SmartSolar MPPT RS 450/200
Victron MPPT RS 450/200 wiring diagram
48 V MPPT with four independent trackers, 200 A charging and 11520 W total output. Each tracker needs its own array. Observe both the 450 V absolute ceiling and the eight-times-float-voltage condition.
- Compatible systems
- 48 V
- Rated output
- 200 A
- PV open-circuit limit
- 450 V
Wiring diagram
How the MPPT RS 200 is wired.
Open this example in Crimp to use your own parts and cable lengths. Review the assumptions and installation notes as you adapt the circuit.
Cable sizing for this example
Use the diagram as a starting point for your installation. Replace the example equipment and cable lengths with your own, and check the connections against your exact model's instructions.
3 m one way
48 V system
- Wire
- 70 mm² · 2/0 AWG
- Example fuse
- 250 A
- Design current
- 200 A
- Voltage drop
- 0.6%
Sized against ABYC E-11. The design current is the unit's rated output. The length is one way; voltage drop includes an equal-length return.
Run-length and manufacturer assumptions
The editable example uses 3.048 m (10 ft) runs unless a shorter run is stated. Metric overviews round these to 3 m. Adapt the parts and lengths to your installation before choosing cable and protection.
Supporting parts
- 6.1 m total of 70 mm² (2/0 AWG) marine cable
- Terminations for 70 mm² cable, matched to the equipment's screw terminals, leads or studs
- 250 A fuse and holder on the positive run
- Heat-shrink, strain relief and terminal boots sized to the cable
Check stud sizes, fuse type, run length and how warm the space gets against the gear you actually have before you order.
Installation notes
Before you install.
Open a question for model-specific guidance and sources.
Verified against the manufacturer's documentation (rev. Rev 13 — 05/2024), checked 2026-10-01. Manufacturer documentation →
Which MPPT RS is this?
The SmartSolar MPPT RS 450/200 is an isolated solar charger for nominal 48 V battery systems, with 4 independent trackers and up to 200 A charging. The manual lists 11520 W total DC charging power and 4000 W per tracker. The generic catalog name does not select Tr screw terminals or MC4 connectors; verify that suffix before specifying PV connections.
What does the symbol leave out?
Crimp shows one PV + / PV − pair, but the physical unit has 4 independent PV inputs. Each tracker must receive its own array; do not connect the same array to several trackers. The symbol cannot validate those separate strings. BATT + / BATT − map to the battery studs; protective grounding, remote control, voltage/temperature sensing, relay, and communication connections are omitted.
The specification table gives 18 A operating input per Tr tracker, 16 A per MC4 tracker, and 20 A short-circuit current per tracker for reverse-polarity protection. These are different limits; do not multiply a single terminal allowance to justify an unreviewed combined input.
Which voltage limits matter?
450 V is the absolute PV ceiling, with 120 V startup and a nominal 65–450 V tracking range. There is an additional condition: array Voc must remain below eight times the battery float voltage. At 54 V float, that is 432 V. Design the string for cold weather while keeping the battery's approved settings; do not raise float voltage merely to accommodate an oversized string.
An external PV disconnect is required, rated for DC service at at least 450 V and the expected array current. It is not built into the charger.
What battery protection is specified?
Printed page 8 specifies a 250 A DC fuse, minimum 70 mm² per polarity for 0–2 m, and two 70 mm² conductors per polarity for 2–5 m. The table's battery-capacity minima are 400 Ah lead-acid or 100 Ah lithium; battery charge acceptance and BMS limits still govern. Battery-stud maximum torque is 14 N·m. Parallel conductors, where required, need a separate installation check.
How is it commissioned?
Mount indoors in a dry, ventilated position; IP21 is not suitable for wet locations. Follow the manual's connection sequence, verify polarity on every tracker, and set the battery profile in VictronConnect before enabling charging. Integrate the battery's charge-permission controls and confirm sensor operation. The catalog does not model tracker independence or a complete high-voltage installation.
Technical reference
Specifications and terminal map.
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Catalog specification
48 V MPPT with four independent trackers, 200 A charging and 11520 W total output. Each tracker needs its own array. Observe both the 450 V absolute ceiling and the eight-times-float-voltage condition.
- Compatible systems
- 48 V
- Rated output
- 200 A
- Planning charge current
- 200 A
- PV open-circuit limit
- 450 V
Terminal map
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
PV +
positive · input
PV −
negative · input
BATT +
positive · output
BATT −
negative · output
Sources and sizing method
Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.
Example sizing. Sized against ABYC E-11. Boats built to UK or EU rules answer to ISO 13297 — check these figures against it before you build. Results use the example current and run length shown above. Set your actual equipment, lengths and installation conditions in Crimp before choosing hardware.
Read how the sizing worksNext step
Plan your installation with MPPT RS 200.
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