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531
Grid Plus Dimmer Switches
57
59
25
57
59
49
Dimensions
Do not connect more than the maximum number of transformers stated for each
dimmer. Grid Plus dimmer switch ratings are for each dimmer when installed singly.
In multiple installations, each dimmer switch must be de-rated – see Table 1 above.
N
L
L
1
L
2
C
Two-way switching
(only one dimmer can be used)
L
1
L
2
C
Load
DIMMER
Supply 230V a.c. - 50Hz
2 way switch
L
N
One-way switching
L
1
L
2
C
Load
DIMMER
Supply 230V a.c. - 50Hz
Wires must be connected to the correct dimmer terminals.
DO NOT connect earth to dimmer.
L
N
Fluorescent dimmer
1
2
HF Fluorescent
Ballast
3
+
–
Wires must be connected to the correct dimmer terminals.
DO NOT connect earth to dimmer.
1-10V
DIMMING
CONTROLLER
Wiring Diagrams
TABLE 2 – OVERLOAD REACTION
40-400W CIRCUIT
40-300W CIRCUIT
COMMENTS
Overload management
Overload management
This is the
minimum
controlled voltage
40-400W nominal
40-220W nominal
40-500W function without dimming
40-275W function without dimming
> 500-700W dim to 68V±8V r.m.s.
> 275-375W dim to 68V±8V r.m.s.
> 700W switch off
> 375W switch off
1 gang
2 gang
TABLE 3 – GRID PLUS INTELLIGENT DIMMER SWITCHES
RATING
MAX NO. OF
TRANSFORMERS
1 module dimmer switch
40-220W (LV rating 40-180VA)
3
2 module dimmer switch
40-400W (LV rating 40-320VA)
5
TABLE 1 – LOAD ADJUSTMENT FOR GRID PLUS DIMMERS
FRONTPLATE SIZE, NUMBER OF GANGS
2
3
4
6
8
9
12
18
24
Max Power/Load per Row – Tungsten GLS Lamps – W
400
480
480
480
480
480
480
720
720
Max Power/Load per Row – Mains Tungsten Halogen
Lamps or Low Voltage Transformers – W or VA
320
380
380
380
380
380
380
580
580
Max Power/Load for Total Plate – Tungsten GLS Lamps – W 400
480
480
740
740
940
940
1440
1800
Max Power/Load for Total Plate – Mains Tungsten Halogen
Lamps or Low Voltage Transformers – W or VA
320
380
380
600
600
750
750
1155
1440
K4511 – No derating is required for LED load types.
Fluorescent Dimmer
MK Fluorescent dimmers are low voltage
controllers that require only a single two-core wire
connection to 1-10V controllable ballast inputs.
The dimmer operates by applying a variable
resistance to the ballast 1-10V control input.
We recommend using a separate on/off switch
to isolate the luminaire(s) in use.
Features
Preset adjust to set minimum light level. Preset
adjust for use with multiple dimmable ballasts.
Up to four ballasts can be connected to one
dimmer.
Grid Plus Technical
WIRING DEVICES
MODULAR