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SDC300 silent dump load and controller - 24 Volt

5.30 LBS
Calculated at checkout

Product Description

SDC300 Dump Load and Controller - 24 Volt

APRS World, LLC's SDC300 series is a silent version of our DL300 dump controller and load. In addition to operating at an inaudible 20kHz, the circuit board of the SDC300 is conformal coated for marine and demanding applications.

The SDC300 dump controller and load is an integrated solution designed to prevent 12 or 24 volt batteries from overcharging. It is designed to be used with small wind, solar, or hydro systems. The SDC300 is compact and easy to install. It incorporates a 300 watt resistor / heater and controller board in a stout 18 gauge powder coated steel enclosure.



  • PWM (Pulse Width Modulation) for highest charging performance without flicker
  • Selectable three stage charging or over voltage protection mode
  • Selectable for sealed or flooded batteries using jumper
  • Status and fault indicator LEDs

Power, 24 volt version, SDC300-24

  • Operating voltage range: 7 to 32 volts DC
  • Recommended fuse or circuit breaker: 15 amps
  • Integrated load resistor: 3 ohms, 300 watt, wire wound
  • Quiescent current when not load dumping: 3.0mA @ 24 volts
24V Setpoints
Bulk 29.2 28.6
Float 26.8 26.8
Protect 32.0 30.0



  • #10-32 brass screws for V+ and V-
  • Two 12.7 mm (0.5 in) / 19 mm (0.75 in) concentric NPT knockouts and two 12.7 (0.5 in) NPT knockouts


  • Mounts to vertical concrete, metal, drywall, or other non-flammable surface.
  • Uses four #10 screws
  • Body sits 19 mm (0.75 in) out from wall
  • NEMA 1 enclosure for indoor mounting

Weight and Dimensions

  • Dimensions: 470mm x 88 mm x 95 mm (18.5 in x 3.375 in x 3.75 in)
  • Weight: 1.94 kg (4.28 lbs)
  • Shipping Dimensions: 508 mm x 102 mm x 108 mm (20 in x 4.0 in x 4.25 in)
  • Shipping Weight: 2.15 kg (4.75 lbs)


  • Enclosure: 18 gauge mild steel, powder coated black
  • Circuit board: FR-4, 1.6 mm (0.062 in), double sided, plated through holes, solder mask, silk screen, gold plating
  • Hardware: Stainless steel, zinc plated steel, aluminum, and nylon
  • Shipping carton: Corrugated cardboard


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