The ATS1A1STOP has a heavy duty tongue and head where the tongue allows a +/- 12mm misalignment. The tongue and head unit can rotate in 90° increments. The ATS1A1STOP also features both a Safety Key (S1) and Access Key Adaptor (A1) to ensures that the machine / process cannot be restarted without returning the keys, preventing personnel being accidentally locked in a guarded area. The Access Key adapotor ensures authorised access only. The product is ideally designed for machines without run down cycles where quick and frequent access to equipment is required, via either hinged or sliding doors.

When the machinery is in operation the tongue is engaged and the power is on. If accesss is required, the door is simply opened releasing the tongue from the unit,giving positively guided, forced disconnection of the safety switch contacts.