Magnum Energy MicroGT 500 User manual

Owner’s Manual
MicroGT 500 Inverter

© 2016 Sensata Technologies i
Thank you from all of us at Sensata Technologies for purchasing
this MicroGT 500 inverter. The MicroGT 500 is a product under the
Magnum Energy brand from Sensata. We understand there are many
purchasing options in the marketplace, and are pleased that you have
decided on a Magnum product.
Disclaimer of Liability
The use of this manual and the conditions or methods of installation,
operation, use, and maintenance of the MicroGT 500 inverter are
beyond the control of Sensata Technologies. Therefore, this company
does not assume responsibility and expressly disclaims liability for
loss, damage, or expense whether direct, indirect, consequential or
incidental that may arise out of or be in any way connected with such
installation, operation, use, or maintenance.
Due to continuous improvements and product updates, the images
shown in this manual may not exactly match the unit purchased.
Restrictions on Use
The MicroGT 500 inverter may only be used in life support systems
with the express written approval of Sensata Technologies. Failure
of this inverter can reasonably be expected to cause failure of that
life support system, or to affect the safety or effectiveness of that
system. If the MicroGT 500 inverter fails, it is reasonable to assume
the health of the user or other persons may be endangered.
Copyright Notice
Copyright 2016 by Sensata Technologies. All rights reserved.
Permission to copy, distribute, and/or modify this document is
prohibited without written permission from Sensata.
Document Information
Description – MicroGT 500 Owner’s Manual
Part Number – 64-0085 A Owner Manual, ME-MGT500
Date Published – December 2016
This entire manual is available for download—with many of the
diagrams available in color—on our website.
Contact Information
Sensata Technologies
2211 West Casino Rd.
Everett, WA 98204
Phone: [phone]/Fax: [phone]
Web: www.SensataPower.com

© 2016 Sensata Technologies
ii
Table of Contents
Table of Contents
1.0 Introduction ..................................................................1
2.0 Installation....................................................................2
The MicroGT 500’s Independent DC Inputs .......................... 2
Additional Installation Components to Purchase ................... 3
Required Parts and Tools ................................................. 3
Step 1: Installing the AC Junction Box ................................ 4
Step 2: Attaching the MicroGTs to the PV Frame/Rack........... 5
Step 3: Connecting the MicroGTs to the PV Modules.............. 6
Step 4: Grounding the System........................................... 6
Step 5: Connecting the MicroGTs using AC Connectors.......... 7
Step 6: Completing Installation of the MicroGT 500s............. 8
3.0 Operation.......................................................................9
Basic MicroGT PV System Operation (w/ MagWeb GT) ........... 9
4.0 Troubleshooting...........................................................10
Status Indications and Error Reporting...............................10
A Non-operational MicroGT Inverter...................................11
Troubleshooting a Non-operational MicroGT Inverter ..........11
Replacing a Non-operational MicroGT 500 Inverter.............12
Appendix A – Specifications ..............................................13
MicroGT 500 Specifications...............................................13
Appendix B – Efficiency Curves..........................................15
Appendix C – An AC Coupled/Battery-Backup PV System..16
Creating an AC Coupled System........................................16
Appendix D – Radio Interference Statement .....................18
Appendix E – Warranty & Service Information ..................19
Limited Warranty ............................................................19
How to Receive Replacement Service.................................20

© 2016 Sensata Technologies iii
List of Tables
Table 1, AC Wire Sizes and Lengths.......................................... 4
List of Figures
Figure 1, Basic PV System Installation Diagram ......................... 1
Figure 2, MicroGT 500 Dimensions........................................... 2
Figure 3, MicroGT 500s in a PV Array ....................................... 3
Figure 4, Attaching and Wiring the Junction Box ........................ 4
Figure 5, Attaching MicroGTs to the PV Module Frame................. 5
Figure 6, Connecting MicroGTs to the PV Modules....................... 6
Figure 7, Grounding the System using the Grounding Clamp ....... 6
Figure 8, Connecting the MicroGTs via AC Connectors................. 7
Figure 9, AC Connector Protective End Cap ............................... 7
Figure 10, MicroGT Inverter Serial Numbers.............................. 8
Figure 11, MicroGT Inverter Efficiency Curves...........................15
Figure 12, AC Coupled PV System Installation Diagram..............17
Table of Contents

