Littelfuse, Inc. Relays, Contactors & Transformers - Protection Relays - Resistance Grounding - Series: SE-330HV - SE-330HV-26-01 SE-330HV-26-01

The SE-330HV is a high-voltage neutral-grounding-resistor monitoring relay designed for applications up to 72 kV, providing continuous detection of open or shorted grounding resistors and ground-fault currents as low as 100 mA using Discrete Fourier Transform filtering to prevent false trips from harmonic noise. It features two programmable Form C and one programmable Form A output contacts, an analog 4-20 mA output, an on-board event recorder, and optional communications via IEC 61850 with dual RJ45 or dual SC Fiber interfaces. The unit is conformally coated, panel or surface mountable, and certified to CSA, UL, CE, and RCM standards. Dimensions are 213 mm H × 98 mm W × 132 mm D.