Off grid inverter

Off Grid Ess

TNH520B-M1-230V / TNH5208-M2-230V / TNH520B-M3-230V / TNH5208-M4-230V

High Efficiency

  • Built-in MPPT solar charger with 120V–450V DC input range
  • Maximum PV input power of 6,000W
  • Maintains battery health through equalization
  • Efficiency up to 93% at 48V DC
  • Operating Temperature Range: Charging 0–50°C; Discharging -20–50°C

Flexible Adaptability

  • Pure sine wave output with 5kW nominal power
  • Supports up to 9 systems in parallel (optional)
  • Compatible with a wide range of solar panels
  • Modular design allows battery expansion up to 20kWh

Assured Safety

  • IP21-rated enclosure
  • Overload capacity:
  • 60s at 102%–110% load
  • 10s at 110%–130% load
  • 3s at 130%–150% load
  • 0.2s at >150% load
  • Long service life with up to 6,000 charge and discharge cycles
  • Certified with CE, MSDS, and UN38.3 standards
Supports WiFi monitoring (optional)
User-friendly LCD interface
Multiple communication interfaces: RS232, USB, Dry Contact
Fast switch time: 10ms (normal mode), 10ms (UPS mode)

Why Off-grid Ess?

Choose Tern Energy's All-in-One Off-Grid Energy Storage System (ESS) for superior efficiency and adaptability. With up to 93% system efficiency, a built-in MPPT solar charger supporting 6,000W PV input, and expandable modular batteries up to 20kWh, it delivers stable, scalable energy solutions for residential and commercial needs. Its 5kW pure sine wave output and fast 10ms switch time ensure reliable power, while advanced battery health technology extends service life to 6,000 cycles, providing a cost-effective and sustainable solution.

Engineered for safety and convenience, Tern Energy's ESS features optional WiFi monitoring, a user-friendly LCD interface, and robust protection measures like overload safeguards and an IP21-rated enclosure. Certified to global safety standards, it combines durability with a compact, lightweight design, offering a reliable and versatile energy storage solution ready to meet the demands of modern off-grid applications.