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Littelfuse Relay Controller Equipment & Supplies
9 equipment items found
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
The NGRM-ENC is a compact non-metallic NEMA-4X enclosure housing an SE-325 or SE-330 Neutral-Grounding-Resistor (NGR) Monitor pre-wired to terminal blocks for easy field installation. Optional features include a fused 600/480:120 V control power transformer and internal/external 3-phase voltage-indicator lights. For SE-330 models, a USB connector is included and additional options include an ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
The PGR-5330 is an advanced ground-fault and resistor monitoring relay. The PGR-5330 measures neutral current, neutral-to-ground voltage and neutral resistance. It provides continuous monitoring of the neutral-to-ground path to ensure the neutral-grounding resistor (NGR) is intact. This is of utmost importance on resistance-grounded systems because NGR failure renders current-sensing ground-fault ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
The SE-325 Neutral-Grounding-Resistor Monitor is used on resistance-grounded systems up to 25 kV to monitor the integrity of the neutral-to-ground path and to detect ground faults. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The SE-325 coordinates these three measurements to detect a loose ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
The PGM-8325 Neutral Grounding Monitor is used on resistance-grounded systems up to 25 kVac to monitor the integrity of the neutral-to-ground path. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The PGM-8325 coordinates these three measurements to detect a loose connection, corrosion, ground-fault, ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
he SE-330 is an advanced ground-fault and neutral-grounding-resistor monitoring relay. It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact. This is of utmost importance—an open NGR renders current-sensing ground-fault protection ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
The SE-330 is an advanced ground-fault and neutral-grounding resistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
High-resistance grounding prevents many of the problems that are associated with ungrounded and solidly grounded electrical distribution and utilization systems. High-resistance grounding can limit point-of-fault damage, eliminate transient overvoltages, reduce the arc-flash hazards, limit voltage exposure to personnel, and provide adequate tripping levels for selective current-based ground-fault ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
High-resistance grounding prevents many of the problems that are associated with ungrounded and solidly grounded electrical distribution and utilization systems. High-resistance grounding can limit point-of-fault damage, eliminate transient overvoltages, reduce the arc-flash hazards, limit voltage exposure to personnel, and provide adequate tripping levels for selective current-based ground-fault ...
Manufactured by:Littelfuse, Inc. based inChicago, ILLINOIS (USA)
The SE-330AU is an advanced earth-fault and earthing-resistor monitoring relay for low- and medium-voltage transformers and generators. It monitors neutral current, neutral-to-earth voltage, and neutral-to-earth resistance. It provides continuous monitoring of the neutral-to-earth path to verify that the neutral-earthing resistor (NER) is intact. This is of utmost importance—an open NER ...