SMA Sunny Central 250U Installation Manual page 4

IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions for the Disconnect Unit for Sunny Central 250U / 500U
/ 500HE-US/CA and Sunny Central CP accessory, that must be followed during installation and
maintenance of the accessory.
The Disconnect Unit for Sunny Central 250U / 500U / 500HE-US/CA and Sunny Central CP are
designed and tested according to international safety requirements, but as with all electrical and
electronic equipment, certain precautions must be observed when installing and/or operating the
Disconnect Unit for Sunny Central 250U / 500U / 500HE-US/CA and Sunny Central CP. To reduce
the risk of personal injury and to ensure the safe installation and operation of the Disconnect Unit for
Sunny Central 250U / 500U / 500HE‑US and Sunny Central CP, you must carefully read and follow
all instructions, cautions and warnings in this installation guide.
Warnings in this document
A warning describes a hazard to equipment or personnel. It calls attention to a procedure or practice,
which, if not correctly performed or adhered to, could result in damage to or destruction of part or all
of the SMA equipment and/or other equipment connected to the SMA equipment or personal injury.
DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate
injury.
NOTICE is used to address practices not related to personal injury.
4 DisconACDC_SCUS-IUS103110
SMA America, LLC
Installation Guide