There are remote control circuits for safety control equipment. Some of them can introduce a direct fire or life hazard if the equipment should fail. Such as on elevator recall system. According to the NEC what is the remote control, signaling, and power limited classification of this circuit?

There are remote control circuits for safety control equipment. Some of them can introduce a direct fire or life hazard if the equipment should fail. Such as on elevator recall system. According to the NEC what is the remote control, signaling, and power limited classification of this circuit?