© 2016 Sensata Technologies
iv
Safety Instructions
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important instructions to follow during the
installation and maintenance of your MicroGT 500 inverter. To
reduce the risk of electrical shock and ensure the safe installation
and operation of the MicroGT 500, the following symbol appears
throughout this document to indicate dangerous conditions and
important safety instructions.
WARNING: This indicates a situation where failure to
follow instructions may cause a serious hardware failure or
personnel danger if not applied appropriately. Use extreme
caution when performing this task.
• Do NOT disconnect the PV module from the MicroGT 500 inverter
without first disconnecting the AC power.
• Only qualified professionals should install and/or replace the
MicroGT 500 microinverters.
• All electrical work must be performed in accordance with local,
state, and federal electrical codes.
• Before installing or using the MicroGT 500, please read all
instructions and cautionary markings in the technical documents
and on the MicroGT 500 inverter system and the PV array.
• Be aware that the body of the MicroGT 500 inverter is the heat
sink and can reach high temperatures. To reduce risk of burns,
do not touch the body of the MicroGT 500.
• Use insulated tools to reduce the chance of electrical shock or
accidental short circuits.
• Remove all jewelry such as rings, watches, bracelets, etc., when
installing or performing maintenance on the microinverter.
• Always verify proper wiring prior to energizing the microinverter.
• Do not operate the microinverter if it has been damaged.
• No AC disconnect is provided as an integral part of this
microinverter. An AC disconnect must be provided as part of the
system installation.
• No overcurrent protection for the AC output wiring is provided as
an integral part of this microinverter. Overcurrent protection of
the AC output wiring must be provided as part of the installation.
• Do NOT attempt to repair the MicroGT 500 inverter. If it fails,
contact Sensata Customer Support (425-353-8833) to obtain an
RMA number and to start the replacement process. Damaging or
opening the MicroGT 500 inverter will void the warranty.
SAVE THESE INSTRUCTIONS

© 2016 Sensata Technologies 1
Introduction
1.0 Introduction
Congratulations on your purchase of a MicroGT 500 inverter. This
microinverter is used in utility-interactive grid-tied applications, and
the microinverter system is comprised of two key elements:
• MicroGT 500 inverter • MagWeb GT unit*
Figure 1 is an example of a basic system installation diagram using
multiple MicroGT 500 microinverters (and the optional MagWeb GT).
*– A MagWeb GT unit is optional, but highly recommended.
Figure 1, Basic PV System Installation Diagram
MicroGT 500 microinverters maximize PV energy production
Each PV module has individual Maximum Power Point Tracking
(MPPT) controls, which ensures that the maximum power is exported
to the utility grid regardless of the performance of the other PV
modules in the array. When PV modules in the array are affected
by shade, dust, orientation, or any situation in which one module
under-performs compared with the other units, the MicroGT 500
inverter ensures top performance from the array by maximizing the
performance of each module within the array.
More reliable than centralized or string inverters
The distributed MicroGT system ensures no single point of system
failure exists across the PV array. MicroGT 500 microinverters are
designed to operate at full power at ambient outdoor temperatures
of up to 149°F (65°C)—see Appendix B – Efficiency Curves (Figure
11). The microinverter housing is designed for outdoor installation
and complies with the NEMA 6 environmental enclosure rating.
ON
OFF
ON
OF F
ON
OF F
ON
OFF
Main Utility
Panel Utility/Grid
Power
Utility Power
Disconnect
Bi-Directional
Utility Meter
120/240VAC
@60Hz
120/240VAC
@60HZ
MagWeb
GT*
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OF F
Router
Junction
Box
Branch
Termination Cap
ON
OF F
ON
OF F
ON
OF F
ON
OF F

