Overview

The GE MMII‑PD‑1‑2‑120 is a microprocessor‑based motor management relay from the Multilin Motor Manager II (MMII) series. It is designed to provide comprehensive protection, monitoring, and control for medium‑voltage motors in industrial applications.

This unit safeguards motors against thermal overload, phase imbalance, ground faults, stalls, jams, and mechanical stresses, while also offering real‑time diagnostics and communication capabilities. With its rugged design and advanced features, the MMII‑PD‑1‑2‑120 ensures reliable motor operation in demanding environments such as power generation, petrochemical, mining, and manufacturing facilities.

Technical Data

Typical Applications

• Power generation plants: Protecting auxiliary and process motors.

• Petrochemical and refining facilities: Ensuring reliable motor operation under variable loads.

• Mining and heavy industry: Monitoring motor health and preventing costly downtime.

• Manufacturing plants: Providing real‑time diagnostics and safe motor startup.

Key Features

• Comprehensive motor protection with advanced thermal modeling.

• Programmable outputs for flexible trip and alarm configurations.

• User‑friendly LCD interface for setup and monitoring.

• Communication support for integration into SCADA/DCS systems.

• Rugged construction for continuous operation in harsh environments.

FAQ

Q1: What is the primary role of the MMII‑PD‑1‑2‑120 unit?

A1: It protects and manages medium‑voltage motors in industrial applications.

Q2: How does it improve reliability?

A2: By providing advanced fault detection and real‑time monitoring, it reduces motor failures and downtime.

Q3: Can it integrate with automation systems?

A3: Yes, it supports Modbus and RS‑485 protocols for seamless integration.

Q4: How is it powered?

A4: This model operates on 120 VAC control power.

Q5: Why choose GE Multilin motor management units?

A5: GE Multilin motor management units offer proven reliability, advanced communication, and robust protection, trusted worldwide in industrial motor applications.