1. Industrial Machine Control - Signal Isolation
The WAGO 859-358 relay module is ideal for providing galvanic isolation between sensitive control signals from PLCs and higher power loads like motor starters or solenoid valves in industrial machinery. Its 230V AC/DC input and 5A/250VAC switching capability ensure robust and safe operation, preventing damage to control circuitry from voltage spikes or back-EMF.
Problem SolvedPrevents damage to control circuitry and ensures signal integrity by isolating different voltage potentials and inductive loads, enhancing system reliability and safety.
Galvanic isolationPLC interfaceLoad switchingInductive loadsSignal integrity230V AC/DC5A/250VACDIN rail
2. Building Automation - Lighting and HVAC Control
In building automation systems, this relay can efficiently switch standard electrical loads such as lighting circuits, fans, or small heating elements. Its compact 6mm width allows for high-density installations in control cabinets, maximizing space utilization. The 230V AC/DC coil and 5A/250VAC switching capacity make it suitable for a wide range of building electrical applications, with a red LED for quick diagnostics.
Problem SolvedEnables efficient switching of multiple lighting zones or HVAC components within limited control cabinet space while providing clear visual feedback for operational status or maintenance.
Building management system (BMS)Lighting controlHVAC controlSpace-saving230V AC/DC5A/250VACStatus indicationDIN rail
3. Process Automation - Status Indication and Alarm Signaling
For process control applications, the WAGO 859-358 serves as a reliable interface for converting high-voltage process signals (e.g., from limit switches or sensors) into lower-voltage signals for PLCs or distributed control systems. It can also activate alarms based on process conditions using its changeover contact, with the integrated red LED providing immediate local status indication.
Problem SolvedProvides reliable signal conversion and interfacing from high-voltage process sensors to control systems, offering clear local visual status of operational states or alarm conditions, and enabling robust alarm management.
Process controlAlarm managementStatus feedbackSignal conversion230V AC/DCDry contactRed LED-40°C to 60°C
