Radio relay actuator 10A 250V AC. Normally closed or normally open, not potential-free. Standby loss is only 0.4 watts. Designed for installation. Dimensions: 49 x 51 mm, 20 mm deep. The connection terminals are plug terminals for conductor cross-sections from 0.2 mm² to 2.5 mm². With the convenient tip technology, up to 32 radio buttons and radio window contacts can be learned. Bidirectional radio can be activated. Contact switching at zero crossing. Supply, switching, and control voltage locally 230 V. In the event of a power failure, the switching position is retained. When power is restored, it will be defined as switched off. After installation, wait for the automatic short synchronization before connecting switched consumers to the network. In addition to the radio control input via an internal antenna, this radio actuator can also be locally controlled with a possibly previously installed conventional 230 V control button. A glow lamp current is not permitted. During the learning process, the contact function in standby can be set as normally closed or normally open. If the contact closes with at least one window open, it can activate exhaust hoods or similar devices, or it can trigger an alarm. If the contact opens with at least one window open, it can turn off heating or air conditioning units. Multiple radio window contacts are interconnected, and the last learned radio window contact determines the function.