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Sivoia QS QSPS-J-1-35V Junction Box Power Supply
085544c 1 10.31.17
QS Junction Box Power Supply
The QS Junction Box power supply (QSPS-J-1-35V) is a 35 V-
power supply that is used with Lutron QS lighting and shading
devices. It is designed to be hard-wired into a standard 120 - 277
V~ circuit, and mount on a 4 in x 4 in junction box, in place of
the junction box cover as shown.
Features
NEC® Class 2 / PELV power supply capable of powering
Lutron Sivoia, Stanza, and Contract shades, drapery drives,
keypads & accessories
Compliant with U.S. Department of Energy Efficiency Level VI
regulations for External Power Supplies
Simple wiring scheme uses 4-conductor, low voltage link to
provide power and communication pass-through for both QS
electronic drive units (EDUs) and QS keypads
Flexible wiring topology for easy installation and integration
Removable terminal blocks for easy access to low voltage wiring
Form factor allows the power supply to be installed discretely in
utility spaces
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Sivoia QS QSPS-J-1-35V Junction Box Power Supply
085544c 2 10.31.17
Specifications
Power
Input: 120 - 277 V~ 50/60 Hz 1.0 A
Output: 35 V- 0.143 A
Capable of powering any one Lutron QS window treatment drive OR up to 8 QS PDU’s (see QS Link Wiring Rules)
Input Wiring
Three (3) 8 in, 18 AWG flying leads
Up to 20 power supplies may be wired into a standard 20 A circuit
No replaceable fuses
Must be installed by a qualified electrician
Output Terminal Wiring
22 AWG – 12 AWG (0,5 mm
2
– 4,0 mm
2
) single wire, solid or stranded
Torque: 4.4 in-lbs (0,5 N•m)
Strip length: 0.25 in (6 mm)
4-position terminal block accepts 4-conductor shade power/communication cable
3-position terminal block accepts 3-conductor inbound communication link
3-position terminal block accepts 3-conductor outbound communication link
Regulatory Approvals
U.S. Department of Energy Level VI Compliant
NRCan Compliant
cULus Listed
FCC Compliant
NOM Certified
RoHS Compliant
Environment
Ambient temperature operating range: 32 °F to 104 °F (0 °C to 40 °C)
Relative humidity: 0% to 90% non-condensing
For indoor use only; not approved for plenum installation
Thermal dissipation: 4.5 BTU / hr
Performance
+/- 6 kV surge protection (ANSI / IEEE C62.41 - 1991)
+/- 16 kV ESD protection (IEC 61000 - 4 - 2 AIR DISCHARGE)
Self-recoverable short circuit / miswire protection on power output terminals
Self-recoverable overload/over temperature protection
Warranty
Covered by Lutron Shading Solutions standard warranty; see:
lutron.com/TechnicalDocumentLibrary/Window Systems Warranty.pdf
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Sivoia QS QSPS-J-1-35V Junction Box Power Supply
085544c 3 10.31.17
4.55 in
(115.5 mm)
4.25 in
(108 mm)
4.05 in (103 mm)
3.03 in (77 mm)
1.42 in
(36 mm)
0.079 in
(2 mm)
Input Wiring
Dimensions
Black Wire: HOT / LIVE
White Wire: NEUTRAL
Green Wire: GROUND
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Sivoia QS QSPS-J-1-35V Junction Box Power Supply
085544c 4 10.31.17
Output Wiring Overview:
...up to 8 PDU's
total on link
(refer to QS Link
Wiring Rules on
the following page)
Power and communication
link (4 conductor)
Provides power and
communication to QS
shades and/or keypads
Example: Powering one window treatment drive unit
(maximum 1 window treatment drive unit per power supply)
Example: Powering keypads
Example: 2 power supplies / 2 window treatment drive units, with communication link
Communication link
(3 conductor)
Used as a communications
pass-through connection for
QS Link devices
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Sivoia QS QSPS-J-1-35V Junction Box Power Supply
085544c 5 10.31.17
QS Wiring Rules
The following rules must be observed for proper operation.
QS wiring is NEC® Class 2 / PELV. Follow all applicable local and national codes for proper circuit separation and protection.
Power (V+ and COM): 12 - 18 AWG (4,0-1,0 mm²)
Communication (MUX and MUX): 22 AWG (0,5 mm²) twisted/shielded pair
V
+
must NEVER be connected between power supplies
Total length of QS link wiring must not exceed 2000 ft (610 m)
Options available from Lutron with power and communication conductors in one cable:
Gauge Lutron Model Number
12 AWG (4,0 mm²) QSH-CBL-L-500
16 AWG (1,5 mm²) QSH-CBL-M-500
18 AWG (1.0 mm²) GRX-CBL-346S-500
*For more information, refer to the QS Link Power Draw Unit Specification Submittal (P/N 369405)
It is the responsibility of the installer to ensure plenum installations are compliant with all applicable local and national codes.
Maximum devices powered
from one QSPS-J-1-35V
Maximum total length of wiring between power supply
and device(s) based on wire gauge
Shades
+
Controls
12 AWG
(4,0 mm²)
16 AWG
(1,5 mm²)
18 AWG
(1,0 mm²)
1 Sivoia QS
shade/drapery
drive unit
+
Up to
1 Power
Draw Unit*
250 ft
(75 m)
100 ft
(30 m)
50 ft
(15 m)
None
+
Up to 8
Power Draw
Units*
2000 ft
(610 m)
2000 ft
(610 m)
1500 ft
(450 m)
O
Lutron, Sivoia, and Stanza are trademarks of Lutron Electronics Co., Inc., registered in the U.S. and other countries
NEC is a registered trademark of The National Fire Protection Association
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