MAIN CHARACTERISTICS range COMPACT range of product NS400..630 product or component type TRIP UNIT range compatibility COMPACT NS400 device application DISTRIBUTION poles description 3P protected poles description 3T neutral position LEFT network type AC network frequency 50 60 HZ trip unit name STR23SV trip unit technology ELECTRONIC trip unit rating 250 A 40 C protection type INSTT SHORT-CIRCUIT PROTECTION COMPLEMETARY CHARACTERISTICS [Ue] rated operational voltage > 525 V AC 5060 HZ long time pick-up adjstment type Ir ADJUSTABLE 48 SETTINGS long time pick-up adjustment range 0.4..1 IN long time delay adjustment type FIXED [tr] long-time delay adjustment range 90..180 S 1.5 X IR short-time pick-up adjustment type Isd ADJUSTABLE 8 SETTING [Isd] short-time pick-up adjustment range 2..10 X IR short-time delay adjustment type FIXED [tsd] short-time delay adjustment range 0.04...0.06 S instantaneous pick-up adjustment type Ii FIXED display type LED