Kaco blueplanet 40.0 TL3 User manual


Instruction Manual
• Authorized Electricians
KACO blueplanet 32.0 TL3
KACO blueplanet 40.0 TL3
KACO blueplanet 50.0 TL3

Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
Installation Instructions
for authorized electricians
Contents
 General Information .................................
. About this document............................................
. Layout of Instructions...........................................
 Safety ......................................................... 
. Intended use............................................................
. Protection features ................................................
. Standards and regulations..................................
 Description ................................................ 
. Mode of Operation ................................................ 
. Description of the unit ....................................... 
 Technical Data ......................................... 
. Electrical Data........................................................ 
. Mechanical...............................................................
 Transportation and Delivery ...................
. Delivery.....................................................................
. Transportation........................................................
 Mounting the inverter .............................
. Installing and securing the inverter ............. 
. Installing the DC and AC isolator switches . 
 Installing the inverter ..............................
. Opening the connection area...........................
. Drilling holes for electrical and
interface connections..........................................
. Making the electrical connection................... 
. Connecting the interfaces..................................
. Sealing the connection area ............................
. Starting up the inverter......................................
 Conguration and Operation................. 
. Controls....................................................................
. Initial commissioning .........................................
. Menu structure......................................................
. Monitoring the inverter .....................................
. Performing a software update ........................
 Maintenance/Troubleshooting .............. 
. Visual inspection...................................................
. External cleaning..................................................
. Shutting down for maintenance and
troubleshooting....................................................
. Faults........................................................................ 
. "Fault" messages on the display/LED............
 Service...................................................... 
 Shutdown/Disassembly.......................... 
. Shutting down the inverter..............................
. Uninstalling the inverter................................... 
. Dismantling the inverter................................... 
 Recycling and disposal ...........................
 Appendix .................................................

General Information
Page  Installation Instructions KACO blueplanet . TL / . TL / . TL
 General Information
. About this document
WARNING
Improper handling of the inverter can be hazardous
›You must read and understand the operating instructions before you can install and use the inverter
safely.
.. Other applicable documents
During installation, observe all assembly and installation instructions for components and other parts of the system.
These instructions also apply to the equipment, related components and other parts of the system.
.. Storing the documents
These instructions and other documents must be stored near the system and be available at all times.
. Layout of Instructions
.. Symbols used
General hazard Risk of re or explosion
High voltage! Risk of burns
Authorized electrician Only authorised electricians may carry out tasks indicated with this symbol.
.. Safety warnings symbols guide
DANGER
High risk
Failure to observe this warning will lead directly to serious bodily injury or death.
WARNING
Potential risk
Failure to observe this warning may lead to serious bodily injury or death.
CAUTION
Low-risk hazard
Failure to observe this warning will lead to minor or moderate bodily injury.
CAUTION
Risk of damage to property
Failure to observe this warning will lead to property damage.

Safety
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
ACTIVITY
Risk of damage to property
Failure to observe this warning will lead to property damage.
.. Additional information symbols
NOTE
Useful information and notes
.. Instructions symbols guide
Instructions
↻Prerequisite for the step
. Carry out step.
. (Additional steps, if applicable)
» Results of the step
 Safety
DANGER
Lethal voltages are still present in the terminals and cables of the inverter even after the inverter has
been switched o and disconnected.
Severe injuries or death may occur if the cables and terminals in the inverter are touched.
Only appropriately qualied and authorised electricians may open, install or maintain the inverter.
›Keep the inverter closed when the unit is in operation.
›Do not touch the cables or terminals when switching the unit on and o.
›Do not make any modications to the inverter.
The electrician is responsible for observing all existing standards and regulations.
• Keep unauthorized persons away from the inverter and PV system.
• In particular, be sure to observe IEC---: "Requirements for special types of business premises, rooms and
installations - Solar-Photovoltaic-(PV) Power Supply Systems.
• Ensure operational safety by providing proper grounding, conductor dimensioning and appropriate protection against
short circuiting.
• Observe all safety instructions on the inverter and in these operating instructions.
• Switch o all voltage sources and secure them against being inadvertently switched back on before performing visual
inspections and maintenance.
• When taking measurements while the inverter is live:
–Do not touch the electrical connections
–Remove all jewellery from wrists and ngers.
–Ensure that the testing equipment is in safe operating condition.
• Stand on an insulated surface when working on the inverter.
• Modications to the surroundings of the inverter must comply with the applicable national and local standards.
• When working on the PV generator, it is also necessary to switch o the DC voltage with the DC isolator switch in addi-
tion to disconnecting the PV generator from the grid.

