General
Number of switches	1
Max. rated operation voltage Ue AC	1000
Rated operating voltage	1000
Rated permanent current Iu	250
Rated permanent current at AC-23, 400 V	250
Rated permanent current at AC-21, 400 V	250
Rated short-time withstand current lcw	8
Rated operation power at AC-23, 400 V	145
Switching power at 400 V	145
Conditioned rated short-circuit current Iq	100
Number of poles	4
Number of auxiliary contacts as normally closed contact	0
Number of auxiliary contacts as normally open contact	0
Number of auxiliary contacts as change-over contact	0
Device construction	Complete device in housing
Colour control element	Black
Type of electrical connection of main circuit	Bolt connection
Degree of protection (IP), front side	IP00
Degree of protection (NEMA)	Other
Colour housing	Grey
Depth	82.5
Height	150
Material housing	Plastic
Width	180.5
Version as main switch
Version as maintenance-/service switch
Version as safety switch
Version as emergency stop installation
Version as reversing switch
Motor drive optional
Motor drive integrated
Voltage release optional
Suitable for front mounting 4-hole
Suitable for front mounting centre
Suitable for distribution board installation
Interlockable
Floor mounting

The manually operated switch disconnectors of the OT series are unique in their variety and flexibility.
The OT series switches currents from 16 A to 4000 A and at voltages of up to 1000 V AC.
Despite their high performance, the switches are very easy to operate and take up little space.
The freely selectable installation position enables a high level of flexibility and efficiency in planning.
In addition, the OT switches can be used as main switches in the main or sub-distribution board. Of course, the OT series also has IEC and UL approvals, which make this series even more attractive. ABB also offers you a wide range of accessories for these switches, such as extension shafts, handles, auxiliary switches and terminal covers. This means that the OT switch disconnectors can also be used in the most demanding applications.