Solid state relay Harmony Relay SSL. Fully assembled solid state relay in a plug-in base for direct use, 6.2 mm wide, for mounting on a top hat rail. Input for control voltage 3-12 VDC. Switching output 1-24 VDC, 3.5 A, DC switching. Single-pole MOSFET output and corresponds to a normally open contact. Plug-in base with LED display, reverse polarity protection and lever for locking or easy removal. Connection technology: spring-loaded terminals. Connection of comb rails for potential bridging available.