MMII-PD-1-2-240 Relay | GE Motor Manager II Industrial Module

GE MMII-PD-1-2-240 Motor Manager II 240 VAC – Product Description

Overview / Product Summary

The GE MMII-PD-1-2-240 is an intelligent Motor Manager II relay designed for industrial motor protection. It integrates protection, metering, and control into a single compact device, ensuring reliable operation of low- and medium-voltage motors. Moreover, the module supports programmable logic, event recording, and communication protocols, enabling seamless integration with plant automation systems. Its rugged design ensures high reliability even in harsh industrial environments.

Technical Specifications

Attribute — Specification
Model Number — MMII-PD-1-2-240
Series — GE Multilin Motor Manager II (MMII)
Type — Motor Protection Relay
Protection Functions — Overload, short circuit, phase unbalance, phase loss, ground fault, thermal protection
Control Features — Motor start/stop sequencing, breaker control, programmable logic
Metering Functions — Current, voltage, power, energy, demand
Event Recording — Sequence of events (SOE), disturbance recording
Communication Protocols — Modbus RTU, RS485 (optional Ethernet via modules)
Power Supply — 240 V AC nominal
Inputs/Outputs — Multiple digital inputs and relay outputs
Operating Temperature — –40 °C to +70 °C
Storage Temperature — –40 °C to +85 °C
Mounting — Panel-mounted compact chassis
Weight — 2.5–3.0 kg

FAQ

Q1: What types of motors does this relay protect?
It protects low- and medium-voltage industrial motors in various applications.

Q2: Which protection functions are included?
Overload, phase loss, phase unbalance, ground fault, short circuit, and thermal protection.

Q3: Does it support SCADA/DCS integration?
Yes, the relay supports Modbus RTU, RS485, and optional Ethernet for automation systems.

Q4: Can it record events and disturbances?
Absolutely, it features SOE and disturbance recording for diagnostics and maintenance planning.

Q5: Is it suitable for harsh industrial environments?
Yes, its compact and rugged design ensures reliable operation in demanding conditions.