Wiring
• Terminal blocks are rated for two No. 12-
22AWG (0.5-2.5mm
2
)
wires per terminal.
• Strip 3/8" (10mm) of insulation from wires.
• Wiring Diagram A shows a GRX-TVI wired from
one distribution panel. If the power requirement
of the complete system is less than a circuit
breaker rating, one feed can be jumpered inside
the enclosure (As shown).
• Wiring Diagram B shows the GRX-TVI wired
from two separate distribution panels which may
be different phases or voltages.
Wiring Diagram A
3/8"
10mm
100-
120V
220-
240V
N
2
DH
2
H
1
N
1
N
1
SH
1
+–
Max 0.3A
0-10V
Control Inputs Load Switched
H
2
100-
277V
Zone 4
Zone 6
Zone 2
1 2 3 4
Zone 3
Zone 5
Zone 1
GRAY
PURPLE
BLACK
WHITE
NEUTRAL
Distribution
Panel A
GRX-3000
Series Control
GRX-TVI
GROUND
CONNECTIONS
NEUTRAL
0-10 Volt Ballast
GROUND
GRAY
PURPLE
BLACK
WHITE
Hot 2 - 100-120V
Neutral 2
Dimmed Hot
Hot 1
Neutral 1
Neutral 1
Switched Hot
0-10 Volt
To additional ballasts
0-10V Control Signal Wires - DO NOT
CONNECT TO LINE VOLTAGE. Lutron is
not liable for damage due to miswiring.
SWITCHED HOT
NEUTRAL
0-10 Volt Ballast
GROUND
LED
SW Hot/Live 2
SSA
Class 2
Neutral
Hot/Live 2
DIMMED HOT
GROUND
HOT 120V
CU WIRE ONLY
SW Hot/Live 1
Hot/Live 1
HOT 120V
Hot 2 - 220-240V
Use 20A Maximum
circuit breaker/MCB
GROUND
N
2
• Use the internal terminal block label to see
where to land wires. H
2
has a 100-120V
connection or a 220-240V connection. Use the
one corresponding to line voltage. The label
shows two separate Hot terminals (H
1
& H
2
). H
1
is the Hot feed to power the lighting load. H
2
is
the Hot feed that powers internal circuitry of the
GRX-TVI.
Note 1: Not all terminal blocks receive a
connection.
Note 2: H
2
must be the same phase as
Dimmed Hot (DH).
• Applies only in the USA: Class 2, 0-10V wiring
must be separated by a barrier from the power
wiring. Enter the Class 2 wires thru the knockout
adjacent to the 0-10V terminal blocks. The
Nomex
®
barrier is flexible to allow access to the
terminals. The barrier must be in place when
installation is complete.
Important Installation Information
• Install in accordance with all national and local
electrical codes.
• Check for short circuited loads during new
installations before wiring the GRX-TVI.
CAUTION: Multiple feeds may enter this
enclosure. Locate and lock each feed
breaker in the OFF position before
wiring the product.
• Proper short circuit and overload protection
must be provided at the distribution panel. You
can use up to a 20A maximum circuit breaker or
equivalent with adequate short circuit breaking
capacity for your installation.
Legend for Terminal Block Label
(Positioned directly under the terminal blocks)
H
2
240V
Power input for GRX-TVI control (220-240V)
H
2
120V
Power input for GRX-TVI control (100-120V)
(Only use one input according to Input Voltage)
N
2
Neutral for GRX-TVI control
DH
2
GRAFIK Eye 3000 Series Control Lighting Zone
connection (Phase Control Input to GRX-TVI)
H
1
Power input for lighting load
N
1
Neutral for lighting load
SH Switched output to power lighting load
+ - 0-10V control signal wires
Diagram shows wiring for 120V
control (100-120V terminal
connection). 220-240V controls
use 220-240V terminal block.
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