Wallstation circuits are classified as Class 2 circuits
(USA) and PELV circuits (IEC). As Class 2 circuits,
they comply with the requirements of NFPA® 70,
National Electrical Code® (NEC®). As PELV circuits,
they comply with the requirements of IEC 60364-4-
41, VDE 0100 Part 410, BS7671:1992, and other
equivalent standards. When installing and wiring to
these wallstations, follow all applicable national and/
or local wiring regulations. External circuits connected
to input, output, and other communication terminals
of wallstations must be supplied from a listed Class
2 source or comply with the requirements for PELV
circuits, as applicable in your country.
Safety Notes
• Read all instructions carefully before starting
installation.
• Lutron recommends that wallstations be installed by
a qualified electrician.
• Do not connect high-voltage power to low-
voltage ter mi nals. Improper wiring can result in
personal injury or damage to the control or to other
equipment.
• Use only a cloth with warm water and mild soap to
clean faceplates (no chemical cleaners).
Wiring Notes
• System Maximums
— GRAFIK Eye® QS series control units can each
power a maximum of 3 wallstations.
— 610 m (2000 ft.) maximum wiring length
— 0-40 °C (32-104 °F) operating temperature.
— 100 devices per link (seeTouch® QS, Sivoia®
QS, power panel, and GRAFIK Eye QS each
count as one device); 100 zones maximum
per link
• Refer to the system installation guide for power cable
and data ca ble (control link) wiring restrictions and
limitations.
• Control Link Wiring
— Power: Two 1.0 mm
2
(#18 AWG) PELV (Class
2: USA) wires. Connect to terminals 1 and 2.
— Data: Two shielded 1.0 mm
2
(#22 AWG) PELV
(Class 2: USA) wires (twisted, shielded pair).
Connect to terminals 3 and 4.
Lutron offers a one-cable, non-plenum, low-
voltage solution (P/N GRX-CBL-346S-500), and
a one-cable, plenum, low-voltage solution (P/N
GRX-PCBL-346S-500). Check availability outside
the U.S.
•
Sensor/Contact Closure Input Connector Wiring
(optional):
— Three 1. 0 mm
2
(#18 AWG) PELV (Class 2: USA)
wires.
• Connect the wallstation to the control link inside the
wallstation’s wallbox or in a junction box (provided by
others).
• Control link wiring must not be run in the same
raceway as line voltage.
• Control link wiring is not to exceed 610 m (2000 ft.).
• The drain/shield wire must be maintained throughout
the control link. Do not connect the shield to earth/
ground or allow contact with the grounded wallbox.
Installation Instructions Occupant Copy2
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