Littelfuse, Inc. Relays, Contactors & Transformers - Protection Relays - Resistance Grounding - Series: SE-330HV - SE-330HV-07-00 SE-330HV-07-00

The SE-330HV is a high-voltage neutral-grounding-resistor monitoring relay designed for systems up to 72 kV, providing continuous monitoring of neutral-to-ground resistance and detection of open or shorted grounding resistors, as well as ground-fault detection down to 100 mA using DFT filtering to prevent false trips from harmonic noise. It includes two programmable Form C and one programmable Form A output contacts, a 4-20 mA analog output, and supports IEC 61850 communication via dual RJ45 or SC Fiber interfaces. The unit is conformally coated, mounted on a panel or surface, and features a 5-year warranty. It is CSA certified, UL Listed, CE compliant, and RCM approved.