Omron Power Relays for Renewable Energy Systems
Omron, a leading global manufacturer specializing in sensing and control technology, delivers cutting-edge solutions that drive advancements in energy-related equipment. We provide innovative components that are crucial for building reliable and efficient energy systems.
In the quest for a sustainable future, renewable energy systems have emerged as key players in reducing our dependence on fossil fuels and mitigating climate change. At the heart of these systems are advanced technologies like Omron power relays, driving efficiency, reliability, and performance to new heights.
Energy Management System for Commercial & Industrial Use
For commercial buildings which account for a large amount of energy consumption, efforts are being called to reach “zero emission”. This is achieved by increasing the installation of stable renewable energy sources such as solar photovoltaic power generation systems and storage batteries in addition to energy efficiency efforts.
Energy Management System for Residential Use
As more households choose to install energy-efficient equipment such as solar photovoltaic power generation systems, storage batteries and fuel cell systems, we are coming closer to realizing a decentralized society that does not rely on conventional power sources
Featured Product Spotlight
- Video: Power Relay G9KA
- Video: DC Power Relay G9KB
- Data Sheet: G9KA
- Data Sheet: G9KB
Featured Products
Omron’s G9KA relay 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 industry-leading 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.
The G9KA can reduce the temperature rise of the relay about 30% – compared with conventional high-power relays – by lowering the contact resistance to the industry-leading 0.2mΩ. 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.
| FEATURES & BENEFITS | APPLICATIONS | RESOURCES |
Industry-leading ultra-low contact resistance (0.2mΩ) suppresses heat generation | Inverters for PV & ESS | G9KA Data Sheet |
Supporting high-capacity applications. Capable of energizing and de-energizing 200A (800 VAC) | Storage batteries – UPS (Uninterruptable Power Supply) input & output lines | Safety Precautions for all PCB Relays |
Ambient temperature -40 to 85°C | EV charging stations | Electrical Mechanical Relay Selection Guide |
Rises in board temperatures are suppressed by a low heat generation and high dissipation structure | High voltage designs | WHITE PAPER: G9KA 800 VAC 200 A / 1000 VAC 300A PCB Relay with ultra low contact resistance feature |
High impulse withstand voltage, 10 kV | Robot control equipment | |
Contact gap ≥4.0 mm (Applied to VDE0126) | Industrial air conditioner |
The G9KB is a PCB power relay that provides bi-directional high-power DC switching for the next generation of home renewable energy systems and electric vehicles.
The G9KB safely cuts off the direct current in household storage systems that have been increasing in capacity and plays a role in encouraging renewable energy by downsizing products.
OMRON developed a high voltage DC relay, “G9KB,” for high capacity household electricity storage systems. By adopting the arc cut-off technology and the new 3D arc simulation technology created by industry-academia collaboration, one relay handles the charging of electricity storage system, switching control and safe cut-off of the direct current which runs during discharging. In the 3D arc simulation technology, OMRON established a method to analyze the safe cut-off process of the high voltage DC and to reflect the analysis result to the component structure design. With these technologies, the compact high voltage DC relay which securely and safely cuts off DC was established, and the relay contributes to the downsizing and weight reduction of the customer’s products.
| FEATURES & BENEFITS | APPLICATIONS | RESOURCES |
600VDC, 50A bidirectional switching (one pole double break) | Vehicle to home (V2H) and vehicle to grid (V2G) charger systems | G9KB Data Sheet |
OMRON advanced arc cut-off technology | Energy Storage Systems (ESS) | Safety Precautions for all PCB Relays |
Low initial contact resistance ≤5 mΩ | Power Conditioners (PCS) | Electrical Mechanical Relay Selection Guide |
Low coil power consumption ~ 0.57W | Battery Management Units (BMU) | WHITE PAPER: 600 VDC 50 A High-power PCB relay G9KB Instruction of product performance and reference circuit |
Wide ambient operating temperature from －40℃ to +85℃ | DC Household Appliances | |
UL 60947-4-1 and EN 61810-10 certified (required for ESS) |
Omron’s G7L power relay is a miniature-sized relay for maximum switching power, particularly for inductive loads. It offers a wide range of AC-activated coils that handle 100 VAC to 120 VAC or 200 VAC to 240 VAC at either 50 Hz or 60 Hz. No contact chattering occurs for momentary voltage drops up to 50% of rated voltage.
Various terminal shapes are available including quick connect, screw, and PCB. Mounting construction options include e-bracket (sold separately), upper bracket mounting, and PCB mounting. A test button is available for certain part numbers.
Accessories sold separately include e-bracket, adapter, front-connecting socket, and cover.
| FEATURES & BENEFITS | APPLICATIONS | RESOURCES |
No contact chattering for momentary voltage drops up to 50% of rated voltage. | Compressors for air conditioners and heater switching controllers | G7L Data Sheet |
Wide-range AC-activated coil that handles 100 to 120 or 200 to 240 VAC at either 50 or 60 Hz. | Power controllers for water heaters and dryers | Safety Precautions for all PCB Relays |
Miniature size for maximum switching power, particularly for inductive loads. | Power controllers for uninterruptible power supplies (UPS) | Electrical Mechanical Relay Selection Guide |
Flame-resistance materials (UL94V-0-qualifying) used for all insulation material. | Battery Management Units (BMU) | WHITE PAPER: G7L-X PCB Power Relays |
Quick-connect, screw, and PCB terminals, and DIN track mounting available. | ||
Conforms to UL, CSA, TUV and meets IEC950. |
Contact Us Today
Omron power relays are not just components within renewable energy systems; they are enablers of progress, efficiency, and sustainability. As we continue to harness the power of renewable resources, Omron remains a trusted partner in powering the renewable energy revolution. Explore our range of products and solutions designed to meet the evolving demands of the renewable energy market. Contact us today to learn more and start your journey towards a greener tomorrow.