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Protecting, Switching and Disconnecting in Photovoltaic Systems.

Product Information AC/DC switching and protection devices

Photovoltaic swit

chgear. From small houses to large-scale systems.

Actively shape the future with safe photovoltaic systems.
Photovoltaic power plants convert sunlight directly into electrical energy. Photovoltaic cells are used for this purpose. Photovoltaic power is a renewable energy source which is used primarily in domestic and public buildings as well as open spaces. A differentiation is made between grid-independent systems and systems coupled to the power grid. Power grid coupled photovoltaic systems feed the generated power directly into the electrical grid. There is no need for sophisticated intermediate storage. A system of this type consists of photovoltaic cells, one or more inverters and switchgear for operation, maintenance and protection in the event of a fault. This is why photovoltaic systems coupled to the grid require very reliable and safe individual components.

Reliable grid disconnection devices
Inverters convert the DC current from the photovoltaic cells to AC current. The frequency and voltage characteristics are adapted to those of the public power grid. Reliable protection and main switches ensure safe operation. Moeller offers the right solutions here: For integrated or external mains switches, for manual or automated operation on the DC current as well as on the AC current levels.

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Moeller offers comprehensive protection for photovoltaic systems
Minute currents from photovoltaic or solar cells can be combined in photovoltaic systems to ever larger currents. All current magnitudes need to be isolated, protected and switched. The switchgear needs to be enclosed both in sections and in large switchboards. Moeller offers a comprehensive range of switchgear, enclosures and switchboards for all these applications, ranging from building services right up to the large photovoltaic systems.

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RCD RCD

DC string circuit-breaker
In addition to fuses protection of photovoltaic modules is provided by string circuit-breakers. String circuit-breakers protect photovoltaic modules from fault currents. For example, in large systems they prevent regeneration from intact modules to modules with a short-circuit. Their advantage over fuses is that they are immediately ready for use after a trip, and when the cause of the trip has been remedied. Moeller offers both fuse-switch disconnectors as well as string circuit-breakers. String circuit-breakers are not enclosed and intended for installation in customized generator connection enclosures. They can be combined when necessary with other components such as side-by-side terminals or overvoltage protection devices. The trip currents for the string circuit-breaker can be set over a wide range.

DC switch disconnectors
The VDE 0100-712 (June 2006) standard stipulates the use of a switch-disconnector between the photovoltaic module and the inverter. Moeller provides enclosed and open switch-disconnectors for voltages up to 1000 V DC. They can be used to establish separate switching points as demanded by the VDI standard VDI 6012, so that for example, a defective inverter can be safely disconnected. All switch-disconnectors switch on two poles and are thus suitable for unearthed systems. And all switches are of course certified by the T?V.

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Safe disconnection and protection of solar panels.
DC switch disconnectors

Compact disconnectors for inverters
Moeller offers both enclosed and open switch-disconnectors. Open switch-disconnectors P-SOL are intended for customized enclosures or inverters. They are attached on 35 mm top-hat rails; their terminations facilitate connection of all conventional conductor types. Separate rotary handles and shaft extensions enable flexible installation. An auxiliary contact block for indication of the switch state can be attached. A shunt release module is available for remote tripping.

Perfectly enclosed for outdoor installation
Switch-disconnectors SOL in enclosures are ready to install. Connection variants for 2 and 4, or 4 and 8 strings as well as for the most commonly available connector types such as MC3, MC4 or metric cable glands, ensure problem-free integration in different system concepts. The enclosure is implemented to degree of protection IP65 and thus facilitates outdoor installation. Locking capabilities offer protection during service. A pressure equalization element prevents collection of condensation and thus malfunctions due to flash-overs.

DC string circuit-breaker

Disconnector with integrated short-circuit protection
The fuse-switch disconnector C10-FD for cylindrical fuse cartridges Z-C 10/SE .. PV of fuse size 10 x 38, protects photovoltaic modules against short-circuit currents. At the same time measurements can be made on the connected modules at the disconnection point.

String circuit-breaker with remote de-energization
String circuit-breakers PKZ-SOL are the fuseless alternative for the protection of photovoltaic modules against short-circuit. With their variable trip range that can be optimally adjusted to the actual short-circuit current of a string. A thermal release triggers at 1.05 … 1.3 fold current and the magnetic release at 6-fold current. Using the optional shunt release A-PKZ0, remote switching, for example, for the fire brigade is possible. The easy to fit auxiliary switch NHI-E-PKZ0 provides switch state information.

