16
IQ System Controller 2 Quick Install Guide
The IQ System Controller 2 comes pre-installed with a 40 A breaker
for the neutral forming transformer (NFT). When a generator is not
installed, the NFT breaker should not be removed.
Breakers for IQ8 Systems
without generator
NFT breaker
Pre-installed in factory,
not to be disturbed
IQ Gateway breaker
Wire IQ Gateway in IQ Combiner
to factory-installed breaker in
IQ System Controller 2
Solar branch circuit
breakers
Use hold-down kits
(X-IQ-NA-HD-125A)
with included 20 A
breakers. Each branch
circuit requires a
separate breaker.
Hold-down kit
(X-IQ-NA-HD-125A)
Wiring to power IQ Gateway
Solar breaker
Use hold-down kit
(EP200G-NA-HD-200A)
with included breakers
(20 A/40 A/60 A) or a
correctly sized breaker
Pre-wired red and
black wires
Connect to storage and
solar breakers
Storage breaker
Use hold-down kit
(EP200G-NA-HD-200A)
with included breakers
(20 A/40 A/60 A) or a
correctly sized breaker
ENPHASE BREAKER PART EATON BREAKER PART TORQUE
BRK-20A-2P-240V-B BR220B
27 lb.in
BRK-40A-2P-240V-B BR240B
BRK-60A-2P-240V BR260
BRK-80A-2P-240V BR280
Section B - Mounting the breakers
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