
SMA Technol ogie AG El ectrical Connection 
Installation Guide SMC50A_60A-IEN073320 Page 25
6 Electrical Connection6.1 Required Tools and Materials
Number Tool/material Purpose
2-8 PV plug connectors for the connecting cables of the solar
modules for connection to the Sunny
Mini Central
1multimeter with DC input voltage
range up to at least 600 V
checking the connecting wires of the
solar modules for correct polarity
and ensuring that the maximum input
voltage of the Sunny Mini Central is
not exceeded
1 hexagon (allen) key (5 mm) opening and closing the housing
cover and securing the additional
grounding terminal to the housing, if
required
1cable with external diameter 
between 11 and 25 mm
AC connecting cable
1 stripping pliers stripping the AC cable
1flathead screwdriver, 1 x 6 mm
or
Phillips screwdriver 
PZ2 Pozidrive
using the screw clamps for the AC
connection 
1 terminal clamp (provided in
accessories kit)
additional grounding of the housing
(if necessary)
1hexagon socket screw 
(M6x16, provided in accessories kit)
additional grounding of the housing
(if necessary)
1 washer 
(M6, provided in accessories kit)
additional grounding of the housing
(if necessary)
1grounding cable with a cross-section
between 4 and 10 mm²
additional grounding of the housing
(if necessary)
1 line circuit breaker
(see Page 44 for rating)
power circuit fuse