Victron Energy — 1.2.2. DC source

Pre-RMA Bench Test Instructions Wiha insulated tool set with screwdrivers, nut drivers, pliers, cutters and so on. Use appropriately sized tools and tighten correctly: Almost all nuts, screws and bolts used in Victron Energy units are metric. Please use the appropriately sized tools. Most connection bolts and screws are made of brass, as such, avoid over-tightening. A brass bolt or screw can easily snap. Use a torque spanner to prevent this. The appropriate torque settings are listed in the product manual. If the torque moment is unknown, use this as a guide: M4 bolts, screws and nuts = 1Nm. M5 bolts, screws and nuts = 3Nm. M6 bolts, screws and nuts = 5.5Nm. M8 bolts, screws and nuts = 12Nm.

Avoid over-tightening cabinet screws. You can use automatic screwdrivers but check that you use a middle torque setting. Crimping tools: Ensure that the electrical cables have terminals suitable for the electrical connections that need to be made. Use the correct crimping tool when crimping cable terminals onto cables. 1.2.2. DC source A DC power supply or a set of batteries able to supply 12V, 24V or 48V. DC Power supply: Use a regulated DC power supply that is adjustable between 0-60V and 0-40A, like the DeltaElektronika SM3300 series. A power supply is the preferred option because it is capable of current limiting, thus eliminating the need for DC fusing. Batteries:

If a power supply is not available, use batteries instead. Use four 12V batteries to create a 12V, 24V or 48V battery bank. But be aware that a battery short circuit should be prevented at all times, so DC fuses need to be used as well. For ease of use, use automatic fuses. Multiple voltage battery bank: Please refer to the image below for an example of a battery bank capable of supplying multiple voltages. To maintain balanced and charged batteries, connect a BlueSmartIP65 charger to each individual battery. Page 3 Introduction