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High level of flexibility through comprehensive accessory range
Switch-disconnectors N in the special version for up to 1000 V DC can be used on 1- or 2-poles. The comply with the isolation properties even for earthed IT networks. Accessories, such as connection terminals and door coupling rotary handles enable individual installation in the most varied of distribution systems. Auxiliary switches, voltage releases and remote operators facilitate signalling and automation.

Safely master short-circuit currents up to 70 kA
Circuit-breakers NZM with thermo-magnetic overload and shortcircuit release are used for the protection of DC systems. They can safely switch off up to 750 V at short-circuit currents of up to 70,000 A. A complete range of accessories is provided just as with the switch-disconnector N.

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Moeller switchgear for control, switching and protection of photovoltaic systems.
AC switchgear for systems

Circuit-breakers NZM
Four switches with switching performance overlaps, from the attractively-priced 25 kA for small distribution boards ranging up to 150 kA switching performance for complex high-energy systems, present a comprehensive range for energy distribution applications in the photovoltaic field up to 1600 A. Continuity with the same function, mounting and handling for switches and accessories are features of the new series in a compact design. The comprehensive range of accessories leaves no requirement unfulfilled.

CI insulated enclosure
The weather-proof CI enclosures with enhanced degree of protection IP 65 are ideal for outdoor installation. Several strings are compiled and protected with individual fuses in a generator connection enclosure.

The clever control relay
The proven easy500, easy700 and easy800 control relays come with a full range of technical resources to implement control function applications in photovoltaic systems. Such as the control of solar panels relative to the position of the sun. These control relays are a universal system with common software and operation. A host of different device versions with various functions, voltage types, expansion and networking options are available for implementing the right solution.

Contactors DIL: Efficient motor switching.
Moeller contactors are the first choice when remote switching of motors and other loads is required. High levels of reliability, proven range of accessories and user-friendly terminations are just a few features of Moeller contactors. Low power consumption DC and AC magnetic drives and double box terminals to safely wire different conductor cross-sections are just two examples of these features. Seven sizes cover the power range up to 2600 A. Moeller also offers 4-pole contactors up to 800 A.

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xEnergy energy distribution systems
The new xEnergy switchgear system is designed to ensure that your photovoltaic-related projects are efficiently designed from the planning phase right up to the construction and assembly phases. Ideal prerequisites for building services infrastructure up to 4000 A. Type-tested components combine to a technical and economical unit consisting of switchgear, mounting systems, enclosures as well as the tools/service. The new system is designed as a modular system and can be intelligently combined. Not only do you save time, but money and space as well. You also put your trust in certified safety from Moeller.

Xpole
Xpole circuit-breakers offer your customers maximum protection. The products of the Xpole series combine all the function, mounting and safety benefits. They can be quickly and easily installed. Intelligent construction design solutions which exclude any mounting errors guarantee high levels of safety during installation. The devices guarantee the end users not only protection for personnel (residual-current circuit-breaker) but also protection of the electrical system (overvoltage protection switch, miniature circuit-breaker). The product range is rounded off by a comprehensive range of intelligent switchgear such as remote switches, reset devices, etc. 7

Safety and comfort for the building.
AC switchgear for buildings

Miniature circuit-breakers
Whether its plug-in terminals or screw connections. Moeller has the right circuit-breakers for domestic as well as for industrial applications. A comprehensive range of accessories such as auxiliary switches, shunt releases, reset devices and clever busbar solutions facilitate a host of applications and automation solutions.

Residual current circuit-breakers
The comprehensive Moeller residual current circuit-breaker series enables - depending on the application – optimum fault current protection or even personnel protection in an electrical system. Surge current protected designs prevent unwanted shutdown and selective types facilitate discriminative shutdown of the defective system section.

Distribution boards
From service distribution boards, to the meter cabinet, to the energy distribution and the data network cabinet, Moeller offers a fully comprehensive product range. Thus all of your applications can be covered for the infrastructure in domestic, purpose-built and industrial energy distribution applications.

Comfort, safety and energy management – wireless house automation from Moeller
Automation tasks such as illumination management, shading control, monitoring and warning of dangers as well as energy efficient control concepts for heating, ventilation and air-conditioning are easy with Moeller products, and simple to implement.

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Surge protection devices
Dangers to electrical systems by lightning and overvoltage’s are made safe by Moeller surge protection devices. The comprehensive product range offers protection to the end user. Easily fitted auxiliary switches facilitate monitoring of the functionality of the surge protection device.

