Key switch with dismantling protection, 16 AX 250 V ~, universal off-changeover switch, 2-pole, without claws with screw terminals for rigid and flexible conductors up to 2.5 mm2 Connection terminals according to DIN VDE 0632 (EN 60669) (screw fastening, without fastening claws) for profile half cylinders with approx. 40 mm total length (DIN 18252), e.g. item no.: 28, 28 G1 Dismantling of the key switch cover is only possible when the lock is in the unlocking position.