KR33-H Series
The KR33-H Series residential products from the Rack series have been specially designed for residential applications by Sunred. It has multiple battery modules, and each module has an integrated smart BMS, which offers great advantages in terms of safety, life cycle, energy density, and temperature range.
Model: KR33-H Series
Capacity (kVA): 400
Input information
Voltage (Vac): L-L: 288-552 (407-552 at full load)
Frequency (Hz): 40-70
Power factor: ≥0.99
THDi: ≤3% (total resistive load)
Phase: 3W+PE/3W+N+PECapacity (kVA): 400
Input information
Voltage (Vac): L-L: 288-552 (407-552 at full load)
Frequency (Hz): 40-70
Power factor: ≥0.99
THDi: ≤3% (total resistive load)
Phase: 3W+PE/3W+N+PE
BYPASS Parameters
Voltage (Vac): ±10%/±15%/±20% (default ±20%)
Frequency (Hz): ±5%/±10% (default ±10%)
Overload: 124%: long term; 150%: 10 min; 170%: 1 min; above 170% 10 s
OUTPUT Parameter
Voltage (Vac): L-L: 480±1%
Frequency (Hz): 50/60±0.5% (battery mode)
Power factor: 1.0/ 0.9 (optional)
THDv: ≤1% (total resistive load)
AC/AC Efficiency (Max.): 97%
Overload: 105%: long term; 125%: 10 min; 150%: 1 min; 170%: 1 s; above 170%: 200 ms
Transfer Time (ms): 0 (Main Mode-Battery Mode), ≤1 (Main Mode-Bypass Mode)
Crest Factor: 3:1
Battery parameters
Battery type: Lead-acid/lithium-ion batteries S3
Voltage (Vac): 528 (408-660, 528-660 at full load) // 576 (456-660, 576-660 at full load)
Charging current (A): 25-100 // 25-200
General parameters
Communication: RS232/RS485, RTS485/BMS, Dry contact. Optional: SNMP card
Display: 7'' touch screen
Noise (dB): <75 // <80
Working temperature (°C): -5~40
Altitude (m): 1000
Relative humidity: 0 ~ 95%, non-condensing
Protection rating: IP20
Agency/Certification/Compliance: EN IEC 62040-1, EN IEC 62040-2, EN IEC 62040-3
Dimensions (W×D×H) (mm): 1000×900×1950 // 1400×900×1950
Weight (kg): 750 // 1150
Reliability
● Independent air duct design, which damages printed circuit boards and other sensitive internal components
● Protection against energy feedback, which can carry electrical charge
● Highly reliable IGBT modules
● Power input, which prevents impact on the input network
● Short-circuit protection, adjustable from 20 to 200 ms
● Auxiliary power supply redundancy design, which improves system reliability
Intelligence
● Smart standby mode: the entire machine enters standby mode to improve efficiency
● Startup assistant: helps you start up quickly and correctly
● Compatible with lithium-ion battery, long battery life, compact size
● Fault transition management: quickly locate the fault
● Intelligent online capacitance detection: manages component service life
● No-load self-charging test function: saves costs on load rental and energy loss
Green Energy
● High AC/AC efficiency of up to 97%, reduces heat dissipation and limits energy consumption costs
● Wise ECO mode efficiency of up to 98% High AC/AC efficiency of up to 97%
● Low THDi <3%, reduces power grid pollution
