General
Rated permanent current Iu	250 A
Rated voltage	690
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz	50 kA
Adjustment range short-term delayed short-circuit release	2500
Type of electrical connection of main circuit	Screw connection
Device construction	Built-in device fixed built-in technique
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
Number of poles	3
Position of connection for main current circuit	Front side
Type of control element	Toggle
Degree of protection (IP)	IP40
Power loss	45 W
Integrated earth fault protection
Suitable for DIN rail (top hat rail) mounting
DIN rail (top hat rail) mounting optional
With switched-off indicator
Complete device with protection unit
Motor drive integrated
Motor drive optional
With integrated under voltage release

Circuit breaker h3+ P250 LSnI 3P3D 250A 50kA FTC. The molded case circuit breaker in accordance with DIN EN 60947-2 protects the electrical system and networks against overload and short circuit. The tripping curve of the electronic trip can be set using a rotary latching switch. The tripping for the overload current (Ir) and the short-time delayed short-circuit current (Isd) can be set separately. The instantaneous tripping for the short-circuit current Ii is fixed. A standby LED lights up green when the trip is ready for operation and flashes orange when an internal error is detected in the trip. Another LED starts flashing red when I = 105% Ir and lights up red continuously when I 112% Ir. The three different operating states can be recognized by the position of the knob (ON = top, OFF = bottom, tripped = middle position). A device for locking the switching state in the ON or OFF position is integrated and can be used with a standard padlock without additional accessories. The trigger mechanism can be tested and the main contacts opened using a trigger button. A hinged cover with a captive quick-release screw allows access to the installation space for optional auxiliary contacts and other triggers. Integrated accessories can be recognized and identified via a viewing window without opening the hinged cover. The set trigger curve can be tested and documented using an interface for a diagnostic and configuration tool.