Sensata Technologies D4825 Relay

The Sensata Technologies D4825 is a panel-mount solid-state relay (SSR) in the Series 1 family designed to switch AC loads up to 25 A continuous at 48–530 VAC, making it well-suited for industrial controls, HVAC/R, and other high-power switching duties where quiet, solid-state operation is advantageous. The device accepts a 4–32 VDC input control and provides a single-form-A (SPST-NO) output, with options for zero-voltage turn-on or instantaneous switching, and it can be driven from AC or DC control; it features a direct-bond copper substrate, epoxy-free housing, improved SEMS screws and washers, and UL/CSA/TUV approvals with CE EN60950-1 compliance. Within the Series 1 480 VAC panel-mount SSR lineup, the D4825 is the 25 A option, with related part numbers D4850 (50 A), D4875 (75 A), and D4890 (90 A) representing higher-current variants, allowing easy matching of load requirements while preserving form-factor and mounting compatibility.