1. መግቢያ
This manual provides comprehensive instructions for the installation, operation, and maintenance of the EARU Electric 3-Phase Voltage and Overcurrent Protector, Model EARU-1008. This device is designed to safeguard 3-phase electrical systems by continuously monitoring voltage and current, offering protection against over-voltagሠ ፣ ከግርጌ በታችtage, overcurrent, and phase failure. It is suitable for industrial and commercial applications requiring reliable electrical monitoring and protection.
2. የደህንነት መረጃ
ማስጠንቀቂያ፡ የኤሌክትሪክ ንዝረት አደጋ። ተከላ እና ጥገና መደረግ ያለበት ብቃት ባላቸው ባለሙያዎች ብቻ ነው.
- መሳሪያውን ከመጫንዎ ወይም ከማገልገልዎ በፊት ሁልጊዜ ኃይሉን ያላቅቁ።
- የኤሌክትሪክ ንዝረትን ለመከላከል ትክክለኛውን መሬት ማረጋገጥ.
- በገመድ ዲያግራም መሠረት ሁሉም የሽቦ ግንኙነቶች ደህንነታቸው የተጠበቀ እና ትክክለኛ መሆናቸውን ያረጋግጡ።
- መሣሪያው የተበላሸ መስሎ ከታየ አይስሩ።
- ሁሉንም የአካባቢ እና የሀገር ውስጥ የኤሌክትሪክ ኮዶችን ያክብሩ።
3. ምርት አብቅቷልview
3.1. ቁልፍ ባህሪያት
- Real-time 3-Phase Monitoring: Displays live voltage (L1, L2, L3) and current (L1, L2, L3) values.
- አጠቃላይ ጥበቃ; ከመጠን በላይ እንዳይሆን የሚከላከሉ መከላከያዎችtagሠ ፣ ከግርጌ በታችtage, overcurrent, and phase failure.
- የሚስተካከሉ መለኪያዎች፡ User-configurable settings for protection thresholds and recovery delays.
- Automatic Phase Failure Reset: Detects and automatically resets after phase anomalies.
- High-Visibility LED Display: Bright red LED for clear readings in various lighting conditions.
- DIN የባቡር ተራራ; Easy integration into standard electrical panels.
- Clear Terminal Labeling: Simplified installation with clearly marked input and output terminals.
3.2. ክፍሎች እና ማሳያ
The device features a clear LED display and intuitive control buttons for configuration. The display shows real-time voltage and current for each phase, along with indicators for protection status.

ምስል 3.2.1፡ ፊት ለፊት view of the EARU Electric Voltage Protector, showing the LED display for L1, L2, L3 voltage and current, along with control buttons (SET, Up, Down, Power) and protection indicators. Terminal labels for N, L1, L2, L3 (IN and OUT) are also visible.

ምስል 3.2.2፡ አመለካከት view highlighting the product features and the input/output terminals (N, L1, L2, L3) at the top and bottom of the device. This image emphasizes the physical layout and connection points.
4. ማዋቀር እና መጫን
4.1. በመጫን ላይ
The EARU-1008 is designed for DIN rail mounting. Securely attach the device to a standard 35mm DIN rail within an electrical enclosure.
4.2. የወልና ግንኙነቶች
Refer to the wiring diagram below for correct connections. Ensure all connections are tight and properly insulated.
- Connect the incoming neutral (N) and phase lines (L1, L2, L3) to the 'IN' terminals.
- Connect the outgoing neutral (N) and phase lines (L1, L2, L3) to the 'OUT' terminals.
- ኃይልን ከመተግበሩ በፊት ሁሉንም ግንኙነቶች ደግመው ያረጋግጡ.

ምስል 4.2.1፡ Detailed wiring diagram for the EARU Electric Voltage Protector, showing connections for N, L1, L2, L3 for both input and output. The diagram illustrates how to integrate the protector into a 3-phase electrical system.
5. የአሠራር መመሪያዎች
5.1. የመጀመሪያ ኃይል-አፕ
Once wired, apply power to the device. The LED display will illuminate, showing the real-time voltage and current for each phase.
5.2. የማሳያ አመልካቾች
- V: ጥራዝtagሠ ማሳያ።
- A: የአሁኑ ማሳያ.
- ኃይል፡- Output indication.
- >V: ከመጠን በላይtagሠ አመላካች
- <V: ከግርጌ በታችtagሠ አመላካች
- > እኔ፡ Over-current indication.
5.3. መለኪያዎችን ማቀናበር
Use the 'SET' button to enter the configuration menu and the 'Up' and 'Down' keys to adjust values. Press 'SET' again to confirm and move to the next parameter. Hold 'SET' for 3 seconds to enter settings mode.

