For solar modules with:
up to 440 Wp module power
max. 26 A module current
max. 60 V module voltage
MPP solar controller for high-quality motorhomes, caravans and boats. Votronic solar controllers of the "MPP" (Maximum-Power-Point) series with "IU1oU2" charging characteristic are connected as a link between solar panel(s) and battery(ies). With MPP technology, the controller automatically determines the maximum power output (MPP) of the solar modules several times per second. It then transforms the voltage surplus of the solar module to a higher charging current for the battery (realised by high-frequency switching controller technology with high efficiency). This increase in charging current ensures shorter charging times and the best possible power utilisation of the solar system. The MPP solar controllers operate fully automatically, are maintenance-free and offer the following functions:
- MPP charging current increase compared to conventional controllers by 10 % to 30 % (efficiency > 95 %) due to the use of the latest controller technology (microprocessor). The increase in performance is particularly noticeable in the cooler seasons and, for example, during high snow, low and diffuse lighting (hibernation).
- For charging lead-gel, lead-AGM, lead-acid or LiFePO4 complete batteries (with integrated BMS, balancing, safety circuit and approval!) of the specified nominal voltages and for co-supplying consumers connected to these batteries in permanently installed systems with the specified battery capacities and charging programmes.
- The charging voltage is free of peaks and regulated in such a way that overcharging of the batteries is excluded.
- Two battery charging outputs: Automatic charging of the main supply on-board battery (BORD I) and back-up charging and charge maintenance (max. 1 A) of the vehicle starter battery (Start II) with protection against overcharging.
- Monitoring-free charging: Standard protection against overload, overheating, reverse polarity and battery back discharge (in case of insufficient solar power e.g. twilight, at night etc.).
- Parallel/buffer operation: Compliance with charging regulations even with simultaneous operation of loads.
- Overcharge protection: Regulates the charging current of the battery back when there is too much solar power and the battery is full, ensures that the battery is charged as much as possible when power is consumed by immediately recharging.
- "IU1oU2" charging characteristic: Defined charge voltage increase (U1) prevents harmful acid stratification (lead) and ensures equalisation charging of the individual battery cells (lead and lith.), then automatic trickle charge (U2).
- Charging cable compensation: Voltage losses on the charging cables are automatically compensated.
- On-board power supply filter: problem-free parallel operation with wind and motor generators, mains chargers, alternators, etc.
CI bus connection: for displaying all relevant data on a central vehicle display.
- Measurement output for EBL, possibly existing electrical block in the living area of the vehicle: Enables convenient use of a (solar) current display built into the electrical block to check the solar system.
Please be sure to check the compatibility of your Schaudt electrical block (EBL) and the corresponding control and display panel in advance, as we cannot accept any warranty for this.
- Switching output "AES" (only MPP 260 CI, MPP 360 CI and MPP 440 CI): Causes refrigerators with "AES" (Automatic Energy Selector, Electrolux / Dometic) to switch automatically from gas to 12 V operation if there is a permanent surplus of solar power.
- Connection for battery temperature sensor (art. no. 2001): In the case of lead batteries, the charging voltage is automatically adapted to the battery temperature, resulting in better full charging of the weaker battery in cold weather, and avoiding unnecessary battery gassing and load in summer temperatures.
LiFePO4 batteries: Battery protection at high and especially at low temperatures.Absolutely recommended if the battery temperature can drop below 0°C during operation.
- Ready to plug in for connection of the Votronic solar display units LCD-Solar Computer S for optimum control of the system.
Technical data:
Nominal battery voltage (AC) in [V]: 12
Solar module power max. [Wp]: 440
Solar module current max. [A]: 26.0
Solar module voltage max. [V]: 50
Charging current Batt. I / II max. [A]: 32.0 / 1.5
Charging characteristic: IU1oU2
Battery type adjustable: Acid, Gel, AGM, LiFePO4
Self-consumption in [A]: 0.004
Overcharge protection: yes
Reverse current block (night operation): yes
On-board power supply filter: yes
Number of charging outputs: 2
Protection against overload, overheating, reverse polarity: yes
Temperature sensor connection: yes
Compensation of voltage losses on the charging cables: yes
Connection LCD solar computer S: yes
Output EBL solar current display: yes
Temperature range [°C]: -20 to +45
Dimensions in [mm] - Dimensions incl. mounting flanges, without connections: 131 x 77 x 40
Weight [g]: 285
Standards (CE)
Ambient conditions, humidity: max. 95% room humidity, non-condensing
Delivery: Operating instructions
Charging programmes:
1: "Gel": Charging programme for gel batteries, characteristic IU1oU2.
Adapted to sealed, gas-tight gel/dryfit batteries with fixed electrolyte, which generally require a higher charging voltage level and longer U1 holding times in order to achieve short charging times with particularly high capacity storage and to avoid long-term battery "starvation".
2: "AGM": Charging programme for AGM/fleece batteries, characteristic IU1oU2.
Intended for charging sealed, gas-tight AGM (Absorbent-Glass-Mat) batteries in lead-fleece technology, which require a particularly high U1 level with coordinated holding times for full charging and then a moderate U2 level for charge retention (plate and round cell technology).
4: "UNIVERSAL": Charging programme for lead-acid/wet/AGM batteries, characteristic IU1oU2
Universal programme for charging and charge maintenance of acid batteries in vehicles (mixed mobile/stationary). With medium U1 level, still offers short charging times, good charging factor and good acid mixing for open and closed, low-maintenance, maintenance-free standard, traction, lighting, solar and heavy-duty batteries, as well as AGM batteries with normal U1 level.
Li: "LiFePO4": Charging programme for lithium batteries, characteristic IU1oU2
Charging programme adapted to lithium LiFePO4 batteries with their own BMS and prescribed or built-in protective circuitry.
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Angaben zur Produktsicherheit/GPSR:
Marke/Trademark: Votronic
Hersteller/Manufacturer: VOTRONIC Elektronik-Systeme GmbH, Johann-Friedrich-Diehm-Str. 2, 36341 Lauterbach, info@votronic.de
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