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8 Description
The EduTrainer
®
Beyond this, the device supplies a safety extra-low voltage of 24 V/2 A.
Schematic circuit diagram
Function block
Input
EMC filter
Breaker
RCD
AC/DC
Fuse
AC output
DC output
Control units
Phase check
Undervoltage detect
Key lock
Emergency stop
24
supply unit serves as a power supply unit with safety devices for single-phase AC devices.
Description
IEC recessed plug per EN 60320, C14, for connecting mains cables with protective earthing contact
EMC filter for the suppression of conducted interference
10 A circuit breaker for overcurrent limiting, B characteristic
Residual current circuit breaker (RCCB) for personal safety (30 mA), DC-sensitive, all-pole switching
24 V switched-mode power supply, short-circuit proof
Resettable 2 A fuse for overload protection
Connector sockets for 230 V AC output voltage laid out as 4 mm safety sockets with LED indicator
Connector sockets for 24 V DC output voltage laid out as 4 mm safety sockets with LED indicator
Electronic unit which continuously monitors connections L, N and PE. The unit can only be switched on if
phase sequence is correct (L, N) and the protective conductor is connected.
Undervoltage trigger for protection against automatic restart
Key switch for enabling output voltages
Emergency-off mushroom pushbutton for all-pole shutdown of the output voltages
Festo Didactic 8068435
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