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ESG-E Series | 125kW / 261kWh
ESG-E Series | 125kW / 261kWh

ESP Series | 10kW – 20kW / 40.8kWh – 51.2kWh

Low-Voltage Integrated All-in-One ESS | 48Vdc / 51.2Vdc System | 10-20kW Rated Power | Up to 51.2kWh LiFePO4 Storage | Single-Phase 230Vac | IP54

The MUST ESP Series is an advanced, low-voltage all-in-one cabinet energy storage system integrating a high-performance 10kW/20kW hybrid inverter and high-capacity LiFePO4 rack battery storage up to 51.2kWh. Designed for residential, microgrid, and light commercial applications, it supports seamless on/off-grid operation, smart thermal management, and multi-unit AC parallel expansion up to 10 units. Encased in an IP54-rated cabinet with 99.8% MPPT efficiency, the ESP Series delivers superior energy independence, power backup security, and optimized self-consumption.

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Description

Description

  • All-Scenario Hybrid Power: Built-in 10kW/20kW inverter supporting both on-grid and off-grid systems with ultra-fast transfer time (10ms typical UPS / 20ms APL).
  • High-Capacity, Long-Life Battery: Scalable up to 51.2kWh with 51.2V 200Ah LiFePO4 rack modules, delivering 8,000+ life cycles (@ 80% DOD, 25°C).
  • All-in-One Compact Design: Fully integrated PACK + PCS architecture eliminates complex on-site wiring, drastically reducing installation time and engineering costs.
  • Intelligent Thermal Management: Smart cooling system maintains optimal internal operating temperatures, maximizing cell lifespan and system reliability.
  • Flexible Expansion & Smart O&M: Supports multi-unit AC paralleling up to 10 units, online remote monitoring, and multiple interfaces (WiFi / USB / CAN / RS485).
  • Robust Protection & Certification: IP54 protection with optional C3/C5 anti-corrosion coating; certified to IEC62619, CE-LVD (IEC62109-1/-2), CE-EMC, and RoHS.
Technical Parameters ESP-5010 ESP-4020
Rated AC Output Power 10000 W 20000 W
Nominal Battery System Voltage 48 Vdc (51.2Vdc nominal per pack) 48 Vdc (51.2Vdc nominal per pack)
Battery Specification 51.2Vdc 200Ah LiFePO4 51.2Vdc 200Ah LiFePO4
Number of Battery Packs / Total Energy 5 Packs / 51.2 kWh 4 Packs / 40.8 kWh
Battery Cycle Life ≥ 8000 cycles @ 80% DOD, 25°C ≥ 8000 cycles @ 80% DOD, 25°C
Max. Recommended DC PV Power 10000 W 20000 W
Nominal DC Operating Voltage 360 Vdc 360 Vdc
Max. DC Voltage / MPPT Voltage Range 500 Vdc / 90 V – 450 Vdc 500 Vdc / 90 V – 450 Vdc
Max. PV Input Current 27A / 27A 27A / 27A / 27A / 27A
No. of MPPT Trackers / Strings 2 Trackers / 2 Strings 2 Trackers / 4 Strings
AC Input Voltage Waveform Sinusoidal (utility or generator) Sinusoidal (utility or generator)
AC Input Type / Voltage Range Single phase / 230V: 90 – 280V Single phase / 230V: 90 – 280V
AC Grid Frequency Range 50/60Hz (40 – 65Hz) 50/60Hz (40 – 65Hz)
Max. AC Input Current 53 A 106 A
Transfer Time 10ms typical (UPS VDE) / 20ms typical (APL) 10ms typical (UPS VDE) / 20ms typical (APL)
Nominal AC Output Voltage 220 / 230 / 240 Vac 220 / 230 / 240 Vac
Output Frequency / Power Factor 50/60 Hz / 1.0 50/60 Hz / 1.0
Max. AC Output Current 43.5 A 86.9 A
Grid Type Single phase / Off grid Single phase / Off grid
Charging Curve 4-stage adaptive with maintenance 4-stage adaptive with maintenance
Max. Charging / Discharging Power 10000 W 20000 W
Max. Charging / Discharging Current 210 A 420 A
Max. Efficiency / MPPT Efficiency 92% / 99.8% 92% / 99.8%
Machine Dimensions (WHD) 650 * 2050 * 700 mm 650 * 2050 * 700 mm
Operating Temperature Range -15°C to 40°C -15°C to 40°C
Ingress Protection Rating IP54 IP54
Communication / Display WiFi / USB / CAN / RS485 / LED + LCD WiFi / USB / CAN / RS485 / LED + LCD
Audible Noise ≤ 60 dB ≤ 60 dB
Standard Warranty Inverter: 5 years / Lithium Battery: 10 years Inverter: 5 years / Lithium Battery: 10 years
Certifications & Standards IEC62619, LVD(IEC62477), RoHS, CE-EMC, CE-LVD IEC62619, LVD(IEC62477), RoHS, CE-EMC, CE-LVD

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