Crestron shade power supplies: the 24 V DC supplies that feed the QMT motors
Crestron shade power supplies: every current model, Crestron's specifications and documents, and what the shade costs in Crestron's own budget guide.
What are the Crestron shade power supplies?
Every wired Crestron Digital QMT motor runs on 24 V DC from a Crestron power supply, one home run per motor: the CSA-PWS40 wall pack for a single motor, the plenum-rated CSA-PWS2S-JBOX-ZUMLINK-CN in a 4 x 4 junction box for two, and the CSA-PWS10S-HUB-ENET for up to ten motors with a built-in Cresnet hub and an Ethernet to Cresnet bridge.
The CSA-PWS40 is a 40 W, 24 V DC regulated pack that plugs into an outlet and feeds one roller shade or drapery motor through an 8 ft cable; the CSAI-PWS40 is its international version. The CSA-PWS2S-JBOX-ZUMLINK-CN gives 100 W in total, 50 W per output, for two motors or a motor and Cresnet devices, with Zum Link ports for Crestron's Zum lighting, and is UL 2043 rated for air-handling spaces. The CSA-PWS10S-HUB-ENET is the equipment-closet piece: ten outputs at 60 W each, 250 W continuous, a self-resetting fuse on every output, five Cresnet hub segments, an Ethernet port so the whole bank talks to the processor over the network, master up and down buttons for testing, and a case that fits Crestron's CAEN enclosures. The CSA-PWS-TBLOCK-2 and -3 (and the CSAI versions) are the replacement inline terminal blocks for the motor leads. Crestron's Cresnet run limit is about 130 ft standard and 500 ft on Cresnet HP, which decides where the supplies live.
Crestron shade power supplies: every model Crestron lists
8 models on crestron.com. CSMI and CSAI part numbers are the international versions of the same product.
| Model | Crestron description | Output | Motors served | Mounting | Spec sheet |
|---|---|---|---|---|---|
| CSA-PWS40 | Power Pack for CSM-QMTDC Series Motors, 24 VDC, 40 W | - | - | 94V-0 polycarbonate, white, outlet-mountable | |
| CSAI-PWS40 (international) | Power Pack for CSM-QMTDC Series Motors, 24 VDC, 40 W, International | - | - | 94V-0 polycarbonate, white, outlet-mountable | |
| CSA-PWS2S-JBOX-ZUMLINK-CN | Two-Motor J-Box Mounted Power Supply for Motorized Shading Solutions | 100 W (4.2A) @24VDC total, LPS; 50 W (2.1A) @24VDC per output, LPS; 75 W @24VDC total (continuous load) for additional Cresnet devices | - | Mounts using screws on the back of the enclosure. Meets UL 2043 requirements for installation in an environmental air-handling (plenum) space | |
| CSA-PWS10S-HUB-ENET | 10-Motor Power Supply with Ethernet to Cresnet Bridge and Cresnet Hub | 24 Volts DC, 60 Watt max/output LPS; 250 Watts Total Continuous Load; 525 Watts 2 minutes ON, 10 minutes OFF Limited Duty Cycle | Provides power for up to (10) Crestron® roller shade motors, (10) drapery system motors, or a combination of the two up to a total of (10) motors with each motor homerun to the power supply; 10 Drapery System solutions carry 145 lbs load each | Metal, grey | |
| CSA-PWS-TBLOCK-2 | Terminal Block for CSA-PWS10S-HUB-ENET & CAEN-1X1, US/NA | - | - | - | |
| CSA-PWS-TBLOCK-3 | Terminal Block for CSA-PWS10S-HUB-ENET & CAEN-2X1, US/NA | - | - | - | |
| CSAI-PWS-TBLOCK-2 (international) | Terminal Block for CSA-PWS10S-HUB-ENET & CAEN-1X1, International | - | - | - | |
| CSAI-PWS-TBLOCK-3 (international) | Terminal Block for CSA-PWS10S-HUB-ENET & CAEN-2X1, International | - | - | - |
CSA-PWS40 specifications
Crestron's published figures for the CSA-PWS40, Power Pack for CSM-QMTDC Series Motors, 24 VDC, 40 W. The other models on this page differ in the points the table above shows.
