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See all results085544 · Specification Submittal · Rev C · Oct 2017 · English · PDF, 5 pages, 1.1 MB
Lutron Sivoia QS 35V J-Box Power Supply Specification Submittal (085544, rev C)
Lutron's specification submittal for the QSPS-J-1-35V QS Junction Box Power Supply, a 35 V DC supply for one shade.
Lutron 085544 Rev C (October 2017), Sivoia QS 35V J-Box Power Supply Specification Submittal. https://assets.lutron.com/a/documents/085544.pdf, via https://newwaykl.com/resources/lutron/roller-shades/sivoia-qs/lutron-sivoia-qs-35v-j-box-power-supply-specification-submittal-085544/
About document 085544
Lutron document 085544, Rev C of October 2017, is the QSPS-J-1-35V specification submittal: ratings, flying leads, removable terminal blocks, dimensions, environment limits, three wiring examples and QS Link run lengths by wire gauge.
What submittal 085544 covers
Lutron document 085544 has these six sections. Each link opens the PDF at that page in a new tab.
- QS Junction Box Power Supply overview and features, opens in a new tab page 1
- Specifications, opens in a new tab page 2
- Regulatory approvals, environment, performance and warranty, opens in a new tab page 2
- Dimensions and input wiring, opens in a new tab page 3
- Output wiring overview and examples, opens in a new tab page 4
- QS wiring rules and run length table, opens in a new tab page 5
Specifications in 085544
Lutron document 085544 prints 38 values in the groups the document uses, each with the document's unit. A row names the catalog codes it applies to. The page link beside each group opens the PDF where the group starts.
- Supply class
- NEC Class 2 / PELV; U.S. Department of Energy Efficiency Level VI for external power suppliesModels: QSPS-J-1-35V
- Low voltage link
- 4-conductor, power and communication pass-through for QS electronic drive units (EDUs) and QS keypadsModels: QSPS-J-1-35V
- Terminal blocks
- Removable, for access to the low voltage wiringModels: QSPS-J-1-35V
- Input
- 120 V~ to 277 V~, 50/60 Hz, 1.0 AModels: QSPS-J-1-35V
- Output
- 35 V DC, 0.143 AModels: QSPS-J-1-35V
- Load
- Any 1 Lutron QS window treatment drive, or as many as 8 QS PDUsModels: QSPS-J-1-35V
Input Wiring
PDF pages 2 and 3 of 085544, opens in a new tab- Leads
- 3 flying leads, 8 in, 18 AWGModels: QSPS-J-1-35V
- Lead colors
- Black hot / live; white neutral; green groundModels: QSPS-J-1-35V
- Supplies per standard 20 A circuit
- Up to 20Models: QSPS-J-1-35V
- Fuses
- None replaceableModels: QSPS-J-1-35V
- Installer
- Qualified electricianModels: QSPS-J-1-35V
Output Terminal Wiring
PDF page 2 of 085544, opens in a new tab- Wire size
- 22 AWG to 12 AWG (0.5 mm² to 4.0 mm²), single wire, solid or strandedModels: QSPS-J-1-35V
- Torque
- 4.4 in-lbs (0.5 N·m)Models: QSPS-J-1-35V
- Strip length
- 0.25 in (6 mm)Models: QSPS-J-1-35V
- 4-position terminal block
- 1, for the 4-conductor shade power and communication cableModels: QSPS-J-1-35V
- 3-position terminal blocks
- 2, one inbound and one outbound 3-conductor communication linkModels: QSPS-J-1-35V
Regulatory Approvals
PDF page 2 of 085544, opens in a new tab- Listings and marks
- U.S. Department of Energy Level VI compliant; NRCan compliant; cULus Listed; FCC compliant; NOM certified; RoHS compliantModels: QSPS-J-1-35V
Environment
PDF page 2 of 085544, opens in a new tab- Ambient operating temperature
- 32 °F to 104 °F (0 °C to 40 °C)Models: QSPS-J-1-35V
- Relative humidity
- 0% to 90% non-condensingModels: QSPS-J-1-35V
- Location
- Indoor use only; not approved for plenum installationModels: QSPS-J-1-35V
- Thermal dissipation
- 4.5 BTU/hrModels: QSPS-J-1-35V
Performance
PDF page 2 of 085544, opens in a new tab- Surge protection
- Plus or minus 6 kV (ANSI/IEEE C62.41-1991)Models: QSPS-J-1-35V
- ESD protection
- Plus or minus 16 kV (IEC 61000-4-2 air discharge)Models: QSPS-J-1-35V
- Short circuit and miswire protection
- Recovers by itself, on the power output terminalsModels: QSPS-J-1-35V
- Overload and over temperature protection
- Recovers by itselfModels: QSPS-J-1-35V
- Warranty
- Lutron Shading Solutions standard warranty (Window Systems warranty document)Models: QSPS-J-1-35V
