If you don't know what is 'Digital DC Distribution' or 'Distributed Power' and are a fairly new reader of this blog, digital DC distribution is a newer means of controlling DC power over the traditional circuit breaker panel. Instead of mechanical breakers, circuits are controlled via solid state relays, which in turn are controlled by a computer network. These relays have electronics that monitor current and can be programmed to "trip" at specific current loads, acting like a circuit breaker. Blocks of these relays are placed strategically throughout the boat, (near the items they control requiring much less wire). Instead of a main breaker panel, there are many kinds of user interface devices (touch screens, soft switches, or your own computer), that connect to the network to control the circuits.
Click here to browse all of my posts on the topic. Click here for Mastervolt's page on their system.
Installation of the Mastervolt DC distribution system has begun. Despite having positioned components in CAD, in pursuit of the ideal layout, having the actual devices in hand has caused a rethink (of course!). I ultimately ended up staring at the bulkhead for about an hour to find the best layout and wire runs given the space. Oh well.
This is what I have so far...
|The main DC distribution 'manifold'|
|'Mastershunt' (shown without cover) provides main circuit protection and current monitoring|
|DCD-500 (shown without cover or fuses) provides high current distribution and protection of up to five circuits.|
- port-forward DC leg
- port-aft (aft cabin) DC leg
- starboard-forward DC leg
- 24VDC battery charger
- 24VDC-12VDC converter
- engine room 24VDC loads
- AC inverter charger
- DC generator
- solar panel charger
- wind generator