1. Introduction
This manual provides detailed instructions for the installation, setup, operation, and maintenance of the Lutron Maestro Occupancy Sensor, model MSCL-OP153MW-WH. This device is designed to automatically control lighting based on occupancy detection, offering both convenience and energy savings. It functions as a single-pole or 3-way switch and includes dimming capabilities.
2. Product Overview
The Lutron Maestro Occupancy Sensor integrates motion sensing with light control. Key components and their functions are outlined below:
- Tap Switch: Allows manual ON/OFF control of the connected lights.
- Rocker: Enables manual adjustment of the light level (dimming).
- Occupancy Sensor: Automatically turns lights ON when motion is detected in the room and OFF when the room is vacant. It can be programmed to turn lights on to a preferred dimmed level.

Figure 2.1: Front view of the Maestro Occupancy Sensor with labels indicating the tap switch, rocker, and sensor. The tap switch controls manual on/off, the rocker adjusts light level, and the sensor detects occupancy to automate lighting.
The sensor is designed for 120 Vac operation and supports a maximum load of 600 watts. It is compatible with various lighting types, including LED.
3. Installation
WARNING: To avoid serious injury or death, turn off power at the circuit breaker or fuse box before wiring. Installation should be performed by a qualified electrician or in accordance with local electrical codes.
3.1 Wiring Instructions
- Ensure power is OFF at the circuit breaker.
- Remove the existing wall switch from the wall box.
- Identify the wiring in the wall box. The Maestro Occupancy Sensor supports both single-pole and 3-way wiring configurations.
- Connect the wires from the wall box to the corresponding wires on the Maestro Occupancy Sensor using wire connectors. Refer to the wiring diagram provided with the product for specific connections (e.g., hot, load, neutral, ground, traveler for 3-way). The green wire is typically for ground.
- Carefully push the wired sensor into the wall box.
- Mount the sensor to the wall box using the provided screws.
- Attach the wallplate (sold separately) over the sensor.
- Restore power at the circuit breaker.

Figure 3.1: Side view of the Maestro Occupancy Sensor showing the wiring terminals and the green ground wire. Proper wiring is essential for safe and correct operation.
4. Setup and Programming
After installation, the sensor may require initial setup and programming to optimize its performance for your specific environment.
4.1 Occupied Light Level Adjustment
The sensor can be programmed to turn lights on to a specific dimmed level when occupancy is detected. This is referred to as the "Occupied Light Level Adjustment." It is recommended to use the "preset" option for this setting. Consult the full product guide for detailed steps on entering programming mode and adjusting this level.
4.2 Time-Out Settings
The sensor has fixed time-out options for how long the lights remain on after the last detected motion. Common settings include 1 minute, 3 minutes, 5 minutes, 15 minutes, and 30 minutes. Refer to the product's advanced programming guide for instructions on how to select the desired time-out duration.
4.3 Light Sensitivity Learning
The sensor can learn the ambient light level to prevent lights from turning on unnecessarily when there is sufficient natural light. This "learning" process may take several days to optimize. Ensure the sensor has an unobstructed view of the room for accurate light detection.
5. Operating Instructions
Once installed and set up, the Maestro Occupancy Sensor operates as follows:
- Automatic Operation: When you enter the room, the sensor detects your presence and automatically turns the lights ON to the programmed level. When the room becomes vacant and the set time-out period expires, the lights will automatically turn OFF.
- Manual ON/OFF: Press the tap switch to manually turn the lights ON or OFF at any time, overriding the automatic sensor control.
- Manual Dimming: Use the rocker switch to manually adjust the brightness of the lights to your desired level.

Figure 5.1: The Maestro Occupancy Sensor automatically illuminates the room when a person enters, providing convenience and energy efficiency.
6. Maintenance
The Lutron Maestro Occupancy Sensor requires minimal maintenance. To ensure optimal performance:
- Cleaning: Periodically wipe the sensor lens and faceplate with a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these can damage the surface or sensor components.
- Obstructions: Ensure that the sensor's view is not obstructed by furniture, decorations, or other objects, as this can impair its ability to detect motion.
7. Troubleshooting
If you experience issues with your Maestro Occupancy Sensor, refer to the following common problems and solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Lights do not turn ON automatically. |
|
| Lights do not turn OFF automatically. |
|
| Lights blink or flicker when ON. |
|
| Sensor is unresponsive. |
|
8. Specifications
Detailed technical specifications for the Lutron Maestro Occupancy Sensor MSCL-OP153MW-WH:
- Model Number: MSCL-OP153MW-WH
- Operation Mode: ON-OFF, Dimming
- Voltage Rating: 120 Vac
- Current Rating: 1.25 Amps
- Wattage: 600 watts
- Circuit Type: Single-pole / 3-way
- Color: White
- Product Dimensions (L x W x H): 2.3 x 4 x 6 inches
- Item Weight: 0.01 ounces
- Control Method: Touch (Push Button)
- Connectivity Protocol: Wi-Fi (compatible with Lutron Caseta Wireless system)
- International Protection Rating: IP65
- Manufacturer: LUTRON ELECTRONICS CO

Figure 8.1: Dimensional drawing of the Maestro Occupancy Sensor, showing its height (4.7 in / 119 mm), width (2.9 in / 75 mm), and depth (1.1 in / 29 mm, 0.3 in / 8 mm for faceplate).
9. Warranty and Support
For warranty information, technical support, or further assistance, please contact Lutron customer service. Details can typically be found on the Lutron official website or within the product packaging. Keep your purchase receipt for warranty claims.
Lutron Customer Support: www.lutron.com/support