LUTRON LU-PH3-A Lumaris Power Interface
Important Notes:
- For installation by a qualified electrician in accordance with all local and national electrical codes.
- Use copper conductors only.
- For indoor use only.
- For 277 V~ applications, a suitable barrier may be required between the non-Class 2 and Class 2 wiring, per local and national electrical wiring codes. For your convenience, the power interface includes an optional barrier.
- DO NOT install if product has any visible damage.
- If moisture or condensation is evident, allow the product to dry completely before installation.
- Operate between 32 °F (0 °C) and 104 °F (40 °C) ambient.
- 0% to 90% humidity, non-condensing.
- Four 8-32 × 3/8 in (9.5 mm), serrated lid screws provided.
Required Components For each system, ensure that you have:
Mount the power interface
- Remove the top cover to access the multi-sided mounting key holes.
- Mount the power interface per the options shown below.
Notes
- A minimum of 3 in (76 mm) is required between any two power interfaces.
- Mount the power interface in a position where it can be easily located and accessed if service or troubleshooting is necessary.
- Any other mounting configurations will require additional mechanical support. Improper installation may result in hazards to personnel or property.
A barrier (included) in the wiring compartment separates non-Class 2 and Class 2 wires. Barrier can be placed between the control and the output terminals (Option 1) or between the input and the control terminals (Option 2).
Wiring
WARNING: Shock Hazard. May result in serious injury or death. Turn off power at circuit breaker before installing the unit.
- Remove the top cover to access the terminal blocks.
- Open the necessary knockouts to pass wires into the wiring compartment.
- Determine the length and wire gauge from the power interface to the wireless controller using Table 1.
- If wiring wireless controllers in a multi-zone application, wire as shown in Wiring Diagram A. If wiring wireless controllers in a single zone application, wire as shown in Wiring Diagram B.
- Connect the necessary wires as shown in the wiring diagram and plug in the barrel-toterminal adapter to the wireless controller. Terminals accept 12 AWG to 20 AWG (4.0 mm2 to 0.50 mm2) on the power interface. Barrel-to-terminal adapter terminals accept 16 AWG to 20 AWG (1.0 mm2 to 0.50 mm2). Torque to 5 in-lbs (0.5 N•m).
Note: If using 14 AWG (2.5 mm2) or 12 AWG (4.0 mm2) wire for LED+ and LED- wires from the power interface to the barrel-to-terminal adapter, splice a small piece of 16 AWG (1.0 mm2) wire onto a 12 AWG (4.0 mm2) or 14 AWG (2.5 mm2) wire to insert into the barrel-to-terminal adapter. - Optional – Add barrier between non-Class 2 and Class 2 wires.
- Re-apply power.
Note: Table 1 wiring information is based on a Lumaris power interface controlling three Lumaris wireless controllers, each with 16.4 ft (5 m) of LED tape. Contact Lutron if longer wire runs are required.
| Table 1: Maximum Wire Length from the Power Supply to the Wireless Controller: ft (m) | ||||
| 12 AWG
(4.0 mm2) |
14 AWG
(2.5 mm2) |
16 AWG
(1.0 mm2) |
18 AWG
(0.75 mm2) |
20 AWG
(0.50 mm2) |
| 75 (22.9) | 50 (15.2) | 30 (9.1) | 20 (6.1) | 10 (3.0) |
Wiring Diagram A: Multi-zone application
Note: To avoid unintended interaction between LEDs, all wireless controllers that are controlled separately in a multi-zone application must be homerun back to the power interface.
Wiring Diagram B: Single zone application
Note: If wiring wireless controllers in a single zone application, LED+ and LED- low-voltage wires can be T-tapped or can be homerun back to the power interface. Either wiring method is acceptable.
Troubleshooting
| Indicator LED Flash Pattern | Reason | Remedy |
| LED on wireless controller is off | No power to the wireless controller | Confirm that the circuit breaker is on to the power interface and that the line voltage wiring is connected to the proper terminals. |
| Red LED on wireless controller flashes once, then a 2 second pause. | Output short circuited | Disconnect the load from the wireless controller and check for shorts. Power cycle the wireless controller to reset. |
| Red LED on wireless controller flashes three
times, then a 2 second pause. |
Input voltage is too low | Confirm that the wireless controller is being powered by 24 V- +/- 10%. Confirm proper wire gauge and length are used from Table 1. |
| Red LED on wireless controller flashes four
times, then a 2 second pause. |
Input voltage is too high | |
| Green LED on wireless controller is on
continuously. |
Device is not commissioned | Setup the device in a system. |
Customer Assistance:
U.S.A. / Canada: 1.844.LUTRON1
Mexico: +1.888.235.2910
www.lutron.com
Limited Warranty:
For limited warranty information, please visit http://www.lutron.com/TechnicalDocumentLibrary/043492.pdf
The Lutron logo, Lutron, RadioRA 3, HomeWorks, and Lumaris are trademarks or registered trademarks of Lutron Electronics Co., Inc. in the US and/or other countries. All other product names, logos, and brands are property of their respective owners. ©2023 Lutron Electronics Co., Inc.
Documents / Resources
 |
LUTRON LU-PH3-A Lumaris Power Interface [pdf] Installation Guide LU-PH3-A, RRL-TWCL-WH, HWL-TWCL-WH, LU-BP1, LU-PH3-A Lumaris Power Interface, LU-PH3-A, Lumaris Power Interface, Power Interface, Interface |
