I am simulating the circuit shown in the figure below. In the simulation, switch S1 is repeatedly opened and closed at irregular intervals in short succession. The relay, K1 has a flyback diode attached for emf suppression from the relay coils. When R1 = 0, probe 1 measures massive currents up to 30A, despite there being a DC resistance of approximately 300 Ohm (in the relay coil). When R1 = 1 Ohm, the maximum current at the probe is approximately 15mA.

My question is, how is a 30A current possible through the probe if there is a large series DC resistance present? Is it due to some phenomena with the flyback diode, or is it maybe a bug with multisim? Why does the 1 Ohm resistor make such a large difference?

[![Circuit Multisim Model](https://i.stack.imgur.com/hEMKW.png)](https://i.stack.imgur.com/hEMKW.png)