Royce Thompson Electric 250mW Lighting Controller Switch, Filtered Silicon Photodiode, 220 → 270 V ac

COO (Country of Origin): GB

Integral Luminaire Controller

Supplied with 2 nitrile gaskets and 20mm lock ring

Daylight Lighting Controllers

These controllers automatically turn lights 'ON' and 'OFF' in response to changes in ambient light levels, primarily the transition from day to night and vice-versa. The more advanced types (see note below) have inbuilt logic to minimise false triggering, whereas the remainder have inbuilt time delays or higher 'OFF' thresholds, to prevent on/off cycling. As a general rule, these controllers should be sited such that they are not illuminated, by the light they are controlling. Nominal supply voltage is 230Vac.,Note regarding energy-saving negative-hysteresis controllers,Where figures for the 'OFF' threshold are lower than for the 'ON' threshold, the sensor is designed such that four thresholds are actually monitored. These are: dusk, the middle of the night, dawn and the middle of the day. Monitoring at times other than dusk and dawn enables the sensor to determine what it should be looking for next, minimising false triggering and improving overall controller operation.

Attribute Value
Controller Type Switch
Sensor Type Filtered Silicon Photodiode
Voltage Rating 220 → 270 V ac
Power Consumption 250mW
Length 57 mm
Width 31 mm
Height 25mm
57 現貨庫存,可於3工作日發貨。
單價 個
HK$ 244.59
Per unit
1 - 11
12 +