Digital Timer Switch THC-109 16A Light Dependent Relay & Accessories

  • Automatic Control: Automatically turns lights on at dusk and off at dawn based on ambient light levels.
  • Adjustable Sensitivity: Features an adjustable lux range (< 5-150 LUX) to prevent accidental switching.
  • Weather Resistant: Reliable operation unaffected by ambient temperature or humidity changes.
  • Energy Efficient: Ensures loads operate only during nighttime, significantly reducing power consumption.
  • Easy Installation: Standard DIN rail mounting design for seamless integration into distribution boxes.
SKU THC 109-16A Category

Description

Smart Lighting Control for Energy Efficiency

The THC-109 16A Photocell Light Dependent Relay is a high-performance DIN rail light controller designed to automatically manage lighting systems based on ambient brightness. Ideal for street lighting, garden lights, and automatic night lighting, this photoelectric switch ensures energy efficiency by turning lights on when natural light falls below a set level and turning them off when the sun rises. It provides a practical and convenient solution for controlling loads to work exclusively at night.

Reliable Performance in Any Environment

Engineered for durability, the THC-109 is built to withstand varying environmental conditions. Its operation is strictly controlled by light intensity, meaning ambient temperature and humidity do not affect its performance. This stability makes it an excellent choice for outdoor applications where weather conditions can be unpredictable. Whether for highway illumination or residential landscape lighting, this switch guarantees consistent operation.

Precision and Flexibility

The device features a user-adjustable ambient light sensitivity range from 5 to 150 LUX. This allows users to fine-tune the activation point, preventing nuisance tripping caused by temporary shadows or passing car headlights. With a mechanical life of over 100,000 cycles and a robust 16A contact capacity, the THC-109B offers long-term reliability for both commercial and residential projects.

Features

ItemNo THC-109
Voltage range  AC220V 50/60Hz
Timing error AC 180-250V
Display 4VA(max)
Mechanical life 10⁵ times (Rated load)
Control current 16A,20A,25A
Mounting DIN rail mounting
Contact Capacity THC109 16A Resistive:16A/250V AC(cosφ =1)
THC109 20AResistive:20A/250V AC(cosφ =1)
THC109 25AResistive:25A/250V AC(cosφ =1)
Ambient Light <5-150LUX (adjustable)
QTY 100PCS
G.W 15KG
N.W 13KG
MEAS 515×330×325mm
Temperature -10~40℃
Relative humidity  35~85%RH

 

Item No. THC-109B
Rated Voltage AC 220V 50/60Hz
Voltage Operation Range AC 180-250V
Control Current 16A
Contact Capacity (Resistive) 16A / 250VAC (cosφ=1)
Power Consumption 4VA (max)
Ambient Light Sensitivity < 5-150 LUX (Adjustable)
Mechanical Life 105 times (Rated load)
Mounting Type DIN Rail Mounting
Operating Temperature -10°C ~ 40°C
Relative Humidity 35 ~ 85% RH

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