Littelfuse, Inc. Relays, Contactors & Transformers - Protection Relays - Resistance Grounding - Series: SE-330HV - SE-330HV-27-01 SE-330HV-27-01

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 faults 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 Form A output contacts, a 4-20 mA analog output, and an onboard 100-event recorder. Conformal coating provides environmental protection, and mounting is panel or surface. Local communication is via mini USB; network options include IEC 61850 via dual RJ45 or dual SC Fiber. It is CSA certified, UL Listed (E340889), CE marked, and RCM compliant. The SE-330HV-27-01 variant operates on 48 Vdc. A 5-year warranty is provided.