OMRON’s electronic and mechanical component business division has announced the global launch of its high-power PCB relay– G9KA.
This product improves the power generation efficiency of PV generation systems by minimizing energy loss caused by the heat generated by power conditioners, power supply equipment, and related equipment used in solar power generation systems.
The ultra-low contact resistance of 0.2mΩ suppresses the heat generated by the relay and improves the power generation efficiency of solar power generation systems, thereby accelerating renewable energy deployment and contributing to the realization of a decarbonized society.
Relays are components used for executing ON/OFF control of the electric current flowing through the equipment when linked with the power system, and for safety shut-off in an emergency.
Heat generation causes energy loss
Power generation facilities using renewable energy, such as solar power, generate energy loss due to the heat generated by the equipment during power generation, and the capacity and current of the facilities and equipment are increasing. Therefore, countermeasures against heat generation have become an urgent issue.
One of the factors that can cause the equipment to generate heat is the relays mounted on the PC board inside the equipment. Conventional high-power relays have a high contact resistance value, so energy loss due to heat generation has been an issue.
There were cases where heat dissipation mechanisms such as heatsinks and cooling fans had to be installed inside the equipment as a countermeasure against heat generation, and cases where the deterioration of the PC board due to the heat generated by the relay led to a decrease in the durable years of the equipment.
Temperature reduction with G9KA
The G9KA can reduce the temperature rise of the relay about 30 per cent compared with conventional high-power relays, by lowering the contact resistance to the industry-leading 0.2 mΩ
This product helps to reduce the size and weight of equipment by simplifying the heatsink and cooling fan that were installed as a countermeasure against heat generation. In addition, suppressing the heat generated by the relay leads to a reduction in the temperature rise of the PC board, thereby contributing to the longevity of the equipment.
Main applications
Main applications of G9KA include: power conditioners for solar power generation, EV quick chargers, robot control equipment, storage batteries (UPS), industrial coolers, etc.
