Busch rotary dimmer, flush-mounted installation boxes and inserts, inserts for Busch dimmers, Busch rotary dimmer flush-mounted, RL, 200-700 W With rotary operation, pressure sequence changeover switch and soft locking, with phase control. For incandescent lamps, 230 V halogen lamps and low-voltage halogen lamps with conventional transformer. Short-circuit proof, overload proof. With adjustable minimum brightness. Without central plate. Without spreader. Nominal voltage: , +10 % / -10 % Nominal frequency: 50 Hz Nominal power: 200 - 700 W/VA IEC 60669-2-1, British Standard EN 60669-2-1