Power supply for point heating

Points are exposed to extreme weather conditions. In order to ensure they even function in winter, points are equipped with heating systems. The point controller as well as the point heating must be reliably supplied with 24 V DC voltage. This is connected using a redundant supply structure.

So as to maximize operational reliability, 24 V power supply units switched in parallel must be supplied with two independent sources of power. To this end, 230 V with 16.7 Hz is available to the railway, which the transformer generates from the 15 kV overhead line voltage. The other supply used is 230 V with 50 Hz from the energy supplier.

Thanks to the QUINT POWER device series of power supplies, Phoenix Contact provides products that are suitable for use in signal technology. Four modules with 5 to 20 A nominal output current correspond to railway standard En 50155 and are suitable for applications in rail vehicles.

Components that are used in signal technology should not only be resistant to vibration and shock, but also withstand environmental influences. Regardless of whether the components are exposed to extreme heat or cold, damp or dry air – Phoenix Contact provides products for use in signal technology that meet increased requirements and excel, thanks to quality, reliability, and robustness.