Hager HNT251GR

Circuit breaker h3+ P250 LSnI 4P4D N0-50-100% 250A 40kA FTC. The compact circuit breaker complies with DIN EN 60947-2 and protects electrical installations and networks from overload and short circuits. The tripping curve of the electronic release can be adjusted via a rotary-push switch. The triggers for the overload current (Ir) and the short-time delayed short-circuit current (Isd) can be set separately. The instantaneous trip for the short-circuit current Ii is fixed. The neutral conductor protection can be set to OFF, 50% of Ir and Isd, or 100% of Ir and Isd using a controller. The time delay remains as with tr and tsd. A standby LED lights up green when the trigger is operational and blinks orange when an internal fault in the trigger is detected. Another LED starts blinking red when I = 105% Ir and lights up continuously red when I > 112% Ir. The position of the knob indicates the three different operating states (ON = up, OFF = down, tripped = middle position). A device for locking the switch state in the ON or OFF position is integrated and can be used with a standard padlock without additional accessories. A test button allows the tripping mechanism to be tested and the main contacts to be opened. A hinged cover with a non-removable quick screw provides access to the installation space for optional auxiliary contacts and other triggers. Integrated accessories can be seen and identified through a viewing window without opening the hinged cover. An interface for a diagnostic and configuration tool allows the set tripping curve to be tested and documented.