Type MMC 1000 digital relays are microprocessor-based motor protectors that provide thermal protection for three phase AC motors, protection against phase to phase faults, phase to ground faults, single phase starts, excessively long starts, locked rotor and provide the additional optional functions of undercurrent and successive starts.

• Unbalance or current reversal
• Thermal protection
• Phase and ground fault
• Locked rotor
• Undercurrent