Vetus Series Parallel Switch for48V Thrus parallel for 48V thruster with 24V battery charging system
VetusSeries Parallel Switch for48V Thrus parallel for 48V thruster with 24V battery charging system
The 160 kgf and 220 kgf bow thrusters are only available with a 24 V DC electric motor. By installing a series/parallel switch in a 12 V main power supply system it is possible that
- The 24 V bow thruster will work using 12 Volt batteries connected in series, so as to obtain the required 24 V voltage.
- For charging, the12 V batteries are automatically connected in parallel and linked to the 12 V charging system.
This series/parallel switch comes complete with pre-assembled auxiliary relays to ensure easy connection between the battery bank and the bow thruster. When the batteries installed for the bow thruster are also used for other 12 V consumers, it should be remembered that the current is supplied via the charging contacts of the series/ parallel switch. These contacts have a continuous duty rating of 100 A, and an intermittent 20% rating of 150 A. As a consequence, never use these batteries as starter batteries and never connect an anchor windlass to them. The series/parallel switch functions completely automatically and therefore the operation of the bow thruster is as usual. The 285 kgf – 48 V dc bow thruster has a series/parallel switch supplied as standard, to permit connection to a 24 V battery bank. This 48 V series/parallel switch is also available separately.