© 2016 Sensata Technologies
2
Installation
2.0 Installation
You can install individual PV modules in varying combinations of
module quantity, orientation, type, and power rate. Refer to Figure
2 for the MicroGT 500’s dimensions.
The MicroGT 500 inverters connect with the split-phase grid, and
operate with most 60 and 72-cell PV modules. The microinverter
auto-senses grid voltage and sets voltage parameters automatically
upon initial power up. For more technical information, please see
the Specifications section in this manual.
MODEL NUMBER AC GRID PV MODULE MODULE CONNECTOR
MicroGT 500 60Hz/240V 60, 72 Cell MC4 Type or Customize
Maximum MicroGT 500 units per branch:
Maximum parallel combination = x7/branch for a 20A breaker
The MicroGT 500’s Independent DC Inputs
Each MicroGT 500 inverter has two independent DC inputs, each
with independent MPPT control and data monitoring.
Figure 2, MicroGT 500 Dimensions
Male Female
88.5” (225 cm)
8.7” (22.1 cm)
6.5” (16.5 cm)
A PV system using MicroGT 500 inverters is simple to install (Figure
3). Each MicroGT 500 easily mounts on the PV racking, directly
beneath the PV module(s). Low voltage DC wires connect from the
PV module directly to the MicroGT 500, eliminating the risk of high
DC voltage. Installation MUST comply with local regulations/rules.
WARNING: Perform all electrical installations in accordance
with local electrical codes. Installation of this equipment
includes the risk of electric shock. Qualified professionals
should install and/or replace MicroGT 500 inverters.
WARNING: Once the system is connected to the electrical
grid, do not touch any live parts in the system, including
the PV array.
7.5” (19.1 cm)72.3” (183.6 cm)
LED

© 2016 Sensata Technologies 3
Installation
Additional Installation Components to Purchase
• AC connector cable (PN: ME-MGT-AC-F, x1/branch)
• AC extension cable (PN: ME-MGT-AC-EXT, if required)
• AC female endcap (PN: ME-MGT-ENDCAP-F, x1/branch)
Required Parts and Tools
In addition to your PV array and its associated hardware, the
following tools are required for assembly:
• One AC connection junction box per branch circuit
• Mounting hardware suitable for module racking
• Sockets and wrenches for mounting hardware
• Continuous grounding conductor and grounding washers
• Phillips screwdriver
• Torque wrench
Note: MicroGT 500 inverters are designed to only operate when they
can sense power coming from the grid. Even if they are plugged into
the PV array, they will not turn themselves on until they can read
power from the grid.
WARNING: DO NOT connect the MicroGT 500 inverters
to the utility grid or energize the AC circuit until you have
completed all of the installation procedures.
BENEFITS OF ADDING A MAGWEB GT TO YOUR PV SYSTEM
Magnum’s MagWeb GT (ME-MGT-MW) is the information gateway for
your MicroGT 500 inverter system—it collects module performance
data from each individual MicroGT inverter. The MagWeb GT is easily
installed, simply plug it into any wall outlet and provide an Ethernet
or Wi-Fi connection to a broadband router or modem. The MagWeb
GT’s software displays performance trends, informs you of abnormal
events, and controls system shutdown when needed.
Figure 3, MicroGT 500s in a PV Array

