The 34.81.7.005.9024 is a 1-pole Ultra-slim Solid-state PCB Relay with DC coil, 34.81 series. 1NO (SPST-NO) contact configuration, AgNi contact. 2A, 24VDC output switching, zero crossing switching. Silent, high speed switching with long electrical life. Sensitive DC Input circuits (dual AC/DC input drive possible using 93 series socket).