Compact Low Voltage Disconnects Series - Programmable Compact LVD with Harness & Rocker Switch

Series: Compact Low Voltage Disconnects
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

SERIES OBSOLETE AS OF 05-24-2018  

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 - OBSOLETE AS OF 05-24-2018   –
48513-01-BX Boxed Factory Programmed Unit with Harness - See datasheet for specifications - OBSOLETE AS OF 05-24-2018  Harness
(p/n 12804)
48513-02-BX Boxed Factory Programmed Unit with Harness & Rocker Switch - See datasheet for specifications - OBSOLETE AS OF 05-24-2018  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 - OBSOLETE AS OF 05-24-2018  Harness
(p/n 12804)
Toggle Switch
(p/n 55088)
48713 Programmable Unit - OBSOLETE AS OF 05-24-2018   –
48713-02-BX Boxed Programmable Unit with Harness & Rocker Switch - OBSOLETE AS OF 05-24-2018  Harness
(p/n 12804)
Rocker Switch
(p/n 58326-06)

Product Literature

Access specifications, certifications, check availability and order parts below

Catalog #Current Rating (Continuous) in AmpsVoltage Rating MaxDetailsIngress ProtectionOutput TerminalsRecommended TorqueAgency Approval - HumidityAgency Approval - ShockAgency Approval - VibrationSamplesCompare
48513
Obsolete: 2018 -05-24		10024IP67Two 1/4-20 Studs5.78 Nm0 to 90% RHSAE J145510-500 HzOrder
48513-01-BX
Obsolete: 2018 -05-24		100 A
125 A		0 to 90% RH
48513-02-BX
Obsolete: 2018 -05-24		100 A
125 A		0 to 90% RH
48513-03-BX
Obsolete: 2018 -05-24		100 A
125 A		0 to 90% RH
48513-01-BX
Obsolete: 2018 -05-24		10024IP67Two 1/4-20 Studs5.78 Nm0 to 90% RHSAE J145510-500 HzOrder
48513-02-BX
Obsolete: 2018 -01-11		10024IP67Two 1/4-20 Studs5.78 Nm0 to 90% RHSAE J145510-500 Hz
48513-03-BX
Obsolete: 2018 -01-11		10024IP67Two 1/4-20 Studs5.78 Nm0 to 90% RHSAE J145510-500 Hz
48713-02-BX
Obsolete: 2018 -05-24		10024IP67Two 1/4-20 Studs5.78 Nm0 to 90% RHSAE J145510-500 HzOrder
48713
Obsolete: 2018 -05-24		10024IP67Two 1/4-20 Studs5.78 Nm0 to 90% RHSAE J145510-500 Hz
48713-02-BX
Obsolete: 2018 -05-24		100 A
125 A		0 to 90% RH

To request product environmental information, please complete the Product Environmental Information Request Form.