Closed circuit principle, for interlocking the switch movement. When the coil circuit is dead, A-types can not be switched to ON-position and L-types to ON- or OFF-position. Aux. contacts are mountable on the top of the mechanism. OETLZT 206/210 Un/R: 110VAC 50 Hz/246ohm , 110VAC 60Hz/229ohm , 208VAC 60Hz/820ohm, 230VAC 50Hz/1200ohm, 24VDC/89ohm, 48VDC/386ohm, 60VDC/552ohm, 110VDC/1860ohm, U=0.7...1.1*Un , PDC=6.5 W, PAC = 30V. Including 2 pcs locking parts for locking to ON-position or to ON and OFF-positions.