DIHOOL DHM3Z-320A 320 Amp DC Circuit Breaker Instruction Manual

1. Производ је готовview

The DIHOOL DHM3Z-320A is a 320 Amp DC Circuit Breaker designed for robust electrical system protection. This 2-pole, 1000V device features a 20kA breaking capacity and a thermal magnetic trip mechanism, making it suitable for various high-power DC applications.

Кључне карактеристике:

• Bidirectional Switch: Capable of tripping effectively during short circuits on both supply and load sides, mitigating overheating and fire risks.
• High-Capacity DC Circuit Breaker: Provides reliable overload and short-circuit protection for heavy-duty DC electrical systems.
• Thermal Magnetic Trip: Advanced technology ensures precise protection against circuit overloads and short circuits.
• Silver Contacts: Features 50% silver in moving contacts and 85% silver in stationary contacts for superior conductivity, durability, and corrosion resistance.
• Хигх Волtage & Breaking Capacity: Operates at 1000V with a 20kA short-circuit breaking capacity at 1000V.
• Разноврсна примена: Suitable for photovoltaic systems, batteries, UPS systems, RVs, marine equipment, and trucks.

2. Садржај пакета

Verify that all items are present in the package before installation.

• 1 x DIHOOL DHM3Z-320A 320 Amp DC Circuit Breaker (MCCB)
• 2 x Clapboards

3. Спецификације

4. Инсталација

4.1 Мере предострожности

• Уверите се да су сви извори напајања искључени пре инсталације.
• Инсталацију треба да изврши квалификовано особље у складу са локалним електричним прописима и прописима.
• Носите одговарајућу личну заштитну опрему (ЛЗО), укључујући изоловане рукавице и заштиту за очи.
• Verify correct polarity when connecting DC circuits.

4.2 Дијаграм ожичења

Refer to the following diagram for typical wiring connections in a solar power system. The circuit breaker should be installed between the battery/inverter and the load/utility power as shown.

4.3 Методе монтаже

The DHM3Z-320A circuit breaker is designed for screw mounting. Choose an appropriate mounting surface and hardware based on the installation environment.

• Plastic Sheeting: Use screws and nuts for secure attachment.
• Vertical Wooden Board: Use expansion screws and self-tapping screws.
• Iron Plate: Use screws and nuts.

5. Операција

The circuit breaker features a toggle handle for switching the circuit on and off, and a red button for manual tripping.

• To Switch OFF: Push the handle DOWN. This disconnects the circuit.
• To Switch ON: Push the handle UP. This connects the circuit.
• To Trip Manually: Press the RED button. This will immediately open the circuit, regardless of the handle position.

Важна напомена: If the circuit breaker is in a tripped (OFF) state, you may be unable to push the handle directly UP to the ON position. In such cases, first push the handle fully DOWN to reset the mechanism, then push it UP to restore power.

6. Карактеристике и технологија

6.1 High-Strength Plastic Shell

The circuit breaker is encased in a high flame-retardant plastic shell, offering excellent insulation performance and protection. This design ensures durability and reliable operation in outdoor environments and various weather conditions.

6.2 Silver Contacts and Arc Separators

The device incorporates silver contacts for high current carrying capacity and improved conductivity. High-quality arc separators with thickened copper parts are used to ensure a more stable current flow and enhanced arc extinguishing performance.

6.3 Thickened Arc Extinguishing Hood

The circuit breaker features a thickened arc extinguishing hood, which provides superior arc extinguishing performance compared to standard designs. This enhances safety and reliability during fault conditions.

6.4 Tripping Sensitivity

The DHM3Z-320A DC Circuit Breaker offers a tripping sensitivity of 0.1 to 0.2 seconds, providing rapid protection against electrical faults.

7. Пријаве

The DIHOOL DHM3Z-320A DC Circuit Breaker is suitable for a variety of demanding DC applications, including:

• Photovoltaic (Solar) Power Generation Systems
• Wind Power Generation Systems
• Rail Transit Power Distribution Systems
• Infrastructure Construction
• УПС Системс
• Баттери Банкс
• RVs and Marine Equipment

8. Одржавање

Regular inspection of the circuit breaker is recommended to ensure optimal performance and safety. Check for any signs of physical damage, loose connections, or discoloration. Keep the area around the circuit breaker clean and free from obstructions. Do not attempt to repair the circuit breaker yourself; contact a qualified electrician if maintenance or repair is required.

КСНУМКС. Решавање проблема

Ако се прекидач често искључи или не ради исправно, размотрите следеће:

• Честа путовања: This may indicate an overload or a short circuit in the connected system. Disconnect loads and check for faults. Ensure the total current draw does not exceed the breaker's rated capacity.
• Неуспех ресетовања: If the breaker does not reset after pushing the handle down and then up, there might be a persistent fault or internal damage.
• прегревање: Check for loose connections or excessive current draw.

For any persistent issues or complex problems, consult a qualified electrician or contact DIHOOL customer support.

10. Гаранција и подршка

For warranty information and technical support, please refer to the product packaging or contact DIHOOL customer service directly. Keep your purchase receipt for warranty claims.