Redarc Dual Sensing Smart Start Battery Isolator 24V 200A • SBI224D

Product Details


The REDARC Smart Start® SBI224D is primarily used in commercial vehicles to protect the start battery from excessive discharge and provides 24V DC, while incorporating 200A of continuous ratings.  This dual sensing model allows charging of batteries in instances when the auxiliary battery may also be charged by an external source, such as an external AC battery charger or solar panels. When the auxiliary battery reaches 26.4V from its external source, the SBI224D will then charge the start battery as well.  Additionally, the microprocessor-controlled battery isolator has power saving technology that prevents the solenoid from generating high voltage transients. It is used rather than a diode battery isolator due to the voltage drop associated with diode type isolation. Advanced fault detection warns the user of over-voltage, voltage drop, and excessive current draw conditions.  If you’re looking for safe way to charge auxiliary batteries and receive full surge protection, rely on the easy-to-install REDARC Smart Start® SBI224D. The SBI range manages battery charge for your secondary battery banks when on the road to your next great adventure.  2 Year Warranty.


  • Overmold design
  • Compact size and easy installation
  • Silver contacts for longer life and suitable for marine applications
  • Power saving technology
  • Fault indication
  • Fully surge protected

  • MAX. INRUSH CURRENT: 600A
  • MAX. CONTINOUS CURRENT: 200A
  • TURN ON VOLTAGE: 26.4V
  • TURN OFF VOLTAGE: 25.4V
  • TURN ON DELAY: 5 seconds
  • TURN OFF DELAY: 10 seconds
  • STANDBY CURRENT: <5mA
  • WEIGHT: 1.3 lb (600 g)
  • HEIGHT: 3.54" (90 mm)
  • WIDTH: 3.74" (95 mm)
  • DEPTH | LENGTH: 3.94" (100 mm)
  • SYSTEM VOLTAGE: 24V
  • OUTPUT VOLTAGE: 24V DC
  • INPUT FUSE RATING: 200A
  • OUTPUT FUSE RATING: 200A


$350.00
Only 3 left in stock - order soon.
Added to Cart
CANCEL
Get Shipping Quote
Close