Enphase Ensemble Technology System Planning Tech Brief

Planning an Ensemble Technology System – North America
8 © 2019 Enphase Energy Inc. All rights reserved. December 17, 2019
Ensemble Products
Enpower Smart Switch
The Enphase Enpower smart switch consolidates interconnection equipment into a single
enclosure and streamlines grid-independent capabilities of PV and storage distributed
energy resources (DER) installations by providing a consistent, prewired solution for
residential applications. Enpower is a service entrance rated microgrid interconnect device
that includes a neutral-forming transformer for single-phase backup operation and an Eaton
BR bus bar assembly.
• Centered mounting brackets support single stud mounting
• Supports conduit entry from the lower sides, back, or bottom
• Up to 200A rating
• Includes neutral-forming transformer for single phase backup operation
• Includes lugs and circuits for interconnection of line-side power, PV combiner,
Encharge storage system, backup load panel, and generator (to be activated in
future)
Mechanical Data
Enpower
Dimensions (WxHxD):
19.7 in x 36 in x 9.7 in
(50 cm x 91.6 cm x 24.6 cm)
Weight:
37.2 kg (82 lbs)
Ambient temperature range:
-40º C to +50º C (-40º to 122º F)
Model Number
Description
Shipment Contents
EP200G101-
M240US00
Enphase Enpower smart switch with 200A capacity, neutral-
forming transformer providing microgrid interconnect device
(MID) functionality.
One box of one unit
Main and load breakers
For wire sizes accepted by each terminal, see the Enpower smart switch data sheet. Enpower supports optional
circuit breakers on both the input (line-side) and output (load side) of the MID relay. Enpower can be configured with
the following main circuit breakers to support different field requirements in compliance with NEC 705.12. Pay special
attention to conductor ampacity rating when selecting the main breakers for the line-side and load side. Breakers are
not included in the Enpower smart switch and must be ordered separately.
Model Number
Description
Shipment Contents
BRK-200A-2P-240V
Main breaker, 2-pole, 200A, 25kAIC, CSR2200N for Enpower
One box of one unit
BRK-175A-2P-240V
Main breaker, 2-pole, 175A, 25kAIC, CSR2175N for Enpower
One box of one unit
BRK-150A-2P-240V
Main breaker, 2-pole, 150A, 25kAIC, CSR2150N for Enpower
One box of one unit
BRK-125A-2P-240V
Main breaker, 2-pole, 125A, 25kAIC, CSR2125N for Enpower
One box of one unit
BRK-100A-2P-240V
Main breaker, 2-pole, 100A, 25kAIC, CSR2100N for Enpower
One box of one unit
Main breaker and load breaker installed in the Enpower smart switch
When installed on a new or existing electrical service as the service equipment disconnecting means and over
current protection device, Enpower smart switch typically needs a circuit breaker installed for a main breaker and
another breaker for the load breaker. The main and load breakers should be equivalent rating of the service for whole
home (main panel) backup configurations. For example, a 200 A service would typically have two 200 A rated Eaton
CSR2200N (BRK-200A-2P-240V) installed.
When Enpower is used as the service disconnect with a main bonding jumper installed, all equipment grounding
conductors and neutrals on downstream feeders and panel boards must be separated.