Safety
Page  Installation Instructions KACO blueplanet . TL / . TL / . TL
. Intended use
The ISO-inverter converts clean renewable DC energy into AC energy for export into the utility. The inverter was designed
in accordance with UL , CSA-C. No. .. and the NFPA . Authorized personnel who are qualied for the VAC
and VDC voltage ratings are the only people who should install or maintain this equipment. Lethal hazards exist which
may result in serious injury.
Operate the inverter only with a permanent connection to the public power grid.
Any other or additional use of the device is deemed improper. This includes:
• Mobile use,
• Use in rooms where there is a risk of explosion,
• Use in rooms where the humidity is higher than %,
• Operation outside of the specications intended by the manufacturer,
• Standalone mode
. Protection features
For your safety, the following monitoring and protective functions are integrated into blueplanet inverters:
• Overvoltage conductors/varistors to protect the power semiconductors from high-energy transients on the grid and
generator side,
• Temperature monitoring of the heat sink,
• EMC lters to protect the inverter from high-frequency grid interference,
• Grid-side grounded varistors to protect the inverter against burst and surge pulses,
• Islanding detection according to IEEE 
. Standards and regulations
Electrical conformity according to U.S., Canadian and international safety operating standards and code
requirements:
• UL -nd Ed 
• NEC ()
• CSA . No. -: Rev 
• IEEE Std. -
• IEEE Std. .-
• FCC Part  Class B
• NFPA 
• Wiring method is accordance with the National Electrical Code ANSI/NFPA 
• Directive concerning Electromagnetic Compatibility with Class B (Council Directive //EC)
• Low Voltage Directive (Council Directive //EC)
• The Inverter has a on-board overcurrent protection for DC circuit.
• The inverter has no internal overcurrent protection for AC circuit. The overcurrent protection for AC circuit must be
installed by authorized electricians.
• The Inverter has a over-temperature and anti-islanding protection.

Description
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
 Description
. Mode of Operation
The inverter converts the DC voltage generated by the PV modules into AC voltage and feeds it into the grid. The feed-
in process begins when there is sucient sunlight and a specic minimum voltage is present in the inverter. If, as it gets
dark, the voltage drops below the minimum voltage value, the feed-in operation ends and the inverter switches o.
. Description of the unit
.. Inverter as part of a PV system
... System layout
KWhKWh
PV generator PV generator
Inverter with
DC/AC isolator switches
Inverter with
DC/AC isolator switches
Fuse Fuse
Load
Feed-in meterReference
counter
Main switch
Grid connection point
Selective main
switch
Figure : Circuit diagram of a system with two inverters

Description
Page  Installation Instructions KACO blueplanet . TL / . TL / . TL
... Summary of the components
PV generator
The PV generator, i.e. the PV modules, converts the radiant energy of sunlight into electrical energy.
DC terminal point
Options for parallel connections of several generator strings:
• To a DC terminal point between the DC generator and inverter,
• directly on the inverter (one terminal per -line is included on the inverter for each device model (with one or three MPP
trackers)),
• directly to the PV generator with a positive and negative lead to the inverter.
DC isolator switch (-pole (Model M devices) / -pole (Model M devices))
Use the DC isolator switch to disconnect the inverter from all power sources on the PV generator side.
AC isolator switch (-pole)
Use the AC isolator switch to disconnect the inverter from all power sources on the grid side.
Feed-in meter
The feed-in meter is to be specied and installed by the power supply company. Some power supply companies also
allow the installation of your own calibrated meters.
.. Inverter diagram
1
2
3
6
7
8
Figure : Inverter diagram
Key
1 Upper housing cover 6 Control panel
2 Doors 7 Fan cover
3 Cover for the connection area 8 Side housing cover
4 AC isolator switch 9 Door locks
5 DC isolator switch
4
5
9
9

