MPR-2 - Unknown ENTES - Free user manual and instructions
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| Type de produit | Multifunction Protection Relay |
| Marque | ENTES |
| Modèle | MPR-2 |
| Application | Protection of motors, generators, and distribution feeders |
| Entrées de mesure | 3-phase current and 3-phase voltage inputs |
| Afficheur | LCD with backlight, multi-line display |
| Alimentation | 80–265 V AC/DC (universal power supply) |
| Dimensions | 96 × 96 × 90 mm (panel depth) |
| Poids | ≈ 0.6 kg |
| Montage | Flush panel mounting |
| Fonctions de protection | Overload, short-circuit, phase loss, phase sequence, undercurrent, earth fault, undervoltage/overvoltage |
| Interface de configuration | Front panel keyboard and menu navigation |
| Sorties | 2 relay outputs (programmable) and optional analog output |
| Communication | Modbus RTU (RS485) optional, USB port for configuration |
| Température de fonctionnement | -20°C to +60°C |
| Normes | IEC 60255, IEC 61000-4, CE marked |
| Entretien | Clean with a dry soft cloth; no solvents or abrasives |
| Sécurité | IP54 front panel protection, finger-safe terminals, insulation voltage 4 kV |
| Pièces détachées / Réparabilité | Modular internal design, replaceable terminal blocks and communication modules |
| Informations générales | Free user manual available in PDF, 61 pages, English |
Frequently Asked Questions - MPR-2 ENTES
What does the ENTES MPR-2 protection relay do?
The ENTES MPR-2 is a multifunction protection relay designed to monitor and protect electrical motors, generators, and distribution feeders from faults like overload, short circuit, phase imbalance, and earth faults.
How do I select the correct current transformer (CT) ratio for the MPR-2?
Set the CT primary current according to your installation's full-load current. The MPR-2 accepts CT secondaries of 5A or 1A, and the ratio is programmed via the front panel menu under 'CT Settings'.
Can the MPR-2 be used for both motor and feeder protection?
Yes, the MPR-2 offers separate protection curves and settings for motor starting (with thermal memory) and feeder overcurrent protection, making it versatile for both applications.
What is the recommended wiring procedure for the MPR-2?
Power the relay from the specified AC/DC supply, connect phase currents (L1, L2, L3) to the CT inputs and phase voltages to the voltage terminals. Ensure the sequence is correct and tighten all terminals to the torque specified in the manual.
How do I reset an alarm or trip condition on the MPR-2?
Press the 'Reset' key on the front panel after removing the fault condition. For latched alarms, the relay must be reset manually; for self-resetting faults, the relay will return to normal automatically.
Does the MPR-2 support Modbus communication?
Yes, optional Modbus RTU (RS485) communication is available. You can set the slave ID, baud rate, and parity via the communication menu to integrate with SCADA or PLC systems.
Can I adjust the protection trip curves?
Yes, the MPR-2 allows selection of inverse time curves (standard inverse, very inverse, extremely inverse) and definite time characteristics. Adjust the time multiplier and pick-up settings to match your coordination study.
What maintenance does the MPR-2 require?
Periodically inspect the tightness of terminal connections and check that the relay face is clean. Use a dry cloth for cleaning. No internal calibration is required under normal operating conditions.
Is the ENTES MPR-2 suitable for outdoor installation?
The relay is designed for indoor panel mounting with an IP54 front face. For outdoor use, install it in a weatherproof enclosure that protects the back terminals and provides at least IP55 protection.
What are the physical dimensions and mounting cut-out of the MPR-2?
The MPR-2 has dimensions of 96 × 96 mm front bezel and a depth of 90 mm behind the panel. The panel cut-out is standard 92 × 92 mm, fitting DIN 43700 standard.
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USER MANUAL MPR-2 ENTES
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Product information
Brand : ENTES
Model : MPR-2
Category : Unknown