PR 26C Power Generator Protector Electronic Electric Motor Overload Protection Relay
Inquire NowDescription
The PR 26C Power Generator Protector is a sophisticated electronic relay designed to safeguard electric motors from overload conditions. This device continuously monitors three-phase power lines, ensuring optimal performance across motors of any size or type. When it detects any anomalies that exceed preset alarm thresholds, the PR 26C automatically activates the release switch to shut down the circuit, thereby preventing potential damage.
Equipped with an optional RS485 communication port, it allows for remote monitoring of operational data and alarm status, making it an ideal solution for modern industrial applications.
Features:
- Cost-effective electronic relay that consolidates various single-function protection relays.
- Compatible with motors operating under 0.66KV.
- Integrated 3P CT for current sampling; suitable for currents up to 200A.
- Includes two digital outputs for external control loops.
- Optional RS-485 network communications available.
- Compatible with optional earth leakage sensors or analog outputs.
Application:
- Can be used with or without a zero-sequence core-balance current transformer.
- Compatible with or without an external RTD module.
- Supports across-the-line starting, star-delta starting, and two-speed motors.
Specifications
| Attribute | Details |
|---|---|
| Auxiliary Power | 85-265Vac/dc |
| Power Consumption | <4 VA |
| Insulation Resistance | >100MΩ |
| Relays | 5A/250VAC, 5A/30VDC (NO contact) |
| Motor Rated Voltage | AC220V / AC380V / AC660V |
| Motor Rated Current | 0.5-200A use internal CT; 200A-820A use external ../5A CT |
| Impulse Withstand Voltage | 4 kV |
| Current Accuracy | ± 0.5% @ 10~120% Ie |
| Voltage Accuracy | ± 0.5% @ 10~150% Ue |
| Temperature Accuracy | ± 1% @ 0.1~30 K |
| Comm Port | RS485 MODBUS-RTU; Optional Profibus-DP |
| Working Temperature | -10C ~ +55°C |
| Storage Temperature | -30C ~ +70°C |
| Relative Humidity | < 93% RH |
| Elevation | Less than 3000 m |
| Standard Reference | IEC 60947-1, IEC 60947-4 |
| Electrostatic Discharge Severity | Level III |
| Surge Severity | Level III |
| Voltage Characteristics | Between two of the power/input/output: AC2kV/1min |
Additional Information
Optional accessories include a leakage sensor. The PR 260 features an independent communication module and I/O module, allowing for various configurations and connections.
