We are offering semaphore indicator. Rated insulation voltage (ui) :- ac, dc 250vrated operational voltage (ui) :- dc 240v, 30v, 48v, 100110v, 125v, 200220vvoltage fluctuation range :- + 15% rated operational current (ie) :- 11ma maxinsulation resistance :- 1000m overimpulse withstand voltage :- +4500v, 3times for each pole(1.250s)shock resistance :- 490ms2durability :- over 10000 cyclesdegree of protection :- ip52operating temperature :- -20 to 600 cstorage temperature :- -30 to 750 crelative humidity :- 45 to 85 %altitude :- max 2000m compatible copper conductor :- awg 20 to 14mounting plate thickness :- 1 to 6 mmconfirming to standard :- iec 60947-5-1iec 60947-1