Dometic 30 Amp MPPT Dual Bank Solar Controller for PowerTrak RV-C

The Dometic 30 Amp MPPT Dual Bank Solar Controller Charges Your House Bank and Maintains the Chassis Battery Inside a PowerTrak RV-C System

The Dometic 30 Amp MPPT Dual Bank Solar Controller (model SC-DB-MPPT-30-12) is a maximum power point tracking charge controller with two battery outputs, rated for 30 amps of total charge current and up to 600 watts of solar at 12 volts. The main output charges your house bank, and a secondary output trickle charges the chassis or starter battery at up to 2.5 amps so it stays ready through long storage.

It's part of the PowerTrak line and connects to the RV-C network, where the PowerTrak display shows its solar, battery and charging data and changes its settings. Choose the controller alone if your coach already has a PowerTrak display, or the kit with the display, a 25 foot RV-C harness and a terminating resistor harness.

Dometic 30 Amp MPPT Dual Bank Solar Controller Features

MPPT Tracking That Finds the Right Peak in Shade

The controller continuously tracks the array's maximum power point as sun and temperature change, with MPPT tracking efficiency up to 99.9% and conversion efficiency up to 98%. When partial shade on a series string creates several power peaks, its algorithm chooses the highest one. A 96 volt open circuit input allows series wiring.

Two Outputs for House and Chassis Batteries

Battery 1, the main output, charges with the full current and the selected profile. Battery 2 is trickle charged at up to 2.5 amps, adjustable, and never equalizes. Battery 1 or energized panels can power the controller; Battery 2 alone can't. For a single bank, use Battery 1 only.

Four-Stage Charging With Lead Acid and Lithium Profiles

Charging runs in bulk, absorption, float and, for flooded batteries, equalize stages. Profiles cover Gel, AGM, Flooded and LiFePO4, plus two Custom profiles. At 12 volts, bulk and absorption are 14.1 volts for Gel and 14.4 volts for AGM, Flooded and LiFePO4, held 120 minutes by default. Float is 13.7 volts for lead acid and 14.0 volts for LiFePO4, and flooded batteries equalize at 14.9 volts every 30 days by default. With a battery temperature sensor on the external sensor port, lead acid charge voltages adjust at -24 mV per °C.

Built for the PowerTrak RV-C Network

A standard RV-C Molex port connects the controller to the PowerTrak display and other RV-C devices, such as Advanced Lithium batteries and the Advanced Inverter/Charger. DIP switches set its RV-C instance number, and Go Power rates the series for up to eight stacked controllers on one system. The PowerTrak display reports solar power, voltage and current, battery voltages, charge state, temperatures and amp hours today, and Bluetooth monitoring in the Go Power! Connect app runs through the display.

Tool-Less Terminals and Status LEDs

Under the removable cover, push-in lever terminals take the wires with no tools. Green, yellow and red LEDs show charging, warnings and faults at a glance.

Real-World Applications

PowerTrak coaches. Add solar charging that shows up on the same touchscreen as your batteries and inverter.

Motorhomes in storage. Keep the chassis battery maintained while the house bank charges.

Practical Comparison

SC-DB-MPPT-30-12 Versus the SC-DB-MPPT-40-12

Both share the same case size, outputs and PowerTrak integration. The 40 amp model is rated for 900 watts at 12 volts and Go Power lists it to UL 1741. The 30 amp model is rated for 600 watts and holds full output without derating up to 131°F (55°C), versus 104°F (40°C) for the 40 amp model.

SC-DB-MPPT-30-12 Versus the GP-RVC-30-MPPT

In Go Power's comparison, the GP-RVC-30-MPPT charges two banks with house priority and works with the optional GP-RVC-R remote, but it isn't UL listed. The Dometic model maintains the second battery at up to 2.5 amps and is configured through a PowerTrak display.

Buyer Guidance

Plan the Display, Array and Wiring

Settings, including battery type, are changed on the PowerTrak display, and the factory default is AGM, so choose the kit if your coach has no PowerTrak display. Keep the array's open circuit voltage times 1.25 at or under 96 volts. Go Power recommends staying at or below about 400 watts, 80% of the rating, and estimates about 30Ah per 100 watts per day in spring and summer and 12Ah in fall and winter. The manual calls for 10 AWG with a 30 amp fuse to Battery 1 and 16 AWG with a 10 amp fuse to Battery 2, wire rated at least 105°C, and runs of no more than 25 feet from array to battery, 10 feet to Battery 1 and 20 feet to Battery 2. Fuses, breakers and a ground fault (GFDI) device aren't included.

Mounting

Surface mount it indoors on a non-flammable wall, vertically with the terminals facing down and 6 inches of clearance above and below, close to the battery. Ground the chassis stud with 8 AWG wire.

This May Be A Good Fit If

• Your coach uses a PowerTrak display or RV-C network
• You want to maintain a chassis battery from solar
• Your array is up to 600 watts at 12 volts
• You may add more controllers later

Common Questions

Controller Only or the Display Kit?

Buy the controller alone if your coach already has a PowerTrak display. Choose the kit to see solar and battery data on a touchscreen, change profiles and use the Go Power! Connect app, which connects through the display.

Does It Work With Lithium Batteries?

Yes. Select the LiFePO4 profile on the PowerTrak display. Temperature compensation doesn't apply to lithium.

Can I Use It on a 24 Volt System?

The manual rates the SC-DB series for 12 or 24 volt nominal systems, with up to 1,200 watts of solar at 24 volts. It's sold as a 12 volt model, so check with the Outbound Power team before planning a 24 volt install.

What Warranty Does It Carry?

Go Power lists a 5-year warranty against defects in materials and workmanship.

What's Included

• 1 x Dometic SC-DB-MPPT-30-12 Solar Controller
• 4 x Mounting Screws (#8 x 1 In)
• 1 x Quick Start Guide
• 1 x PowerTrak Color Touchscreen Display (Controller + PowerTrak Display Kit)
• 1 x 25 Ft RV-C Harness (Controller + PowerTrak Display Kit)
• 1 x PowerTrak Terminating Resistor Harness (Controller + PowerTrak Display Kit)

Solar Charging That Joins Your PowerTrak System

The Dometic 30 Amp MPPT Dual Bank Solar Controller brings MPPT charging, a maintained chassis battery and full PowerTrak RV-C integration to a 12 volt coach. If you'd like help choosing the controller alone or the display kit, or planning RV-C harnessing, the Outbound Power team is happy to help.

Dometic 30 Amp MPPT Dual Bank Solar Controller for PowerTrak RV-C Manuals and Documents

Dometic SC-DB-MPPT-30-12 Manual

Dometic SC-DB-MPPT-30-12 Spec Sheet