Electronic, programmable 7-channel control. Each channel can be individually set up with three control modes - with temperature sensor, time-proportional power control without sensor and manual on/off with time limit. The channel inputs can be selected via software between 8 types of temperature sensors, including NTC 15 kOhm at 25°C. The opto-isolated serial interface Modbus RS485 offers the possibility of BMS control. Mounting DIN rail, according to EN 60715, voltage: 85 - 250 V, 50 - 60 Hz, protection class: IP40 only on front cover - line sensor type: 15 kOhm at 25°C