Schneider Electric 3 Phase Monitoring Relay DPDT DIN Rail 528V AC RM35UB330

Schneider Electric RM35UB330 is a high-performance three-phase monitoring relay engineered to safeguard industrial equipment from voltage fluctuations. This relay is part of the Harmony Control Series and features a robust DPDT contact configuration, allowing it to react reliably to both normal and anomalous voltage conditions in three-phase electrical systems. With a sensing capacity from 194V AC up to 528V AC, the RM35UB330 is crucial for maintaining optimal power quality and preventing damage caused by overvoltage or undervoltage events.

Installation is streamlined through a DIN rail mount design, making integration into control panels and electrical enclosures fast and secure. Its screw terminal connection supports a variety of wire types, ensuring flexibility in wiring layouts across industrial, automation, and commercial environments.

The relay is equipped with an adjustable time-delay feature, ranging from 0.3 to 30 seconds, enabling users to tailor fault response timing to process requirements or system sensitivity. Measurement accuracy is rated to ±10%, providing confidence in continuous voltage management and system reliability.

Constructed for durability and long service life, the RM35UB330 withstands operational temperatures from -20°C to 50°C and offers superior protection due to its IP30/IP20 enclosure ratings. Panel space management is supported by its compact form factor - 90mm in height, 72mm in length, and 35mm in width, making it ideal for dense electrical installations.

Typical applications include monitoring voltage levels in three-phase supply systems, protecting sensitive industrial machinery, and incorporating reliable overvoltage and undervoltage protection into process automation networks. The relay’s DPDT configuration suits a broad spectrum of control logic and relay interface requirements in manufacturing, water treatment plants, HVAC setups, and electrical distribution infrastructure.

Compliance with GOST, GL, EN/IEC 60255-1, CSA, and UL standards underscores its suitability for international operations and environments requiring robust electrical safety and performance certifications.

To browse more industrial monitoring relays or Schneider Electric components, explore the Monitoring Relay range in the EnvMart catalogue.