Room thermostat insert with sensor connection, without extension input with sensor connection for LB Management attachments item no.: .. 1790 D .. for KNX RF attachments item no.: .. 10911 ST RF .., .. 10921 ST RF .. Intended use Switching electric underfloor heating and electrothermal actuators Operation with room temperature controller attachment Installation in device box with dimensions according to DIN 49073 Product features Pulse width modulation (PWM) or two-point control (on/off) Remote sensor (item no.: FF NTC, FF 7.8) can be connected Input for switching to cooling mode Interrupts the heating process after 60 minutes (Overheating protection of a heater) Nominal voltage: AC 230 V ~ Mains frequency: 50/60 Hz Standby power depending on the attachment: approx. 0.1 ... 0.5 W Switching current 230 V AC1: 10 mA ... 16 A Connected load: max. 3,600 W Connection single-wire: 1 x 0.5 ... 4.0 mm2 2 x 0.5 ... 2.5 mm2 fine-wire without wire end ferrule: 1 x 0.5 ... 4.0 mm2 2 x 0.5 ... 2.5 mm2 fine-wire with wire end ferrule: 1 x 0.5 ... 4.0 mm22 x 0.5 ... 1.5 mm2 Number of actuators: 1 ... 10 Ambient temperature: 5 ... +45 °C
