Munich, Germany,
29
October
2025
|
11:13
Europe/Amsterdam

Schaltbau introduces the R300 high-voltage relay

Reliable and versatile solution for test benches and other industrial applications

r300--01--wb--4kSchaltbau today announced the launch of its Eddicy R300 high-voltage relay, a compact and robust solution designed for applications where performance, safety, and compliance are critical. Based on the company’s trusted R400 relays in the railway sector, the Eddicy R300 brings proven reliability to new industrial use cases, delivering confidence wherever high-voltage DC testing and insulation with non-active component isolation is required.

Engineered to withstand voltages up to 10,000 V, the R300 is easily integrated into various test environments. The robust and durable device is capable of safely switching currents up to 25 A, comes in single- and double-pole configurations, and combines a space-saving design with outstanding performance. Its large contact pills ensure extremely low contact resistance, minimizing heat generation and significantly reducing the risk of contact welding.

The double contact bridge design provides improved arc extinguishing performance. With a making capacity of up to 200 A, the relay is engineered for long-term durability even under tough operating conditions. An integrated economizer circuit keeps pull-in power consumption below 12 W, enabling direct control with a programmable logic controller (PLC), lowering operating costs and thermal stress while extending service life.

“Reliable isolation and switching in high-voltage DC systems remain among the toughest challenges in modern engineering,” says Helmut Pusch, CEO, Schaltbau GmbH Group. “Our new R300 high-voltage relay extends Schaltbau’s proven DC technology from the rail sector to the field of advanced test systems, ensuring electrical safety by reliably isolating all non-active components during high-voltage and insulation testing. Compact, cost-efficient, and easy to integrate, it offers a dependable solution where a contactor would be oversized.”

The R300 is designed for a wide range of high-voltage and safety-critical applications. In testing environments, it supports HiPot, insulation, PE conductor, and leakage current testing, ensuring reliable and repeatable results. In power electronics, it serves as a pre-charge relay in converter systems, and as a relay for switching measuring points. Unlike competing products, the R300 is a ready-to-use solution, with all necessary components included, eliminating the need for additional purchases and simplifying installation while reducing overall system cost.

Learn more here

About Schaltbau

Schaltbau is a global leader in DC power solutions, specializing in products and solutions that drive electrification across industries. With a broad portfolio of contactors, connectors, switches, and safety components, Schaltbau has been helping partners and customers solve challenges in rail for generations. Building on this legacy with its new brand Eddicy, they also develop cutting-edge solutions designed to meet the highest standards of safety and reliability for switching and protecting DC applications in energy and e-mobility. Headquartered in Munich, Germany, and supported by a global team of over 1,000 employees, Schaltbau continues to shape the future of electrification with nearly a century of expertise.