Description
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
.. Mechanical components
DC/AC isolator switches
One DC isolator switch (right) and one AC isolator switch (left) are located at the front of the inverter housing. The DC iso-
lator switch is used to disconnect the inverter from the PV generator in order to carry out service activities. The AC isolator
switch is used to disconnect the inverter from the power supply in order to carry out service activities.
N
O
I
O
O
F
F
O
O
F
F
N
O
I
N
O
I
O
O
F
F
N
O
I
O
O
F
F
O
O
F
F
I
O
N
Ø5...Ø10mm
N
1
2
Disconnecting the inverter from the PV generator and/
or power supply
Switch the DC/AC isolator switch from  (ON) to  (OFF).
Press in the safety catch from behind.
Attach the hanging lock to the safety catch.
Lock the hanging lock.
» The inverter is now disconnected from the PV genera-
tor and/or power supply.
Connecting the inverter to the PV generator / power
supply
Open the hanging lock.
Remove the hanging lock from the safety catch.
Press in the safety catch from the front.
Switch DC/AC isolator switch from  (OFF) to  (ON).
» The inverter is now connected to the PV generator
and/or power supply.
Figure : DC/AC isolator switches
Key
1 Safety catch
2 Hanging lock
.. Interfaces
The following interfaces are used for communication or remote monitoring or the inverter and are congured in the set-
tings menu. (Section . on page ).
... RS interface and Modbus interface
Use this system monitoring function if you cannot check the functioning of the system on-site on a regular basis, e.g. if
your place of residence is located a great distance from the system.
To connect the RS and modbus interface, contact your authorised electrician.
For monitoring your PV system using the RS interface, KACO new energy GmbH oers monitoring devices:
... Ethernet interface
Monitoring can occur directly on the unit using the integrated Ethernet interface. A local web server is installed in the
unit for this purpose.
For monitoring a system comprising several inverters, we recommend you use an external data logging and monitoring
system.
... USB interface
The USB connection of the inverter is a type A socket. It is located on the connection board on the underside of the
inverter under a cover. The USB connection is specied to draw mA of power. Use the USB interface for reading out
stored operating data and loading software updates using a FAT-formatted USB stick.
... S interface
The S interface transmits pulses between a pulsing counter and a tari metering unit. It is a galvanically isolated transis-
tor output. It is designed according to DIN EN -:- (pulse output devices for electromechanical and elec-
tronic meters).

Technical Data
Page  Installation Instructions KACO blueplanet . TL / . TL / . TL
 Technical Data
. Electrical Data
Product models 32.0 TL3 M1
32.0 TL3 M3
40.0 TL3 M1
40.0 TL3 M3
50.0 TL3 M1
50.0 TL3 M3
DC electrical specications
DC max. input voltage (VDC)   
DC peak power operating range (MPP) (VDC) 310 to 550 380 to 850 480 to 850
DC operating range (VDC) 200 to 600* 200 to 850* 200 to 850*
DC minimum start voltage (VDC) 250
DC maximum operating current per channel (ADC) 108 (M1) / 36 (M3)
DC maximum short circuit current per channel (ADC) 165 (M1) / 55 (M3)
Maximum input source backfeed current (ADC) 0
DC input overload production Voltage and current limiting during operation
DC input terminals / conductor size per channel A - B 1 Pos and 1 Neg / 8-14 AWG CU
DC polarity safeguard Short circuit diode
Numbers of MPP-tracker M1 (1 MPPT) / M3 ( 3 MPPT)
* possible input power is reduced at voltages lower than ... (VDC) 310 390 480
AC electrical specications
AC max. continuous output power [VA] , , 50,000
CE weighted e. [%] 97 97.5 97.5
AC nominal voltage / operating range L to Neutral (VAC) 480 / 243 to 304
AC Continuous output current (A) 480 / 600 38 48 60
Frequency nominal / range (Hz) 60 / 60.5 to 59.3
Power factor > .99
Total harmonic distortion % <5%
Standby losses (W) < 1.5
Internal consumption standbye (W) 30
Feed In Starts (W) 120
AC branch circuit protection Current limiting inverter, OCPD provided by branch
circuit breaker
AC input terminals and conductor 4 / 2-10 AWG AL CU
AC Maximum output fault current (A), RMS,
and duration ms
625 A (P-P), 18.25 A (RMS ), 36.5ms
Utility Connection H4 -Wye 4 wire (A,B,C,N)
Utility monitoring Country specic options
Table 1: Electrical data

