Electrical Connection - SMA SUNNY BOY 5000-US Installation Manual

Electrical Connection

6 Electrical Connection
DANGER
High voltages on the AC and DC cables
Risk of death or serious injury due to electric shock.
• Only connect the inverters as described in this manual.
• Only electrically qualified persons may work on the inverter.
NOTICE
Ingress of moisture when mounting and installing the Sunny Boy
Potential damage to the Sunny Boy.
• For inserting the conduits into the enclosure and the DC Disconnect, only use UL-
certified rainproof sleeves or waterproof sleeves that fulfill UL 514B.
• Do not open the Sunny Boy in the event of rain or a high level of humidity (> 95 %).
Damage to the seal of the enclosure lid during frost
When opening the Sunny Boy during frost, the seal of the enclosure lid can be damaged.
There may be an ingress of moisture damaging the Sunny Boy.
• Do not open the Sunny Boy when the outdoor temperature is below 23 °F ( − 5 °C).
Electrostatic discharges through touching component parts
Potential damage to the Sunny Boy.
• Ground yourself before touching any electronic component.
Ground faults, unreliable and highly resistive connections due to Wire Nuts
Potential damage to or failure of the Sunny Boy.
• Do not use Wire Nuts
Electrical Installations
All electrical installations must be carried out according to the applicable electrical
standards on site and the National Electrical Code ANSI/NFPA 70. Installations in
Canada must be carried out according to the applicable Canadian standards.
Before connecting the Sunny Boy to the power distribution grid, contact your local electric
utility company. This connection must be made only by qualified personnel.
34 SB50US-80US-IA-en-36
®
.
SMA America, LLC
®
Installation Manual