Solid state relays, single-phase series GND, type Crouzet 841. With FET or bipolar transistor, DC output. Optimized thermal response, with or without protective cover; Load current: see the table. I/O voltage: see the table. Forward voltage: 1.0 V. Input current: max. 20 mA (FET), 14.5 mA (Bipolar). Response delay: 2.0 ms (FET), 100 ms (bipolar). Release delay: 100 ms (FET), 200 ms (bipolar). Electrical isolation between input and output circuits: 4000 VRMS. Dielectric strength: 2500 VRMS. Input/output capacitance: 8.0 pF. Operating temperatures: –20 to +80 °C. Certifications: UL/cUL, TÜV. Note: Corresponding heatsinks are described below the Crouzet series. With protective cover. Technical attributes (type, transistor version, load current, output voltage, input voltage): 84137870, FET, 30 A, 1.0 to 50 VDC, 3.0 to 32 VDC