4AC3724-0

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These transformers up to 63 VA provide a safety extra-low voltage for the supply of control current circuits, switching relays or Insta contactors in continuous operation as an alternating voltage power supply for 8В V, 12В V, 16В V, 24В V und 32В V AC.

Higher output voltages will occur in the event of low-load or no-load operation. Siemens safety transformers are protected against short circuit or moderate overload by a PTC resistor. After a short circuit, the primary current must be briefly disconnected from the mains before restarting.