SMA DU-SC-US - Manual (Page 25)

SMA America, LLC Preparing the Disconnect Unit for Installation
Unpacking DISU_SCUS-AP-eng-IUS110911 25
8 Preparing the Disconnect Unit for Installation
8.1 Opening the Disconnect Unit
1. Turn all switches of the Disconnect Unit to the right
into the "On" position. Push or pull the switches hard
to move them.
2. Release the three screws on the handles on the left-
hand side of the front plate.
Note the grounding strap on the front plate
At the bottom left corner of the front plate, a grounding strap is fitted and connected to the
Disconnect Unit. Do not damage the grounding strap when opening the Disconnect Unit.
$"65*0/
Danger of crushing caused by heavy front plate!
When removing the front plate, there is a danger of crushing between the Disconnect Unit and the
front plate.
• Note the weight of the front plate of 110 lbs. (50 kg).
• Move the front plate of the Disconnect Unit with at least two persons.
• Ensure that one person is holding the front plate of the enclosure at all times when the other
person is working on it.
• Wear personal protective equipment.
Off
On