EATON COM-MPB2-TP Modbus TCP Communication Module

Basic Info

• Brand: Eaton (Cutler-Hammer)
• Model: COM-MPB2-TP
• Series: MPB Multifunction Protection Relay communication accessory
• Condition: Brand new original
• Lead time: Ship within 3 working days after payment
• Warranty: 12 months

Core Specifications

1. Communication Interface
   • Primary port: RJ45 Ethernet, Modbus TCP/IP
   • Support TCP server/client mode, baud rate auto-adaptive 10/100 Mbps
   • Secondary channel: Isolated RS485 Modbus RTU terminal for daisy-chain expansion
2. Power Supply
   • 24 VDC auxiliary power (18–32 VDC wide range)
3. Isolation & EMC
   • Electrical isolation between Ethernet, RS485 and relay internal circuit
   • Surge suppression for industrial cabinet electromagnetic interference
4. Mounting
   • Snap-on side-mounted module, directly attach to MPB series protection relays (MPB1, MPB2, MPB3) without extra DIN rail space
5. Environment
   • Operating temperature: -20°C ~ +60°C
   • Protection grade: IP20 indoor cabinet use
6. Indicators
   • LED status lights: Power, Ethernet link/activity, Modbus communication fault
   • 

Main Functions

1. Convert MPB relay internal data to Modbus TCP

   Read all electrical measurement data via Ethernet: 3-phase voltage/current, power, power factor, frequency, energy, THD, fault records, relay status.

2. Remote parameter configuration & control

   Upload/download relay protection setting parameters remotely via Modbus TCP; remote trip/reset control of protection relay.

3. Dual communication redundancy compatibility

   Simultaneous Modbus TCP Ethernet + Modbus RTU serial, connect to local HMI and central SCADA at the same time.

4. Fault event timestamp upload

   Transmit overcurrent, short circuit, earth fault, overload alarm logs with time stamp to upper monitoring system.