Specifications

Product Type	Automatic Transfer Switch
Brand	ABB
Series	TruONE
Application	Commercial buildings, telecommunications, utilities
Max. Rated Operation AC Voltage (Ue)	480 V
Position of Line Terminals	Supplies on Top - Load on Bottom
Rated Current (In)	250 A
Rated Impulse Withstand Voltage (Uimp)	8 kV
Rated Insulation Voltage (Ui)	1000 V
Rated Operating Voltage	Main Circuit 200...480 V AC
Rated Operation Power at AC-31b (Ie)	(200 … 415 V AC) 250 A
Rated Operation Power at AC-32b (Ie)	(200 … 415 V AC) 250 A
Rated Short Time Withstand Current (Icw)	for 0.3 s 18 kiloampere rms
Power Loss	at Rated Operating Conditions per Pole 9.7 W Total 29.1 W
Rated Current	250 A
Rated Frequency	Main Circuit 50-60 Hz
Special Functions	Open style
Transition Type	Delayed
No. of Poles	4
Rated Operation Power at AC-3b (Ie)	(200 … 415 V AC) 250 A
Material	Stainless Steel
Depth	183 mm
Height	305 mm
Weight	15.57 kg
Width	375 mm
Pollution Degree	3
Operating Temperature	-25 to +70 °C
IP Rating	Front IP20
Standards and Approvals	IEC60947-6-1

ABB OXB250E3S3QTSS Automatic Transfer Switch 3P+N-P 250A IP66