Solar Energy Systems - fujitsu.com

1 fujitsu relays for Solar applicationsDC voltage versions - AC voltage versions - Latching versionsRELAYSS olar EnergySystemsFUJITSU COMPONENTSCONTENTSFTR-J2 Page 2 FTR-K2W Page 3 FTR-F4G Page 4 FTR-K2G Page 5 FTR-K3-WG Page 6 fujitsu Solar relays for a sunny future Page 1 RELAY PRODUCT LINE UP - Solar Energy SYSTEMSPRODUCT LINE-UPFTR-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 Page 1 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UP Solar Energy SYSTEMSS olar Energy systemsRelaysFujitsu Components recognizes the value and importance of protecting the global environment and strives to contribute to the creation of a sustainable environment for future only does fujitsu endeavours to reduce the environmental impact of the

2 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 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 Solar relays for a sunny futurePage 2 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UP DC power RELAYS - FTR-J2 FTR-J2 Ultra small high voltage DC relayThe 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 the fact that the FTR-J2 relay dimensions are relatively small, (the relay measures just 24mm (L) x (W) x 27mm (H)), the FTR-J2 relay is capable of switching 450 be able to switch high DC voltages in these small dimensions, fujitsu has designed two strong permanent magnets in the relay.

3 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 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 2x200 VDC and in a configuration switching 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 4,000 VAC and 10,000V surge examples Solar Systems Battery powered equipment UPS Wireless base stations Fuel CellsPage 3 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UPDC power RELAYS - FTR-K2 WFTR-K2 WDC relay with mm contact gapThe special feature of the FTR-K2W DC relay is its big contact gap.

4 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 relay is capable of switching 60V DC, 30A. The high insulation that the FTR-K2W offers, is shown in the relay sinsulation clearance > > , the 5,000 VAC dielectric strength and the surge strength of 5, 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. Application examples Solar converters/panels Battery powered equipment Base stations (Wimax) UPSPage 4 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UPAC power RELAYS - FTR-F4 GFTR-F4 GRelay with contact gapAfter introducing fujitsu s DC power relay line-up focused on Solar Energy Systems , the coming fivepages will highlight the AC relays.

5 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 in line is the FTR-F4G, its main special feature is the contact gap of 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 at each pole. For Systems that provide full galvanic isolation; two relay contacts are FTR-F4G has a 2 form A contact configuration. Its switching capability of 250 VAC, 5A makes the relay most suitable for the Solar Energy system type with low power requirements. The relay contact has TV3 inrush examples Solar power system/inverters power generation Systems UPS Home appliances Office equipment Page 5 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UPAC power RELAYS - K2 GFTR-K2 GPower relay with wide contact gapFujitsu present the FTR-K2G.

6 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 440 VAC. 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 100 VDC 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).

7 Application examples Photovoltaic inverters Washing machines Tumble dryers Home entertainment Systems Saunas Industrial power supplies Copiers (inter lock circuit)Page 6 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UPAC power RELAYS - K3-WGFTR-K3-WGFTR-K3 relay with wide contact gapFujitsu FTR-K3-WG features a wide contact gap of With this contact gap the relay complies with the DIN standard VDE 0126-1-1 for integration in Solar Energy 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, 250 VAC. Because of its high power the relay is recommended for the larger Solar inverter Systems .

8 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 > / creepage > , a dielectric strength of 5,000 VAC and 8,500V surge examples Solar Energy Systems Printers Copy machines OA machines power supply Inter-lock functions (IEC60950-1 . contact gap)Page 7 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsThe 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 as the FTR-K3-WG Solar relay the -PV version of this series has a contact gap of (complying with the DIN standard VDE 0126-1-1 for integration in Solar Energy Systems ).

9 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 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 examples Solar Energy Systems Printers Smart meters power supply Copy machines RELAY LINE-UPAC power RELAYS - FTR-K3-PVFTR-K3-PV32A high contact current relayIn 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 .

10 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 FTR-K3L-WG: Also the FTR-K3-WG is now available in a dual coil latching version. This contact gap relay has a contact rating of 25A/250 VAC and can handle a carry current up to relays feature a big contact gap which qualify them to be suitable for Solar Energy applications according the DIN safety standard VDE relays offer low power consumption and low heat generation. An Energy saving latching relay is cost efficient and at the same time examples Solar power system/inverters power generation Systems UPS Home appliances Office equipment Page 8 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UPAC power LATCHING RELAYS FTR-K3 LATCHING RELAYSEco-friendly & Energy saving relays Page 9 of 16 fujitsu Components Relay Product Line-upSolar Energy SystemsRELAY LINE-UP SPECIFICATIONItemSeries nameDCFTR-J2 FTR-K2 WContactArrangementGapRating (NO)Rating (NC)Continuous currentMax.