The Omron G9SX-EX401-RT is a flexible safety expansion unit that adds four instantaneous safety outputs and one auxiliary output to a G9SX safety controller. It runs on 24 VDC and uses screw terminals for wiring. Each output is rated for 3 A at 250 VAC or 30 VDC on resistive loads, with a maximum switching voltage of 250 VAC or 125 VDC. The rated carry current matches the 3 A figure, so you're not gaining headroom — plan your contact loads inside that limit. Response time from ON to OFF is 10 ms max; OFF to ON runs 30 ms max. There is no OFF-delay timer on this unit — it's a straight expansion, not a timed module.
Electrical durability is rated at 100,000 cycles minimum under rated load at 1,800 cycles/hour. Mechanical durability goes to 5,000,000 cycles at 7,200 cycles/hour — the contacts will outlast the machine's service life in most applications. Vibration resistance covers 10 to 55 Hz at 0.375-mm single amplitude (0.75-mm double amplitude). Operating voltage range is −15% to +10% of the 24 VDC nominal. Power consumption is 2 W max.