Why Choose the WAGO 750-624/020-002 Field-Side Power Supply Filter Module?
The WAGO 750-624/020-002 is a specialised field-side power supply filter and surge protection module designed for the WAGO I/O System 750 and 753. It protects the 24 V DC field supply from switching overvoltages and electrical disturbances, ensuring reliable operation of distributed automation systems and connected I/O modules.
This module integrates transient suppression and surge filtering to protect DC supply lines from high-energy disturbances caused by inductive loads, switching devices and electromagnetic interference. The module is particularly suited to installations requiring certified operation in demanding environments such as marine and offshore automation systems. :contentReference
The 750-624/020-002 variant also includes ground fault diagnostics, allowing engineers to monitor insulation conditions within the field supply circuit. The module can generate alarms when leakage resistance falls below defined thresholds, helping maintain safe and reliable operation of automation equipment. :contentReference
Key Advantages
- Protects 24 V DC field supply lines from switching surges and voltage spikes.
- Integrated transient suppression for inductive load switching disturbances.
- Provides ground fault diagnostics for insulation monitoring systems.
- Improves system reliability and EMC stability in automation networks.
- Certified for demanding environments such as marine and offshore installations.
- Compact 12 mm DIN rail module suitable for dense control cabinets.
Key Features
- Field-side surge protection and filter module.
- Nominal voltage: 24 V DC.
- Higher electrical isolation for harsh industrial environments.
- Ground fault monitoring with diagnostic output.
- 3 incoming and 3 outgoing power jumper contacts.
- LED indicators for supply voltage and ground fault alarms.
- CAGE CLAMP spring terminals for reliable wiring.
Industrial Automation Power Protection
Industrial automation systems often operate in electrically noisy environments where switching inductive loads and motor drives introduce voltage transients onto DC power lines. These disturbances can disrupt communication or damage sensitive control electronics.
The WAGO 750-624/020-002 filter module protects distributed I/O systems by suppressing surge voltages and filtering disturbances on the 24 V field supply. Its ground fault monitoring capability also supports insulation monitoring systems commonly used in marine, offshore and safety-critical installations. :contentReference
Typical Applications
- Distributed PLC and fieldbus I/O systems.
- Industrial machine control panels.
- Marine and offshore automation installations.
- Hazardous-area automation systems requiring insulation monitoring.
- Industrial environments with high electromagnetic interference.
