PVGard solar circuit breakers
Photovoltaic (PV) systems

600 Vdc Per-Pole and1000 Vdc Poles-in-Series

Convert the energy of the sun
into electrical power

Photovoltaic (PV) systems convert the energyof the sun into electrical power that is fed
directly into the electric grid. Within the balanceof system (BOS), direct current (DC) circuit
breakers protect the wiring connected fromthe PV modules to the combiner or the inverter,
while also functioning as a disconnect.

Eaton is a global leader incircuit protection and brings
this expertise to bear in thephotovoltaic market. PVGard™
solar circuit breakers arepart of a product family thatcombines a disconnect withovercurrent protection in one
device to protect photovoltaicsystems. PVGard breakers canreplace fuses and disconnects
in combiner box and inverter
applications—saving space,streamlining purchasing andreceiving, and reducing spareparts requirements.

Inverter

Combiner
Box

There are two PVGard lineups
to choose from—the industryexclusive, 600 Vdc Per-Polebreakers and switches forresidential and light commercial
applications, and the 1000 Vdc
Poles-in-Series breakers andswitches for commercial andutility-scale solar systems.

Customer
Facility LoadAC
Equipment

UtilityMeter

GridElectricity

PVGard 600 Vdc Per-Pole lineupThis breakthrough circuit breaker from Eaton willsave significant space, time and cost. As a single
circuit Per-Pole device, it allows space savings of up
to 66% when compared to traditional poles-in-series
disconnects, switches and breakers. In addition, it
eliminates the need for jumpers for poles-in-seriesconnection—saving on installation time and labor aswell as inventory.

Features• Meets and exceeds thestandards of UL 489B for
photovoltaic molded-casecircuit breakers and moldedcase switches• Designed to meet higher
voltage and lower fault current
levels of solar systems• 50 ºC calibrated• Tested to extreme ambientconditions from –40 to +90 ºC• Offers both 100% and 80%
rated breakers• Can handle bidirectional
current flow
• Can be applied ingrounded, ungroundedor bipolar systems• Full complement of accessories for status, signaling,lockout/tagout and remote
on/off operation• Ability to open on signal
from DC arc or ground
fault detector• Wide range of current ratings
increases options for matching
incoming strings• Eliminates fuse stocking
costs and matching issues

2EATON PVGard solar circuit breakers

PVGard 1000 Vdc Poles-in-Series lineupThis 1000 Vdc Poles-in-Series lineup provides reliable andsafe disconnect means and overcurrent protection in one
combined solution for commercial and utility-scale PVsystems. This solution does not require certain jumpers forpoles in series connection to be a UL 489B listed device,providing reliability and flexibility in design/installation.
If needed, cost-effective, UL listed Eaton jumpers can be
added separately.

Available accessories
Designed specifically for highand low-temperature demandsof PV installations, PVGard circuit
breakers undergo extreme
ambient cycling tests and carrya robust operating temperature
range. Trip units calibrate at 50 ºC
ambient temperatures, ensuringcontinuous operation in higher
temperature environments
typical to solar.
Rigorous third-party testing
includes limited and standard
fault current tests, electricaland mechanical endurance,
di-electric voltage withstandand temperature tests.
Eaton’s PVGard products
are standalone devices thatdo not require jumpers to be
UL 489B listed devices.
PVGard breakers are available
with a full complement ofaccessories to provide string
status, enable remote trip andon/off operation, and can becustomized to site requirements.
PVGard breakers conformto the UL 489B standard
for photovoltaic molded-casecircuit breakers and switches.

•Auxiliary switch•

Shunt trip•

Electrical operator•

Alarm lockout•

Undervoltage release•

Terminals•

Lock-off devices•

End cap kits•

Rotary handle mechanisms•

Flexible shaft handle
mechanisms

Optional modifications•Freeze testingPVGard 600 Vdc photovoltaic circuit breakers
Frame
Description

JG PVSKD PVS

Ratings
Number of poles
Ampere range
Maximum voltage rating
Interrupting capacity at 600 Vdc
Design ambient temperature
Third-party certification
Suitable for reverse-feed applications

390–250 A
600 Vdc
1.2 kA
50 °C
UL 489B
Yes

3100–400 A
600 Vdc
3 kA
50 °C
UL 489B
Yes

TA250FJ: (1) #8–350 kcmil
3TA251FJK1: (2) 2/0–(2) 4/0 A
3TA251FJK2: (2) 2/0–(2) 4/0 B

TA300K: (1) #3–350 kcmil
TA350K: (1) 250–500 kcmil
TA403K: (2) 1/0–400 kcmil
3TA402K: (1) 500–750 kcmil C
T300K: (1) #3–350 kcmil

Terminations
Al/Cu wire

Cu wireT250FJ: (1) #4–350 kcmil

A Three terminals with terminal shield as a kit.
B Three terminals with two interphase barriers as a kit.
C Not UL 489B recognized size for maximum of 400 A breaker.

Dimensions in inches (mm)4.31(109.6)

5.49(139.4)

7.00(177.8)ON

10.13(257.2)4.13(104.9)

3.44(87.4)

Front View

Side View

OFFJG PVS breakerFront View

Side View

KD PVS breaker

EATON PVGard solar circuit breakers﻿﻿

3PVGard 1000 Vdc solar photovoltaic circuit breakers
FrameDescription

FD PV

KD PV

LG PV

MDL PVRatings
Number of poles
Ampere range
Maximum voltage rating
Interrupting capacity at 1000 Vdc
Design ambient temperature
Third-party certification
Suitable for reverse-feed applications

430–100 A
1000 Vdc
3 kA
50 °C
UL 489B
Yes

4125–350 A
1000 Vdc
5 kA
50 °C
UL 489B
Yes

4250–400 A
1000 Vdc
5 kA
50 °C
UL 489B
Yes

3300–600 A
1000 Vdc
7.5 kA
50 °C
UL 489B
Yes

Terminations
Al/Cu wire
Cu wire#6–300 kcmil#4–4/0 kcmil(2) 3/0–250 kcmil(2) 3/0–250 kcmil(2) #2–500 kcmil(2) #2–500 kcmil(3) 3/0–400 kcmil(3) 3/0–300 kcmil

Dimensions in inches (mm)10.13(257.3)
6.00(152.4)

3.38(85.9)
Side View

5.50(139.7)
Front View

FD PV breaker

7.22(183.4)

4.09(103.9)

Front View

Side View

KD PV breaker

16.00(406.4)10.13(257.3)

7.22(183.4)

4.09(103.9)

Front View

Side View

LG PV breaker

8.25(209.6)
Front View

4.06
(103.1)
Side View

MDL PV breaker

Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. PA01200011E / Z17119
August 2015

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