Technical Data
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
PV system disconnect
Integrated AC/DC disconnect Yes
AC /DC disconnection means Rotary switch accessible from outside of enclosure
AC disconnection ratings 100 A VAC Break L1-L2-L3
AC LOTO Provision LOTO in OPEN
AC input terminals / conductor size L1-L2-L3 N PE / 4-10 AWG AL CU
DC disconnection ratings 150 A breaking positive and negative
DC Over current protection devices (OCPD) Not provided inside the inverter
DC LOTO Provision LOTO in OPEN
DC input terminals / conductor size per channel 1 Pos and 1 Neg / 6-24 AWG AL CU
Table 1: Electrical data
. Mechanical
Mechanical and environmental specications
Mechanical integration Ground mount
Enclosure construction Cast steel
Unit weight lbs / kg 381 / 173
Unit dimensions HxWxD In / mm 33 x 14 x 53.5/ 840 x 355 x 1360
Operating temp range (°F / °C) (-13 to 140 / -25 to 60) possible derating above 113 °F / 45 °C
Storage temp range (°F / °C) (-22 to 158 / -30 to 70)
Noise emissions <58 db(A)
Humidity % 0 to 95 non condensing
Enclosure rating Inverter / PV system disconnect NEMA 3R
Cooling Forced convection with variable speed fan
Altitude (ft / m) 8000 / 2400
Communications and user interface
User interface Graphical user interface with 3 LED status indicators
Connectivity Ethernet (Modbus (TCP IP)), USB, RS485, S0 output
Safety features and regulatory compliance
UL / IEEE / CSA / FCC UL 1741 2nd Ed 2010 / CSA C22.2No 107.1 /
IEEE 1547 / FCC Class B / UL1998
Fault signal relay Potential free normally open contact
Polarity safeguard Short circuit diode
CE conformity Yes
GFDI compliant with NEC 690.35 for use with
ungrounded PV system arrays.
UL1741 listed for residual ground fault current isolation monitor
and interrupter function.
Table 2: Mechanical data

Transportation and Delivery
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 Transportation and Delivery
. Delivery
Every inverter leaves our factory in proper electrical and mechanical condition. Special packaging ensures that the units
are transported safely. The shipping company is responsible for any transport damage that occurs.
.. Scope of delivery
• Inverters
• Housing covers: Cover plates right and left, cover
• Installation kit
• DC and AC isolator switches
• Connection set
• Documentation
. Transportation
WARNING
Impact hazard, risk of breakage to the inverter
›Pack the inverter securely for transport.
›Carefully transport the inverter using the built-in eyebolts.
1
2
1
Figure : Transportation of the inverter
Key
1 Eyebolts 2 Cover

