HASCO HAT905 series relay provides a 50 amp option uses a longer yoke and armature, as well as a stronger spring structure than the 40 amp standard model. While available in SPDT, the SPST version has a 3mm contact gap for arc suppression. Device’s dielectric strength is ac 4000V between contact and coil, frame and contact, coil and frame one minute. Product’s operating time is approx. 15ms and release time approx. 10ms. Products come in both Class B and the higher temperature class F and are available in both dc and ac current.