Vetus BPSPE Series / Parallel Switch For 24V Thruster With 12V Charging System.

The 160 kgf bow thruster is only available with a 24 Volt DC electric motor. By installing a series / parellel switch in a 12 Volt main power supply system it is possible that:

• The 24 Volt bow thruster will work using 2 (12 Volt) batteries in series connection, so as to obtain the 24 Volt voltage.
• The batteries can be charged; the 2 (12 Volt) batteries are connected in parallel and linked to the 12 Volt charging system.

This series / parallel switch comes complete with the pre-assembled auxiliary relays to ensure easy connection to the bow thruster. When the batteries installed for the bow thruster, are being used for other 12 Volt consumers as well, it whould be considered that both batteries will supply 12 Volt to the consumers via the charging wires and the charging contacts of the series / parallel switch. The rating for continuous duty of the charging contacts fo the series / parallel switch. The rating for continuous duty of the charging contacts of the series / parallel switch is a maximum 60 A. As a consequence, never use these batteries as starter batteries and never connect an anchor windlass to these batteries. After installation of the series / parallel switch the operational procedure of the bow thruster is a usual