Mounting the inverter
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
 Mounting the inverter
DANGER
Risk of fatal injury from re or explosions
Fire caused by ammable or explosive materials in the vicinity of the inverter can lead to serious injuries.
›Do not mount the inverter in an area at risk of explosion or in the vicinity of highly ammable materials.
CAUTION
Risk of burns from hot housing components.
Coming into contact with the housing can cause burns.
›Mount the inverter so that it cannot be touched unintentionally.
Installation space
• As dry as possible, climate-controlled, with the waste heat dissipated away from the inverter,
• Unobstructed air circulation,
• When installing the unit in a control cabinet, provide forced ventilation so that the heat is suciently dissipated,
• Close to the ground, accessible from the front and sides without requiring additional resources
• Protected from direct sunlight and moisture (rain) in outdoor areas,
• For easy operation, ensure during installation that the display is slightly below eye level.
Wall
• With sucient load-bearing capacity,
• Accessible for installation and maintenance,
• Made from heat-resistant material (up to °F/ °C),
• Flame resistant,
• Minimum clearances to be observed during assembly: see Figure  on page  and Figure  on page .
NOTE
Access by maintenance personnel for service
Any additional costs arising from unfavourable structural or mounting conditions shall be billed to the
customer.
CAUTION
Property damage due to gases that have an abrasive eect on surfaces when they come into con-
tact with
ambient humidity caused by weather conditions
The inverter housing can be severely damaged by gases (ammonia, sulphur, etc.) if it comes into
contact with ambient humidity caused by weather conditions.
If the inverter is exposed to gases, it must be mounted so that it can be seen at all times.
›Perform regular visual inspections.
›Immediately remove any moisture from the housing.
›Take care to ensure sucient ventilation of the inverter.
›Immediately remove dirt, especially on vents.
›Failure to observe these warnings may lead to inverter damage which is not covered by the KACO new
energy GmbH manufacturer warranty.

Mounting the inverter
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NOTICE
Power reduction due to heat accumulation.
If the recommended minimum clearances are not observed, the inverter may go into power regulation
mode due to insucient ventilation and the resulting heat build-up.
›Maintain minimum clearances.
›Ensure sucient heat dissipation.
B
A
A
C
A
Figure : Instructions for wall mounting Figure : Minimum clearances
Key
A horizontal distance between the two inverters / vertical dis-
tance between inverter and the ceiling
. In /  cm
B Distance in front 39.4 In / 100 cm
C Vertical distance to an additional inverter suitable for wall
mounting
27.6 In / 70 cm
CAUTION
Select a proper foundation conditions.
›Use only the supplied mounting parts.
›Only install inverter in an upright position.
›If you mount the inverter to a wall, only mount it to a vertical wall.

Mounting the inverter
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
CAUTION
Use suitable mounting parts.
›Use only the supplied mounting parts.
›Only install inverter in an upright position.
›If you mount the inverter to a wall, only mount it to a vertical wall.
29 / 735
52.3 / 1328
5.5 / 140
30.2 / 766.5
1.77 / 45
Figure : Drilling separation (in In/mm)
. Installing and securing the inverter
Drilling the holes
. Mark (x) drill holes on bottom.
. For additional wall mounting: Mark position of (x) drill holes on wall.
. Drill the holes.
. For additional wall mounting: countersink the anchor in the wall.
» Install and secure the inverter.
Securing the inverter
. Position the inverter above the drill holes.
. Use the four anchoring bolts to secure the inverter to the oor.
. For additional wall mounting: use the  screws to secure the inverter to the wall.
» Install the housing.

