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SI 3324 / 4248

Stand-alone inverter for hybrid and backup applications

Data sheet

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Source of supply

The Sunny Island 3324/4248 is the system manager of a stand-alone power sup¬ply. Its service life of over 20 years makes it a future-proof investment. The Sunny Island 3324/4248 also works reliably under extreme ambient conditions, such as high temperatures or excessive dust. The AC coupling developed by SMA provides maximum flexibility in expanding the system and reduces installation efforts and costs. Other AC sources can be easily connected to the AC bus and therefore substan¬tially increase performance an the AC side. This allows batteries and generators to be dimensioned smaller. The integrated smooth startup mode allows all loads to be started safely.

Suitable for systems from 2 kW to 5.4 kW
The only inverter with AC coupling for all energy sources
Fully automatic uninterrupted Operation
Robust and reliable
Excellent overload characteristics
Easy installation
Long battery service life thanks to Optimum battery management system
Compatible with Sunny Family products

Technical data

Technical data

	SI 3324	SI 4248
Input data
Input voltage	230 V (172,5 – 250 V)	230 V (172,5 – 250 V)
Input frequency	50 Hz (40 – 60 Hz)	50 Hz (40 – 60 Hz)
Max. AC input current	56 A (2 – 56 A)	56 A (2 – 56 A)
Max. input power	12,8 kW	12,8 kW
Output data
Rated AC voltage (adjustable)	230 V (202 – 253 V)	230 V (202 – 253 V)
Grid frequency (adjustable)	50 Hz (45 – 55 Hz)	50 Hz (45 – 55 Hz)
Continuous AC output at 25 °C / 45 °C	3300/2300 W	4200/3400 W
Continuous AC output at 25 °C for 30 / 5 / 1 min	4200/4400/5000 W	5400/6200/7000 W
Rated AC current	14,5 A	18 A
Max. current (peak value) for 100 ms	70 A	100 A
Output voltage harmonic distortion factor	< 3 %	< 3 %
Power factor	–1 bis +1	–1 bis +1
Battery data
Battery voltage (range)	24 V (21 – 32 V)	48 V (41 – 63 V)
Max. battery charging current	140 A	100 A
Continuous charging current	104 A	80 A
Battery capacity	100 – 6000 Ah	100 – 6000 Ah
Charge control	lUoU with automatic full charge and equalization charge
Efficiency/power consumption
Max. efficiency (typical)	94,5 %	95 %
Own consumption (no load/standby)	22 W (< 4 W)	22 W (< 4 W)
Protection type acc. to DIN EN 60529	IP30	IP30
Device protection	Short-circuit, overload, overtemperature
Interfaces
	2 LEDs, 4 buttons, 2-line display, 1 relay for load break, 1 relay for diesel generator con trolling, RS485/RS232 electrically separated (optional)
Mechanical data
Width / Height / Depth in mm	390 / 590 / 245	390 / 590 / 245
Weight	39 kg	39 kg
Ambient conditions
Ambient temperature	from -25 °C to +50 °C	from -25 °C to +50 °C
Guarantee (EU)	2 years	2 years
Accessories
Ext. Battery temperature sensor	included	included
Generator management "GenMan	optional	optional