© 2016 Sensata Technologies
4
Installation
Step 1: Installing the AC Junction Box
First, install and wire an AC branch circuit junction box (Figure 4).
1. Install an appropriate junction box at a suitable location on the
PV racking system (typically at the end of a branch of modules).
2. Connect the cables to the AC branch circuit junction box.
a) Route the open wire ends of the AC connector cable and
the AC branch circuit cable (from point of utility) in to the
junction box. Secure both cables using appropriate gland/
strain relief fittings.
b) Connect the AC wires from both cables inside the junction
box (L1 – Black; L2 – Red; NEUTRAL – White).
Note: Be sure to size the AC wire to account for any voltage drop
between the AC branch circuit junction box and the point of utility
interconnection. See Table 1.
Figure 4, Attaching and Wiring the Junction Box
MicroGTs/
Branch 234567*89
External
Wire Size Maximum External Cable Length in Feet (Meters)
12 AWG
(3.3 mm2)370.7
(113) 237.1 (72) 167.9 (51) 124.3 (38) 93.6 (28) 70.2 (21) 51.4 (16) 35.7 (11)
10 AWG
(5.3 mm2)593.1
(181) 379.4 (116) 268.6 (82) 198.9 (61) 149.7 (46) 112.3 (34) 82.3 (25) 57.1 (17)
8 AWG
(8.4 mm2)926.8
(282) 592.9 (181) 419.6 (128) 310.7 (95) 233.9 (71) 175.5 (54) 128.6 (39) 89.3 (27)
6 AWG
(13.3 mm2)1482.8
(452) 948.6 (289) 671.4 (205) 497.1 (152) 374.3 (114) 280.8 (86) 205.7 (63) 142.9 (44)
Table 1, AC Wire Sizes and Lengths
*7 is the maximum number/branch with a 20-amp breaker
AC Connector Cable
(PN: ME-MGT-AC-F)
AC Branch
Circuit Cable

© 2016 Sensata Technologies 5
Installation
Step 2: Attaching the MicroGTs to the PV Frame/Rack
1. Mark the location of each MicroGT 500 inverter on the PV rack—
keep in mind the location of the AC branch circuit junction box,
or any other obstructions.
2. Mount and attach a MicroGT inverter at each of the identified
locations using hardware recommended by the PV module
racking vendor (Figure 5).
Note: If you are using the appropriate grounding washer (check with
an electrician), place the grounding washer (WEEB) between the PV
racking frame and the MicroGT 500 inverter.
WARNING: Prior to installing any MicroGTs, verify that the
utility voltage at the point of common connection matches
the voltage rating on the MicroGT inverter’s label.
WARNING: Do not mount the MicroGT inverter in a location
that allows exposure to direct sunlight. Leave a minimum
of 3/4” (1.5 cm) between the roof and the bottom of the
MicroGT inverter to allow proper air flow.
Note: Connecting cables (Steps 3-5) can be done in any order, but
DO NOT energize until all the steps are completed.
Figure 5, Attaching MicroGTs to the PV Module Frame
4” (101 mm)

© 2016 Sensata Technologies
6
Installation
Note: Upon connecting the DC cables to the first module, the MicroGT
500 inverter’s LED (on bottom of unit) should blink red, followed by
three green blinks—indicating that the MicroGT inverter is functioning
correctly. This test function starts and ends within 5 seconds of
connecting the DC cables, so pay careful attention to the LED when
performing this task. This only occurs when DC voltage is applied to
the first module. The LED will not flash when the second module is
connected.
Step 4: Grounding the System
Each MicroGT 500 comes with a ground clamp that can accommodate
a single #6 AWG (13.3 mm2) copper ground wire. Check your local
electrical code for grounding conductor sizing requirements.
Note: If you used grounding washers to ground the MicroGT 500’s
chassis to the PV racking—per Note in Step 2—skip this step.
1. Connect the grounding electrode conductor to the MicroGT 500
inverters’ ground clamps (Figure 7).
Note: The AC output neutral is not bonded to ground inside the
MicroGT 500 inverter.
Figure 7, Grounding the System using the Grounding Clamp
Figure 6, Connecting MicroGTs to the PV Modules
Step 3: Connecting the MicroGTs to the PV Modules
Use Figure 6 when connecting the DC cables from the PV modules to
the MicroGT 500 inverters.
DC MC4 Connectors

