en.Wedoany.com Reported - Panasonic Industry has launched its new compact HE-S SC 2a and HE-S SC 2a1b PCB relay series, specifically developed for single-phase electric vehicle charging systems and wall-mounted applications. This relay series fully complies with the upcoming short-circuit test requirements of the European standard IEC 62955, which will become mandatory in the fourth quarter of 2028.
The HE-S SC relay series offers a future-proof switching solution, combining high current-carrying capacity, compact PCB integration, and compliance with the latest safety standards. These relays provide short-circuit capability with Ip = 1.85kA and I²t = 4.5kA²s, enabling designers to meet upcoming European regulatory requirements ahead of the implementation deadline.
The HE-S SC 2a and 2a1b relays are designed as main switching elements for single-phase charging systems, targeting markets such as the UK, as well as parts of Italy and Spain. Each normally open (NO) contact can switch up to 40A at ambient temperatures up to +70°C, delivering reliable performance under demanding operating conditions.
This performance is achieved through meticulous thermal design and a uniquely low coil holding power of only 400mW, helping designers reduce power consumption while maintaining robust switching capability.
For applications requiring contact monitoring, the HE-S SC 2a1b version includes an additional normally closed (NC) mirror contact compliant with IEC 60947-4-1. This feedback contact supports low-level switching loads down to 5VDC and 10mA, enabling reliable status monitoring and helping system designers meet functional safety and diagnostic requirements.
The relay's compact form factor allows complete switching functionality to be integrated directly onto the PCB, eliminating the need for larger external switching components. This approach significantly reduces system size, simplifies assembly, and lowers overall material costs for wall-mounted manufacturers.
Markus Bichler, Head of Industrial Relay Product Management at Panasonic Industry Europe, explained: "As the EV charging market expands rapidly across Europe, reliability, safety, and cost-effective integration are becoming increasingly critical for wall-mounted manufacturers. With our new HE-S SC relays, we enable designers to meet the upcoming short-circuit test standard updates ahead of time, while optimizing system size, energy efficiency, and overall performance. This combination supports the development of next-generation single-phase charging solutions that are both future-proof and highly competitive."
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