Siemens 3RP2505-1AW30 Solid State Timing Relay

Siemens 3RP2505-1AW30 is a multifunction timing relay from the SIRIUS 3RP25 family designed for panel- and DIN rail-mounted time-delayed control. It provides a single change-over output (1CO) and supports 13 timing functions across seven time ranges, from 0.05 seconds up to 100 hours, enabling versatile sequencing, on-delay/off-delay, interval timing, and retriggerable or non-retriggerable timing schemes. The device operates from a broad supply range of 12 to 240 V AC or DC at 50/60 Hz and features an LED indicator to show the active state, aiding troubleshooting in control cabinets. Wiring is via screw terminals for reliable field connections, with a compact footprint suitable for standard DIN rail installations. Typical applications include machine start-up sequencing, conveyor and interlock timing, safety interlocks, and process control where precise, repeatable time delays are required. The 1AW30 designation indicates a 1-changeover contact variant within the 3RP25 timing relay lineup, offering Siemens reliability and compatibility with other 3RP25 timing relays for scalable, modular control architectures. This model is well-suited for designers and technicians who need configurable timing functions in a compact timer relay without resorting to external relays or complex logic, delivering predictable timing behavior across diverse industrial automation scenarios.