Electric, electromechanical and electronic switchgear, in particular safety switches, actuators for safety switches, safety guard locking devices for use in machine safety guarding, manual electric switches, programmed switching devices in the nature of time relays, delay timers, safety control modules for emergency stop applications, electronic display interfaces, relays; Surveying, measuring, signaling, checking and supervision apparatus and instruments for use in machine safety guarding, namely, sensors for monitoring electronic, electromechanical, optoelectronic and magnetic signals, power continuity test apparatus for use with electrical circuits, safety light curtains, laser scanners and tactile safety monitoring devices, namely, safety edges, safety mats and alarms that utilize pressure sensitive pads to monitor movement of persons; Electronic and electromechanical monitoring and enabling switches, cam switches, control cams for use in machine safety guarding, optoelectronic apparatus, namely, safety monitoring modules; Monitoring sensors for guard door monitoring, safety-monitoring modules and monitoring position and speed of machinery; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, adapters, electricity conduits, input expanders and output expanders; Non-contact, electric, magnetic and electromechanical locks and guard locking devices; Safety circuits; Area and surface protection components as entry, danger point or danger zone guards, namely, guard door monitors, door handle actuators, safety control modules, safety light curtains, safety light beams, safety light grids, light grid sensors and components for tactile safety devices in the form of alarms that utilize pressure sensitive pads and mats to monitor movement of persons; Standstill monitoring devices which detect and monitor a standstill of machinery; Evaluation circuits for sensor signals for use in machine safety guarding; Identification devices, namely, devices with radio-frequency identification (RFID) for use in machine safety guarding and evaluation devices for identifying an electrical or electronic component or its status; Controls, in particular electronic, memory-programmable or permanent-programmable controls; Data buses and components therefor, namely, universal serial bus (USB) hardware and safety fields bus systems hardware; Data bus controls, namely, programming devices for controlling safety data buses and devices for monitoring information passed between pieces of equipment on a safety data bus system; Electrical or electronic control switches for the input of operation mode