DL300 Dump Load and Controller, 24 Volt

APRS World, LLC's DL300 series dump controller and load is an integrated solution designed to prevent 24 volt batteries from overcharging. It is designed to be used with small wind, solar or hydro systems. The DL300 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.

Technical Specifications:

Operation

• 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, DL300-24

• 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

Connections

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

Mounting

• 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: 470 mm x 88 mm x 95mm (18.5 in x 3.5 in x 3.74 in)
• Weight: 1.94 kg (4.28 lbs)
• Shipping Dimensions: 508 mm x 102 mm x 108 mm (20 in x 4 in x 4.25 in)
• Shipping Weight: 2.15 kg (4.75 lbs)

Materials

• 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