Cerhot EU White

Cerhot Infrared Motion Sensor Light Switch

Model: EU White

1. Introduction

Thank you for choosing the Cerhot Infrared Motion Sensor Light Switch. This device provides a convenient and hygienic way to control your lighting through touchless infrared sensing. Designed for safety and ease of use, it is ideal for various environments where minimizing physical contact is desired. This manual provides detailed instructions for installation, operation, and maintenance to ensure optimal performance and safety.

2. Important Safety Information

  • Electrical Hazard: Installation must be performed by a qualified electrician or in accordance with local electrical codes. Always turn off power at the circuit breaker before installation or servicing.
  • Neutral Wire Required: This product requires both live and neutral wires for proper operation. Ensure your electrical system provides both.
  • Indoor Use Only: This switch is designed for indoor use in dry locations. Do not expose to water or excessive humidity.
  • Operating Voltage: Ensure the supply voltage matches the product's rated voltage (AC100-240V).
  • Maximum Load: Do not exceed the maximum load of 10A. Overloading can cause damage or fire.
  • Children and Pets: Keep the device out of reach of children and pets to prevent accidental operation or damage.

3. Product Overview

The Cerhot Infrared Motion Sensor Light Switch features a sleek design with a tempered glass panel for durability and easy cleaning. Its primary function is to detect hand movements within a 10 cm range to toggle connected lights on or off, promoting a touchless and hygienic environment.

Cerhot Infrared Motion Sensor Light Switch with hand sensing

Figure 3.1: The Cerhot Infrared Motion Sensor Light Switch demonstrating its touchless sensing capability. A hand is shown activating the sensor, indicated by a red light beam.

Tempered glass panel of the Cerhot switch

Figure 3.2: Close-up view of the switch's tempered glass panel, highlighting its scratch-resistant surface. A knife is shown near the surface to illustrate durability.

Flame retardant material of the Cerhot switch

Figure 3.3: The switch is shown against a backdrop of flames, illustrating its flame-retardant material construction for enhanced safety.

4. Specifications

ParameterValue
ModelEU White
Dimensions (L x W x H)86 x 86 x 36 mm (3.39 x 3.39 x 1.42 inches)
Rated VoltageAC100-240V, 50/60Hz
Max Load Current10A
Operating ModeON-OFF (Infrared Induction)
Sensing Distance10 cm (3.94 inches)
MaterialPolycarbonate, Tempered Glass Panel
CertificationsCE, RoHS, FCC
Wiring RequirementLive and Neutral Wires
Product dimensions and electrical parameters

Figure 4.1: Detailed diagram showing the product's dimensions (86x86x36mm) and electrical parameters, including input voltage (AC100-240V) and max load (10A).

5. Installation Guide

Before You Begin: Ensure the power supply to the circuit is turned OFF at the main circuit breaker. Verify that both live and neutral wires are available at the installation location.

Wiring Instructions:

  1. Identify the Live (L) and Neutral (N) wires from your power supply.
  2. Connect the incoming Live wire to the terminal marked L IN on the switch.
  3. Connect the incoming Neutral wire to the terminal marked N IN on the switch.
  4. Connect the Live wire leading to your light fixture (or appliance) to the terminal marked L OUT on the switch.
  5. Connect the Neutral wire leading to your light fixture (or appliance) to the terminal marked N OUT on the switch.

Ensure all connections are secure and properly insulated. The switch is compatible with both square and circular bottom boxes.

Wiring diagram for Cerhot Infrared Motion Sensor Light Switch

Figure 5.1: Detailed wiring diagram showing connections for Live (L) and Neutral (N) wires from the power supply to the switch, and then to the lamp stand. An example setup with a light bulb and power strip is also shown.

6. Operating Instructions

The Cerhot Infrared Motion Sensor Light Switch operates on a simple touchless principle. Once installed and powered, it is ready for use.

Basic Operation:

  • To turn the light ON or OFF, simply wave your hand within 10 centimeters (approximately 4 inches) of the sensor area on the switch panel.
  • The infrared sensor will detect the movement and toggle the connected light's state.
Sensing distance of 10cm for the Cerhot switch

Figure 6.1: Illustration demonstrating the 10 cm sensing distance of the infrared sensor. A hand is shown hovering above the switch within this range.

Recommended Applications:

This touchless switch is particularly beneficial in environments where hygiene and convenience are paramount:

  • Kitchens: Avoid touching the switch with oily or dirty hands.
  • Bathrooms/Toilets: Minimize contact with potentially unclean surfaces.
  • Entryways: Prevent bringing outside contaminants into the home.
  • Bedrooms: Easily turn lights on/off in the dark without needing to precisely locate a physical switch.
  • Hospitals & Schools: Reduce the spread of bacteria through touchless operation.
Cerhot switch in a bathroom setting, promoting hygiene

Figure 6.2: The switch installed in a bathroom setting, emphasizing its role in avoiding cross-infection and contact with bacteria by enabling touchless operation.

7. Maintenance

The Cerhot Infrared Motion Sensor Light Switch requires minimal maintenance. Its tempered glass panel is designed for easy cleaning.

  • Cleaning: To clean the surface, gently wipe with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these may damage the finish or internal components.
  • Inspection: Periodically inspect the switch for any signs of damage or loose connections. If any issues are found, disconnect power immediately and consult a qualified electrician.
  • No User-Serviceable Parts: There are no user-serviceable parts inside the switch. Do not attempt to open or repair the device yourself.

8. Troubleshooting

If you encounter issues with your Cerhot Infrared Motion Sensor Light Switch, please refer to the following common problems and solutions:

ProblemPossible CauseSolution
Light does not turn ON/OFFNo power to the switch
Incorrect wiring
Sensing distance issue
Faulty light bulb/fixture
Check circuit breaker and power supply.
Verify wiring according to Section 5. Ensure Live and Neutral wires are correctly connected.
Ensure hand is within 10 cm of the sensor.
Test the light bulb/fixture with another switch or power source.
Switch is unresponsivePower interruption
Sensor obstruction
Internal fault
Turn off power at the breaker for 30 seconds, then turn it back on.
Ensure nothing is blocking the sensor area.
If the issue persists, contact customer support.
Light flickersUnstable power supply
Incompatible load (e.g., certain LED types)
Loose wiring
Consult an electrician to check power stability.
Try a different type of light bulb/fixture.
Check all wiring connections for tightness (with power off).

If the problem persists after attempting these solutions, please contact Cerhot customer support.

9. Warranty and Support

Cerhot products are designed and manufactured to the highest quality standards. This product has passed CE, RoHS, and other certifications.

Customer Support:

If you have any questions during use, please do not hesitate to contact us at any time. Our services are available online 24/7. You can also communicate with us via email:

Email: support@cerhot.com

We are happy to provide you with service.

© 2025 Cerhot. All rights reserved.

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