Cole Hersee Compact Low Voltage Disconnect Switch with DT06-4S Deutsch Type Connector - 48513-03-BX

Cole Hersee

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The Cole Hersee Compact Low Voltage Disconnect Switch 48513-03-BX electronically sense battery voltage and conserves starting power. The unit automatically disconnects and reconnects loads based on battery conditions which prolongs battery life by preventing damage due to excessive discharge.


  • Auto-ranging identifies whether system is 12V or 24V, and automatically establishes thresholds (one part number; two voltages)
  • Metric tin-plated copper terminals
  • Eliminates dead battery service calls and lost time. Extends battery life by preventing irreversible damage due to excessive discharge
  • Unit gives warning one minute before disconnect through a 250 mA alarm signal that can drive audible or visual systems
  • Optional manual override feature
  • Electronics are sealed to IP67, see Wiring Instructions IF-162 for mounting and wiring details
  • Solid state reliability and resistance to vibration – replaces vulnerable conventional solenoids. Unit exceeds one million cycles and is protected from overcurrent, overvoltage, and under-voltage
  • Minimal draw on battery (only 1mA standby)


  • Cole Hersee Part No.: 48513-03-BX
  • Connector: DT06-4S Deutsch Type
  • Description: LVD with 12804 Harness and Toggle Switch
  • Details: 100 A, 125 A
  • Dimensions: 4.5W x 4.3L x 3.1H
  • Disconnect Voltage (12V): 12.05 V min, 12.1 V typical, 12.15 V max
  • Disconnect Voltage (24V): 24.1 V min, 24.2 V typical, 24.3 V max
  • Humidity: 0 to 90% RH
  • Inductive Transient: +/- 600 V
  • Inductive Protection: IP67
  • Load Dump: + 150 V
  • Operating Temperature Range: -40 to +85C, -40 to +185F
  • Overcurrent Protection: 135 A
  • Quiescent Current: 2 mA max
  • Rating: 125A at 60C, 100A at 85C
  • Sealing: IP67
  • Shock: SAE J1455
  • Terminals: 1/14-20, 50 in-lbs (5.78 Nm)
  • Vibration: 10-500 Hz
  • Voltage Rating: 12 to 24 Vdc
  • SI Dimensions: 114.3 x 108.6 x 79.0mm

Product Condition: NEW

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