1.Wired Fire Alarm Button BT-01B 2.Rated Voltage:(VDC) 250 3.Contact mode: COM, N/O, N/C 4.Size:86x86x32mm Wired Fire Alarm Button BT-01BHousing:ABS,whiteSize:86*86*32mmRated current:300(mA)Rated Voltage:(VDC) 250Output:NO & NCPackage: Inner packing:1 pcs/boxOuter packing:200PCS/cartonG.W.(kgs):15Meas:(mm):460*380*365