Description
Overview
The 269PLUS‑100P‑120 Motor Management Relay is a GE Multilin protection device engineered for safeguarding medium‑sized AC motors in industrial environments. Designed around a microprocessor‑based architecture, it provides comprehensive thermal, electrical, and operational monitoring to ensure reliable motor performance and prevent equipment damage.
Functional Characteristics
This relay incorporates a platinum RTD input (100 Ω) and advanced thermal modeling algorithms to deliver accurate overload protection. Users can select from multiple overload curves or define a custom FlexCurve to match specific motor characteristics. Protection functions include ground‑fault detection, phase‑reversal monitoring, short‑circuit response, and unbalance/single‑phasing supervision.
The 269PLUS‑100P‑120 supports up to 12 programmable RTD channels. RTDs 1–6 are typically assigned to stator winding temperature monitoring, while RTDs 7–10 can be configured for bearing, ambient, or load‑related temperature measurements. The relay also includes five digital inputs, four output relays, and one analog output for flexible integration into control systems.
Monitoring and Communication
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Optional voltage and power metering
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Thermal capacity and current monitoring
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Event and waveform recording
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Compatible with EnerVista Integrator software
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Supports OPC/DDE server connectivity
These features enable seamless communication with PLCs, SCADA systems, and plant‑wide monitoring platforms.
Electrical and Environmental Details
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Control power: 120 V
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Operating temperature: −25°C to +60°C
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Humidity: 5–95% RH, non‑condensing
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Dimensions: 8.2 × 12.2 × 6 cm
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Weight: 0.36 kg
Performance and Protection Features
The relay enhances motor reliability through:
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Pre‑trip alarms
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Emergency restart capability
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Adjustable lockout timing
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Undercurrent/load‑loss detection
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Latched trip and alarm relays
These capabilities support predictive maintenance and reduce unplanned downtime.
Applications
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Medium‑voltage and low‑voltage AC motors
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Pumps, compressors, conveyors, and fans
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Industrial process equipment
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Motor control centers (MCCs)
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DCS and SCADA‑integrated motor protection systems
Technical Specifications Table
| Parameter |
Specification |
| Model |
269PLUS‑100P‑120 |
| Product Type |
Motor Management Relay |
| Series |
GE Multilin |
| RTD Inputs |
12 programmable |
| Digital Inputs |
5 |
| Output Relays |
4 |
| Analog Output |
1 |
| Overload Curves |
8 standard + FlexCurve |
| Operating Temperature |
−25°C to +60°C |
| Dimensions |
8.2 × 12.2 × 6 cm |
| Weight |
0.36 kg |
| Origin |
USA |
| Status |
Active |
FAQ
Q: Can the relay integrate with modern PLC or SCADA systems A: Yes. It supports EnerVista Integrator, OPC/DDE servers, and standard communication interfaces.
Q: How many RTDs can be monitored A: Up to 12 RTDs, with flexible assignment for stator, bearing, and ambient monitoring.
Q: Does the relay support custom overload curves A: Yes. Users may configure a FlexCurve to match specific motor characteristics.