| Power Requirements | |
|---|---|
| Power Requirements | Input |
| Power Requirements | Output |
| Connections | |
| Line | (1) NEMA 1-15P ungrounded AC power plug, line power input |
| Load | (1) 8 ft (2.43 m) attached cable with inline ferrite core and flying leads; Connect only one CSM‑QMTDC series roller shade or drapery track motor |
| Construction | |
| Construction | 94V-0 polycarbonate, white, outlet-mountable |
| Environmental | |
| Temperature | 32° to 104° F (0° to 40° C) |
| Humidity | 15% to 95% RH (noncondensing) |
| Environmental | For indoor use only |
| Dimensions | |
| Height | 2.91 in (74 mm) |
| Width | 1.71 in (43 mm) |
| Depth | 2.21 in. (53 mm); Projects 1.54 in. (39 mm) from the AC outlet |
| Weight | |
| Weight | 6.4 oz (182 g) |
| Compliance | |
| Compliance | cETLus 60950, cETLus UL1310, UL, SELV, EAC, LPS, 2MOPP, CE, Ukraine UKRSepro, VCCI, RoHS Level VI, FCC, CAN ICES-3, IP52, Double Insulation, WEEE |
Power supplies documents from Crestron
Spec sheets, guides and certificates published by Crestron (PDF, opens on crestron.com).
- Spec Sheet for: CSA-PWS40
- Quick Start for: CSA-PWS40 and CSAI-PWS40
- CAD Drawing for: CSA-PWS40
- Specification: Roller Window Shades (DOCX)
- Specification: Roller Window Shades (PDF)
- Spec Sheet for: CSAI-PWS40
- Spec Sheet for: CSAI‑PWS40
- CAD Drawing for: CSAI-PWS40
- Spec Sheet for: CSA-PWS2S-JBOX-ZUMLINK-CN
- Spec Sheet: CSA-PWS2S-JBOX-ZUMLINK-CN
- Product Information: CSA-PWS2S-JBOX-ZUMLINK-CN
- Design Guide: Crestron® Shading Solutions
- Product Manual: Crestron Zum Lighting Control
- CAD Drawing: CSA-PWS2S-JBOX-ZUMLINK-CN
Where the power supplies fit
In a South Florida condo the supplies sit in the AV closet or a media cabinet, one PWS10S for every ten shades and drapery tracks, with a home run of 4-conductor Cresnet to each window pulled before the drywall. That home-run rule, no daisy chains, is the one thing to tell the electrician early; our pre-wiring guide has the cable gauges and run lengths. A single retrofit shade near an outlet takes a PWS40 behind the sofa; a shade in a suspended ceiling takes the plenum-rated PWS2S. The battery shades need none of this.
Crestron shade power supplies: frequently asked
How many Crestron shades can one power supply run?
One on the CSA-PWS40, two on the CSA-PWS2S-JBOX-ZUMLINK-CN and up to ten on the CSA-PWS10S-HUB-ENET, each motor on its own output and its own home run. Crestron rates a QMT motor at 42.5 W, so the supplies are sized per output, not by adding motors on one cable.
Where should the Crestron shade power supply go?
Within Cresnet reach of the windows: about 130 ft of cable on standard Cresnet, 500 ft on Cresnet HP. In most condos that is the AV closet or a cabinet on the same floor; in a large house it can mean a PWS10S per wing.
Does the power supply connect to the Crestron processor?
The CSA-PWS10S-HUB-ENET does, over Ethernet or as a Cresnet slave, and it distributes Cresnet to its ten motors. The PWS40 and PWS2S are power only; the motors on them reach the processor through Cresnet wiring or, for the EX motors, through the infiNET EX gateway.
Do you install Crestron shades without a Crestron integrator?
We measure and specify the shades, Crestron builds them to order, our workroom sews the drapery for the track, and we install everything and commission it with the home's integrator, who owns the processor programming. On a project without an integrator we bring one in or propose Lutron or Somfy, which we program ourselves.
Compare with other Crestron shading products
Crestron power supplies in Fort Lauderdale, Miami, Boca Raton & Palm Beach
Exotic Shades is Crestron certified. Our workroom and showroom are at 4539 Powerline Rd in Fort Lauderdale, our second showroom is South of Fifth in Miami Beach, and the same in-house team measures, specifies, installs and commissions with your integrator from Miami to Palm Beach.
Get a quote for Crestron shades
We measure, choose the motor, hardware and fabric with you and quote the shade, the installation and the commissioning with your integrator on one number. One free hour with our team routinely saves owners thousands in avoidable mistakes.