RELAYS Solar Energy Systems

RELAYS Solar Energy Systems FUJITSU COMPONENTS CONTENTS Fujitsu relays for solar applications DC voltage versions - AC voltage versions - Latching versions RELAY PRODUCT LINE UP - SOLAR ENERGY SYSTEMS Fujitsu solar relays for a sunny future Page 1 PRODUCT LINE-UP FTR-J2 Page 2 FTR-K2W Page 3 FTR-F4G Page 4 FTR-K2G Page 5 FTR-K3-WG Page 6 FTR-K3-PV Page 7 FTR-K3 latching relays Page 8 Specification overview Page 9 New developments Page 13 Specification - new developments Page 14 Solar energy system - relay integration Page 15 Contact details Page 16

SOLAR ENERGY SYSTEMS DC POWER RELAYS - FTR-J2 Solar energy systems Relays FTR-J2 Ultra small high voltage DC relay Fujitsu Components recognizes the value and importance of protecting the global environment and strives to contribute to the creation of a sustainable environment for future generations. Not only does Fujitsu endeavours to reduce the environmental impact of the products throughout the product lifecycle, but also designs its products for integration in environment improving appliances. Fujitsu Components product range contains power relays that are highly recommended to be used in solar energy systems. With its current relay product range Fujitsu Components Europe has the opportunity to provide multiple solutions for solar energy systems. Fujitsu s solar relays have two target functions within the solar converter. The DC relays, to switch the DC voltage generated by the solar panel, and the AC relays with big contact gap, to switch the generated electricity to the power grid to provide the necessary safety circuit-break-function. This guide gives an overview of Fujitsu s relay product line up applicable for solar energy systems and its key features. The FTR-J2 is one of Fujitsu s DC relays suitable to be integrated in the solar converter to switch the DC voltage and current generated by the solar panel. Despite the fact that the FTR-J2 relay dimensions are relatively small, (the relay measures just 24mm (L) x 23.5mm (W) x 27mm (H)), the FTR-J2 relay is capable of switching 450VDC/10A. To be able to switch high DC voltages in these small dimensions, Fujitsu has designed two strong permanent magnets in the relay. This magnetic provision is installed to safely extinguish the severe breaking arc occuring when breaking high DC currents. The FTR-J2 is the powerful, compact and reliable solution for solar appliances that need to switch high DC voltage and current. The FTR-J2 is a 2 Form A relay that can be used in two different configurations. It can be used in a circuit configuration switching 2x200VDC and in a configuration switching 1x450VDC. The FTR-J2 can handle an inrush current of 150A (capacitive load). It offers high insulation between contacts and coil with an insulation distance of clearance/creepage > 6mm, a dielectric strength of 4,000VAC and 10,000V surge strength. Fujitsu solar relays for a sunny future Solar systems UPS Fuel Cells Battery powered equipment Wireless base stations Page 1 of 16 Page 2 of 16

DC POWER RELAYS - FTR-K2W AC POWER RELAYS - FTR-F4G FTR-K2W DC relay with 2x3.2 mm contact gap FTR-F4G Relay with 1.5mm contact gap The special feature of the FTR-K2W DC relay is its big contact gap. This double contact relay is designed with a total contact gap of > 6mm. The FTR-K2W enables remote switching and emergency cut-off of the solar panel. The relay is capable of switching 60V DC, 30A. The high insulation that the FTR-K2W offers, is shown in the relay s insulation clearance >8.0mm/creepage >9.5mm, the dielectric strength and the surge strength of. Like the FTR-J2, the FTR-K2W can be integrated in the solar converter to cut off/pass the DC current. The very big contact gap and powerful switching capabilities classify this relay among the safest DC power relays. After introducing Fujitsu s DC power relay line-up focused on solar energy systems, the coming five pages will highlight the AC relays. These AC relays within Fujitsu s product line-up are recommended to be integrated in the solar converter as a switch to safely disconnect the inverter from the power grid. Fujitsu offers single side stable and latching type versions. First in line is the FTR-F4G, its main special feature is the contact gap of 1.5mm. According to the DIN safety standard VDE 0126-1-1 the circuit break function between the solar converter and the power grid must have a contact gap 1.5mm at each pole. For systems that provide full galvanic isolation; two relay contacts are needed. The FTR-F4G has a 2 form A contact configuration. Its switching capability of, 5A makes the relay most suitable for the solar energy system type with low power requirements. The relay contact has TV3 inrush capability. Solar converters/panels Base stations (Wimax) Battery powered equipment UPS Solar power system/inverters UPS Office equipment Power generation systems Home appliances Page 3 of 16 Page 4 of 16

