1. හැඳින්වීම සහ අවසන්view
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Noark B1H UL 489 Miniature Circuit Breaker, Model B1H3D15. This device is designed to protect electrical circuits from overcurrents, which can result from overloads or short circuits. It is a critical component in electrical distribution systems, ensuring safety and preventing damage to equipment.
The B1H series circuit breakers are UL 489 listed, indicating compliance with rigorous safety standards for molded-case circuit breakers. This specific model is a 3-pole, 15A breaker with a D-curve tripping characteristic, suitable for 480Y/277 Vac systems and featuring a 10 kA interrupting capacity with box lug terminals.
2 ආරක්ෂිත තොරතුරු
අවවාදයයි: Electrical shock hazard. Installation and servicing of this equipment should only be performed by qualified, licensed electricians. Failure to follow these instructions can result in serious injury or death.
- Always disconnect power at the main service panel before working on circuit breakers or any electrical wiring. Verify that power is off using a voltagඊ පරීක්ෂක.
- මෙම උපාංගය හානි වී ඇති බව පෙනේ නම් එය ස්ථාපනය කිරීම හෝ ක්රියාත්මක කිරීම නොකරන්න.
- Ensure all wiring connections are secure and properly torqued according to specifications to prevent loose connections and overheating.
- පරිවරණය කළ අත්වැසුම් සහ ආරක්ෂිත කණ්නාඩි ඇතුළු සුදුසු පුද්ගලික ආරක්ෂක උපකරණ (PPE) භාවිතා කරන්න.
- සියලුම දේශීය සහ ජාතික විදුලි කේත (උදා: ඇමරිකා එක්සත් ජනපදයේ NEC) පිළිපදින්න.
- මෙම පරිපථ කඩනය නිශ්චිත වෝල්ටීයතාවයක් සඳහා නිර්මාණය කර ඇත.tage සහ වත්මන් ශ්රේණිගත කිරීම්. මෙම ශ්රේණිගත කිරීම් ඉක්මවා නොයන්න.
3. නිෂ්පාදන ලක්ෂණ
The Noark B1H UL 489 Miniature Circuit Breaker offers the following key features:
- UL 489 ලැයිස්තුගත කර ඇත: Certified for branch circuit protection, ensuring high safety and performance standards.
- 3-ධ්රැව වින්යාසය: Provides protection for three-phase electrical systems.
- 15 Ampපෙර ශ්රේණිගත කිරීම: Suitable for circuits requiring 15A overcurrent protection.
- D-Curve Tripping Characteristic: Designed for circuits with high inrush currents, such as motors or transformers, providing delayed tripping for short-duration overloads.
- ඉහළ බාධා කිරීමේ ධාරිතාව: 10 kA at 480Y/277 Vac, capable of safely interrupting high fault currents.
- Box Lug Terminals: Facilitates secure and reliable wire connections.
- Plug-In Mount: Designed for easy installation into compatible panelboards or enclosures.
රූපය 3.1: ඉදිරිපස view of the Noark B1H UL 489 3-Pole Miniature Circuit Breaker, showing the ON/OFF switch and terminal connections.
4. පිහිටුවීම සහ ස්ථාපනය
Installation of the Noark B1H Miniature Circuit Breaker must be performed by a qualified electrician in accordance with all applicable electrical codes and standards.
- විදුලිය විසන්ධි කිරීම: Before beginning any work, ensure that the main power supply to the panelboard or enclosure is completely disconnected and locked out/tagged out. Verify zero voltagසුදුසු පරීක්ෂණ උපකරණයක් සමඟ.
- සවි කිරීම: The B1H circuit breaker is designed for plug-in mounting. Align the breaker with the appropriate slots on the bus bar within the panelboard and firmly push it into place until it is securely seated.
- රැහැන් සම්බන්ධතා:
- Identify the line (incoming power) and load (outgoing circuit) terminals. The line terminals are typically at the top, and load terminals at the bottom, but always refer to the markings on the breaker.
- Strip the insulation from the circuit wires to the length specified by the breaker's terminal design (typically indicated on the breaker or in its documentation).
- Insert the stripped wires into the box lug terminals. For 3-pole breakers, connect the three phase conductors to the respective terminals.
- Tighten the terminal screws to the torque specifications provided by the manufacturer. Over-tightening can damage the terminals, while under-tightening can lead to loose connections and overheating.
- සත්යාපනය: Double-check all connections for tightness and correct polarity. Ensure no bare wires are exposed outside the terminals.
- පැනල වැසීම: Once installation is complete and verified, close the panelboard cover securely.
- බල පුනස්ථාපනය: ප්රධාන සේවා පැනලයට බලය ප්රතිසාධනය කරන්න.
