6
Mass Sine Ultra
– Installation Manual Multiple Units
Parallel configuration with MasterAdjust
3.3
DC wiring of parallel units
Note:
Always use the same length positive and negative cables! Be aware that to keep the drawings in this chapter clear and
easy to read, the cable lengths have not been drawn in proportion to each other.
Minimum DC
cable cross
section
Inline fuse
Recommended
battery bank
Indicated cable sizes are for cables from unit to busbar and
shorter than 3m. Cables from busbar to battery bank should
be twice the diameter. When cables are longer than 3m, the
size should be increased to compensate for cable losses.
70 mm
2
250 A
400 Ah
3.4
AC wiring of parallel units
FUSE
FUSE
BUSBAR
BATTERY
SWITCH
© = Circuit Breaker, no RCD!
® = Residual Current Device (RCD) of max. 63A
AC cable cross section 3x 4.0 mm
2
* Neutral to ground bonding depending on local regulations
©
©
©
®
PRIMARY UNIT
REPLICA UNIT
BATTERY BANK
