0311L7JCC425525XX SEL-311L-1, -7 Line Current Differential System by Sel
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The SEL-311L-1, -7 Line Current Differential System (part number 0311L7JCC425525XX) is engineered for comprehensive protection, featuring standard firmware with improved functions, single-pole differential, and single-pole zone 1 distance backup protection. This hardware is built for a 4U horizontal rack mount configuration and operates on a 125/250 Vdc or Vac power supply. For communications, it utilizes 850nm IEEE C37.94 fiber for channel X and channel Y, alongside two 100BASE-FX Ethernet ports supporting standard serial protocols, serial DNP3, and IEC 61850. The I/O board is equipped with 8 inputs and 12 standard outputs. Secondary inputs include wye-connected Va, Vb, and Vc voltage rated to 150 Vac maximum phase-neutral alongside channel Vs rated to 150 Vac, and 5 amp phase and 5 amp polarizing current inputs. Control input voltage is rated at 220 Vdc, and the unit is supplied without a conformal coat.
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Characteristics
| Manufacturer | Sel |
|---|---|
| Part number | 0311L7JCC425525XX |
| Inner Code | 4736658 |
Technical specification
| Product type | Line Current Differential System |
|---|---|
| Firmware | Standard with Improved Functions, Single-Pole Differential, and Single-Pole Zone 1 Distance Backup Protection |
| Mounting | 4U Horizontal Rack Mount |
| Line Current Differential Communications Channel X | 850nm IEEE C37.94 Fiber |
| Line Current Differential Communications Channel Y | 850nm IEEE C37.94 Fiber |
| Power Supply | 125/250 Vdc or Vac |
| Secondary Input Voltage | Wye-Connected Va, Vb, and Vc (150 Vac Maximum Phase-Neutral; channel Vs also rated to 150 Vac) |
| Secondary Input Current | 5 Amp Phase and 5 Amp Polarizing Current Input |
| Control Input Voltage | 220 Vdc |
| I/O Board | 8 Inputs, 12 Standard Outputs |
| Communications Protocol | Standard Serial Protocols, Serial DNP3 with Two 100BASE-FX Ethernet Ports and IEC 61850 |
| Conformal Coat | None |