රූපය 4.1: පැත්ත view of a Miniature Circuit Breaker, illustrating the general form factor and potential DIN rail mounting clip.
5. මෙහෙයුම් උපදෙස්
The Noark B1H Miniature Circuit Breaker operates with a simple ON/OFF toggle mechanism and automatically trips in response to overcurrent conditions.
- සක්රිය කිරීම: To energize the circuit, push the toggle handle firmly to the "ON" position.
- අක්රිය කිරීම: To de-energize the circuit, push the toggle handle firmly to the "OFF" position.
- අනතුරට පත් තත්ත්වය: If an overload or short circuit occurs, the breaker will automatically trip. The toggle handle will move to a central or "TRIPPED" position, which is typically between ON and OFF.
- ට්රිප්ඩ් බ්රේකර් එකක් නැවත සැකසීම:
- First, identify and resolve the cause of the trip (e.g., unplug overloaded devices, fix short circuits).
- Push the toggle handle completely to the "OFF" position. You may feel a slight click as it resets internally.
- Then, push the toggle handle firmly to the "ON" position to restore power to the circuit.
සටහන: If the breaker repeatedly trips, do not continue to reset it without investigating the underlying electrical issue. Persistent tripping indicates a serious problem that requires immediate attention from a qualified electrician.
6. නඩත්තු කිරීම
Noark B1H Miniature Circuit Breakers are designed for long-term, reliable operation with minimal maintenance. However, periodic inspection is recommended to ensure continued safety and performance.
- දෘශ්ය පරීක්ෂාව (වාර්ෂිකව): With power disconnected, visually inspect the breaker and its terminals for any signs of damage, discoloration, loose connections, or corrosion.
- පිරිසිදු කිරීම: If necessary, gently clean the exterior of the breaker with a dry, lint-free cloth. Do not use liquid cleaners or solvents.
- පර්යන්ත තද බව: Periodically check the tightness of the terminal screws, especially after initial installation and during routine electrical system checks. Re-torque to manufacturer specifications if needed.
- පරීක්ෂා කිරීම: While not typically required for residential or light commercial applications, in some industrial settings, periodic functional testing of circuit breakers may be part of a preventative maintenance program. This should only be performed by certified professionals using specialized equipment.
වැදගත්: Do not attempt to open or repair the circuit breaker. If the breaker is damaged or malfunctions, it must be replaced by a new, equivalent unit.
7. දෝශ නිරාකරණය
Most issues with circuit breakers relate to tripping. Understanding why a breaker trips is key to troubleshooting.
| ගැටලුව | විය හැකි හේතුව | විසඳුම |
|---|---|---|
| නිතර බ්රේකර් චාරිකා. |
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| බ්රේකරය නැවත සකසනු නොලැබේ. |
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| බ්රේකරය ස්පර්ශයට උණුසුම් බවක් දැනේ. |
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Always consult a qualified electrician for any electrical issues you are unable to safely diagnose or resolve.
8. පිරිවිතර
| පරාමිතිය | වටිනාකම |
|---|---|
| වෙළඳ නාමය | නෝර්ක් |
| ආකෘතිය | B1H3D15 (Part Number: 1000846) |
| පරිපථ කඩන වර්ගය | කුඩා පරිපථ කඩනය (MCB) |
| සම්මතය | යූඑල් 489 ලැයිස්තුගත කර ඇත |
| ධ්රැව සංඛ්යාව | 3P |
| ශ්රේණිගත ධාරාව | 15A |
| ශ්රේණිගත කළ වෙළුමtage | 480Y/277 Vac |
| බාධා කිරීමේ ධාරිතාව (kA) | 10 kA |
| ට්රිපින් වක්රය | D වක්රය |
| ටර්මිනල් වර්ගය | පෙට්ටි ලග් |
| සවිකිරීමේ වර්ගය | ප්ලග්-ඉන් මවුන්ට් |
| මානයන් (ආසන්න වශයෙන්) | 6 x 6 x 6 අඟල් (පැකේජ මානයන්) |
9. වගකීම් සහ සහාය
Specific warranty terms and conditions for the Noark B1H UL 489 Miniature Circuit Breaker are provided by the manufacturer, Noark. Please refer to the official Noark website or the documentation included with your purchase for detailed warranty information, including coverage period and claims procedures.
For technical support, product inquiries, or assistance with troubleshooting beyond the scope of this manual, please contact Noark customer service directly. Contact information can typically be found on the manufacturer's official webඅඩවිය හෝ නිෂ්පාදන ඇසුරුම්කරණය.
නිෂ්පාදකයා: නෝර්ක්
Webඅඩවිය: www.noark-electric.com (Note: This is a general link and may not be the exact support page. Please verify on product packaging.)
