Littelfuse SE-325 Series, Neutral-Grounding-Resistor Monitor, 120VAC
Regular price
$1,949.48
⚠️ IMPORT NOTICE
FOR ALL ORDERS OUTSIDE CANADA, CUSTOMERS ARE RESPONSIBLE FOR ANY IMPORT DUTIES, TARIFFS, TAXES, AND CUSTOMS FEES THAT MAY APPLY TO THEIR ORDERS.
FOR ALL ORDERS OUTSIDE CANADA, CUSTOMERS ARE RESPONSIBLE FOR ANY IMPORT DUTIES, TARIFFS, TAXES, AND CUSTOMS FEES THAT MAY APPLY TO THEIR ORDERS.
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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 connection, corrosion, ground fault, or NGR failure, and provides one alarm or trip output contact.
| IEEE Device Numbers |
Ground Fault (50G/N, 51G/N), Overvoltage (59N), Lockout Relay (86), Checking Relay (3) |
| Input Voltage | See ordering information |
| Dimensions |
H 150 mm (5.9"); W 109 mm (4.3"); D 100 mm (4.0") |
| GF Trip Level Settings | 0.5-4.0 A |
| GF Trip Time Settings | 0.1-2.0 s |
| RF Trip-Level Settings |
20-400 Vac (≤5 kV systems) 100-2,000 Vac (>5 kV systems) |
| Contact Operating Mode | Selectable fail-safe or non-fail-safe |
| Reset Button | Standard feature |
| Output Contacts | Form A |
| Approvals |
CSA certified, UL Listed (E340889), C-Tick (Australian) |
| Conformally coated | Standard feature |
| Warranty | 5 years |
| Mounting | Surface |