Enpower smart switch installation and operation
© 2020 Enphase Energy Inc. All rights reserved.
141-00046-01
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M. Check that all breakers are properly seated.
N. Torque the breaker connections as listed in the following and in the conductor table on the unit.
O. Purchase and install an Eaton type BR circuit breaker hold-down screw kit (model BRHDK125) to
secure only the Encharge and generator (reserved for future use¹) double-pole circuit breaker(s).
Refer to
https://www.homedepot.com/p/Eaton-Type-BR-Hold-Down-Bolting-Screw-Kit-
for installation information and specifications.
Connections
Wire size (AWG)
Torque (N-m / lb-in)
Main lugs,
Backup
load lugs
(use a 1/4” hex drive)
Cu/AL: 300 KCMIL - 1
31.1 / 275
CSR breakers
Cu/AL: 300 KCMIL - 2
28.2 / 250
BR breakers (wire provided)
6
3.1 / 27
AC Combiner lugs,
Encharge lugs, and
Generator (reserved for future use¹) lugs
14 - 10
8
4 - 6
2 - 3
2.8 / 25
3.4 / 30
3.9 / 35
4.5 / 40
Neutral - large lugs
(use a 3/8” hex drive)
Cu/AL: 300 KCMIL - 6
31.1 / 275
Neutral and ground bars
Large holes (5/16-24 UNF)
1/0 - 3
4 - 6
8
10 -14
5.6 / 50
5.1 / 45
4.5 / 40
4.0 / 35
Small holes (10-32 UNF)
6 - 8
10 -14
2.8 / 25
1.7 / 15
Required practices when securing wires within the lugs:
•
For the
main/load lugs, use a 1/4” hex drive.
•
For the neutral lugs, use a 3/8” hex drive.
Required practices when torquing connections:
•
Always follow NEC 2017 110.4 (D) dictates.
•
You must use a calibrated torque tool to achieve the indicated torque values.
•
Use tamper-proof torque mark/paint after torquing connections.
Main/load lug
Neutral lug
