Products Description
The GE 269PLUS-D/O-211-100P-HI is an advanced motor management relay designed for comprehensive protection, monitoring, and control of medium-sized AC motors. It integrates thermal modeling, current analysis, and programmable protection logic to safeguard motors against electrical and mechanical faults.
This relay belongs to the Multilin 269 Plus series and is widely deployed in critical industrial applications requiring high reliability and continuous operation.
Functional Role / System Position
Installed at the motor control level, this relay operates as a protection and supervision unit between the power system and the driven equipment. It continuously evaluates motor conditions, executes trip or alarm actions when abnormal states are detected, and communicates operational data to higher-level control systems such as SCADA or DCS platforms.
Key Features / Functional Capabilities
- Comprehensive motor protection algorithms covering overload, phase imbalance, ground fault, and locked rotor conditions
- Integrated thermal modeling with RTD feedback ensuring accurate temperature-based protection
- High-speed fault detection enabling rapid response to abnormal operating conditions
- Programmable digital I/O structure supporting flexible control logic integration
- Communication capability via Modbus protocol for seamless system-level connectivity
- Robust industrial design ensuring stable long-term operation in harsh electrical environments
Application Areas / Typical Use Cases
- Motor control centers (MCC) in industrial plants
- Pumps, compressors, and fan protection systems
- Mining, oil & gas, and heavy process industries
- Power generation auxiliary motor protection
- Automation systems requiring real-time motor diagnostics
Parameter Table
| Parameter | Specification |
|---|---|
| Control Power Range | 80–300 V DC / 65–265 V AC |
| Rated Current Input | Up to 10 A (via CT interface) |
| RTD Input Type | Platinum temperature sensors (100 Ω) |
| Digital Input Channels | 5–6 configurable inputs |
| Output Relay Contacts | Up to 4 programmable relay outputs |
| Analog Output | 1 programmable output channel |
| Communication Protocol | RS485 (Modbus RTU) |
| Response Time | <100 ms fault detection |
| Operating Temperature Range | –25 °C to +60 °C |
| Storage Temperature Range | –40 °C to +85 °C |
| Humidity | 5%–95% non-condensing |
| Dielectric Strength | 2 kV (1 minute withstand) |
| Mounting Type | Drawout / panel-mounted relay |
| Weight | Approx. 2.9–5.3 kg |
Contact Information
For pricing, availability, or technical consultation regarding this model, please contact our sales team:
【Sales Manager】
Silver
【WhatsApp】
+86-18020714492
【Email】
sales1@askplc.com
【WeChat】
+86-18020714492
FAQ
Q1: What is the primary role of this relay in a motor system?
It provides protection, monitoring, and control functions to ensure safe and efficient motor operation.
Q2: What types of faults can it detect?
It detects overload, phase imbalance, ground fault, undercurrent, and mechanical jam conditions.
Q3: Does the relay support temperature monitoring?
Yes, it supports RTD inputs for direct thermal monitoring of motor windings and bearings.
Q4: How does it integrate with control systems?
It communicates via Modbus RTU over RS485 for integration with SCADA and DCS platforms.
Q5: Is it suitable for harsh industrial environments?
Yes, it is designed with industrial-grade components and operates reliably across wide temperature and humidity ranges.
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