CirKits.com DAS1 Features and Specifications

• Features
  • Designed for automatic on-at-dark lighting systems.
  • Three modes: Off, Always-On and On-At-Dark (Auto).
  • Useful for stationary, portable, auto and marine lighting systems.
  • Operates from 12V solar power systems, DC power supplies and automotive power systems.
  • Controls Incandescent, LED and fluorescent lamps and other DC loads.
  • Designed to work with the CirKits SCC3 solar charge controller kit.
  • Common Negative Ground between 12V power source and external load.
  • Low Voltage Disconnect (LVD) circuit, shuts lights off to protect a discharged battery.
  • Light sensor hysteresis prevents light flicker at dusk and dawn.
  • LVD hysteresis prevents light flicker when battery discharges.
  • Reliable and efficient solid-state circuitry.
  • Built-in fuse for short circuit protection.
  • Reverse supply connection blows the fuse, protecting the DAS1 and load.
  • Radio quiet, will not interfere with sensitive radio receivers.
  • Simple 4 screw connector will accept spade lugs or wires for attaching power source and external load.
  • Miniature 2 screw connector for connection of the light sensor.
  • Light sensor can be mounted on the board edge or remotely.

• Controls and Indicators
  • Three way On/Off/Auto (On-At-Dark) toggle switch.
  • Dual high-intensity white LEDs provide an on-board light source.
  • Dark Turn-On adjustment trimmer pot.
  • Low Voltage Disconnect adjustment trimmer pot.

• Specifications
  • Supply Voltage: 12V (nominal).
  • Absolute Maximum Supply Voltage: 17 VDC.
  • External Lamp Voltage: 12V DC (nominal).
  • External Lamp Current: 0 to 10 Amps DC.
  • On/Auto-Night Current, white LEDs on and external load off: 27mA @12.8VDC.
  • Auto-Day Current: 5mA DC @12.8VDC
  • Off Current: <10 microamps
  • LVD Off/On Voltage Hysteresis: 1V with R11=1M
  • Fuse Rating: 10 Amp standard ATO automotive fuse.
  • Board Dimensions: 3.5" wide by 3.0" deep by 0.95" tall.
  • Fits into a standard 4" X 4" electrical utility box, can be mounted on the cover plate.
  • Board Mounts: 4X 4-40 screws on 1/4" spacers.
  • Assembled Weight: approximately 60 grams (2oz).