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The 469-P5-HI-A20-T-H is a microprocessor-based motor protection and management relay from the Multilin 469 series. It is designed for medium to large horsepower motors, providing comprehensive electrical and mechanical fault protection, advanced thermal modeling, and integrated diagnostics.
This configuration supports 5A CT inputs, high-voltage control power, and four programmable 4–20 mA outputs, making it suitable for high-voltage industrial control systems and SCADA integration. The conformal coating option ensures reliable operation in harsh environments with humidity or corrosive gases.
| Parameter | Specification |
|---|---|
| Model | 469-P5-HI-A20-T-H |
| Series | Multilin 469 Motor Management System |
| Current Input (P5) | 5 A Phase CT Secondary |
| Control Power (HI) | 90–300 VDC / 70–265 VAC |
| Analog Outputs (A20) | 4 × isolated 4–20 mA (programmable) |
| Environmental Option (T) | Conformal coating (harsh environment protection) |
| Mounting (H) | Horizontal chassis |
| Communication Ports | 1 × RS232 (front), 2 × RS485 (rear) |
| Protocol | Modbus RTU (up to 19.2 kbps) |
| RTD Inputs | 12 × 100 Ω Platinum |
| Metering Functions | Voltage, Current, kW, kVAR, kVA, Energy, Demand |
| Dimensions (H×W×D) | 223.5 × 216.4 × 252.2 mm |
| Weight | 7.71 kg |
Three-phase induction and synchronous motors
High-inertia loads requiring acceleration protection
VFD-driven motor monitoring
Pumps, compressors, and fans in power, oil & gas, and heavy industry
What does the “T” option indicate?
It denotes conformal-coated internal PCBs for protection against moisture, chemicals, and H₂S exposure.
Can it be used with 1A CTs?
No. The P5 variant is calibrated strictly for 5A CT secondaries. A 1A model variant is required for 1A CT systems.