UL 891 Low Voltage Switchboards
At ASD, we pride ourselves on our extensive expertise and versatile capabilities in designing, engineering, and manufacturing low-voltage switchboards that meet or exceed UL-891 standards. Our switchboards, ranging from 1200A to 5000A and supporting voltages such as 120/208V, 277/480V, and 600V, are built to provide reliable and customized solutions for a wide array of applications and meet rigorous performance standards from 65kAIC to 200kAIC. Whether for single-tenant or multi-tenant/meter layouts, we design our switchboards with meticulous attention to detail, including steel frame construction, copper bussing, and both front and rear accessibility to suit your specific needs.
ASD switchboards are custom engineered with features to enhance safety, reliability, and functionality. These include service entrance ratings, ground fault protection, energy-reducing maintenance switches, and surge protective devices. Our designs can incorporate manual and automatic transfer schemes, mechanical and electrical interlocks, custom metering and other features.
Our team has deep experience designing and building gear for retrofit projects, ensuring flexibility and seamless integration into existing systems - even when there are space constraints. With options like NEMA 1 and NEMA 3R enclosures, our solutions are built for diverse environments.