230Vac Light / Dark Activated Relay Module 230Vac Light / Dark Activated Relay Module
230Vac light or darkness activated detector module. Adjustable sensitivity. Mains rated relay output activates when light level reaches desired threshold Electronics > Circuit Boards & Components > Printed Circuit Boards > Development Boards I-142N I-142N I-142N 8436544282398 21.41 Quasar Electronics Limited
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230Vac Light / Dark Activated Relay Module

230Vac Light / Dark Activated Relay Module
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Cebek I-142N (CI142N) - 230Vac Light / Dark Activated Relay Module
Pre-Assembled Module
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230Vac light or dark activated detector module with adjustable sensitivity and mains rated relay output.

The relay is activated when the light level falling on the detector board reaches the desired threshold. The relay is deactivated when the light level increases again.

  • Dark Mode: Automatically turn on electric lights or security devices, etc. when light falls below preset level
  • Light Mode: Automatically turn on electrical devices when ambient light level rises above preset level

N.B. This board is best suited to applications where the change in light level is large and the transition quick e.g. to activate a music box when the lid is opened. It is not recommended for dusk/dawn transitions due to potential for relay chatter at the cusp of changeover (see our 12Vdc 3079B board instead).

  • Light - Dark mode selection switch
  • Detector is mounted on a separate board
  • User adjustable sensitivity
  • LED active indicator
  • Reverse polarity protection
  • See Order Code CI104 for a light only activated version of this product
Minimum detection level25 Lux
Maximum detection level130 Lux
Operating Voltage230Vac
Output1 x SPDT Relay
Maximum Output
Load (Resistive)
Up to 240Vac or 28Vdc @ 7 Amps max. (Relay Datasheet)
Maximum Output Power1000 Watts
Relay ConnectionsNO, NC, C (Relay FAQ)
Dimensions (WxDxH)Main board: 76 x 72 x 35 mm
Detector Board: 13 x 25 x 8mm
DIN-RAIL MountC7565
Board ConnectionsScrew terminal blocks
Product FormatPRE-ASSEMBLED Electronic Module
Product Format Info
WARNINGProduct operates at mains voltage and is not suitable for children. An isolating enclosure is required (not included). Installation, testing and commissioning should be performed by a competent person. Mains Electricity Info
Item Number:
Cebek I-142N (CI142N)
Total Price:
£17.84 Exc VAT, £21.41 Inc VAT
Stock Info:
In Stock (Our UK Warehouse)
Your Total:

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