Specifications

Product Type	Changeover Switch
Brand	ABB
Series	OT1250
Application	Commercial buildings, Industrial plants, Data centers
Max. Rated Operation AC Voltage (Ue)	1000 V AC
Position of Line Terminals	Top In - Bottom Out, Bottom In - Top Out
Rated Current (In)	1250 A
Rated Impulse Withstand Voltage (Uimp)	12 kV
Rated Insulation Voltage (Ui)	1000 V
Rated Operating Voltage	415 V
Rated Operation Power at AC-23, 400 V	710 kW
Rated Operation Power at AC-31b (Ie)	1250 A
Rated Operational Current AC21-A (Ie)	1250 A
Rated Operational Current AC22-A (Ie)	1250 A
Rated Operational Current AC23-A (Ie)	1250 A
Rated Permanent Current (Iu)	1250 A
Rated Permanent Current at AC-21, 400 V	1250 A
Rated Short Time Withstand Current (Icw)	50 kA
Power Loss	29 W/Pole
Rated Frequency	50 - 60 Hz
Transition Type	Open
No. of Poles	4P
Padlock Locking	Padlockable in O-Position
Depth	309 mm
Height	306 mm
Weight	60 kg
Width	480 mm
Rated Surrounding Temperature without Derating	+40°C
Pollution Degree	3
Storage Temperature	-40°C to +70°C
Operating Temperature	-25°C to +55°C
IP Rating	IP20
Standards and Approvals	IEC 60947-3, IEC 60947-1, CSA, CE, RoHS, REACH