7kW Stacked Solar-Storage DC Charge/Discharge System

Highlights of 7kW Stacked Solar-Storage DC Charge/Discharge System

• All-in-one design cuts extra accessory expenses

• Stack layout supports gradual capacity expansion

• Seamless matching with household solar panels

• Auto switchover amid sudden grid power failure

• Optimized DC architecture elevates energy yield

• Compact structure simplifies on-site installation

Specification of 7kW Stacked Solar-Storage DC Charge/Discharge System

7 kW stacked photovoltaic-storage DC charging/discharging system
UHS7KYE-CCS2BD
technical specifications
product model		UHS7KYE-CCS2BD
EV Side Parameters	power rating	7kW
	DC Side Voltage Range	Rectification Mode: 150 VDC to 1000 VDC (constant current of 23.3 A for 150 VDC to 300 VDC)
		Inversion Mode: 300 VDC to 1000 VDC
	DC side current range	0–23.5 A (charging)
		0–25 A (Discharge)
	Voltage stabilization accuracy	≤ ±0.5%
	Steady Flow Accuracy	≤ ±1%
	Charging Terminal Type	CCS1/CCS2/GB/T: The default gun line length is 3 meters
Grid-side parameters	Ac Side Standard	Single-phase two-wire system with PE (L/N/PE)
	Ac Side Voltage	230Vac±15%（195-265Vac）
	Maximum current on the AC side	43.75 A (calculated based on a 10% overload)
	AC rated power	7kVA
	Grid Frequency	50Hz/60Hz
	power factor	≥ 0.98 (output power at 50% to 100% load)
	harmonic current	≤ 5% (at 50% to 100% load output power)
Off-grid Parameters	rated voltage	220Vac
	rated frequency	50Hz/60HZ
	power rating	5kVA
	rated current	21.7A
	Voltage Harmonics	< 3%
	switching period	<10 ms (The system integrates grid-on/off switching functionality, requiring no additional STS configuration)
cell	Charge/Discharge Cut-off Voltage	350Vdc ~ 450Vdc
	rated voltage	409.6Vdc
	Charging and discharging current	Route 1 (13.89A)
	Rated charge/discharge power	Route 1 (5 kW)
	communication interface	CAN 2.0
	Module Nominal Capacity	5kWh
	user interface	Displays battery operating status, SOC, alarm information, W1F1 status, heater status, and more.
	protection feature	Overcharge protection, undervoltage protection during discharge, overcurrent protection, short-circuit protection, high/low temperature protection, DC polarity reversal protection, etc.
	Expand	Supports up to 4 units connected in parallel, each with a capacity of 20 kWh.
	Battery Brand	Xinwangda SunESS-H High-Voltage Stack Energy Storage System
PV Side Parameters	Maximum Input Power	10.5kW
	Maximum DC Voltage	550V
	starting voltage	120V
	rated voltage	360V
	MPPT Operating Voltage Range	90V-500V
	MPPT quantity	2
	Maximum input current per MPPT channel	15.0A
	Maximum short-circuit current per MPPT circuit	20.0A
else	outline dimension	7 kW (without battery): Length 655 mm ★ Width 221 mm ★ Height 740 mm
		7 kW/5 kWh: Length 655 mm ★ Width 221 mm ★ Height 1340 mm
		7 kW/10 kWh: Length 655 mm ★ Width 221 mm ★ Height 1655 mm
	net weight	65 kg (excluding battery)
	maximal efficiency	≥ 95% (Rectifier mode / Inverter mode)
	noise	<55 dB (rated power, ambient temperature 25°C)
	show	LCD/LED
	operating temperature range	-30℃—55℃
	Monitoring Interface	W-Fi/Bluetooth/DRM/LAN (optional)/4G (optional)
Certification and Standards	Safety standards: EN 61851-21, EC/EN 62109, EN 62477, EMC, EN 61000-6-1/2/3/4
	Grid-connected VDE 4105 VDE 0124 / EN50549