Description
1. Product Overview
- Purpose: 469-P1-HI-A20-T Monitors and safeguards medium-voltage motors from faults like overloads, short circuits, voltage fluctuations, and overheating.
- Key Features:
- Real-time current/voltage analysis, thermal monitoring, and fault diagnostics.
- Rugged design with a sealed front panel for environmental protection.
- Intuitive interface for easy configuration and troubleshooting.
- Compatibility with RS-232/RS-485 for remote monitoring and integration with supervisory systems.
2. Technical Parameters
| Parameter | Details |
|---|---|
| Brand | GE Multilin |
| Model | 469-P1-HI-A20-T |
| Phase CT Secondaries | 1 A |
| Control Power | AC: 70–265 V (48–62 Hz); DC: 90–300 V |
| Analog Outputs | 4–20 mA (A20 variant) |
| Temperature Range | Operating: -40°C to +60°C; Storage: -40°C to +80°C |
| Humidity | Up to 95% (non-condensing) |
| IP Rating | Front: IP40; Rear: IP20 |
| Dimensions | 263 × 138 × 88 mm |
| Weight | 2.35 kg |
3. Protection Functions
- Overload Protection: Detects excessive current and triggers shutdown.
- Short Circuit Protection: Rapidly isolates faults to prevent damage.
- Voltage Protection: Monitors under/over-voltage conditions.
- Thermal Monitoring: Tracks motor temperature to avoid overheating.
- Additional Features: Ground fault protection, phase sequence monitoring, and torque protection (variant-dependent).
4. Applications
- Industries: Manufacturing, energy generation, water/wastewater treatment, HVAC, and conveyor systems.
- Use Cases:
- Preventing downtime in steel mill crushers through thermal protection.
- Optimizing pump station efficiency via real-time monitoring.
5. Competitor Comparison
- Advantages:
- Wider control power range (AC/DC compatibility).
- Faster fault response time (≤50ms).
- Conformal coating option for corrosive environments.
6. Selection Considerations
- Compatibility: Verify CT secondary ratings (1 A) and voltage requirements.
- Environment: Choose the conformal coating variant (e.g., SR469-P5-HI-A20-EH) for harsh conditions.
- Integration: Ensure RS-232/RS-485 compatibility with existing systems.
7. Precautions
- Ensure proper CT installation and wiring to avoid measurement errors.
- Regularly calibrate the relay for accuracy.
- Follow manufacturer guidelines for maintenance and software updates.
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