2 independent monostable relays, each with 2 changeover contacts. The relays do not have an end stop but can still be controlled with continuous current. The activation occurs through positive switching pulses or continuous current, alternating voltage, or digital current. Thanks to the internal electronics, the relay remains silent even when connected to digital circuits or pulsed signals. It is designed for train control with the wing signal 4702 and its three terms, as well as for heart piece polarization in the switch and turnout decoder 5280. Current consumption is approximately 2 x 14 mA at 16 V. Contact load capacity per changeover contact: 2 A.