- Mounting
- On a 4 in x 4 in junction box, where it replaces the junction box coverModels: QSPS-J-1-35V
Dimensions
PDF page 3 of 085544, opens in a new tab- Printed values
- 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); not tied to height, width or depth in the textModels: QSPS-J-1-35V
QS Wiring Rules
PDF page 5 of 085544, opens in a new tab- Wiring class
- NEC Class 2 / PELV; local and national codes govern circuit separation and protectionModels: QSPS-J-1-35V
- Power (V+ and COM)
- 12 AWG to 18 AWG (4.0 mm² to 1.0 mm²)Models: QSPS-J-1-35V
- Communication (MUX and MUX)
- 22 AWG (0.5 mm²) twisted and shielded pairModels: QSPS-J-1-35V
- V+ between power supplies
- Never connectedModels: QSPS-J-1-35V
- Total QS link wiring
- 2000 ft (610 m) maximumModels: QSPS-J-1-35V
QS Wiring Rules, run length from one supply
PDF page 5 of 085544, opens in a new tab- 1 Sivoia QS shade or drapery drive unit, up to 1 power draw unit
- 250 ft (75 m) on 12 AWG (4.0 mm²); 100 ft (30 m) on 16 AWG (1.5 mm²); 50 ft (15 m) on 18 AWG (1.0 mm²)Models: QSPS-J-1-35V
- No shade, up to 8 power draw units
- 2000 ft (610 m) on 12 AWG; 2000 ft (610 m) on 16 AWG; 1500 ft (450 m) on 18 AWGModels: QSPS-J-1-35V
QS Wiring Rules, cable options
PDF page 5 of 085544, opens in a new tab- 12 AWG (4.0 mm²) power and communication in one cable
- QSH-CBL-L-500Models: QSH-CBL-L-500
- 16 AWG (1.5 mm²) power and communication in one cable
- QSH-CBL-M-500Models: QSH-CBL-M-500
- 18 AWG (1.0 mm²) power and communication in one cable
- GRX-CBL-346S-500Models: GRX-CBL-346S-500
Facts Lutron states in 085544
The values Lutron document 085544 states, as published:
- Input
- 120 V~ to 277 V~, 50/60 Hz, 1.0 A
- Three 8 in, 18 AWG flying leads
- Black live, white neutral, green ground
- Output
- 35 V DC, 0.143 A, NEC Class 2 / PELV
- One QS window treatment drive, or up to 8 power draw units
- Supplies per circuit
- Up to 20 power supplies on a standard 20 A circuit
- No replaceable fuses
- Installed by a qualified electrician
- Output terminal wiring
- 22 AWG to 12 AWG (0.5 mm² to 4.0 mm²), solid or stranded
- Screws torqued to 4.4 in-lbs (0.5 N·m)
- Insulation stripped 0.25 in (6 mm)
- One 4-position and two 3-position removable terminal blocks
- Shades and devices served
- Lutron Sivoia, Stanza and Contract shades, drapery drives, keypads and accessories over a 4-conductor low voltage link
- Environment
- 32 °F to 104 °F (0 °C to 40 °C)
- 0% to 90% non-condensing humidity, indoor use only
- Not approved for plenum installation
- Thermal dissipation 4.5 BTU/hr
- Protection
- Surge: plus or minus 6 kV (ANSI/IEEE C62.41-1991)
- ESD: plus or minus 16 kV (IEC 61000-4-2 air discharge)
- Short circuit, miswire, overload, over temperature: self-recovering
- Approvals
- U.S. Department of Energy Level VI, NRCan
- cULus Listed, FCC compliant
- NOM certified, RoHS compliant
- Mounting
- On a 4 in x 4 in junction box, replacing its cover
- A form factor suited to discreet installation in utility spaces
- Dimensions
- Drawing values, none named as height, width or depth:
- 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)
- Wiring examples
- One window treatment drive unit per supply at most
- Keypads alone on a supply
- Two supplies, each with a drive, joined by the 3-conductor communication link
- Run
- one drive, one PDU: - 250 ft (75 m) on 12 AWG
- 100 ft (30 m) on 16 AWG
- 50 ft (15 m) on 18 AWG
- Run
- 8 PDUs, no shade: - 2000 ft (610 m) on 12 AWG and 16 AWG
- 1500 ft (450 m) on 18 AWG
- QS Link limits
- Power on 12 AWG to 18 AWG (4.0 mm² to 1.0 mm²)
- Communication on 22 AWG (0.5 mm²) twisted shielded pair
- Total link wiring not over 2000 ft (610 m)
- V+ never connected between supplies
Questions about document 085544
The answers come from Lutron document 085544 and New Way's record of it.
What is Lutron document 085544?
Lutron's five-page submittal dated 31 October 2017, under part number 085544c. The supply hard-wires to line voltage and replaces the cover of its junction box.
Which revision of 085544 is current?
Rev C, dated October 2017, is the revision Lutron publishes. New Way checked it against assets.lutron.com on 15 October 2026.
Which roller shades does 085544 cover?
