ACM-250-LD BUILD-IN DIMMER
EN
1. Disable mains power
Always turn OFF the mains power (In the fuse box) before you begin the installation or removal of
this product. The ACM-250-LD can be used for either two wall switches connected with one lamp
(stairwell/hotel circuit) or for one single wall switch connected to one lamp.
2. Loosen ceiling lights
Remove the existing lighting/equipment from the ceiling, leaving the wires connected to the lighting.
Lighting/equipment may not exceed the maximum wattage. If there is no live wire (brown) present,
it must be installed. Wire colors may vary per country. Consult an electrician if in doubt about wire
colours.
3. Warning for stripping wires
3A. Make sure the wires are stripped for 5mm.
3B. When connecting the wires to the ACM-250-LD make sure the stripped wires are pressed firmly in
the module, no exposed wires are visible and the wires cannot touch each other. This can cause a
short circuit.
4. Disconnect the switch wire and neutral wire
To install the ACM-250-LD disconnect the switch wire (black) and neutral wire (blue) of the lamp
(Disconnect from terminal block or cut the wires if necessary)
5. Connect the live wire to a terminal block
Connect the live wire (brown) from the ceiling box to a terminal block. Connect the other end of the
live wire (brown) also back into the same terminal block.
6A. Connect the wires to the module
• Connect the neutral wire (blue) from the ceiling box to the outer [N] contact of the module.
• Connect the switch wire (black) from the ceiling box to the [S] contact.
• Connect the neutral wire (blue) from the lamp to the middle [N] contact.
• Connect the switch wire (black) from the lamp to the [
• Connect one new live wire (brown) from the live wire (brown) terminal block to the [L] contact.
• Tighten the terminal screws firmly.
1
L L
] contact.