Solar Inverter KA-series | 18kw/33kW

Advanced energy storage product engineered for reliable power applications, scalable supply, and global B2B project requirements.

Model:: Solar Inverter KA-series | 18kw/33kW
Brand:: VoltCrave

Output Voltage:

Rated Power:

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Multiple PV Inputs with Grid Complementarity

Supports multiple PV inputs and smart PV–grid power complementarity to adapt to various load conditions.

Front-End Wiring for Easy Installation

User-friendly front wiring terminals designed for fast, simple, and tidy installation.

Touch Screen Display for Easy Operation

Intuitive touch interface for quick settings adjustment and real-time system status viewing.

High-Power Fast Charging

Delivers strong charging output even at low battery voltage, providing fast and efficient charging performance.

Multiple Communication Interfaces

Supports RS232, RS485, and dry contact communication, compatible with various lithium battery protocols for charge and discharge management.

Suitable for Multiple Application Scenarios

Ideal for household appliances, commercial offices, emergency backup systems, and communication base stations.

MODEL	KA18048SS	KA33048SS
AC INPUT
Input Formation	L1 + L2 + L3 + N + PE
Rated Input Voltage	3 × 380VAC / 400VAC (3-Phase + N Line)
Input Voltage Range	155–483VAC ±3V (Normal Mode) 295–483VAC ±3V (UPS Mode)
Frequency	50Hz / 60Hz (Adaptive)
INVERTER OUTPUT
Rated Output Power	18000W	33000W
Output Voltage	380VAC ±5%
Output Frequency	50 / 60Hz ±0.1%
Output Wave	Pure Sine Wave
Transfer Time (Adjustable)	10ms for Computer Equipment 20ms for Household Equipment
Peak Power	36000W	66000W
Overload Ability	Battery Mode: 21s @ 105%–150% Load 11s @ 150%–200% Load 400ms @ >200% Load
GRID-CONNECTED OPERATION
Output Voltage	380VAC
Feed-in Grid Voltage Range	337–437VAC
Feed-in Grid Frequency Range	49–51 ±1Hz / 59–61 ±1Hz
Nominal Output Current	3 × 26.9A	3 × 47.8A
Power Factor Range	>0.99
Maximum Conversion Efficiency (DC/AC)	98%
BATTERY CHARGING
Rated Battery Voltage	48VDC	48VDC
Constant Voltage Charging Voltage (Adjustable)	56.4VDC
Float Charging Voltage (Adjustable)	54VDC
PV INPUT & CHARGING
Charging Mode	3 × MPPT	6 × MPPT
Max PV Input Power	3 × 7500W	6 × 5500W
Total Max PV Input Power	22500W	33000W
MPPT Tracking Range	90–500VDC
Max PV Input Voltage	500VDC
Max PV Input Current	3 × 27A	6 × 18A
Max PV Charge Current	360A	450A
Max AC Charge Current	300A	450A
Max Charge Current	360A	450A
COMMUNICATION
LCD	Can Display Operating Mode / Load / Input / Output
RS232	Baud Rate 2400
Expansion Slot Communication Interface	Lithium Battery BMS Communication Card / WiFi / Dry Contact
ENVIRONMENTAL
Operating Temperature	-10°C to 50°C
Operating Environment Humidity	20%–95% RH (Without Condensation)
Storage Temperature	-15°C to 60°C
Working Altitude	≤1000m without derating; above 1000m rated power will be reduced; maximum altitude 4000m
Noise	≤50dB