Uživatelská příručka k hlavnímu jističi DC DIHOOL DHM1B-2P-160A-3

1. Úvod

This manual provides essential information for the safe and effective installation, operation, and maintenance of your DIHOOL DHM1B-2P-160A-3 DC Main Circuit Breaker. Please read this manual thoroughly before installation and use, and retain it for future reference.

2. Bezpečnostní informace

VAROVÁNÍ: Nebezpečí úrazu elektrickým proudem. Instalaci a údržbu by měl provádět pouze kvalifikovaný personál.

• Před instalací nebo servisem jističe vždy odpojte napájení.
• Ensure proper wiring and connections to prevent short circuits and overloads.
• Do not operate the circuit breaker if it is damaged or appears to be malfunctioning.
• Dodržujte všechny místní a národní elektrické předpisy.
• This device is designed for DC applications only. Do not use with AC systems.

3. Konec produktuview a funkce

The DIHOOL DHM1B-2P-160A-3 is a 2-pole, 160 Amp DC main circuit breaker designed for various DC applications, including photovoltaic systems, UPS, battery banks, RVs, marine vessels, and power stations. It provides essential protection against circuit overload and short circuits.

Klíčové vlastnosti:

• Thermal magnetic trigger for reliable protection.
• Ochrana proti přetížení obvodu.
• Circuit short circuit protection.
• Isolation circuit functionality.
• Easy screw-in panel installation.
• Suitable for DC 12V-400V systems.

Obrázek 3.1: Přední strana view of the DIHOOL DHM1B-2P-160A-3 DC Main Circuit Breaker, showing the ON/OFF switch and product labeling.

4. Specifikace

Image 4.1: Diagram showing the dimensions of the circuit breaker (73mm width, 163mm height).

Obrázek 4.2: Boční strana view illustrating the 86mm depth of the circuit breaker.

5. Instalace a nastavení

The DIHOOL DHM1B-2P-160A-3 circuit breaker is designed for screw-in panel installation. Ensure the installation location is dry, well-ventilated, and protected from direct sunlight and extreme temperatures.

5.1 Připojení kabelů:

1. Příprava: Before making any connections, ensure all power sources are disconnected and verified to be off.
2. Montáž: Securely mount the circuit breaker to a panel using appropriate screws.
3. Měřič drátu: The terminals accept wire gauges from 16-70mm² (6 AWG - 2/0 AWG). Use appropriate wire sizes for the 160A current rating to prevent overheating.
4. Spojení: Connect the DC positive (+) and negative (-) cables to the corresponding terminals on the circuit breaker. Ensure connections are tight and secure. The circuit breaker supports "No Polarity" for DC 12V-240V applications, meaning input and output terminals can be connected without strict positive/negative orientation for the breaker itself, but the overall system polarity must be maintained.
5. Ověření: Před obnovením napájení dvakrát zkontrolujte správnost a těsnost všech připojení.

Obrázek 5.1: Příkladample wiring diagram showing the circuit breaker connected between a 12V/24V battery and a power inverter, illustrating typical DC application.

Image 5.2: Close-up of the circuit breaker terminals, indicating "No Polarity" for DC 12V-240V connections, highlighting flexibility in wiring.

Obrázek 5.3: View of the circuit breaker with thick gauge wires connected to the terminals, demonstrating proper wire insertion.

6. Návod k obsluze

The circuit breaker features a simple ON/OFF toggle switch and a TEST button for verifying functionality.

6.1 Switching ON/OFF:

• To switch the circuit breaker ON, push the handle UP.
• To switch the circuit breaker VYPNUTO, push the handle DOWN.
• Důležitá poznámka: If the circuit breaker has tripped (due to overload or short circuit), the handle will be in an intermediate "Trip OFF" state. To reset, first push the handle fully DOWN to the OFF position, then push it UP to the ON position.

6.2 Using the TEST Button:

• The red "TEST" button is located on the front of the circuit breaker.
• To test the tripping mechanism, press the red "TEST" button. The circuit breaker should immediately trip to the "Trip OFF" state, interrupting the circuit.
• After testing, reset the circuit breaker by pushing the handle fully DOWN, then UP to the ON position.
• Regular testing (e.g., monthly) is recommended to ensure proper operation.

Image 6.1: Visual guide for operating the circuit breaker, showing the ON/OFF positions and the TEST button. It also illustrates the reset procedure after a trip.

7. Údržba

The DIHOOL DHM1B-2P-160A-3 DC Main Circuit Breaker requires minimal maintenance. However, periodic checks are recommended to ensure continued safe and reliable operation.

• Vizuální kontrola: Pravidelně kontrolujte jistič, zda nevykazuje známky fyzického poškození, změny barvy nebo uvolněných spojů.
• Těsnost svorek: Periodically check that all terminal connections are tight. Loose connections can lead to overheating and poor performance.
• Čištění: If necessary, gently clean the exterior of the circuit breaker with a dry, soft cloth. Do not use abrasive cleaners or solvents.
• Test funkčnosti: Perform the TEST button procedure (Section 6.2) periodically to confirm the tripping mechanism is functional.

8. Řešení problémů

Tato část se zabývá běžnými problémy, se kterými se můžete setkat u jističe.

• Issue: Circuit breaker trips frequently.
  • Možná příčina: Overload in the circuit.
  • Řešení: Reduce the load on the circuit. Ensure the total current drawn does not exceed 160 Amps.
  • Možná příčina: Zkrat v kabeláži nebo připojeném zařízení.
  • Řešení: Inspect all wiring and connected devices for short circuits. Repair or replace faulty components.
  • Možná příčina: Vadný jistič.
  • Řešení: If overload and short circuit issues are ruled out, the breaker itself might be faulty. Replace the circuit breaker.
• Issue: Circuit breaker does not switch ON.
  • Možná příčina: The breaker is in the "Trip OFF" state.
  • Řešení: Push the handle fully DOWN to the OFF position, then push it UP to the ON position.
  • Možná příčina: No power supply to the breaker.
  • Řešení: Check the upstream power source and connections.
• Issue: Circuit breaker feels hot.
  • Možná příčina: Overload or loose connections.
  • Řešení: Immediately disconnect power. Check for overloads and tighten all terminal connections. If the issue persists, replace the breaker.

9. Záruka a podpora

For warranty information or technical support, please contact DIHOOL customer service through your purchase platform or visit the official DIHOOL website. Please have your model number (DHM1B-2P-160A-3) and purchase details ready when contacting support.