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Technical data

DC switch disconnectors
Construction design Rated operational current Ie at DC21A (A) Rated operational voltage Ue (VDC) Number of poles Type designation Part no. DC inputs Number of strings Connection type DC outputs Poles Connection type Dimensions Width (mm) Height (mm) Depth (mm) 58,2 92,4 75,3 55 140 160 100 214 130,5 1 MC3 1 MC3 1 MC4 1 MC4 1 M16 1 MC3 1 MC3 1 MC4 2 MC3 4 MC3 2 MC4 4 MC4 2 M12 2 MC3 4 MC3 2 MC4 open 20 30 63 enclosed 20 1000 2 P-SOL30 120935 P-SOL60 120936 SOL20/ 2MC3 120913 SOL20/ 4MC3 120914 SOL20/ 2MC4 120915 SOL20/ 4MC4 120916 SOL20/ 2MV 120919 SOL30/ 2MC3 120920 SOL30/ 4MC3 120921 SOL30/ 2MC4 120922 30

1000 in enclosures with protection class II 2 P-SOL20 120934

DC (string) circuit-breaker
Construction design Rated current In (A) Rated operational voltage Ue (VDC) Number of poles Type designation open 20 1000 in enclosures with protection class II 1 C10-FD/ 20/1 119024 2 C10-FD/ 20/2 119025 1 C10-FD/ 20/1-L 119026 2 C10-FD/ 20/2-L 119027 6 1 Z-C10/ SE-6A/ PV 122009 8 1 Z-C10/ SE-8A/ PV 122070 10 1 Z-C10/ SE-10A/PV 122071 16 1 Z-C10/ SE-16A/PV 122072 20 1 Z-C10/ SE-20A/PV 122073 900 with fuse-switch disconnector CD-FD 2 PKZSOL12 120937 open 12

Part no. Fuse size Overload release Short-circuit current trip Dimensions Width (mm) Height (mm) Depth (mm)

10 x 38 to IEC 60269, UL284-4

10 x 38 to IEC 60269, UL284-4 I-t characteristic for photovoltaic application

17.5 83.3 64

35.6 83.3 64

17.5 83.3 64

35.6 83.3 64

10.3 38 10.3

10.3 38 10.3

10.3 38 10.3

10.3 38 10.3

10.3 38 10.3

58.2 92.4 75.3

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open 63 160 1000 2 SOL30/ 4MC4 120923 4 MC4 1 MC4 SOL30/ 2MV 120926 2 M12 1 M16 SOL60/ 4MC3 120927 4 MC3 1 M20 160 300 215 SOL60/ 8MC3 120928 8 MC3 1 M20 SOL60/ 4MC4 120929 4 MC4 1 M20 SOL60/ 8MC4 120930 8 MC4 1 M20 SOL60/ 4MV 120933 4 M12 1 M20 N2-4-160 -S1-DC 127732 140 184 149 185 275 166 280 401 (613 incl. connection kit 1400A 65°C) 207 N2-4-200 -S1-DC 127733 N3-4-320 -S1-DC 127734 N3-4-450 -S1-DC 127735 N4-4-800 -S1-DC 119890 N4-4-1000 N4-4-1250 N4-4-1400 -S1-DC -S1-DC -S1-DC 119891 119886 119887 200 320 450 800 1000 1250 1400

open 20 30 40 50 63 80 500 2 PKZSOL20 120938 6 x In 55 140 160 PKZSOL30 120939 PKZSOL40 120940 PKZSOL50 120941 PKZSOL60 120942 NZMN1 -A80 259084 6 … 10 x In 90 145 84.5 105 184 149 140 275 166 NZMN1 -A100 259085 NZMN1 -A125 259086 NZMN2 -A160 259092 NZMN2 -A200 259093 NZMN2 -A250 259094 NZMN3 -A320 109669 NZMN3 -A400 109670 NZMN3 -A500 109671 100 125 160 750 200 250 320 400 500 1000 in enclosures with protection class II

1.05 … 1.3 x In

1.05 … 1.3 x In

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Moeller addresses worldwide: www.moeller.net/address E-Mail: info@moeller.net Internet: www.moeller.net www.eaton.com
Issued by Moeller GmbH Hein-Moeller-Str. 7-11 D-53115 Bonn ? 2008 by Moeller GmbH Subject to alterations W7400-7610 en ip 04/08 Printed in Germany (04/08) Article No.: 125955

Eaton’s electrical business is a global leader in electrical control, power distribution, uninterruptible power supply and industrial automation products and services. Eaton’s global electrical brands, including Cutler-Hammer?, MGE Office Protection Systems?, Powerware?, Holec?, MEM?, Santak and Moeller, provide customer-driven PowerChain Management? solutions to serve the power system needs of the industrial, institutional, government, utility, commercial, residential, IT, mission critical and OEM markets worldwide. www.eaton.com


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