48513 LITTELFUSE | Alldatasheet
Document overview
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Technical content
© 2019 Littelfuse Commercial Vehicle Products Rev: 020419 littelfuse.com 1 of 2 Product Datasheet PART NUMBER DESCRIPTION
48513 Unit Only
48513-01-BX Unit with Harness (p/n 12804) 48513-02-BX Unit with Harness (p/n 12804) & Rocker Switch (p/n 58326-06) 48513-03-BX Unit with Harness (p/n 12804) & Toggle Switch (p/n 55088)
48713 Programmable Unit Only
COMPACT LOW VOLTAGE DISCONNECT 100A • 12 or 24V DC • IP67 • OBSOLETE 2018 Specifications Overview Voltage: 12/24V DC (Auto Ranging) Operating Voltage: 12V DC: 9V Min, 12V Typical, 16V Max 24V DC: 18V Min, 24V Typical, 32V Max Disconnect & Connect Voltage: See table on page 2 Overcurrent Protection: 135A Ingress Protection: IP67 Operating Temperature: -40° to +85°C (-40° to +185°F) Web Resources Download technical resources at: littelfuse.com/48513 Datasheet Replaces Hotfeed Number D-619
Description
Unit disconnects non-critical loads when battery voltage falls below threshold, reconnects when battery is recharged. Unit is auto-ranging: identifies whether system is 12V or 24V , and automatically establishes thresholds. One part number; two voltages. Eliminates dead battery service calls and lost time by extending battery life and preventing irreversible damage due to excessive discharge. No action is required by vehicle operator to protect the batteries – unit automatically disconnects and reconnects, giving operator a warning one minute before disconnect. 200mA alarm signal can drive audible or visual systems or any large device via a relay. Optional manual override feature. Electronics are sealed to IP67 , see Installation 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). Protects vulnerable onboard electronics such as GPS, phone, computer. Solid-state switching creates less electrical noise and interference, and eliminates spikes. Features and Benefits
- Electronically senses battery level and conserves starting power
- Prolongs battery life by preventing battery damage.
- Unit works with 12V or 24V DC systems
Ordering Information
12804 Plug & Harness
55088 Toggle Switch
© 2019 Littelfuse Commercial Vehicle Products Rev: 020419 littelfuse.com 2 of 2 Product Datasheet * These characteristics are programmable in 48713 series LVDs. Environmental Specifications
Electrical Characteristics
CHARACTERISTIC PARAMETER NOTES Operating Temperature Range -40° to +85°C -40° to +185°F 100A at 85°C, 125A at 60°C Ingress Protection Rating IP67 Per IEC 529 Humidity 0 to 90%RH Vibration 10-500Hz Per SAE J1455 Shock Per SAE J1455 Thermal Shock Per SAE J1455 Inductive Transient +/- 600V Per SAE J1455 Load Dump +150V Per SAE J1455 CHARACTERISTIC MIN TYPICAL MAX NOTES Operating voltage (12V) 9V 12V 16V If used with 12V DC systems *Disconnect voltage (+12V) *Connect voltage (+12V) 12.05V 12.95V 12.1V 13.0V 12.15V 13.05V When voltage drops below 12.1V, system activities the alarm for one minute, then disconnects loads. Operating Voltage (24V) 18V 24V 32V If used with 24V DC systems Quiescent Current 1mA 2mA Circuit operating current Maximum Rated Current *Overcurrent Protection 135A System will disconnect load and sound alarm after 3 seconds of excessive current. *Key-Off Timer 15 Mins Optional feature. After key-off, unit will wait a set time before activating alarm. One minute later, loads are shut off. Dimensions COMPACT LOW VOLTAGE DISCONNECT 100A • 12 or 24V DC • IP67 • OBSOLETE 2018 Visit Littelfuse.com for the most up-to-date product information. Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not 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 product 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 product documentation. CHARACTERISTIC PARAMETER NOTES Battery terminals (1/4”–20) 50 in -lbs (5.78Nm) 4 [101.6] 3.11 [79.0] 4.27 [108.6] 4.50 [114.3] 2 1 8 [53.3] Accepts DT06-4S Deutsch Connector Ø0.28 [Ø7.1]