Control devices
Their role is to control light fitting switching on and off by switching the conductor(s).
Their technology allows a very large number of switching operations (approximately 100,000) to be performed without adversely affecting their performance, in normal operating conditions.
The installation of a control relay (impulse relay, contactor) allows:
remote control of a high-power lighting circuit;
sophisticated functions (central control, timer, programming, etc.).
Control of a three-phase circuit.
Simplification of cabling through the use of controls
Example : Controled by switches without relay
Conventional cabling with two-way switches and four-way switch(es).
Example : Controled by power relays (contactor, impulse relay, Reflex iC60, RCA)
Lower investment costs:
fewer cables,
small control circuit cross-section,
faster installation (simplified cabling).
Upgradeable circuits:
easy to add a control point,
potential for adding auxiliaries (time delay, timer, centralised multi-level control, etc. page 34) and management functions.
Energy savings:
no power consumption in the control circuit (impulse relay),
automated management of switching on/off (movement detector, programmable time switch, light sensitive switch, etc....
