The ROSS 400C79 is a solenoid coil designed for use with ROSS pneumatic control valves. This coil provides reliable electromagnetic actuation for valves in industrial automation, process control, and hazardous area applications. With its robust construction and low power consumption, the 400C79 ensures consistent valve operation in demanding environments.
Voltage Rating: 24 V DC (standard)
Power Consumption: 4 W (typical)
Duty Cycle: 100% ED
Insulation Class: Class F (155°C)
Electrical Connection: DIN 43650 Form A (3-pin)
Protection Rating: IP65 (with mating connector)
Ambient Temperature: -20°C to +60°C
Housing Material: Glass-filled nylon
Certifications: ATEX II 3G Ex nA IIC T4 Gc, IECEx
Compatible Valves: ROSS Series 27, 35, 36, 37 pneumatic valves

The 400C79 features a molded coil encapsulated in a glass-filled nylon housing, providing excellent mechanical strength and resistance to chemicals and moisture. The DIN 43650 connector allows quick electrical connection and replacement without tools. The coil's low power consumption minimizes heat generation, extending coil life and reducing energy costs.
This solenoid coil carries ATEX and IECEx certifications for use in Zone 2 hazardous areas (gas) and Zone 22 (dust). The "Ex nA" protection type ensures the coil does not produce arcs or sparks during normal operation, making it suitable for environments with flammable gases or combustible dust. The certification includes T4 temperature class (135°C maximum surface temperature).
The ROSS 400C79 is used in pneumatic control systems across chemical plants, oil and gas facilities, paint booths, grain handling, and pharmaceutical manufacturing. It is also found in industrial automation, packaging machinery, and conveyor systems where pneumatic valves control cylinders, grippers, and material handling equipment.



