Siemens 3UA5200-8M Overload Relay

Siemens 3UA5200-8M Overload Relay is a thermal overload protection device designed for mounting on Siemens contactors in motor‑control circuits. It belongs to the 3UA5200 family of thermal‑delayed relays (bimetal type) that provide adjustable, current‑based protection for motors and starting equipment. When used with a compatible Siemens starter, this relay monitors motor current and trips the circuit if overload or stall is detected, helping prevent motor damage and enabling controlled restart after a trip. The relay uses F mounting to attach onto contactors/starters, a common configuration in industrial control panels. Current setting ranges vary by suffix; for example, 3UA5200‑1F covers 3.2 to 5 A, and 3UA5200‑1J covers 6.3 to 10 A, illustrating how different versions in the same family cover different protection levels. Typical applications include protecting small to medium motors in general-purpose machinery, conveyors, pumps, and fans where Siemens low‑voltage control assemblies are employed. For the exact current range, trip characteristics, and installation details of the -8M variant, refer to the Siemens catalog or Industry Mall product pages for this exact suffix.