SMA Solar Technology AG
4. Attach the conduit to the conduit fitting.
5. Guide the conductors from the conduit into the inverter.
6. Strip off the conductor insulation by max. 9 mm (0.35 in).
7. Connect the conductors to the 3-pole terminal block
according to the circuit diagram, depending on the
operating mode (see Section 6.5.3, page 42).
Ensure that the conductors are plugged completely
into the terminal points (round openings) up to their
insulation.
8. Stick the terminal block into the MFR slot on the
communication assembly in the inverter.
9. Ensure that the terminal block is securely in place.
10. Ensure that all conductors are correctly connected.
11. Ensure that the conductors sit securely in the terminal points. Tip: To release the conductors
from the terminal block, open the terminal points using a suitable tool.
6.6
Connecting the switch and outlet for secure power
supply operation
Neutral and grounding conductor of output for secure power supply
permanently connected
The inverter's output for secure power supply includes a permanent connection between
neutral and grounding conductor, which cannot be disconnected.
Do not connect any loads that require an uninterrupted energy supply
The secure power supply operation and the battery-backup operation may not be used for
loads that require a uninterrupted energy supply. The energy that is available during the
secure power supply operation or battery-backup operation depends on the battery capacity
available and the state of charge of the battery (SOC).
• Do not connect loads if they are dependent on an uninterrupted energy supply for
reliable operation.
Requirements:
☐ The technical requirements for connecting the switch and outlet for secure power supply
operation must be met(see Section 10, page 69).
☐ All electrical installations must be carried out in accordance with the local standards and the
National Electrical Code
Installation Manual
®
ANSI/NFPA 70 or the Canadian Electrical Code
6 Electrical Connection
FCC ID: SVF-KP20
IC: 9440A-KP20
DISPLAY
A
B
D-IN
SPS
Max. 30V DC
BAT
MFR
USB
B A T
®
CSA C22.1.
SBSxx-US-10-IA-xx-14
C
3 0 V D
M a x .
U S B
M F R
43