Single & Three Phase Under Voltage Protection Relay — UVR-5151 / UVR-5153
The Stefan UVR-5151 and UVR-5153 Under Voltage Relays are engineered to deliver superior protection for both single-phase and three-phase electrical systems. Designed with precision and manufactured in Spain, these relays offer advanced voltage monitoring to ensure your panels remain safe from harmful voltage drops. With adjustable time-delay settings, reliable trip accuracy, and robust terminal design, the UVR series is ideal for industrial panels, commercial installations, and essential power applications. Whether you’re building new switchgear or upgrading existing panels, these relays provide consistent, long-term stability against under-voltage events. Protect your equipment. Enhance panel reliability. Choose Stefan UVR for dependable performance in demanding environments.