SMI Series: New Compact High-Voltage DC Solid State Relays for Railway Applications
Celduc relais has launched the SMI Series, a new range of compact high-voltage DC solid state relays designed for railway electrification. The relays feature advanced diagnostic capabilities, short-circuit protection, and active-clamp technology to ensure system reliability.
Why it matters
Improved switching reliability and diagnostic features in railway infrastructure can significantly reduce maintenance costs and prevent service disruptions.
As railway systems continue to move towards greater electrification, reliability and reduced maintenance are becoming increasingly important when selecting switching solutions for onboard electrical equipment. To meet these requirements, celduc® relais, a leading manufacturer of Solid State Relays (SSRs), has developed the SMI Series, a new range of compact High-Voltage DC Solid State Relays specifically designed for controlling resistive loads in demanding applications.
The SMI Series is designed to switch loads up to 750 VDC / 15 A, with a typical control input voltage of 24 VDC.
With an installation width of only 45 mm, the SMI combines compact dimensions with advanced protection and diagnostic functions.
One of its key features is its Status output, which provides real-time information about the relay and installation status. This diagnostic capability makes it easier to identify abnormal operating conditions and can contribute to faster troubleshooting and improved system availability.
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