The trend toward more compact machines and control cabinets is placing ever-greater demands on available installation space. With the SF548340, Celduc offers a solid-state relay (SSR) that takes up only about 30% of the volume of a conventional hockey-puck relay, without compromising switching capacity.
The zero-cross SSR is suitable for switching AC loads from 12 to 280 VAC and can handle loads up to 30 A (AC-1). This makes the relay suitable for use in heating control systems, packaging machines, and other industrial installations where frequent and maintenance-free switching is required. For resistive loads, power ratings of up to approximately 4 kW are achievable.
Thanks to solid-state technology, switching occurs without mechanical contacts. This eliminates contact wear, extends service life, and prevents contact chattering. The integrated zero-cross switching also limits inrush currents and reduces power line distortion when switching AC loads.
The SF548340 features a wide control voltage range of 3 to 32 VDC, enabling direct control from PLC outputs. Furthermore, an integrated overvoltage protection (Transil), an isolation voltage of 4000 Vrms, and international certifications ensure safe operation in industrial environments.
The main advantages:
- 70% space savings compared to standard hockey-puck relays
- High switching capacity: 30 A / 230 VAC
- Easy installation: FASTON terminals and LED status indicators
- Certified with CE, UKCA, UL, and VDE marks
For machine builders looking for a compact solution for power circuits, the SF548340 combines high power density with the advantages of solid-state switching technology.
