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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | Startco / Littelfuse |
| Manufacturer Product Number | SE-701-0D |
| Description | Ground Fault Relay; 12/24 Vdc |
| Datasheet | Download Datasheet |
The Littelfuse Startco SE-701-0D is a ground-fault monitor with a 12/24 Vdc supply.
It provides ground-fault protection for resistance- and solidly-grounded systems (main-plant, feeder, or individual load).
Settings: 1-99% CT-Primary Rating (minimum 50 mA with EFCT Series). Trip delay: 0.05-2.5 s. Sensing: ground-fault current transformer required (5- and 30-A primaries); CT-loop monitoring.
Outputs: isolated Form A and Form B; selectable fail-safe or non-fail-safe. Analog output: 0-5 V. Harmonic filtering: standard feature (selectable DFT or peak detection).
Mounting: DIN, surface (standard); panel (with PMA-55 or PMA-60 adapter). Size: H 75 mm (3.0"); W 55 mm (2.2"); D 115 mm (4.5"). Conformal coating: consult factory.
Approvals: CSA certified, UL Listed (E340889), CE (European Union), C-Tick (Australian).
| Category | |
| Manufacturer | Startco / Littelfuse |
| Model | SE-701 |
| Monitoring Function | Ground-fault protection for resistance- and solidly-grounded systems (main-plant, feeder, or individual load) |
| Ground Fault Current Range | 1-99% CT-Primary Rating (minimum 50 mA with EFCT Series) |
| Required Accessories | Ground-fault current transformer required (5- and 30-A primaries); CT-loop monitoring |
| Input Voltage | 12/24 Vdc |
| Trip Delay | 0.05-2.5 s |
| Analog Output | 0-5 V |
| IEEE Device Numbers | Ground fault (50G/N, 51G/N) |
| Harmonic Filtering | Standard feature (selectable DFT or peak detection) |
| Conformal Coating | Consult factory |
| Contact Configuration | Isolated Form A and Form B; Selectable fail-safe or non-fail-safe |
| Mounting Type | DIN, Surface (standard); Panel (with PMA-55 or PMA-60 adapter) |
| Dimensions | H 75 mm (3.0"); W 55 mm (2.2"); D 115 mm (4.5") |
| Approvals | CSA certified, UL Listed (E340889), CE (European Union), C-Tick (Australian) |