Temp. controller with break contact, Z.-piece, rocker switch and LED K.5 stainless steel, painted. Room temperature controller with break contact, central piece, rocker switch and LED, with print, control button with temperature range limitation, with on/off switch and control LED for on, with thermal feedback, with separate connection for night-time reduction, e.g. for actuators closed when de-energized, without spreading claws, with plug-in terminals, neutral conductor required, when the set temperature is reached, the contact opens. Flush-mounted installation, surface/design program. Material: plastic, thermoplastic, shatterproof, halogen-free.