Контекст такой (руководство по эксплуатации вулканизационной печи):
To ensure the safe operations of the conveying belt, the inlet and outlet of the curing oven are equipped wiht chain plate safety device. If the chains are loosened or disconnected, the chain plate will contact the CONDUCER of the safety device, auto control system will send orders and the frequency-conversion motor will cut the power supply and stop the machine.

Искала сама, вариантов только два - "conduce - способствовать" (но как существительное от него образовать, чтобы оно еще к технике подходило?) или "consumer +producer" - This hybrid role of a consumer/ producer has been described as that of a 'conducer'. The conducer phenomenon is not just limited to online gaming but is reflective of the greater interactivity which digital technologies introduce for people, traditionally referred to as consumers, to experience information and entertainment.

Ни из одного варианта не могу ничего путного придумать. Буду благодарна за помощь.