Specification

Volume 15—Solar Inverters and Electrical Balance of System CA08100018E—April 2014 eaton.com/solar V15-T1-5
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1.2
Solar Power Center Loadcenters and Meter Breakers
Application Description
How to Size a Solar-Ready
Loadcenter or a Meter Breaker
for your Solar Application
The National Electrical Code
(2008) Section 690.64(B)(2)/
(2011) Section 705.12(D)(2)
states: “The sum of the
ampere ratings of overcurrent
devices in circuits supplying
power to a busbar or
conductor shall not exceed
120 percent of the rating of
the busbar or conductor.”
For example: A 200A main
breaker loadcenter + a
backfed 70A PV breaker =
270A = 120% of the 225A
busbar rating. In 2014, 120%
was extended to 125% of the
conductor rating.
Note: Check with local utility for
exact requirements.
Features and Benefits
Solar Power Center
●
Up to 225A rated copper
bussing maximizes solar
source up to 70A for
standard units
●
100A, 125A and 200A main
breakers available factory
installed, which provides
additional flexibility in
PV sizing
●
Main breaker and PV
backfed main are located
at opposite ends of the
distribution panel
●
Single-phase, three-wire
120/240 Vac
●
Overhead and underground
feed applications
●
Padlocking provisions
●
Surface and flush designs
available
●
Top or bottom exit of
load wiring
●
Limited lifetime warranty
for Type CH and 10-year
warranty for Type BR
Loadcenters
●
Type CH features plug-on
neutral loadcenters and
breakers that enable the
contractor to connect the
breaker directly to the
neutral bar, eliminating the
need for wiring a pigtail
●
Type CH features unique
stab design, which
provides a tight connection
to the bus
●
Top or bottom feed
●
Straight-in wiring saves
labor and material
●
Only one panel for either
application—no
modifications necessary
●
Extra 1.50-inch (38.1 mm)
knockout for bundling
enables easier installation
●
Drywall marking on
enclosure indicates proper
mounting depth for flush
applications
●
Unique sandalwood finish
is aesthetically appealing
with scratch-resistant
powder coating
●
Silver flash plated copper
bus provides superior
conductivity
Meter Breakers
●
Meter socket and
distribution section are
located in one enclosure,
which provides labor and
material savings
●
EUSERC / West Coast and
Non-EUSERC designs
●
Ring, ringless and lever
bypass designs
●
7-inch-deep designs
available, which is ideal for
stucco homes
●
Endwall knockouts are
easily accessible for future
wiring without damaging
stucco
Standards and Certifications
●
Complies with NEC (2008)
Section 690.64(B) / (2011)
Section 705.12(D), which
identifies the acceptable
installation and marking
requirements for utility
interactive solar inverters
●
UL Listed
●
Non-EUSERC
●
EUSERC/West Coast
Panel Main Breaker
Ampere Rating
Standard Bus
Ampere Rating
Maximum Total Ampere Rating of
all PV Backfed Mains
Maximum Ampere Rating of
Panel Mains + PV Mains
100 100 20 120
100 125 50 150
125 125 25 150
200 200 40 240
200 225 70 270
225 225 45 270
400 400 80 480