Specifications

Product Type Fuse Switch Disconnector	Brand ABB	Series OS400D
Application Isolation and protection in low-voltage distribution systems (industrial / commercial feeders, motor circuits)

Max. Rated Operation AC Voltage (Ue) 690V AC	Position of Line Terminals Top in / Bottom out or reverse	Rated Impulse Withstand Voltage (Uimp) 12kV
Rated Insulation Voltage (Ui) 1000V	Rated Operating Voltage 690V AC	Rated Operation Power at AC-23, 400 V 220kW
Rated Operational Current AC21-A (Ie) 400A	Rated Operational Current AC22-A (Ie) 400A	Rated Operational Current AC23-A (Ie) 400A
Rated Permanent Current at AC-21, 400 V 400A	Rated Short Time Withstand Current (Icw) 14kA (1s)	Rated Uninterrupted Current (Iu) 400A
Power Loss 36W	Rated Current (In) 400A	Rated Frequency 50/60Hz
Fuse Size NH0, NH1, NH2	Mechanical Life ~16,000 operations	No. of Poles 3P
Switches Operating Mechanism 12 (Between the Poles)

Housing Material

Reinforced thermoplastic

Padlockable

Yes (OFF position)

Depth 193mm	Height 230mm	Weight 6.72kg
Width 255mm

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, CE, RoHS

ABB OS400D12P Switch Fuses 3-P 400A For: NH0 1000VAC 400 kW Lug Terminal IP65