A24125 is a 125 Amp solid-state relay designed for heavy industrial AC loads with 90-280 VAC control input and 24-280 VAC output operating voltage. The relay features SCR output technology with zero voltage or instantaneous turn-on switching options, a maximum on-state voltage drop of 1.15 Vrms at rated current, and a thermal resistance junction to case of 0.22 °C/W. It incorporates a direct bond copper substrate, epoxy-free design, and is housed in a UL 94 V-0 rated enclosure with an aluminum baseplate for enhanced durability. The device is UL/CSA/TUV approved and CE compliant to EN60950-1, making it suitable for demanding industrial control applications requiring reliable AC switching with minimal heat generation and long operational life.