Products

 
 

Protection Relays - MELPRO-A Series

Protection Relays - MELPRO-A Series

Made for reliability, the MELPRO-A Series.

MELPRO-A series is a protective relay for high-voltage power reception and distribution facilities. The high reliability and upgraded functions support design, operation and maintenance of the systems.

Overcurrent Relay MOC-A3

・Including two-phase overcurrent protection in one unit
・2 kinds of instantaneous overcurrent protection (50)
・4 kinds of definite time overcurrent protection (51)

MELPRO-A Series Overcurrent Relay

Earth Fault Directional Relay MDG-A3, A4

・Earth (ground) overcurrent protection (50G)
・Wider setting than the existing model

MELPRO-A Series Earth Fault Directional Relay

Earth Fault Overcurrent Relay MGR-A3

・Earth (ground) overcurrent protection (50G)
・Wider setting than the existing model

MELPRO-A Series Earth Fault Overcurrent Relay

Under Voltage Relay MUV-A3

・Undervoltage protection(27)
・1 phase detection type
・Unnecessary power supply

MELPRO-A Series Under Voltage Relay

Over Voltage Relay MOV-A3

・Overvoltage protection(59)
・1 phase detection type
・Unnecessary power supply

MELPRO-A Series Over Voltage Relay

Earth Fault Overvoltage Relay MVG-A3, A4

・Earth (ground) overvoltage protection(64/59G)
・Wider setting than the existing model

MELPRO-A Series Earth Fault Overvoltage Relay