Schneider Electric 5100512158 Time Delay Unit

The Schneider Electric 5100512158 Time Delay Unit (MNR 200/250V) is a plug‑in module designed for undervoltage release (UVR) systems in low‑voltage circuit breakers, delivering a controlled, programmable delay before tripping or resetting. It is commonly installed in industrial switchgear, power distribution panels, motor control centers, and circuit breaker assemblies equipped with UVR protection to help prevent nuisance trips from temporary voltage dips. Key specifications include operating voltage of 200/250 V AC/DC, a time delay range of 0.5 to 3 seconds, weight approximately 150–160 g, model MNR 200/250V, alternate part number 33682, and plug‑in/integrated installation; it serves UVR devices and is a legacy replacement part available for Schneider Electric and Merlin Gerin equipment.