SKU: SENS-1918
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AS-10 12V 10A Optical Sensor Switch

₹161.00 (Inclusive of all taxes)
Out of Stock

The AS-10 is a 12V DC photoelectric switch module designed for automatic lighting control, compatible with a wide range of resistive, inductive, and capacitive loads up to 10A. It integrates a CdS photoresistor and control circuitry for day/night operation.

Features

  • 12V DC input voltage with a high 10A maximum load current rating.
  • Integrated CdS photoresistor for automatic environmental light detection (on at night, off during day).
  • Three-wire system compatible with resistive, inductive, and capacitive loads including LEDs, fluorescent, and incandescent lamps.
  • Compact dimensions of 10cm x 4.2cm for easy integration into lighting fixtures and control panels.
  • Includes built-in delay function to accommodate changing ambient light conditions.

Out of stock

Description

The AS-10 Optical Sensor Switch utilizes a cadmium sulfide (CdS) photoresistor sealed within its housing to detect ambient light levels. This photoconductive cell, paired with an integrated control circuit, forms a robust photoelectric switch capable of automatically controlling lighting based on environmental conditions. The module operates on a 12V DC supply and is engineered to handle substantial loads up to 10A, making it suitable for direct switching of high-power lighting fixtures.

Its three-wire design provides broad compatibility, allowing it to interface seamlessly with various lamp types, including energy-saving fluorescent lamps, LED arrays, and traditional incandescent bulbs up to 1000W. The internal circuitry incorporates a configurable delay function to prevent rapid cycling due to transient light changes, such as passing car headlights, ensuring stable and reliable automatic operation for outdoor security lighting, street lamps, and indoor automated lighting systems.

Key Features

  • High-Current Photoelectric Relay: Built-in relay capable of switching loads up to 10A at 12V DC for direct control of lighting circuits.
  • CdS Photoresistor Sensing: Utilizes a reliable cadmium sulfide photoconductive cell for accurate ambient light level detection.
  • Broad Load Compatibility: Designed to safely drive resistive (incandescent), inductive (fluorescent ballasts), and capacitive (LED drivers) loads.
  • Automatic Day/Night Operation: Internal comparator circuit automatically activates the output relay at dusk and de-energizes it at dawn.
  • Adjustable Sensitivity & Delay: Often includes a potentiometer for adjusting the light detection threshold and a built-in time delay to prevent nuisance triggering.
  • Durable Terminal Block Connectors: Features screw terminals for secure and reliable connection of power, load, and ground wires.
  • Compact Enclosure: Housed in a small, rugged plastic case (10cm x 4.2cm) suitable for outdoor or electrical box mounting.

Applications

  • Automatic Street & Security Lighting: For controlling dusk-to-dawn outdoor LED or HID lamps in parking lots, pathways, and building perimeters.
  • Commercial Sign & Display Lighting: Automating the on/off cycle for illuminated signs, shop windows, and advertising displays to save energy.
  • Agricultural & Poultry Farm Lighting: Regulating light cycles in greenhouses, barns, and coops to simulate natural day/night patterns.
  • Home & Building Automation: Integrating into DIY or professional systems for automatic control of porch lights, garden lighting, and indoor ambient lighting.
  • Exhaust Fan & Ventilation Control: Automating attic or bathroom exhaust fans based on ambient light levels for moisture and heat management.

Technical Specifications

Model NumberAS-10
Product TypePhotoelectric Switch Module
Operating Voltage12 V DC
Maximum Load Current10 A
Operating Frequency50-60 Hz
Sensing ElementCadmium Sulfide (CdS) Photoresistor
Control OutputSPST Relay
Load CompatibilityResistive, Inductive, Capacitive
Dimensions (L x W)10 cm x 4.2 cm
Weight48 g

Frequently Asked Questions

What is the maximum load I can connect to the AS-10 switch?

The AS-10 switch is rated for a maximum load current of 10 Amps at 12V DC. This allows it to directly control a wide range of lighting, including incandescent lamps up to 1000W, LED arrays, fluorescent fixtures with ballasts, and small motors like exhaust fans. Ensure the total connected load does not exceed this 10A, 120W (12V*10A) limit to prevent relay failure.

How do I wire the three terminals on the AS-10 optical switch?

The module typically has three screw terminals: Input (12V DC+), Output (Load), and Common (Ground/12V DC-). Connect your 12V DC power supply positive to 'Input', the negative to 'Common'. Connect one wire of your lamp/load to the 'Output' terminal and the other load wire to the positive side of your power source (or to 'Input' if using a switched positive configuration). Always refer to any provided diagram and ensure correct polarity.

Can I adjust the light level at which the AS-10 turns on?

Yes, most versions of the AS-10 include a small potentiometer (adjustment screw) on the circuit board to set the light detection threshold. Turning it clockwise usually increases sensitivity (turns on in dimmer light), while counter-clockwise decreases it (requires darker conditions to activate). Adjust this with the sensor exposed to the desired trigger light level.

Is this switch suitable for outdoor use?

While the AS-10 is robust, its standard plastic housing may not have a specific IP (Ingress Protection) rating. For direct outdoor exposure to rain and dust, it should be installed inside a protective outdoor-rated electrical junction box or enclosure. The CdS photoresistor's sensing window must remain unobstructed and clean for reliable operation.

Does it work with 120V/240V AC mains lighting directly?

No. The AS-10 is a low-voltage control module operating at 12V DC. Its internal relay contacts are rated for the 10A at 12V DC. To control 120V or 240V AC mains lighting, you must use the AS-10 to switch the coil of a separate, appropriately rated AC mains contactor or relay. Never connect high-voltage AC directly to this module's terminals.

Package Includes

  • 1 x AS-10 12V 10A Optical Sensor Switch

Additional Information

Weight 0.048 kg
Dimensions 10 × 4.2 cm