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MS is a series of controllers with the most advanced MPPT technology, mainly used in medium size solar stand alone power system. MS supports solar charge only, for battery system 12/24/36/48V. It is negative grounded design, and with Bluetooth module built inside for APP monitoring and operation in mobile phone.
12/24V Auto MPPT Solar Charge Controller- Negative Grounded Model
Model No.: VENUS-MS2420N ( MPPT Solar Controller)

Advanced Maximum Power Point Tracking (MPPT) Technology
High Quality & Functions
Reliable Electronic Protections
Extensive Device Functions
Application:

RV/Caravan Marine Solar Home Solar Bag
| Solar Controller Parameter | Value | ||||||||
| Model No. | MS2420N | ||||||||
| System Wiring Grounded | Negative Grounded | ||||||||
| Battery System Voltage | 12V/24V Auto (FLD/GEL/SLD) Manual (Li/User) |
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| No-load Loss | 12mA/12V ; 10mA/24V | ||||||||
| Max Solar Input Voltage | <100Voc | ||||||||
| Rated Solar Charge Current | 20A | ||||||||
| Max Solar Input Power | 300W/12V ; 600W/24V | ||||||||
| Operating Temperature | -35ºC ~ +45ºC | ||||||||
| IP Protection | IP34 | ||||||||
| Net Weight | 1.0 KG | ||||||||
| Communication Port | RS485 & Bluetooth(APP) | ||||||||
| Operating Altitude | ≤ 3000 meters | ||||||||
| Controller Dimension | 190*120*59mm | ||||||||
| Battery Voltages | Battery Parameters | ||||||||
| Battery Types | FLD | SEL | GEL (default) |
USER (adjustable) |
LI (adjustable) |
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| Equalize Charge Voltage | 14.8V*n | 14.6V*n | — | Default | — | ||||
| Boost Charge Voltage | 14.6V*n | 14.4V*n | 14.2V*n | Default: GEL | Default: 14.2V*n | ||||
| Float Charge Voltage | 13.8V*n | Default: GEL | — | ||||||
| Boost Charge Recovery Voltage | 13.2V*n | Default: GEL | — | ||||||
| Over-discharge Recovery Voltage | — | — | — | ||||||
| Over-discharge Voltage | — | — | — | ||||||
| Auto Temperature Compensation | -3mV/2V/ºC | Default: GEL | — | ||||||
| Accessory List | Package Status | ||||||||
| External Temperature Sensor | Yes | ||||||||
| Remote LCD Meter | Optional | ||||||||
| Bluetooth Module | Yes/Inbuilt | ||||||||
| Parallel Charge Use Cable | Optional | ||||||||
| Installation Guidance Paper | Yes | ||||||||
| User Manual | Yes | ||||||||