ምስል 5.3.1፡ A detailed guide to setting various protection parameters on the EARU Electric Voltage Protector. This includes overvoltagሠ, undervoltage, overcurrent, and recovery delay settings, with default values and adjustment ranges.
Key adjustable parameters include:
- ከመጠን በላይ መጨናነቅtage ጥበቃ ቅንብር፡- Range 230-300V (Default 270V).
- ከመጠን በላይ መጨናነቅtage Protection Recover Setting: Range 225-295V (Default 265V).
- ከመጠን በላይ መጨናነቅtage Recovery Delay: Range 1-500s (Default 30s).
- ከመጠን በላይ መጨናነቅtage Trip Delay: Range 0.1-30s (Default 1.0s).
- Undervoltage ጥበቃ ቅንብር፡- Range 140-210V (Default 170V).
- Undervoltage Protection Recover Setting: Range 145-215V (Default 175V).
- Undervoltage Trip Delay: Range 0.1-30s (Default 1.0s).
- Overcurrent Protection Setting: Range 1-63A (Default 30A).
- Overcurrent Trip Delay: Range 0.1-30s (Default 1.0s).
- ጥራዝtage & Current Manual Error Calibration: Adjust for accuracy, range -9.5% to +9.5% (Default 0%).
- Power-on Delay Setting: Adjustable Range: 1-500S (Default: 10s).
5.4. በእጅ አብራ/አጥፋ
The power button allows for manual switching of the device output.
6. ጥገና
The EARU-1008 is designed for minimal maintenance. However, periodic checks are recommended:
- መሳሪያውን ንጹህ እና ከአቧራ እና ፍርስራሾች ነጻ ያድርጉት.
- Periodically inspect wiring connections for tightness and signs of wear.
- ከመጠን በላይ ሙቀትን ለመከላከል በመሳሪያው ዙሪያ በቂ የአየር ዝውውርን ያረጋግጡ።
7. መላ መፈለግ
መሣሪያው እንደተጠበቀው የማይሰራ ከሆነ የሚከተሉትን ያስቡበት፡
- ምንም ማሳያ/ኃይል የለም፡ Check the main power supply and all wiring connections.
- Protection Trip: Identify the active protection indicator (>V, <V, >I). Check the corresponding voltage or current levels. The device will automatically reset once conditions return to normal, based on configured recovery delays.
- Phase Failure: The device automatically detects and responds to phase failures, initiating a cut-off and auto-reset once the phase is restored.
- የተሳሳቱ ንባቦች፡- If readings appear inaccurate, consider performing a manual error calibration as described in Section 5.3.

ምስል 7.1፡ This image highlights the various protection features of the EARU Electric Voltage Protector, including phase failure cut-off, low voltage cut-off, high voltage cut-off, overload cut-off, phase sequence cut-off, and auto-reset on normal conditions. These are key aspects for troubleshooting protection trips.
8. ዝርዝሮች
| መለኪያ | ዋጋ |
|---|---|
| የምርት ስም | EARU |
| ሞዴል | EARU-1008 |
| ደረጃ የተሰጠው አቅርቦት ጥራዝtage | AC 3*220V (N-L1/L2/L3) / 440V |
| ደረጃ የተሰጠው ድግግሞሽ | 50/60Hz |
| Over Current Protection Setting Range | 1-63A (Default 30A) |
| ከድምጽ በላይtage Protection Setting Range | 230-300V (Default 270V) |
| በ Voltage Protection Setting Range | 140-210V (Default 170V) |
| የምርት ልኬቶች | 20 x 10 x 20 ሴ.ሜ |
| የእቃው ክብደት | 450 ግ |
| የመጫኛ አይነት | ዲን ባቡር |

ምስል 8.1፡ This image provides a visual representation of the EARU Electric Voltage Protector's dimensions and a table of key technical specifications, including voltage, frequency, and protection ranges.
9. ዋስትና እና ድጋፍ
9.1. ዋስትና
The EARU Electric Voltage Protector (Model EARU-1008) comes with a የ 1 ዓመት የአምራች ዋስትና ከግዢው ቀን ጀምሮ, በመደበኛ አጠቃቀም ላይ የቁሳቁሶች እና የአሠራር ጉድለቶችን ይሸፍናል. ለዋስትና ጥያቄዎች እባክዎ የግዢ ማረጋገጫዎን ያቆዩ።
9.2. የደንበኛ ድጋፍ
For technical assistance, troubleshooting, or warranty inquiries, please contact EARU customer support through your retailer or the official EARU website. Provide your model number (EARU-1008) and a detailed description of the issue for efficient service.