Mounting the inverter
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. Installing the DC and AC isolator switches
NOTE
To prevent damage to the DC and AC isolator switches during transport, both isolator switches are
enclosed with the unit in an installation bag.
Figure : Installing the DC and AC isolator switches
Key
1 DC and AC isolator switches 3 Screws (M4x8)
2 Sealing ring with ON / OFF label 4 Plain washer
Installing the DC and AC isolator switches
↻You have set up the unit and secured it.
. Open both door locks with a suitable slotted-head screwdriver. (Blade width ( mm) cf. ISO -)
. Slowly open the doors.
. Remove and open the installation bag containing the DC/AC isolator switches from the unit.
. Press the back of the DC/AC isolator switches to the intended opening of the doors so that the switch is pointing
down and the label "ON" is up.
↻The sealing ring with the label ON / OFF must be attached ush against the door wall.
. Place the screws with washers in the holes of the doors and start the threads of the isolator switch.
. Use a suitable cross- or slotted-head screwdriver to tighten the screws. (Tightening torque is . Nm)
. Check that the switch works and is sealed properly. (Protection class IP)
. Move the switch to the OFF position.
. Check the positioning of the switch for the DC/AC isolator switch and to make sure it is properly seated.
. Close doors slowly so that the switching bar is inserted directly in both isolator switch.
. Secure the door locks on the housing.
» Install the inverter.
2
1
3
4

Installing the inverter
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
 Installing the inverter
DANGER
Lethal voltages are still present in the terminals and cables of the inverter even after the inverter has
been switched o and disconnected.
Severe injuries or death may occur if the cables and terminals in the inverter are touched.
Only appropriately qualied and authorised electricians may open and install the inverter.
The inverter must be mounted in a xed position before being connected electrically.
›Observe all safety regulations and current technical connection specications of the responsible power
supply company.
›Disconnect the AC and DC sides.
›Secure both sides against being inadvertently switched back on.
›Ensure that the AC and DC sides are completely isolated and voltage free.
›Connect the inverter only after the aforementioned steps have been taken.
NOTICE
The doors can only be opened by switching o both DC/AC isolator switches and then unlocking both
door latches.
. Opening the connection area
Opening the connection area
↻You have mounted the inverter.
↻Switch the DC/AC isolator switches to OFF.
» Power has been disconnected from the unit.
. Open both door locks with a suitable slotted-head screwdriver.
. Slowly open the doors.
. Remove the cover of the connection area.
» Make the electrical connection.
. Drilling holes for electrical and interface connections
The Inverter is shipped with a connection board. You are required to drill holes into the board to accommodate the AC,
DC and interface connection leads.
To avoid interference between current-carrying leads and interface cables, adhere to the following drawings:
321
Figure : Connection board
Key
1 Connection area for AC leads 3 Connection area for DC leads
2 Connection area for interface and grounding leads

Installing the inverter
Page  Installation Instructions KACO blueplanet . TL / . TL / . TL
. Making the electrical connection
ACTIVITY
Cables to the AC and DC screw terminals must be re-tightened at regular intervals to the required torque.
Make the connection to the PV generator as well as the grid connection via the PCB terminals in the connection area of
the inverter. Note the following conductor cross-sections:
AC connection
(M1/M3)
DC connection
(M1)
DC connection
(M3)
Max. conductor cross-section without wire
sleeves
1 AWG / 50 mm² - 8 AWG / 10 mm²
Min. conductor cross-section with wire sleeves 3 AWG / 35 mm² - 8 AWG / 10 mm²
Max. conductor cross-section with cable shoe -0 AWG / 70mm² with
M8 ring cable lug
-
Length of insulation to be stripped o 0.944 In / 24 mm 0.984 In / 25 mm 0.984 In / 25 mm
Tightening torque 2.5-4 Nm 2.5 Nm 2.5 Nm
Fuses
Overvoltage conductor Built-in, type II



L1 L2 L3 N GR
Y3~+N 277/480V 60Hz PV- PV+ L1 L2 L3 N GR
Y3~+N 277/480V 60Hz



+ I- + I-
PV2
+ I-
PV1 PV3
Figure : Electrical connection (M Model) Figure : Electrical connection (M Model)
Key
1 AC connection terminals 3 DC connection terminals
2 N; Ground, (HOT,GND)
.. Connecting the inverter to the power grid
The power connection wires are connected to the AC terminal on the left of the connection area (see Figure  on page
).
DANGER
Risk of fatal injury due to electric shock
Severe injury or death will result if the live connections are touched.
›Switch o all power sources to the inverter before you insert the grid power cable into the unit.
›Make sure that the device is isolated from the public power supply and the system power supply before
starting work.

