Specifications

Product Type	Disconnector Switch
Brand	ABB
Series	OT1250
Application	Power distribution panels, Motor control centers, Industrial machines, Backup/changeover systems, Commercial buildings
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)	10 kV
Rated Insulation Voltage (Ui)	1000 V (acc. to IEC/EN 60664-1 )
Rated Operating Voltage	1000 V
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 (690 V, 1 s )
Power Loss	29W/Pole
Rated Frequency	50 - 60 Hz
Transition Type	Open
No. of Poles	3P
Housing Material	Insulating plastic
Mechanical Endurance	6000
Padlock Locking	Yes
Depth	145.5 mm
Height	306 mm
Weight	15.4 kg
Width	334.5 mm
Rated Surrounding Temperature without Derating	+40 °C
Pollution Degree	3
Storage Temperature	–40 °C to +70 °C
Operating Temperature	–40 °C to +60…70 °C
IP Rating	IP65 (enclosed)
Standards and Approvals	IEC 60947-3