Danfoss Central Inverter Solutions
30%
Better Cooling of
IGBT’s
ShowerPower® Stack
provides better heat
transfer for cooling
IGBT’s
About Danfoss

Danish based international company
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Business areas:

Drives, Solar Inverters, Power modules

Refrigeration & Air Conditioning

Heating

Industrial Automation

High Pressure Pumps
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Over 6 billion USD sold in 2011
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EBITA 1.06 billion in 2011
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24,000 employees worldwide
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78 years of experience with
energy-efficient technologies
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40 years of experience in
power electronics
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79 Plants worlwide
www.danfoss.us/solar
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Danfoss Solar Inverters

Production
4 GW capacity in Nordborg, Denmark for string Inverters
250 MW capacity in Loves Park, IL USA for Utility Scale
inverters
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Local offices
USA, Germany, France, Italy, Spain
Benelux, UK, China
www.danfoss.us/solar
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Strong, reliable global partner
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We are a power electronics expert

We combine our solar inverter knowledge with our longtime power drives
expertise
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Unmatched, customized expertise and support for your centralized inverter
applications
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Central Inverters now in our product portfolio
We strive to meet
our
customers’ needs.
Danfoss Central Inverters
were developed as per
request from our Utility
Scale customers in the
SunBelt regions of the
world.
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Product Portfolio covers all inverter needs
Residential
Roof Top
DLX
Commercial
Roof Top
FLX
SLX
Ground-mounted
power plants
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DLX Inverter Range (Residential)
Single phased, grid connected inverter with
High Frequency Isolation transformer
Outdoor
The range covers 2.0, 2.9, 3.8 and 4.4 kW in IP65 cabinet (Outdoor)
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DLX 2000
DLX 2900
DLX 3800
DLX 4400
Available Q2/2012 to be sold through Distribution & Large System
Integrators out of Loves Park, IL
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240Vac, 1-phase, 60 Hz
208Vac, 1-phase, 60 Hz
230Vac, 1-phase, 50 Hz
Offers free I-phone /I-pad App, and web portal
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FLX Pro+ Inverter Range
3-phase, grid connected, Transformerless.
The range covers 8, 10, 12.5, 15, and 17 kW in IP65 cabinet
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FLX Pro+ 8kW
FLX Pro+ 10kW
FLX Pro+ 12.5kW
FLX Pro+ 15kW
FLX Pro + 17 kW
3-MPPT input w/ boost converter topology –
1000 Voc
Output Voltage:
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www.danfoss.us/solar
208Vac, 3-phase, 60 Hz
480Vac, 3-phase, 60 Hz
400Vac, 3-phase, 50 Hz
Available Q4/2013 to be sold through
Distribution, key OEM’s & EPC contractors
out of Loves Park, IL
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SLX - Series Central
Inverter
Hassle-free central solution for
outdoor applications
www.danfoss.us/solar
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Utility Scale Design
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Ease of Installation
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Optimal Operation
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Low Maintenance
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SLX - Series Central
Inverter
Utility Scale Design

advanced grid management
capabilities

minimized cabling loses with
centralized design
Ease of Installation
www.danfoss.us/solar

single unit delivered and
mounted directly to a pad
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quicker start-up time due to
less unit installations per
project
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SLX - Series Central
Inverter
Optimal Operation
peak efficiency from
- 4°F to 122°F ( 50°C )
without derating
critical components are
NEMA 4 sealed
Low Maintenance
50°
C
Harsh weather operation
liquid cooled heat sinks keeps the
SLX unit cleaner
extended maintenance intervals
Operate at maximum
efficiency from -4°
to 122°F without
derating
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SLX - Series Central
Inverter
Additional benefits
1.0 MVA, 1.25 MVA, and 1.50
MVA
98% peak efficiency
UL compliant
enhanced monitoring, data
logging, and reporting
drop off solution for a 2.0, 2.5, or
3.0 MVA AC station
50°
C
Harsh weather operation
Operate at maximum
efficiency from -4°
to 122°F without
derating
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Danfoss innovative design
advantages
www.danfoss.us/solar

NEMA 4 (IP65) protection
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Liquid Cooling
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ShowerPower® Stack
Technology
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>98% Efficiency
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Aluminium Enclosure
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NEMA 4 (IP65)
protection
www.danfoss.us/solar
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Rugged, space saving,
modular, and highly
integrated
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Ease of installation,
operation, and maintenance
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Dehumidifier for water
vapour removal
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Boards conformably coated
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Designed and built for
outdoor application with
20+ year life
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Liquid cooling
www.danfoss.us/solar

No plumbing work on site
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Higher power density and
improved reliability
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Variable speed pump and
fan for better performance
and efficiency
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Liquid cooled inductors for
more efficient filter
components
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ShowerPower® Stack
Technology
www.danfoss.us/solar

Patented liquid cooling
technology for improved
cooling of power electronics
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30% better heat transfer for
cooling IGBT’s

Liquid flow directly on IGBT
base to remove heat more
efficiently
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ShowerPower® Stack Technology

Heat losses are shared between four separate units and IGBT modules will
operate with lower temperature, resulting in longer life expectancy
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Danfoss ensures quality in all PCB boards and inverter modules through
designing, assembling and testing each one individually
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The inverter DC link is based on film capacitors - resulting in better reliability and
a longer life while also reducing maintenance
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Danfoss ensures a more reliable product by having the ability to measure and
control the temperature on each IGBT module
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A quick and drip-Free disconnect for the coolant supply of the inverter module
makes maintenance quick and simple.
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Increased Return on Investment
Drop off solution
Set on concrete pad and ready to connect
Can be skid mounted with transformer
Compact size and weight improve logistics
High Reliability & Safety
Liquid cooling with ShowerPower® removes heat
efficiently and increases performance
Danfoss design, tests, and assembles all PCB boards &
inverter modules to ensure the highest quality and proven
reliability
Enhanced safety features in AC and DC disconnection &
highly reliable circuit breakers
Outdoor Design
Components not exposed to external pollutants
Operates at full output up to 50C
Outdoor cabinet will last life of the system
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SLX Innovative Design Advantages
ShowerPower®
AC Circuit
Breaker
AC Filter
Capacito
r
DC Circuit Breaker
Liquid Cooled
Inductor
VF Drives
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SLX Innovative Design Advantages
Four Power
Stacks
AC Output
Cabling or
Bus Bar
Input DC
Fusing
Heat
Exchanger
Pump
Control
Boards
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Skid Concept – P8011 SKID, Iso view
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Skid Concept
- Openings in skid under unit for customer connections
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Invest with confidence
SLX Value Proposition
Lower Total Cost of Ownership
 Complete outdoor solution for
lower up-front capital costs
 Easy installation and access for
lower labor cost
 Low scheduled maintenance for
lower operating costs
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Invest with confidence
SLX Value Proposition
Increased Return on Investment
 Drop off solution for faster
installation
 High reliability and Safety
 Outdoor Design for lower chance
of environmental impact to
performance
www.danfoss.us/solar
| 24
SLX Product availability

Witness testing in October at Loves Park,
IL
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Limited quantities available from Nov.1st ,
2012 (US Installations with Preferred
Customers)
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Full production by Q4 2013
Service & Warranty
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Full on-site warranty for first (5) years

10, 15, 20 years warranty available

Service contracts available
www.danfoss.us/solar
| 25
Danfoss Central Inverter Solutions
30%
Better Cooling of
IGBT’s
ShowerPower® Stack
provides better heat
transfer for cooling
IGBT’s