Residential ESS
J1-ESS
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3K/5.9K
The SolaX J1 ESS is a high-performance residential energy storage system featuring multi-level BMS protection for safety and 98% efficiency. With 5.8kW continuous output and modular expandability (up to 46.4kWh), it supports smart energy management via SolaX Cloud and flexible operation modes for optimal self-consumption
Product Advantage
The J1-ESS offers a power balance adjustment function, enabling self-sufficiency for single-phase loads, reducing the need to purchase electricity. It supports large PV modules up to 14A per circuit, with independent MPPT inputs for optimal solar energy utilization, even in low-light conditions. The system's wide input range and MPPT capability on all circuits ensure maximum efficiency and flexibility for various solar panel configurations, including up to three roof surfaces.
Safety Protection Compliant with Japanese Standards
Compliant with Japanese standards (certified by JIS and JET)
Reliable dustproof and waterproof performance (compliant with dustproof and waterproof level IP65)
Salt damage protection measures that can be safely used in heavy salt damage and salt-affected areas (compliant with C5-H salt damage protection)
Complies with other standards such as vibration, impact, climate, EMC, etc.
Maximized for Household Energy Consumption
Each circuit 14A can support large PV modules
Standard configuration with MPPT 2·3 independent circuit solar string inputs
Adopts ultra-wide range specifications, allowing even small amounts of sunlight in the early morning to be effectively utilized
SolaX Cloud Intelligent Management System Developed in-House by the Company
Maintenance management & operation via network with remote monitoring
7 days × 24 hours data monitoring and maintenance (optional)
Diverse monitoring methods, Wi-Fi/LAN/4G (optional)
Equipped with output control function and anti-reverse current function. (Using anti-reverse current equipment)
High–efficiency Power Generation Capability of the Entire Circuit with MTTP
All circuits (3 strings) are compatible with MPPT, and different numbers of solar panels can be connected to each circuit
No impact on other circuits, each circuit generates power independently
Compatible with various solar modules under a wide range of input conditions
Available to connect up to 3 roof-mounted solar panels
Product Parameters
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J1ESS-HB58/58-1-
SOLAR DC INPUT
Maximum input voltage (DC)
450V/circuit
MPPT circuit number
2 circuit
MPPT tracking range (DC)
70–450V
MPPT Maximum efficiency
99.9%
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AC OUTPUT
Power supply method
Single-phase 3-wire type
Rated output voltage
AC101/202V
Rated output current
14.9A
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BATTERY MODEL
Type of battery
Lithium iron phosphate battery
Battery capacity
5.8kWh/11.5kWh
Waterproof and dustproof level
IP65
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GENERAL
Dimensions (W x H x D)
90.7 × 90.7 × 27.9 mm
Total Weight
150 kg / 247.5 (150+97.5) kg
Working environment (indoor)
-20°C to 70°C
Cooling mode Natural air cooling
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J1ESS-HB58X/115/173
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SOLAR DC INPUT
Maximum input voltage (DC)
450V/circuit
MPPT circuit number
3 circuit
MPPT tracking range (DC)
70–450V
MPPT Maximum efficiency
99.9%
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AC OUTPUT
Power supply method
Single-phase 3-wire type
Rated output voltage
AC101/202V
Rated output current
29.2A
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BATTERY MODEL
Type of battery
Lithium iron phosphate battery
Battery capacity
5.8kWh/11.5kWh/17.3kWh
Waterproof and dustproof level
IP65
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GENERAL
Dimensions (W x H x D)
90.7 × 90.7 × 27.9 mm
Total Weight
157 kg / 254.5kg (157+97.5) / 352 kg (157+97.5 ×2)
Working environment (indoor)
-20°C to 70°C
Cooling mode Forced air cooling
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Data Download
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Datasheet
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User Manual
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Quick Installation Guide
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File nameLanguageFormatSizeLast updateddownload
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