© 2016 Sensata Technologies 7
Step 5: Connecting the MicroGTs using AC Connectors
WARNING: DO NOT exceed the maximum number of seven
microinverters in an AC branch circuit.
Note: An AC Extension Connector cable (ME-MGT-AC-EXT) is needed
if the microinverters on the same branch circuit are >6 feet apart.
1. Plug the AC Connector cable’s female end (other end hardwired
to junction box – Figure 4) into the male AC connector of the first
MicroGT. Twist the connector’s collar (until you hear a “click”) to
lock the two together.
2. Plug the female AC connector of the first MicroGT into the male
AC connector of the next microinverter (Figure 8). Twist to lock.
Repeat the process for the remainder of the microinverters
installed in your system to form a continuous AC branch circuit.
3. Install a female protective end cap (ME-MGT-ENDCAP-F) on the
open female AC connector of the last microinverter in the AC
branch circuit (Figure 9).
Figure 9, AC Connector Protective End Cap
B
MADE I N USA
Female Male
Figure 8, Connecting the MicroGTs via AC Connectors
AC Connectors
To disconnect: Press the release
tab with a screwdriver and twist
the connector’s collar to unlock.
Installation
Note: Use a
female end cap to
cover/protect an
unused female AC
connector.

© 2016 Sensata Technologies
8
Installation
Step 6: Completing Installation of the MicroGT 500s
Each MicroGT 500 microinverter has two removable serial number
labels on the front side (Figure 10).
Use these serial number labels to create your system’s microinverter
array installation map.
Note: The unique serial number for each MicroGT is also the ‘Inverter
ID’ that is programmed into the MagWeb GT device.
For each microinverter:
• One label for each channel (i.e., each microinverter powers two
panels—A & B). See below.
101123458045 101123458049101123458044 … ..
101123458044
101123458044
AB ABAB
Figure 10, MicroGT Inverter Serial Numbers
Example: In the above, serial number “101123458044” identifies
the first microinverter in the displayed array. “101123458044-A”
identifies that microinverter’s right PV panel, and serial number
“101123458044-B” identifies that microinverter’s left PV panel.
Note: For every MicroGT microinverter, the side with the longest AC
connector is always labelled “B”.

© 2016 Sensata Technologies 9
Operation
3.0 Operation
WARNING: Ensure that all AC and DC wiring is correct. Check
that none of the AC and DC wires are pinched or damaged.
Be sure all the junction boxes are properly closed.
Basic MicroGT PV System Operation (w/ MagWeb GT)
To operate a battery-less MicroGT 500 inverter PV system:
1. Turn on the AC circuit breaker on each MicroGT inverter branch
circuit.
2. Turn on the main utility grid AC disconnect. The system will start
producing power after a five-minute wait time (per UL 1741).
Note: Five minutes after turning on the AC circuit breaker, the
units’ LEDs should start blinking green every 2 seconds. This
means they are producing power normally—however, they have
not yet connected to the MagWeb GT (if installed).
Additional Steps with an Installed MagWeb GT
3. Plug in the MagWeb GT and follow instructions per your MagWeb
GT Owner’s Manual.
Once the MagWeb GT has been plugged in and acknowledges
the MicroGT inverters, the microinverters will start to blink
every 10 seconds.
Note: The time required for all microinverters in the system
to report to the MagWeb GT will vary with the number of
microinverters in the system. Once communications have been
established between the MagWeb GT and the microinverters, the
microinverters will start to send performance data over power
line to the MagWeb GT. You can verify the proper operation of the
MicroGT inverters via the MagWeb GT.
Refer to the MagWeb GT Owner’s Manual for more information
on its operation.

