Littelfuse SE-330HV-25-01

The SE-330HV-25-01 serves as an essential monitoring relay for ground-fault and neutral-grounding resistors. This device continually measures critical parameters such as neutral current, neutral-to-ground voltage, and neutral-to-ground resistance.

Its primary function is to ensure that the neutral-grounding resistor (NGR) remains intact, which is vital for maintaining operational safety. If the NGR is open, it compromises the ground-fault protection system, potentially leading to erroneous assumptions about system integrity.

Suitable for both low- and medium-voltage transformers and generators, the SE-330HV-25-01 can be utilized in a variety of sectors including processing, manufacturing, chemical, pulp and paper, petroleum, and water treatment facilities. For high-voltage applications, this model is specifically designed to meet those demands.

It conforms to multiple standards, including approvals from CSA, UL, CE, and C-Tick, ensuring reliability across various installations. The device features an analog output current range of 4-20 mA and offers communication options via USB and dual SC Fiber Ethernet.

With dimensions measuring 8.4 inches in height, 3.9 inches in width, and 5.8 inches in depth, the SE-330HV-25-01 is designed to fit compactly within control systems.