Non-Critical Load Disconnects ATD

ATD Automatic Timer Disconnect


Can be configured to be used as one of the following battery saving products

Timer Disconnect
  • 12V signal triggers relay to connect battery power to devices
  • When signal is removed the timer is activated and will disconnect devices after a preset time
  • Timer ranges from 15 minutes to 4 hours
Low Voltage Disconnect
  • 12V signal triggers relay to connect battery power to devices.
  • After 12V signal is removed, device senses low battery voltage and automatically disconnects devices.
  • Low voltage setting can be used in conjunction with Timer Disconnect. Low voltage will disconnect devices prior to preset time to preserve battery power
Automatic Charging Relay
  • Automatically combines two batteries when charging, and isolates them when discharging
  • Single side sensing design only monitors the voltage of the start battery
  • Ideal for auxiliary batteries that are AGM or significantly larger than the start battery
  • 12V signal will connect or disconnect relay without any time delay
MSRP: $147.99
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Nominal Voltage12V DC
Amperage Operating Current175mA (closed)
4mA (open)
Terminal Stud Torque140 in-lb (15.82 Nm)
Continuous Rating 120A
Intermittent Rating 210A (5 Min)
Cable Size to Meet Ratings1 AWG (50mm²)
Charge Sense Connect13.0V (3 sec)
Charge Sense Disconnect12.75V (10 sec)
Disconnect Time5 sec, 15 min, 30 min, 1 hr, 1.5 hr, 2hr, or 4hr
Input Voltage Range9.5-16V
Low Voltage Disconnect11.0V (10 sec)
11.5V (10 sec)
12.0V (10 sec)
Maximum Cable Size1/0 AWG (50mm²)
Stud MaterialTinned Copper
Terminal Ring Diameter Clearance1.12in (28.45 mm)
Terminal Stud Size3/8"-16 (M10)
Overvoltage Lockout16.0V (5 sec)
Weight1.25lb (0.57 kg)
Optional Accessories
8033 LED - 12/24V DC Amber
8171 LED - 12/24V DC Red
8172 LED - 12/24V DC Green
Meets the following Regulatory Specifications
CE Marked
Ignition Protected
ISO 8846
SAE J1171
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