Lutron Sivoia QS roller shades. Lutron document 085544 refers readers to document 369405.
How many shades can one QSPS-J-1-35V power?
Lutron document 085544 states the supply powers any one QS window treatment drive at 35 V DC and 0.143 A. With no drive connected it carries as many as 8 QS power draw units.
For two shades together, Lutron document 085544 shows two supplies, each with its drive, joined by the 3-conductor communication link.
What circuit does the supply need?
Lutron document 085544 gives an input of 120 V~ to 277 V~, 50/60 Hz, 1.0 A on 18 AWG leads. Up to 20 supplies may share a standard 20 A circuit, connected by a qualified electrician.
How far can the shade be from the supply?
Lutron document 085544 allows 250 ft (75 m) on 12 AWG between the supply and one drive plus one power draw unit.
- 16 AWG: 100 ft (30 m)
- 18 AWG: 50 ft (15 m)
- Total QS link wiring under 2000 ft (610 m)
What wire size and torque do the output terminals take?
Lutron document 085544 gives 22 AWG to 12 AWG (0.5 mm² to 4.0 mm²) single wire, solid or stranded.
- Screw torque: 4.4 in-lbs (0.5 N·m)
- Insulation stripped: 0.25 in (6 mm)
- Blocks: one 4-position (shade), two 3-position (link), all removable
Can the supply be installed in a plenum?
Lutron document 085544 states the QSPS-J-1-35V is for indoor use only and is not approved for plenum installation. Lutron document 085544 limits the ambient to 32 °F to 104 °F (0 °C to 40 °C) and the humidity to 90% non-condensing.
Other Sivoia QS specification submittals
Specification submittals for the same Sivoia QS system:
| Document | Drive class | Revision | Date |
|---|---|---|---|
| 08533510-Output Smart Panel Specification Submittal | Commercial Contract Manual, Roller 20 to 300 | D | Apr 2020 |
| 08559230-Output Configurable Power Panel Enclosure (Power Modules sold separately), 35V Output Specification Submittal | Roller 20 to 300 | B | Nov 2018 |
| 085593Configurable Power Panel, 10 Output Specification Submittal | Roller 20 to 300 | B | Dec 2018 |
| 085329Link Plug-In Power Supply, 35V Output Specification Submittal | Roller 20 to 300 | C | Nov 2024 |
Documents used with 085544
Lutron document 085329 is the plug-in supply submittal, 085274 the QSPS-J-1-50 submittal, 085335, 085593 and 085592 the panel submittals. Lutron document 085544 refers to 369405, the QS Link Power Draw Unit submittal, for power draw units.
| Document | Type | Revision | Date |
|---|---|---|---|
| 0454114-Group RF Remote Control Installation Guide | Installation Guide | D | Jan 2015 |
| 045520Basic Wiring and Setup Installation Guide | Installation Guide | B | Nov 2016 |
| CAD Drawing: 30-Output Configurable Power Panel Enclosure (Power Modules Sold Separately), 35V Output, Elevation View (Front) | CAD Drawing | ||
| CAD Drawing: 30-Output Configurable Power Panel Enclosure (Power Modules Sold Separately), 35V Output, Plan View (Bottom) | CAD Drawing | ||
| 045000710 Output Power Panel Power Supply (12 V) Installation Guide | Installation Guide | A | Jul 2025 |
| 04562030-Output Configurable Power Panel Enclosure, 35V Output Installation Guide | Installation Guide | B | Jan 2018 |
| Roller Shades Wiring Diagram: Multiple Shades per Single QS Smart Panel | Wiring Diagram | ||
| Roller Shades Wiring Diagram: One Shade per Single QS Smart Panel | Wiring Diagram | ||
| Revit Family: QS J-Box 35V Power Supply | Revit Family | ||
| Revit Family: QS Smart Power Panel, 30 Output | Revit Family |
Revisions of 085544
This page always shows the revision Lutron publishes today. Lutron replaces the file in place and does not keep earlier revisions online.
| Revision | Date | Status |
|---|---|---|
| C | Oct 2017 | Current. The file on assets.lutron.com. Checked 15 Oct 2026. |
Not covered in 085544, and what to read next
Lutron document 085544 gives no junction box installation steps, no shade programming and no power draw unit value per device.
- Power draw units: 369405, the QS Link Power Draw Unit specification submittal
- Plug-in: 085329, the QS Link plug-in power supply specification submittal
Publisher and citation for document 085544
Lutron Electronics Co., Inc. publishes document 085544, Rev C, and serves it from assets.lutron.com. New Way hosts no copy and last checked the file there on 15 October 2026.
Lutron and Sivoia QS are trademarks of Lutron Electronics Co., Inc.
Reviewed by Edmond Hong, Technical Specialist, New Way.
Specifying Sivoia QS?
New Way supplies and installs Lutron Sivoia QS shading in Malaysia and Singapore. A New Way specifier can check your shade schedule and drawings before you submit.
The form opens with document 085544 filled in.
