Siemens 3RA28111CW10 Solid State Time Relay. Siemens Timing Relay, Electronic, Operation Mode: On-Delay, 1NO Contact Form, 0.05 to 100 s Time Setting, Screw Terminal Electrical Connections, IP20 Enclosure, Clip-On Mounting, 38 mm H x 45 mm W x 74 mm D Dimensions. Additional Description: SIEM-3RA2811-1CW10 TIMING RELAY MOD SS 24-240VUC 100S SCREW. Catalog Description: Solid-state time relay on-delay with semiconductor output 24...240V AC/DC, timerange 0.05...100s, for snapping onto the front, for 3rt2 contactors screw terminals.