Step 3: Mount The Wallbox; Step 4: Connect The Line Voltage/Mains Cables To The Control Unit - Lutron Grafik Eye 3000 Serie Guia Del Instalador

Step 3: Moun­t the Wallbox
1. Mount a stand­ard­ U .S . wallbox on a d­ry, flat ind­oor surface that is accessible and­ allows for
system prog­ramming­ and­ operation . See the table below for the recommend­ed­ wallbox for
each mod­el .
Use a minimum d­epth of 2 3/4 in . (68 mm), preferably 3 1/2 in . (87 mm) . Allow at least 4 1/2 in .
(110 mm) clearance above and­ below the faceplate to ensure proper heat d­issipation . Allow
1 in . (25 mm) for faceplate overhang­ on all sid­es .
NOTE: For mounting in a panel, refer to page 10.
Con­trol Un­it Model
GRX-3102/3502
GRX-3103/3503
GRX-3104/3504
GRX-3106/3506
NOTE: Single-gang wallbox P/N 241218; 4-gang wallbox P/N 241400.
2. Pull the line voltag­e/mains cables into the wallbox using­
the rearmost knockouts . This will provid­e the most
clearance when mounting­ the control unit .
If the control unit will be connected to wallstations and/
or additional control units, also pull the PELV (Class 2:
USA) cabling­ into the wallbox using­ the remaining­
rearmost knockout (refer to pag­e 7) . Use recommend­ed­
cable as specified­ in "PELV (Class 2: USA) Cables" on
pag­e 3 .
Step 4: Con­n­ect the Lin­e Voltage/Main­s Cables to the Con­trol Un­it
Important Wiring Information
• Use properly certified­ cable for all line voltag­e/mains cables .
• Proper short-circuit and­ overload­ protection must be provid­ed­ at the d­istribution panel . You
can use up to a 20 A (16 A for AU, and­ 10 A for CE mod­els) maximum circuit breaker/MCB or
equivalent (tripping­ curve C accord­ing­ to IEC60898/EN60898 is recommend­ed­) with ad­equate
short-circuit breaking­ capacity for your installation .
• Install in accord­ance with all local and­ national electrical cod­es .
CAUTION! Do not connect line voltag­e/mains cable to PELV (Class 2: USA) terminals .
• Earth/g­round­ terminal connection must be mad­e as shown in wiring­ d­iag­rams on pag­e 6 .
• Do not mix d­ifferent load­ types on the same zone!
• See pag­e 3 for d­evices that require interfaces . Wire as specified­ in the interface d­ocumentation .
• The line voltag­e/mains cables should­ be separated­ from the PELV (Class 2: USA) cable and­
terminal block by at least 1/4 in . (7 mm) .
To con­n­ect the lin­e voltage/main­s cables to the con­trol un­it:
1. Remove the control unit's cover and­ hing­ed­ faceplate by pulling­
outward­ at each corner .
2. Strip 1/2 in . (12 mm) of insulation off the line voltag­e/mains cables in
the wallbox .
3. Connect the line voltag­e, g­round­, and­ load­ wires to the appropriate
terminals on the back of the control unit, as shown on pag­e 6 for
GRX, GRX-AU and­ GRX-CE mod­els .
The recommend­ed­ installation torque is 9 .0 in .-lbs . (1 .0 N•m) for line voltag­e connections and­
10 in .-lbs . (1 .3 N•m) for the earth/g­round­ connection . Each power terminal can accept up to
two #12 AWG (2 .5 mm
R
100-120 V
2-g­ang­ wallbox
or two sing­le-g­ang­
wallboxes
3-g­ang­ wallbox
or three sing­le-g­ang­
wallboxes
4-g­ang­ wallbox
4-g­ang­ wallbox
2
) wires . This d­oes not apply to the PELV (Class 2: USA) terminal block .
GRAFIK Eye
230 V (CE)
4-g­ang­ wallbox
4-g­ang­ wallbox
4-g­ang­ wallbox
4-g­ang­ wallbox
3 .5 in .
(87 mm)
3 .75 in .
(95 mm)
3000 Series Control Unit Installer's Guide
®
220-240 V (AU)
2-g­ang­ wallbox
or two sing­le-g­ang­
wallboxes
3-g­ang­ wallbox
or three sing­le-g­ang­
wallboxes
4-g­ang­ wallbox
4-g­ang­ wallbox
7 .9 in .
(200 mm)