© 2016 Sensata Technologies
10
Troubleshooting
4.0 Troubleshooting
If your PV system does not operate properly, qualified personnel
might correct the situation using the troubleshooting info below.
Status Indications and Error Reporting
The LED on the bottom of the MicroGT assists with troubleshooting.
Start up LED:
A quick red blink followed by three short green blinks when DC
power is first applied to the MicroGT indicates a successful startup.
Operation LED:
• Flashing Slow Green (10 sec. interval) – producing power and
communicating with the MagWeb GT.
• Flashing Fast Green (2 sec. interval) – producing power, but not
communicating with MagWeb GT.
• Flashing Red – not producing power.
• Solid Red – microinverter has detected a ground fault (see
below).
GFDI Error:
A solid red LED indicates the MicroGT 500 has detected a DC voltage
Ground Fault Detector Interrupter (GFDI) error in the PV system.
Unless the GFDI error has been cleared, the LED will remain red and
the MagWeb GT will keep reporting the fault. After the ground fault
error is fixed, follow the instructions in the MagWeb GT Owner’s
Manual to clear this GFDI error.
Other Faults:
Other faults are reported to the MagWeb GT (if installed). Refer to
the MagWeb GT Owner’s Manual for other faults and troubleshooting
procedures.
WARNING: Only qualified personnel should directly handle
the MicroGT 500 inverter.
WARNING: Never disconnect the DC wire connectors when
under load. Ensure that no current is flowing in the DC wires
prior to disconnecting.
WARNING: Always disconnect AC power before
disconnecting the PV module wires from the MicroGT
inverter. Either disconnecting the appropriate AC circuit
breaker or unplugging the first AC connector of the first
microinverter in a branch circuit is suitable as a means of
disconnection.
WARNING: The MicroGT inverter is powered by PV module
DC power. AFTER disconnecting the DC power—when
reconnecting the PV modules to the microinverter—be sure
to watch for the four short LED flashes (x1 red, x3 green).

© 2016 Sensata Technologies 11
Troubleshooting
A Non-operational MicroGT Inverter
There are two possible overall areas of trouble:
• The MicroGT inverter may be having problems, or
• The MicroGT inverter is working fine, but is having trouble
communicating with the MagWeb GT (if installed).
The items below refer to MicroGT inverter issues, not communication
issues (addressed in the MagWeb GT manual). A quick way to tell
whether the issue is the microinverter or a communication problem
with the MagWeb GT:
A. Diagnosing from the microinverter: A red light—either
blinking or solid on the microinverter—or no light at all. No light,
or a red light, means it is likely a microinverter problem.
B. Diagnosing from the MagWeb GT:
a) No-data-display: This is probably a communication issue,
not a microinverter problem.
b) Problems with erratic display: Data is displayed for some
period and then no data is displayed—most likely a
communication issue.
c) 0 watts, or 2 watts: Possibly a microinverter problem.
d) Erratic data display that is not coordinating with data displays
from other units: most likely a microinverter problem.
Troubleshooting a Non-operational MicroGT Inverter
1. Verify the utility voltage and frequency are within the ranges
shown in the Specifications section of this manual.
2. Check the connection to the utility grid. Verify utility power is
present at the inverter in question by removing AC, then DC
power. Never disconnect the DC wires while the microinverter
is producing power. Re-connect the DC module connectors and
watch the LED (x1 red followed by x3 short green LED flashes).
3. Check the AC branch circuit interconnection between all the
microinverters. In rare cases, the wire in the AC plug may
have worked loose. This will need to be reviewed by a qualified
electrician. Verify that each inverter is energized by the utility
grid as described in the previous step.
4. Ensure all AC breakers are functioning properly and are closed.
5. Check the DC connections between the microinverter and the
PV module.
6. Verify that the PV module DC voltage is within the allowable
range shown in the Specifications section of this manual.
7. If the problem persists, please call Sensata Customer Support
at 425-353-8833.
WARNING: Do not attempt to repair the MicroGT 500
inverter. If troubleshooting methods fail, contact Sensata
Customer Service at 425-353-8833.

