 Ningi Services
M550 Protection Relay
The M550 protection relay is a single device which performs all tasks and protection in an electrical panel. Easy installation is one off the features making the M550 unique. Fault finding is an easy task by reading the status of the system on the large LCD graphics display. The hardware configuration is easily changed with a personal computer and a USB cable.
Features:
- True RMS Protection relay
- Fully configurable
- 11 Inputs
- 5 Relay outputs
- 4-20mA inputs
- 4-20mA outputs
- Graphic display
- Infrared data retrieval
- RS485
- USB
- Infrared remote controlled
- Earth leakage protection
- Real time clock
- 1 -5 Amp ct inputs
- Profibus
Protection Offered:
- Trending
- Emergency start function
- Lock rotor protection
- Analog inputs
- Analog outputs
- Accurate true RMS voltage & true RMS current measurements
- Over/under voltage protection
- Three-phase thermal overload protection (IEC255-8) or definite time trip
- Voltage & current unbalance protection
- Phase loss & phase rotation protection
- Startup protection with 12t protection and thermal stress calculation
- Sensitive earth leakage protection with definite time trip
- Three-phase short circuit protection
- Cumulative start up counter with starts per hour protection
- Real time clock for event logging with date and time stamp
- Data logging of all events including Stop, Start, Power up Power down
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