AC POWER RELAYS - K2G AC POWER RELAYS - K3-WG FTR-K2G Power relay with wide contact gap FTR-K3-WG FTR-K3 relay with wide contact gap Fujitsu present the FTR-K2G. The relay has a contact separation of more than 3mm which provides a safe power switching between the main power lines and the equipment providing full disconnection. The insulation distance between coil and contacts with a creepage of >8mm offers reinforced insulation. The FTR-K2G features a 1 form A contact and is capable of switching 5000VA with a max switching voltage of 440VAC. The relay has a high contact capacity of 20A. This powerful relay is recommended for the larger solar panel systems. Further more the FTR-K2G has a contact with TV8 inrush capability. The coil voltage ranges from 5 to 100VDC with a dissipation of 1W. The FTR-K2G relay has been designed based on the need of protection against hazards such as electrical, mechanical, thermal and fire of appliances when operated (complies with IEC 60335-1). Photovoltaic inverters Washing machines Tumble dryers Home entertainment systems Saunas Industrial power supplies Copiers (inter lock circuit) Fujitsu FTR-K3-WG features a wide contact gap of 1.5mm. With this contact gap the relay complies with the DIN standard VDE 0126-1-1 for integration in solar energy appliances. The FTR-K3-WG is highly recommended to be part of the inverter function as a switch between the converter and the power grid. Compared to the early mentioned FTR-F4G relay, the FTR-K3-WG has a higher contact rating; 25A,. Because of its high power the relay is recommended for the larger solar inverter systems. The FTR-K3-WG can handle a carry current of 25A. It offers high insulation between contacts and coil with an insulation distance of clearance > 6.5mm / creepage > 9.5mm, a dielectric strength of and 8,500V surge strength. Solar energy systems Copy machines Power supply Printers OA machines Inter-lock functions (IEC60950-1.1.0mm contact gap) Page 5 of 16 Page 6 of 16

AC POWER RELAYS - FTR-K3-PV AC POWER LATCHING RELAYS FTR-K3-PV 32A high contact current relay FTR-K3 LATCHING RELAYS Eco-friendly & energy saving relays The FTR-K3-PV can classify itself among the Fujitsu relays that are suitable for integration in solar energy systems. This AC power relay stands out through its high contact current of 32A. Same as the FTR-K3-WG solar relay the -PV version of this series has a contact gap of 1.5mm (complying with the DIN standard VDE 0126-1-1 for integration in solar energy systems). The surge strength between coil and contacts of this relay is 6,000V. The dielectric strength between open contacts is 2,500V/1 min. and 4,000V/1 min. between coil and contacts. The relay has a coil power consumption of 1,200mW. The coil holding voltage of the FTR-K3-PV can be reduced to 45% of the nominal coil voltage (ambient temp. +85 C, contact current 32A). The coil holding voltage contributes to energy saving of the application when using PWM coil drive. In an answer to the market demand for latching relays, Fujitsu released several new types. The FTR-K3 series have been expanded with two latching versions suitable for solar energy systems, in order to save energy. FTR-K3L-PV: The earlier mentioned FTR-K3-PV relay is now available as a dual coil latching version. The relay offers a 32A high contact current and has a contact gap of 1.5mm. FTR-K3L-WG: Also the FTR-K3-WG is now available in a dual coil latching version. This 1.5mm contact gap relay has a contact rating of 25A/ and can handle a carry current up to 30A. Both relays feature a big contact gap which qualify them to be suitable for solar energy applications according the DIN safety standard VDE 0126-1-1. Solar energy systems Smart meters Copy machines Printers Power supply Latching relays offer low power consumption and low heat generation. An energy saving latching relay is cost efficient and at the same time eco-friendly. Solar power system/inverters UPS Office equipment Power generation systems Home appliances Page 7 of 16 Page 8 of 16

SPECIFICATION SPECIFICATION Item FTR-J2 Series name DC FTR-K2W Item FTR-F4G Series name AC FTR-K2G Contact Coil Life Arrangement Gap Rating (NO) Rating (NC) Continuous current Max. switching voltage Max. switching power Nominal power Nominal voltage Operate voltage Ambient temperature Mechanical Electrical (at rating) Insulation (at 500Vdc) Dielectric strength PC board layout Open contacts Adjacent contacts Coil - contacts 1 form A 2 form A 1 form A 2.0mm 1.0mm 6.0mm 10A / 450VDC 10A / 200VDC 30A / 60VDC - 12A 12A 30A 450VDC 200VDC 72VDC 4,500W 2,000W 1,800W 1.06W 0.53W 2.00W 5... 110V 5... 110V 5... 48V 70% of nominal 70% of nominal 65% of nominal -40 - +85 C -40 - +85 C -40 - +70 C 2,000,000 ops. 2,000,000 ops. 1,000,000 ops. 10,000 ops. 10,000 ops. 10,000 ops. 1,000VAC 1,000VAC 2,000VAC - 1,000VAC - 4,000VAC 4,000VAC Contact Coil Life Arrangement Gap Rating (NO) Rating (NC) Continuous current Max. switching voltage Max. switching power Nominal power Nominal voltage Operate voltage Ambient temperature Mechanical Electrical (at rating) Insulation (at 500Vdc) Dielectric strength PC board layout Open contacts Adjacent contacts Coil - contacts 2 form A 1 form A 1.5mm 3.0mm 5A / 20A / 5A 25A 400VAC 400VAC 1,250VA 0.80W 1.10W 5... 48V 5... 110V 75% of nominal 65% of nominal -40 - +70 C -40 - +70 C 500,000 ops. 1,000,000 ops. 100,000 ops. 100,000 ops. 1,000VAC 2,000VAC 3,000VAC - Dimensions mm (WxLxH) 24.0x23.5x27.0 34.9x36.5x30.2 Dimensions mm (WxLxH) 28.7x12.7x25.2 35.0x16.0x28.0 Page 9 of 16 Page 10 of 16

