Overview
This MPPT solar charge controller kit is based on the EPEVER BN series and is supplied as a 40A controller set (Tracer4215BN) with an MT50 remote meter, a remote temperature sensor, and a USB to RS485 converter adapter for PC monitoring. It is designed for 12V/24V battery systems and supports negative grounding with a 150V (138V) PV input rating.
Key Features
- Negative grounding design; max PV input voltage: 150V (138V @ 77°F); also stated as max PV open circuit voltage: 150V / 138V
- Advanced MPPT technology with tracking efficiency no less than 99.5%
- Real-time dual tracking; multi-peak recognition; smart power limit (auto-throttling)
- 108V wide operating range; compatible with 17V-102V PV modules
- Metal case for natural heat dissipation; dual-coil cooling architecture and enhanced surge immunity
- Charging profile support: Sealed, Gel, Flooded, and User; 4 stage charging (feature list)
- Charging algorithm shown as 3-stage battery optimization: Bulk → Boost → Float
- Temperature compensation: ±3mV/°C
- Standard Modbus interface with RS485 port
- Remote control/monitoring option via Solar Guardian App requires an Epever BLE/WiFi 2.4G RJ45 D adapter (not included)
Specifications
| Parameter | Value |
|---|---|
| Controller model (set) | Tracer4215BN |
| Nominal system voltage | 12V, 24V |
| Rated charge current | 40A |
| Rated load current | 20A |
| Max PV open circuit voltage | 150V / 138V |
| Max PV input voltage (noted) | 150V (138V @ 77°F) |
| Max PV input power | 520W (12v battery) / 1040W (24v battery) |
| MPPT tracking efficiency | No less than 99.5% |
| PV module compatibility (noted) | 17V-102V PV modules |
| MT50 faceplate dimension | 98 x 98 mm / 3.86 x 3.86 inch |
| MT50 frame dimension | 114 x 114 mm / 4.49 x 4.49 inch |
| MT50 connector type | RJ45 |
| MT50 meter cable | Standard 2m, Max 50m |
| MT50 ambient temperature | -20°C to +70°C / -4°F to 158°F |
| Remote temperature sensor cable length | 3 M |
| PC communication (USB to RS485) | For Solar Station PC software monitoring and firmware update |
What’s Included
- Solar charge controller: SolarEpic/EPEVER Tracer4215BN (40A, BN series MPPT)
- MT50 remote meter (RJ45)
- MT50 meter cable: standard 2m
- Remote temperature sensor (3 M)
- USB to RS485 converter adapter / PC monitoring communication cable (used with Solar Station PC software; cable length stated as 3m)
Applications
- 12V/24V solar battery charging systems for home, industrial, or commercial use
- PV + battery systems with optional RS485/Modbus monitoring, and example system integration with inverter loads
Manuals
Support
For product compatibility questions (PV voltage, battery type/profile settings, RS485 monitoring), contact service@tsolar.top or visit https://tsolar.top/.
Video
Details
The EPEVER BN series MPPT charge controller features a large heat-sink body, negative-ground design, and an RS485 Modbus port with an included MT50 meter and adapter cables.
The EPEVER Tracer MPPT controller lists a 99.5% max-efficiency MPPT design with real-time dual tracking and multi-peak recognition for variable conditions.
The Tracer4215BN MPPT controller uses a 3‑stage charging algorithm (bulk, boost, float) and includes an MT50 meter for monitoring.
Remote control and real-time system monitoring are available through the EPEVER Solar Guardian app when paired with a BLE/WiFi 2.4G RJ45 D adapter.
The dual power mode controller supports sun-direct drive operation and LiFePO4 battery compatibility for flexible solar power setups.
The Tracer4215BN wiring layout connects multiple 150W panels through a bus bar combiner and DC breaker to a battery bank, with an MT50 remote meter and inverter in the circuit.
The Tracer4215BN MPPT controller bundle includes the MT50 remote meter plus a battery temperature sensor and USB‑RS485 cable for monitoring and PC communication.
