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17717479099 | EVR-3P44 Overview Three-Phase AC Voltage Relay ✔ AC voltage measurement and protection ✔ Over/under voltage protection simultaneously ✔ Reverse phase/loss of phase protection ✔ Unbalance protection ✔ Action history recording ✔ Automatic reset time setting |
EVR-3P44 Application Fields
✔ Suitable for areas with significant voltage fluctuations.
✔ Applicable for protecting equipment that may be damaged by overvoltage or undervoltage.
✔ Protection relays and digital meters can be used in a single product.
EVR-3P44 Single-Phase Voltage Relay
✔ Suitable for grid voltage protection in all three-phase circuits for overvoltage and undervoltage protection.
✔ Used in cases where there is a risk of equipment damage due to excessive input voltage.
✔ Applied in ATS (Automatic Transfer Switch) to switch the power supply line in response to abnormal grid voltage.
EVR-3P44 Product Features
| Product Information |
| Product Range | EOCR |
| Model Name | EVR-3P44Voltage Relay |
| Protection Type | Three-Phase AC Overvoltage and Undervoltage Protection |
[Us] Input Voltage | 200/220/380/400/415/440 V AC |
| Power Frequency | 50...60 Hz |
Protection Range | Three-Phase Overvoltage OV: 200~550V AC Three-Phase Undervoltage UV: 140~440V AC |
Mounting Method | 35 mm DIN Rail Panel Mounting |
| Electrical/Mechanical Characteristics |
Voltage Setting | Overvoltage：5, 10, 15, 20, 25%, Off Undervoltage：-5, -10, -15, -20, -25, -30%, Off |
Reset method | Manual reset / Electric reset |
Time Setting | Operation Delay Time：0.2, 1, 3, 5, 7, 10s Automatic Reset Time：5s Off |
[Ue]Operational Voltage | 690 V AC 50...60 Hz Main Circuit Conforming to IEC 60947-4-1 |
[Uimp] Impulse Withstand Voltage | 6 kV Conforming to IEC 60947-4-1 |
Power Consumption | Below 2W |
| Display Type | 2-LED |
Output Contact | lth：3A, AC15：2A |
Permissible Current | 100...240 V, 3A |
| Wiring | Control Circuit Cable: 2 x 1…1.5 mm², Flexible Cable with Terminal - M3 Control Circuit Cable: 2 x 1…1.5 mm², Flexible Cable without Terminal - M3 Control Circuit Cable: 1 x 1…2.5 mm², Flexible Cable with Terminal - M3 Control Circuit Cable: 1 x 1…2.5 mm², Flexible Cable without Terminal - M3 |
Tightening Torque | Control Circuit: 0.8...1.2 N·m, Suitable for Cable, Diameter 4.7 mm Main Circuit: 2.5 N·m, Suitable for Terminal Clamp, Diameter 11 mm |
| Dimensions and weight |
Height | 56.6 mm |
Width | 50 mm |
Depth | 75 mm |
Weight | 0.105 kg |
| Using Environment |
| Using Temperature | Matching IEC 60947-4-1, -20…60 °C |
Storage Temperature | -40…85°C |
| Operating Altitude | 2000m |
| IP Rating | IP20 conforming to IEC 60529 |
| Fire Resistance | 650°C, compliant with IEC 60695-2-12 standard |
| Shock Resistance | 15 gn 11 ms compliant with IEC 60068-2-7 |
Vibration Resistance | 4 gn panel mounting in compliance with IEC 60068-2-6 2 gn 35mm DIN rail mounting in compliance with IEC 60068-2-6 |
| Surge Withstand | 6 kV compliant with IEC 61000-4-5 |
Dielectric Strength | 2 kV 50...60 Hz between enclosure and circuit in compliance with IEC 60255-5 1 kV 50...60 Hz between contacts in compliance with IEC 60255-5 2 kV 50...60 Hz between internal circuits in compliance with IEC 60255-5 |
Electromagnetic Compatibility | - Radiated RF immunity 10 V/m level 3 in accordance with IEC 61000-4-3 - Electrostatic discharge immunity 8 kV air, 6 kV contact in accordance with IEC 61000-4-2 - Transient overvoltage 2 kV in accordance with IEC 61000-4-4 - Conducted RF immunity 10 V in accordance with EN 61000-4-6 - Conducted RF emission class A in accordance with EN 55011 |
| Certification and standards |
| Standards | IEC 60947-4-1 |
| Certification | UL |
18 months warranty |
EVR-3P44 Reference Wiring
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EVR-3P44 Dimensions
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EVR-3P44 Product Ordering
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If you are interested in our products, or if we can help you, you can call our national customer service number at any time:+86-17717479099
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