Installing the inverter
Installation Instructions KACO blueplanet . TL / . TL / . TL Page 
Recommended conductor cross-sections and fuse protection of NYM cables for xed wiring according to VDE 
part 
For cable lengths up to m, use the specied conductor cross-sections. Longer cable lengths require larger conductor
cross-sections.
Equipment types Conductor cross-sec-
tion
Fuse protection: gL safety fuses
32.0 - 40.0 TL3 5 AWG / 16 mm² 63 A
50.0 TL3 2 AWG / 35 mm² 100 A
Table 3: Recommended conductor cross-sections and fuse protection of NYM cables
NOTE
When selecting installation material, please consider the suitability of the product to the mains voltage.
NOTICE
The installation must be performed in accordance with NFPA  and Canadian electrician code part I and
additional local requirements.
NOTICE
Use copper conductors only.
NOTICE
When the line resistance is high (i.e. long grid-side cables), the voltage at the grid terminals of the inverter
will increase during feed-in to the grid. The inverter monitors this voltage. If it exceeds the country-specic
grid overvoltage limit value, the inverter switches o.
›Ensure that the conductor cross-sections are suciently large or that the cable lengths are suciently
short.
Prepare the grid connection
↻Drill a hole for the AC leads into the connection board.
. Remove the outer cladding of the AC leads.
. Insert the AC leads through the hole into the connection area through the conduit pipe.
. Strip the insulation from the AC leads.
. Open the locks of the PCB terminals.
. Connect the leads according to the labels on the PCB terminals.
. Close the locks of the PCB terminals.
. Check that all connected leads are tightly seated.
. The inverter is now connected to the power grid.
Making the grid connection
. Route L, L and L through the enclosed ferrite clip.
. Connect the cables in accordance with the label on the PCB terminals
(Figure  on page ).
. Connect the ground and N-terminal to the specied connection terminal.
Note the cable cross-sections.
. Check that all connected cables are securely tted.
. Tighten the cable tting.
L1 L2
GRN
L3
L1 L2 L3
Y3~+N 277/480V 60Hz
» The inverter is now connected to the power grid. Figure : Connection

Installing the inverter
Page  Installation Instructions KACO blueplanet . TL / . TL / . TL
.. Connecting the PV generator
Connect the PV generator on the right of the connection area (see Figure  on page ).
DANGER
Risk of fatal injury due to contact voltages.
›During installation: Electrically disconnect the DC positive and DC negative from the protective earth
(PE).
Removing the plug connection without rst disconnecting the inverter from the PV generator may lead to
injuries and damage the inverter.
›Disconnect the inverter from the PV generator using the integrated DC isolator switch.
›Remove the plug connector.
NOTE
Connected PV modules must be dimensioned for the DC system voltage in accordance with IEC 
Class A, but at least for the value of the AC grid voltage
... Before connecting
Ensure that there is no ground fault
. Determine the DC voltage between the
–protective earth (PE) and the positive cable of the PV generator,
–protective earth (PE) and the negative cable of the PV generator
are identied.
If stable voltages can be measured, there is a ground fault in the DC generator or its wiring. The ratio between the
measured voltages gives an indication as to the location of this fault.
. Rectify any faults before taking further measurements.
. Determine the electrical resistance between the
–protective earth (PE) and the positive cable of the PV generator,
–protective earth (PE) and the negative cable of the PV generator
are identied.
In addition, ensure that the PV generator has a total insulation resistance of more than . mOhm, since the inverter will
not feed in if the insulation resistance is too low.
. Rectify any faults before connecting the DC generator.
NOTICE
The threshold value from which the insulation monitor reports a fault can be set in the "Parameter" menu.
... Connecting the PV generator
DANGER
Risk of fatal injury due to electric shock
Severe injury or death will result if the live connections are touched. When there is sunlight present, there is
DC voltage on the open ends of the DC cables.
›Do not touch the exposed ends of the cables.
›Avoid short circuits.