The MVR-205 protection device comes with comprehensive measuring, monitoring and
communication features. Its standard configuration provides additional digital inputs and
outputs compared to the basic variant.
- 5x Current input (configurable 0.2…10A)
- 4x Voltage input (1.00…480.00V (RMS)
- 11x Digital input
- 10x Output relay (4NO, 1CO)
- 1x IRF output (1CO)
- 2x Remote com port (1 x RJ45 Ethernet and 1 x RS-485)
- Modbus TCP/RTU, IEC 60870-5-104/103/101. DNP 3.0. SPA protocols
- DT, IEC or ANSI time/overcurrent curves with settable release delays

Marine approvals:
- DNV/GL
- Lloyds Registeres LR
- Bureau Vertias BR
- ABS (USA)
- CCS (China)
- CNK (Japan)
- IEC (Israel)
- KR (Korea)
- UKCA (UK)
- RINA (Italy)
Features
Protection Functions:
• (Sensitive) Earth fault protection stages INST, DT or IDMT (ANSI 50N/51N(S))
• Auto-reclose (ANSI 79)
• Breaker failure protection (ANSI 50BF)
• Cable-end differential protection (ANSI 87)
• Cold-load pick-up block (ANSI 68)
• Current transformer supervision (ANSI 60L)
• Current unbalance/broken conductor protection stages INST, DT or IDMT (ANSI 46 /R/L)
• Directional (sensitive) residual over-current protection stages DT or IDMT (ANSI 67N)
• Directional three-phase over-current protection stages DT or IDMT (ANSI 67)
• Fault locator (ANSI 21FL)
• Frequency protection stages (ANSI 81O/U)
• Fuse failure (ANSI 60)
• Harmonic over-current protection/inrush blocking stages INST, DT or IDMT (ANSI 50H/51H/68)
• Overvoltage protection INST, DT or IDMT (ANSI 59)
• Positive/negative sequence under-/over-voltage protection INST, DT or IDMT (ANSI 27P/47/59P)
• Rate of Change of Frequency ROCOF (ANSI 81R)
• Residual voltage protection INST, DT or IDMT (ANSI 59N)
• Restricted low-impedance earth fault protection (ANSI 87N)
• Reverse-/under-/over-power protection INDT, DT or IDMT (ANSI 32)
• Switch onto fault logic (SOTF)
• Synchrocheck (ANSI 25)
• Thermal overload protection (line) (ANSI 49L)
• Three-phase over-current protection INST, DT or IDMT (ANSI 50/51)
• Under-voltage protection INST, DT or IDMT (ANSI 27)
• Voltage memory
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