SMA SUNNY BOY STORAGE 3.8-US Instructions D'installation page 35

SMA Solar Technology AG
Load-break switch and cable protection:
☐ Each inverter must be protected with its own overcurrent protective device. Observe the
maximum permissible fuse protection (see Section 10, page 69).
☐ The load-break switch or circuit breaker must be listed (see National Electrical Code
NFPA 70) or Canadian Electrical Code
☐ Loads installed between the inverter and the overcurrent protective device must be fused
separately.
☐ The overcurrent protective device for the AC output circuit is to be provided by others.
6.2.2 Connecting the Inverter to the Utility Grid
Requirements:
☐ All electrical installations must be carried out in accordance with the local standards and the
National Electrical Code
☐ The AC and DC electric circuits are isolated from the enclosure. If required by the National
®
Electrical Code ANSI/NFPA 70 or Canadian Electrical Code
responsible for grounding the system.
☐ The connection requirements of the grid operator must be met.
☐ The grid voltage must be within the permissible range. The exact operating range of the
inverter is specified in the operating parameters.
Procedure:
1. Disconnect the AC miniature circuit breaker and secure against reconnection.
2. Remove the adhesive tape from the enclosure opening for the AC connection.
3. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.
4. Attach the conduit to the conduit fitting.
5. Guide the conductors from the conduit into the inverter. In the process, install the conductors in
the inverter such that they do not come into contact with communication cables, the cable of
the LED assembly or other live conductors. Lay the conductors as a loop if they are too long.
6. To connect the equipment grounding conductor of the utility grid to the equipment grounding
terminal, first strip off the equipment grounding conductor insulation by 18 mm (0.71 in).
7. Insert the screw through the conical spring washer,
the clamping bracket and the washer. Guide the
equipment grounding conductor between the
washer and clamping bracket and tighten the screw
(TX 25) (tightening torque: 6 Nm ± 0.3 Nm
(53.10 in-lb ± 2.65 in-lb)).
Installation Manual
®
CSA C22.1).
®
ANSI/NFPA 70 or the Canadian Electrical Code
6 Electrical Connection
®
®
CSA C22.1.
®
CSA C22.1, the installer is
SBSxx-US-10-IA-xx-14
ANSI/
35