A2425-B is a 25-ampere solid-state relay designed for heavy industrial AC load switching with 90-280 VAC control input and 24-280 VAC output rating. The relay features SCR output technology with zero voltage or instantaneous turn-on switching options, direct bond copper substrate, and a redesigned housing with anti-rotation barriers for secure panel mounting. It is UL/CSA/TUV approved and CE compliant to EN60950-1, with EMC compliance to Level 3 and support for both AC and DC control inputs. The device is ideal for industrial automation, motor control, and heavy-duty load switching applications where reliable solid-state switching and thermal management are essential.