cabinet relay rows |
Product General Introduction
Core Technical Advantages
- RCM industrial relays: Complete contact specifications of 2CO / 3CO / 4CO; equipped with manual test button for offline maintenance inspection. AgNi contacts resist electrical wear for long service life.
- Multiple coil voltage options cover mainstream industrial control voltages 24VDC and 230VAC; plug-and-play design, compatible with corresponding SCM-I series relay sockets.
- RIM plug-in functional modules: Tool-free direct insertion into relay sockets, no wiring modification required. Integrate status LED and surge suppression to protect front-end control modules.
- Voltage range classification: DC dedicated versions adopt freewheeling diodes; AC and universal UC versions use RC absorption circuits to adapt different power supply types.
- Perfect matching combination: RIM2 fits all 2CO relay bases; RIM3 fits 3CO and 4CO relay bases, convenient for standardized cabinet spare parts management.
- All products use flame-retardant plastic housing, pass CE, UL and RoHS certifications, suitable for TS35 DIN rail installation in control cabinets.
Application Scenarios
Widely deployed in automation control cabinets, machine tools, packaging machinery, new energy equipment and water treatment systems:
- RCM relays: PLC signal electrical isolation, signal amplification, simultaneous control of multiple independent small loads such as solenoid valves, indicator lamps and auxiliary contactors.
- RIM plug-in modules: Upgrade basic relay sockets with status indication and anti-surge protection; suppress reverse electromotive force generated by inductive coils to avoid damage to PLC output points.
- Universal VUC type RIM modules are preferred for equipment with mixed AC/DC control circuits to reduce spare part types.
- Low voltage 6–24V modules for standard 24VDC automation equipment; high voltage 110/230V variants for mains AC control loops.
Weidmüller RCM Series Plug-in Industrial Relays & RIM Series Plug-in Functional Modules
Created on：2026-07-15 09:08
