Littelfuse, Inc. Relays, Contactors & Transformers - Protection Relays - Resistance Grounding - Series: SE-330HV - SE-330HV-25-00 SE-330HV-25-00

The SE-330HV is a high-voltage neutral-grounding-resistor monitor for systems up to 72 kV, detecting open or shorted grounding resistors and ground-fault currents as low as 100 mA using DFT filtering to prevent false trips from harmonic noise. It includes two programmable Form C and one Form A output contacts, an analog 4-20 mA output, and onboard event logging with a microSD card. Communication options include USB, DeviceNet, and IEC 61850 via dual RJ45, SC Fiber and RJ45, or dual SC Fiber interfaces. The unit measures 213 mm in height, 98 mm in width, and 132 mm in depth, is conformally coated, and is CSA certified, UL Listed, CE marked, and RCM compliant. The SE-330HV-25-00 is a variant with a 48 Vdc power supply and dual SC Fiber Ethernet communication.