© 2016 Sensata Technologies
12
Troubleshooting
Replacing a Non-operational MicroGT 500 Inverter
1. Disconnect the MicroGT inverter from the PV module in the
order below:
a) Disconnect the AC by turning off the branch circuit breaker.
b) Disconnect the AC connector(s) from the adjacent inverter(s)
in the branch circuit.
c) Disconnect the PV module DC MC4 wire connectors from the
microinverter to be replaced.
d) Remove the MicroGT inverter from the PV array.
2. Install a replacement MicroGT inverter to the rack. Remember to
observe the flashing LED light as soon as the new microinverter
is connected to the DC PV module cables.
3. Connect the AC cable of the replacement MicroGT inverter and
the neighboring microinverter to complete the branch circuit
connections.
4. Close the branch circuit breaker, and then verify operation of
the replacement microinverter.
WARNING: Be sure to verify that the voltage and current
specifications of your PV module match those of the
microinverter.
WARNING: You must match the DC operating voltage
range of the PV module with the allowable input voltage
range of the MicroGT inverter.
WARNING: The maximum open circuit voltage of the PV
module must not exceed the specified maximum input
voltage of the MicroGT inverter.

© 2016 Sensata Technologies 13
Appendix A – Specifications
Appendix A – Specifications
MicroGT 500 Specifications
Model MicroGT 500
Input Data (DC)
Recommended PV Module Power (STC) Range 180 – 310W
Recommended PV Module Power (STC) Rating 180 – 330W
MPPT Voltage Range 22 – 45V
Operation Voltage Range 16 – 52V
Maximum Input Voltage 55V
Startup Voltage Range 16 – 22V
Maximum Input Current 12A (x2)
Output Data (AC)
Nominal Output Voltage 240V
Maximum Continuous Output Power 500W
Maximum Output Current 2.08A
Nominal Output Voltage Range 211 – 264V*
Maximum Output Fault Current (Peak) 54.8A
Maximum Output Fault Current (RMS) 4.85A
Maximum Output Fault Current Duration 1.639ms
Reactive Current 0.1A
Extended Output Voltage Range 181 – 298V
Nominal Output Frequency 60Hz
Default Output Frequency Range 59.3 – 60.5Hz*
Extended Output Frequency Range 55.1 – 64.9Hz
Power Factor
>0.99
Total Harmonic Distortion <3%
Maximum Units per Branch 7 for 20A breaker**
Efficiency
Peak Efficiency 95.5%
CEC Weighted Efficiency 95%
Nominal MPPT Efficiency 99.5%
Night Power Consumption 120mW
Mechanical Data
Operating Ambient Temperature Range -40°F to +149°F
(-40°C to +65°C)
Operating Internal Temperature Range -40°F to +185°F
(-40°C to +85°C)
Dimensions (W x H x D) 8.7” X 6.5” X 1.1”
(22cm X 17cm X 3cm)
Weight 5.5lbs/2.5kg
AC Bus 12 AWG
Enclosure Rating NEMA 6
Cooling Natural Convection

© 2016 Sensata Technologies
14
Appendix A – Specifications
Features & Compliance
Communication Power Line (PLC)
Design Lifetime 25 yrs
Emissions & Immunity (EMC) Compliance FCC Part15; ANSI C63.4;
ICES-003
Monitoring Local monitoring only at
this time
Safety Class Compliance UL1741, CSA C22.2 No.
107.1-01, NEC2014
690.12
Grid Connection Compliance IEEE1547
* Programmable through the MagWeb GT to meet customer need.
** Dependent on local regulations.
Specifications @ 25°C – Subject to change without notice.
MicroGT 500 Specifications (Cont.)

© 2016 Sensata Technologies 15
Appendix B – Efficiency Curves
Appendix B – Efficiency Curves
MicroGT 500 Efficiency-Temperature Curves
96
95
94
93
92
91
90
MicroGT 500 Eff. With Ambient Temp.
100% Pout = 500W
Efficiency (%)
Efficiency (%)
100% Pout = 500W
MicroGT 500 60Hz/240V
96
95
94
93
92
91
90
MicroGT 500 Efficiency Curves
Figure 11, MicroGT Inverter Efficiency Curves
– 40°C (-40°F)
+ 25°C (77°F)
+ 65°C (149°F)
Vin = 24V
Vin = 40V
Vin = 32V