CommercialVehicle Product Datasheet
FlexMod™ ELECTRONIC VOLTAGE SENSING RELAY & TIMER
Specifications Overview
Voltage Rating:
12-24V DC (Auto Ranging)
Humidity:
0 to 90%RH
Vibration:
10-500Hz
Operating Temp:
Ingress Protection:
Dimensions:
-40° to +85°C
IP67
4.0” x 2.70” x 1.31”
Web Resources
Download technical resources at:
littelfuse.com/FlexMod
Description
Monitors both battery voltage and ignition status, shutting
down non-critical loads when the cutoff voltage is reached, or
at the set time after the ignition is turned off. It is a timer and
voltage sensor in one easy-to-connect unit. If either the cutoff
voltage or time limit is reached, the FlexMod will shut down
the auxiliary loads, providing double protection.
Ordering Information
PART NUMBERS
HARNESS
INCLUDED
DESCRIPTION
BULK
48541
–
BOXED
48541-BX
48541-01-BX
–
Features and Benefits
• Preserves starting power; eliminates downtime and jump
starts due to dead batteries. Simultaneous time and voltage
monitoring protects starting.
Unit Only
No
Yes
No
Unit w/ Harness
48741
Dealer-programmable unit
• Monitors voltage and time simultaneously, providing double
the protection to batteries. Battery will not be drained if
battery voltage gets low before timer has run out.
48741-01-BX Dealer-programmable unit w/ Harness
Yes
• Auto-ranging to automatically sense the voltage of the
system (12 or 24V) and selects the presets appropriate to
that voltage.
Accessories
PART NUMBERS
DESCRIPTION
• Waterproof, dustproof and vibration-proof. Sealed to IP67
so it can mount on a vehicle even in places where road-
splash is a problem.
12805
FlexMod Harness
• Ultra low 1mA standby current means minimal battery
drain – especially valuable when vehicle is in storage or not
in use.
FlexMod™ Dimensions
• Factory programmable unit is highly versatile: with a broad
range of presets available to match any special application.
• Rated for more than 1,000,000 on-off cycles – unit
operates for the lifetime of the vehicle. Solid state
technology gives long life and low maintenance.
• Compact design (4 x 3 x 1”) – Uses less space; mounts
outside or inside. Saves money by eliminating other
hardware, and provides better wire routing
Datasheet Replaces Hotfeed Number D-633
1 of 4
littelfuse.com
© 2017 Littelfuse Commercial Vehicle Products
Rev: 053117