SPECIFICATION SPECIFICATION Item FTR-K3-WG Series name AC FTR-K3-PV Item FTR-K3L-WG Series name AC FTR-K3L-PV Latching relays Contact Coil Life Arrangement Gap Rating (NO) Rating (NC) Continuous current Max. switching voltage Max. switching power Nominal power Nominal voltage Operate voltage Ambient temperature Mechanical Electrical (at rating) Insulation (at 500Vdc) Dielectric strength PC board layout Open contacts Adjacent contacts Coil - contacts 1 form A 1 form A 1.5mm 1.5mm 25A / 32A / 25A 32A 6, 8,000VA 0.78W 1.20W 5... 48V 5... 48V 70% of nominal 70% of nominal -40 - +85 C * 1-40 - +85 C * 2 2,000,000 ops. 1,000,000 ops. 100,000 ops. 30,000 ops. 4,000VAC Contact Coil Life Arrangement Gap Rating (NO) Rating (NC) Continuous current Max. switching voltage Max. switching power Nominal power Nominal voltage Operate voltage Ambient temperature Mechanical Electrical (at rating) Insulation (at 500Vdc) Dielectric strength PC board layout Open contacts Adjacent contacts Coil - contacts 1 form A 1 form A 1.5mm 1.5mm 25A / 32A / 25A 32A 6,250VA 8,000VA 0.9W 1.20W 5... 24V 5... 24V 80% of nominal 80% of nominal -40 - +85 C -40 - +85 C 1,000,000 ops. 1,000,000 ops. 100,000 ops. 30,000 ops. 4,000VAC Dimensions mm (WxLxH) Dimensions mm (WxLxH) * 1 Coil holding voltage when 40 to 80% of nominal coil voltage is applied. * 2 Coil holding voltage when 45 to 80% of nominal coil voltage is applied. Page 11 of 16 Page 12 of 16

AC POWER RELAYS - NEW DEVELOPMENTS SPECIFICATION Solar relays New developments Item FTR-K3-WS Series name AC FTR-K3-PS Through continued research and development Fujitsu keeps expanding its product range. Fujitsu listens to the needs and requirements of the market, together with its wealth of knowledge and experience Fujitsu knows how to develop solutions accordingly to today s solar market requirements. Fujitsu s new developments suitable for solar energy systems Fujitsu developed two new versions of the FTR-K3 series; the FTR-K3-WS and the FTR-K3-PS. FTR-K3-WS This high capacity 25A relay has a special feature with a contact gap of 1.8mm (complies with IEC62109-2*). The relay provide a low coil power consumption of 1,200mW and offers a mechanical life of min. 100k operations. FTR-K3-PS This relay is also equipped with a contact gap of 1.8mm. Beside this wide contact that complies with the IEC62109-2* for integration in solar energy systems provides the FTR-K3-PS a contact current of 32A (coil power is 1,200mW). Page 14 of this booklet shows more specifications of the FTR-K3-WS and FTR-K3-PS. * IEC62109-2: Per the IEC62109-2 table 12 of part I, the impulse transient over voltage withstand rating for a relay switching the AC side of a 1000Vdc PV is 4464V. This means a clearance of 3.58mm air gap is necessary. For fail safe reasons, it is necessary to divide the air gap between 2 similar relays providing a total air gap of 3.58mm. Contact Coil Life Arrangement Gap Rating (NO) Rating (NC) Continuous current Max. switching voltage Max. switching power Nominal power Nominal voltage Operate voltage Ambient temperature Mechanical Electrical (at rating) Insulation (at 500Vdc) Dielectric strength PC board layout Open contacts Adjacent contacts Coil - contacts 1 form A 1 form A 1.8mm 1.8mm 25A / 32A / 25A 32A 8,000VA 8,000VA 1,200mW 1,400mW 5... 48V 5... 48V 70% of nominal 70% of nominal -40 - +85 C -40 - +85 C 100,000 ops. 100,000 ops. 30,000 ops. 30,000 ops. 4,000VAC Dimensions mm (WxLxH) Page 13 of 16 Page 14 of 16

SOLAR SYSTEM RELAY APPLICATION CONTACT DETAILS SOLAR ENERGY SYSTEM Integration of Fujitsu relays More information Contact details Photovoltaic inverter Over the years Fujitsu Components has made its name on the component and device market with a complete product line-up adapted to the requirements of the market. Fujitsu Components product experts have built a wealth of knowledge through their years of experience. They are pleased to share their knowledge and offer technical support. Would you like to know more about Fujitsu relays suitable for solar energy systems? Contact Fujitsu via telephone at +31 (0)23 556 0910 or by email info@fceu.fujitsu.com. Visit emea.fujitsu.com/components to download relay datasheets. Micro-inverter Page 15 of 16 Page 16 of 16

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