1. Introduzione
This manual provides essential information for the safe and effective use of the DIHOOL DHM1B-2P-200A DC Molded Case Circuit Breaker (MCCB). This device is designed for high current battery protection in various DC applications, including electric vehicles, Uninterruptible Power Supplies (UPS), inverters, and photovoltaic combiner boxes. Please read these instructions carefully before installation and operation.
2. Specifiche
The DIHOOL DHM1B-2P-200A circuit breaker features the following technical specifications:
| Specificazione | Valore |
|---|---|
| Modello | DHM1B-2P-200A |
| Vol. operativo nominaletage | DC 12-400V |
| Poli | 2P |
| Corrente nominale | 200A |
| Breaking Capacity (Ics) | 15 kA |
| Breaking Capacity (Icu) | 25 kA |
| Categoria di utilizzo | A |
| Vita meccanica | 6,000 volte |
| Vita elettrica | 1,000 volte |
| Metodo di installazione | Panel screw installation |
| Conformità standard | IEC60947-2 / GB14048.2 |
| Temperatura di esercizio | da -10℃ a +50℃ |
| Altitudine operativa | 2000 metri |
| Dimensioni del prodotto (P x L x A) | 6.9P x 6.5L x 15A cm |
| Peso dell'articolo | 1.52 chilogrammi |
| Componenti inclusi | terminale |
3. Configurazione e installazione
The DIHOOL DHM1B-2P-200A circuit breaker is designed for panel screw installation. Ensure the installation location is dry, well-ventilated, and within the specified operating temperature range.
3.1 Dimensioni fisiche
Understanding the physical dimensions is crucial for proper panel integration.
3.2 Collegamenti di cablaggio
Proper wiring is essential for safety and performance. The circuit breaker is a 2-pole device designed to protect both positive and negative lines in a DC system.
- Applicable Wire Diameter: The terminals are designed to accommodate wires up to 95mm² (000AWG).
- Dimensioni del terminale: The conductive parts have a thickness of 5mm, and the terminal height is 85mm.
- Polarità: For DC 12V, 24V, 36V, 48V, 96V, 120V, and 240V applications, the circuit breaker supports 'No Polarity' connection, simplifying installation.
4. Istruzioni per l'uso
The circuit breaker provides thermal magnetic trip functionality for circuit overload and short circuit protection.
4.1 Accensione/Spegnimento
The circuit breaker has a clear ON/OFF handle for manual operation.
- Per spegnere: Spingere la maniglia GIÙ nella posizione 'OFF'.
- Per accendere: Spingere la maniglia UP to the 'ON' position.
Nota: If the handle is in the 'Trip OFF' state (between ON and OFF), it cannot be directly pushed UP to ON. First, perform a handle DOWN action (to fully OFF), then push the handle UP to ON to reset and engage the circuit.
4.2 Trip Function
The circuit breaker is equipped with a red 'TEST' button to manually trip the breaker for testing purposes or to isolate the circuit.
- To Trip: Premere il tasto ROSSO button. This will move the handle to the 'Trip OFF' state, indicating no electricity flow.
4.3 Funzionalità di protezione
- Thermal Magnetic Trip: Protects against sustained overcurrents (thermal) and sudden high currents (magnetic).
- Circuit Overload Protection: Automatically trips when current exceeds the rated 200A for a prolonged period.
- Circuit Short Circuit Protection: Instantly trips upon detection of a short circuit. Note that for voltages between 12V-30V, short circuit protection is not active; it is active for 32V-400V.
- Isolation Circuit: Provides a safe means to disconnect power for maintenance or safety.
5. Manutenzione
To ensure the longevity and reliable operation of your DIHOOL DHM1B-2P-200A circuit breaker, follow these general maintenance guidelines:
- Ispezione regolare: Ispezionare periodicamente l'interruttore automatico per verificare la presenza di eventuali segni di danni fisici, scolorimento o collegamenti allentati.
- Pulizia: Keep the circuit breaker free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquid cleaners or solvents.
- Controllo del terminale: Ensure all terminal connections are tight and secure. Loose connections can lead to overheating and potential hazards.
- Funzione di prova: Periodically use the red 'TEST' button to verify the tripping mechanism is functional.
Always disconnect power to the circuit before performing any inspection or maintenance.
6. Risoluzione Dei Problemi
If you encounter issues with your DIHOOL DHM1B-2P-200A circuit breaker, consider the following troubleshooting steps:
- L'interruttore scatta frequentemente:
- Check for overloads: Ensure the connected load does not exceed the 200A rated current.
- Check for short circuits: Inspect wiring for any signs of damage or short circuits.
- Verifica volumetage: Ensure the operating voltage rientra nell'intervallo DC 12-400 V.
- Breaker Does Not Trip:
- Manually test the trip function using the red 'TEST' button. If it does not trip, the unit may be faulty.
- Ensure the current is sufficient to cause a trip for the detected fault (e.g., short circuit protection is not active below 32V).
- Breaker Does Not Stay ON:
- If the handle is in the 'Trip OFF' state, push it fully DOWN to OFF before attempting to push it UP to ON.
- If the breaker immediately trips after being switched ON, a persistent overload or short circuit is present.
If problems persist after performing these checks, consult a qualified electrician or contact DIHOOL customer support.
7. Garanzia e supporto
For information regarding the warranty period and terms for your DIHOOL DHM1B-2P-200A DC Circuit Breaker, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support or further assistance, please reach out to DIHOOL customer service through their official channels.