System Shutdown (Ssd) Switch Wiring - enphase IQ System Controller 3 INT Quick Install Manual

System Shutdown (SSD)
switch wiring
WARNING! Risk of equipment damage. Do not wire the
IQ System Controller 3 INT when it is energized.
Any system using the IQ System Controller 3 INT requires a system
shutdown (SSD) switch. The SSD switch when used in conjunction
with PV and battery breakers disconnect all PV panels and battery
from the home to ensure the safety of maintenance technicians.
When the system shutdown sequence outlined in this section is
followed, the Enphase Energy System will be shutdown and the
home is connected to the grid.
The SSD switch is a double pole single throw lockable switch.
The SSD switch should be placed in a readily accessible location
outdoor and wired to IQ System Controller 3 INT. The maximum
distance between the SSD switch and IQ System Controller is
60 meters.
The SSD port in IQ System Controller 3 INT uses a detachable
header that must be wired to the SSD switch. By default,
the header is shorted. You must remove the wires shorting the
header and connect the wires from the SSD switch.
Follow the instructions below while SSD switch installation:
• Open the front face of the SSD enclosure by loosening the
four screws on the front face.
• Create wiring conduit in the top/bottom portion of the
enclosure. There are knock outs provided for this.
• Use wires of cross section 0.5-1.5 sq. mm. to connect SSD
switch to header.
• Draw the wires out through the conduit which has been
created in the enclosure.
IOB
Cable colours are indicative
IQ System Controller 3 INT Quick Install Guide
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SSD header
Torque: 0.2 N m
Strip length: 8 mm
Use 1.2 N m torque to connect wires to SSD switch.
Use approprialtely sized ferrule to terminate the wire in the
header.
Use 0.2 N m torque to connect the wire to header.
Wire the terminal 1 and terminal 5 of SSD switch to pin 1 and 2 of
the header respectively.
Wire the terminal 6 and terminal 2 of SSD switch to pin 3 and 4
of the header respectively.
Terminal 3 and 4 of the SSD switch are not to be used.
Secure the switch to the rear plate of the enclosure using
push-fit latches.
There are 4 mounting points on the back plate of the enclosure
to mount the SSD switch enclosure.
The type of screw is to be determined by installer based on the
SSD switch mounting location.
Use 1.0 N m torque to secure the front cover to the back plate
of the enclosure.
Ensure that the switch is in "ON" position.
Plug the header on to the IOB board.
Shutdown
(SSD) switch
1 3 5
2 4 6
Torque: 1.2 N m
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