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Siemens 7SR110 Nondirectional Overcurrent Protection Relay | Reyrolle
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Technical Specifications
Single and four pole variants (E4 case); IEC 61850 option (E6 case)
Cold load settings
Four settings groups
Password protection (2 levels)
User programmable logic, self-monitoring
CB trip counter & timer
Fault, event, and waveform records
Protection functions: Overcurrent (50/51), Earth fault (50G/51G), Thermal overload (49), Broken conductor (46BC), NPS overcurrent (46NPS), Voltage protection (27/59/47/59N), Voltage-controlled OC (51V), REF (64H), Directional OC & EF (67)
Supervision: CT (60CTS), VT (60VTS), Trip/Close circuits (74T/CCS), Inrush detector (81HBL2), CB fail (50BF)
Control: Auto-reclose (79)
Monitoring: Currents, voltages, power, energy (Wh, VArh), demand records, PPS/NPS/ZPS
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