Pilot Environment

ET-NC G3 Series (50~100A) MPPT Charge Controller

The ET-NC G3 MPPT Charge Controller for Battery Storage is a high-efficiency solar charging solution designed for off-grid and hybrid energy systems. With 50A-100A charging capacity and 99.9% MPPT tracking efficiency, it maximizes power generation from solar panels while ensuring stable and reliable battery charging. Compatible with 12V, 24V, and 48V battery systems, it supports both lithium and lead-acid batteries, making it a versatile choice for various solar energy applications. Equipped with RS485 communication, the ET-NC G3 allows for seamless integration with Bluetooth, WiFi, or 4G modules, enabling real-time remote monitoring and system control. Its CAN bus interface supports parallel operation of up to six controllers, making it ideal for large-scale solar energy storage solutions. Whether used in residential, commercial, or industrial setups, this controller ensures efficient energy management and system scalability. Built for durability and long-term performance, the ET-NC G3 features a rugged metal housing and IP32/IP43 protection, providing resistance to dust, moisture, and extreme temperatures. Advanced electronic protections, including overcharge, over-discharge, short circuit, and thermal safeguards, help extend battery life and maintain system stability. With its high-efficiency MPPT tracking and smart charging capabilities, this controller is an excellent choice for anyone looking to optimize their off-grid solar battery storage system.

  • 2-year warranty
  • Worldwide support
  • Certified & compliant
ET-NC G3 Series MPPT Charge Controller for Battery Storage (1)

Configure your model

DC Load Output
Max PV Input Power
Max PV Open Circuit Voltage
Rated Charging Current
Number Of Mppts
Display
System Nominal Voltage

Select every option to reveal the matching model.

Specifications

Model: ET10420NC G3
Electrical Parameters
Battery Rated Voltage
12/24/48VDC or Auto
Controller Operating Voltage Range
8–62V
Battery Type
AGM (Default) / Gel / Flooded / User
Lithium Battery Type
LiFePO₄ / Li(NiCoMn)O₂ / User
Rated Charging/Discharging Current
100A
Rated Charging Power
1,300W/12V; 2,600W/24V; 5,200W/48V
Maximum Charging Power
1,300W/12V; 2,600W/24V; 5,200W/48V
PV Maximum Open-circuit Voltage
200V (@ lowest temperature); 180V (@ 25℃)
MPPT Operating Voltage Range
(Battery voltage plus 2V, and > 28V) to 144V (@ 25 ℃)
Tracking Efficiency Maximum
≥ 99.5%
Conversion Efficiency
98.5%
Temperature Compensation Coefficient
-3mV/℃/2V (Default)
Self-consumption (Enabled Communication)
98mA/12V; 60mA/24V; 46mA/48V
Self-consumption (Disabled Communication)
48mA/12V; 25mA/24V; 14mA/48V
Grounding Type
Common negative grounding
Dry Contact (Oil Generator)
Rated value: 5A/30VDC; Maximum value: 0.5A/60VDC
RS485 Communication Port
5VDC/200mA (RJ45)
Mechanical Parameters
Dimension (mm) (L×W×H): IP43 (Controller & White Terminal Cover)
352 × 263 ×158
Dimension (mm) (L× W×H): IP32 (Controller Only)
352 × 212 ×149
Mounting Dimension (L×W)
340 × 140
Mounting Hole Size (mm)
Φ7
Wiring Terminal
2AWG/35mm²
Recommended Cable
2AWG/35mm²
Net Weight (kg): IP43 (Controller & White Terminal Cover)
7.79
Net Weight (kg): IP32 (Controller Only)
7.55
Environmental Parameters
Operating Temperature Range
-25℃ to +60℃ (Derating when temperature is higher than 40℃)
LCD Temperature Range
-20℃ to +70℃
Storage Temperature Range
-30℃ to +70℃
Relative Humidity
5%–95% (N.C)
Altitude
5,000m (>2,000m Derating)
Enclosure
IP43 (Controller & White Terminal Cover); IP32 (Controller Only)
Pollution Degree
PD2
Certification
Safety
EN/IEC62109-1
EMC
EN61000-6-1 / EN61000-6-3
FCC
47 CFR Part 15, Subpart B
RoHS
IEC62321-3-1

Highlights

  • Supports 12V/24V/48V systems; Charge current: 50A–100A
  • All metal die-casting shell, IP43
  • Some models supports two PV inputs
  • Max. MPPT tracking efficiency: 99.9%; Max. Conversion efficiency: 98.5%
  • Compatible with AGM, Gel, Flooded, LiFePO4 batteries, etc.
  • Constant voltage output function
  • Communication interface with electrical isolation
  • CAN: Parallel operation of up to 6 devices (with or without batteries)
  • BMS: Ensures reliable lithium battery charge management
  • RS485: Optional Bluetooth, WiFi, or 4G modules
  • Real-time data recording, event logging, and power statistics function
  • EMC compliant (CLASS B)

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