enphase IQ System Controller 3M - Breakers for NFT and IQ Gateway

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IQ System Controller 3M quick install guide
The IQ System Controller 3M comes pre-installed with a quad
breaker (Siemens or Eaton) for the neutral forming transformer
(NFT) and IQ Gateway.
Section B - Mounting the breakers
Breaker for NFT and IQ Gateway
ENPHASE BREAKER PART EATON BREAKER PART TORQUE
BRK-20A-2P-240V BR220
27 lb.in
BRK-40A-2P-240V BR240
BRK-60A-2P-240V BR260
BRK-80A-2P-240V BR280
BRK-20A40A-4P-240V BQC220240
MANUFACTURER MODEL SERIES CURRENT RATING
GE/ABB THQL21xx
20/40/60/80 A
Siemens Q2xx
20/40/60/80 A
Siemens (quad breaker) Q24020CT2
20/40 A
NFT pre-wired to 40 A terminal of the quad breaker.
Connect IQ Gateway L1 and L2 to the 20 A L1 and L2
terminals of the quad breaker, respectively.
L1 - NFT
L1 - IQ Gateway
L2 - IQ Gateway
L2 - NFT
Siemens breaker
NOTE: The cable used to connect IQ Gateway power
terminals to the quad breaker must adhere to local
electrical codes.
The following alternate breakers are approved for use in
the Eaton load center:
Hold-down kit screw
Solar or storage breaker
Use the factory-installed hold-
down kit, along with a correctly
sized breaker
Hold-down kit arm
Solar breaker
Use the factory-installed
hold-down kit along with a
correctly sized breaker
Storage breaker
Use the factory-installed
hold-down kit along with a
correctly sized breaker
Pre-wired red and black wires
Connect to storage and solar
breakers
L1 - IQ Gateway
L1 - NFT
L2 - NFT
L2 - IQ Gateway
Eaton breaker
WARNING: IQ System Controller with
8 AWG wire on NFT L1 & L2 can be
used with either the Eaton or Siemens
quad breaker.
IQ System Controller with 6 AWG
wires on NFT L2 can be used with only
the Eaton quad breaker.