Low Voltage Disconnects Series - 100A - Compact LVD - Robust LVD in a Small Package

48513-01
       

Littelfuse Compact Low Voltage Disconnects 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.

Small size and lightweight design means easier and more discrete mounting, to use space more efficiently, eliminate hardware, and give better routing of wires. When battery voltage falls below programmed voltage setting for 2 minutes non-critical loads are automatically disconnected. Programmable timer feature automatically disconnects loads after key off, regardless of battery condition. 

Disconnect Voltage: 12.05V min, 12.1V typical, 12.15V max. When voltage drops below 12.1V, system activates the alarm for one minute and then disconnects loads.
Overcurrent Protection: 150A - System will disconnect load and sound alarm after 5 seconds of excessive current.
Key-Off timer: 5 minutes minimum, 15 minutes typical.

Features & Benefits

  • 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)

Ordering Information

Part Number Description Included Accessories
48513 Factory Programmed Unit - See datasheet for specifications  –
48513-01-BX Boxed Factory Programmed Unit with Harness - See datasheet for specifications Harness
(p/n 12804)
48513-02-BX Boxed Factory Programmed Unit with Harness & Rocker Switch - See datasheet for specifications Harness
(p/n 12804)
Rocker Switch
(p/n 58326-06)
48513-03-BX Boxed Factory Programmed Unit with Harness & Toggle Switch - See datasheet for specifications Harness
(p/n 12804)
Toggle Switch
(p/n 55088)
48713 Programmable Unit  –
48713-02-BX Boxed Programmable Unit with Harness & Rocker Switch Harness
(p/n 12804)
Rocker Switch
(p/n 58326-06)

Access specifications, certifications, check availability and order parts below

Catalog #ConnectorDescriptionDetailsDimensionsDisconnect voltage (12V)Disconnect voltage (24V)HumidityInductive transientIngress ProtectionLoad dumpCompare
48513DT06-4S Deutsch typeLVD Unit Only100 A
125 A
4.5W x 4.3L x 3.1H12.05 V min
12.1 V typical
12.15 V max
24.1 V min
24.2 V typical
24.3 V max
0 to 90% RH+/- 600 VIP67+ 150 V
48513-01-BXDT06-4S Deutsch typeLVD with 12804 Harness100 A
125 A
4.5W x 4.3L x 3.1H12.05 V min
12.1 V typical
12.15 V max
24.1 V min
24.2 V typical
24.3 V max
0 to 90% RH+/- 600 VIP67+ 150 V
48513-02-BXDT06-4S Deutsch typeLVD with 12804 Harness and 58326-06 Rocker Switch100 A
125 A
4.5W x 4.3L x 3.1H12.05 V min
12.1 V typical
12.15 V max
24.1 V min
24.2 V typical
24.3 V max
0 to 90% RH+/- 600 VIP67+ 150 V
48513-03-BXDT06-4S Deutsch typeLVD with 12804 Harness and Toggle Switch100 A
125 A
4.5W x 4.3L x 3.1H12.05 V min
12.1 V typical
12.15 V max
24.1 V min
24.2 V typical
24.3 V max
0 to 90% RH+/- 600 VIP67+ 150 V
48713DT06-4S Deutsch typeProgrammable LVD Unit Only100 A
125 A
4.5W x 4.3L x 3.1HProgrammable AttributeProgrammable Attribute0 to 90% RH+/- 600 VIP67+ 150 V
48713-02-BXDT06-4S Deutsch typeProgrammable LVD with 12804 Harness and 58326-06 Rocker Switch100 A
125 A
4.5W x 4.3L x 3.1HProgrammable AttributeProgrammable Attribute0 to 90% RH+/- 600 VIP67+ 150 V