1. Úvod
This manual provides essential information for the safe and effective installation, operation, and maintenance of your Legrand DNX 4500 Circuit Breaker. This device is designed for the protection of your electrical installation, ensuring safety and reliability. Please read this manual thoroughly before proceeding with any installation or operation.
The Legrand DNX 4500 is a Uni + Neutral 230 V circuit breaker with a 4.5 kA breaking capacity, suitable for various electrical panel applications. It is compatible with Legrand Drivia electrical panels and horizontal combs, conforming to the NF EN 60898-1 standard.
2. Bezpečnostní informace
VAROVÁNÍ: Electrical work should only be performed by qualified and authorized personnel. Failure to follow these safety instructions can result in electric shock, fire, serious injury, or death.
- Always disconnect power at the main service panel before installing, servicing, or removing the circuit breaker.
- Používejte vhodné osobní ochranné prostředky (OOP), jako jsou izolační rukavice a ochranné brýle.
- Ujistěte se, že všechna elektroinstalace jsou bezpečná a splňují místní a národní elektrotechnické předpisy.
- Nepoužívejte jistič, pokud se jeví poškozený.
- Ověřte svtage and current ratings of the circuit breaker match your application requirements.
- Toto zařízení je určeno pro použití v suchých vnitřních prostorách, pokud není uvedeno jinak.
3. Konec produktuview
The Legrand DNX 4500 Circuit Breaker (Model LEG406773) is a miniature circuit breaker designed for overcurrent protection in electrical circuits. Key features include:
- Uni + Neutral 230 V: Designed for single-phase circuits with neutral.
- DNX² 4500 - 4.5 kA: Indicates a breaking capacity of 4.5 kiloamperes.
- Aktuální hodnocení: 10 Amps.
- Typy připojení: Supports screw/screw and car/car connections for versatile installation.
- Feed Controls: Integrated controls for managing power flow.
- Kompatibilita: Compatible with Legrand Drivia electrical panels and horizontal combs.
- Osvědčení: Conforms to NF EN 60898-1 standard.

Obrázek 1: Přední strana view of the Legrand DNX 4500 Circuit Breaker. This image shows the grey casing, the toggle switch for operation, and the branding.
4. Nastavení a instalace
Installation of the Legrand DNX 4500 Circuit Breaker must be performed by a qualified electrician in accordance with all applicable electrical codes and standards.
- Odpojení napájení: Before beginning any work, ensure that the main power supply to the electrical panel is completely disconnected and locked out.
- Montáž: The circuit breaker is designed for panel mounting. Securely attach the breaker to the DIN rail within the electrical panel.
- Připojení kabeláže:
- Connect the incoming phase (Uni) and neutral (N) wires to the designated terminals.
- Connect the outgoing load wires to the corresponding terminals.
- Ensure all screw terminals are tightened to the manufacturer's specified torque to prevent loose connections and overheating.
- The circuit breaker supports both screw/screw and car/car connection types.
- Kontrola kompatibility: Ensure compatibility with Legrand Drivia electrical panels and horizontal combs for proper integration.
- Ověření: After installation, double-check all connections and ensure the breaker is securely mounted.
- Obnovení napájení: Po dokončení a ověření instalace obnovte napájení hlavního servisního panelu.
5. Návod k obsluze
The Legrand DNX 4500 Circuit Breaker operates as a protective device for your electrical circuits.
- Pozice ON: To energize the circuit, push the toggle switch to the "ON" position (typically upwards).
- Poloha OFF: To de-energize the circuit, push the toggle switch to the "OFF" position (typically downwards).
- Zapnutá poloha: If an overcurrent or short circuit occurs, the circuit breaker will automatically trip to an intermediate position (often center or fully down, depending on the model) to protect the circuit.
- Resetování vypnutého jističe:
- Nejprve identifikujte a odstraňte příčinu vypnutí (např. odpojte přetížené spotřebiče, opravte zkraty).
- Push the toggle switch firmly to the "OFF" position.
- Poté přepněte přepínač do polohy „ON“ pro obnovení napájení.
- If the breaker trips immediately again, do not attempt to reset it repeatedly. Consult a qualified electrician.
6. Údržba
The Legrand DNX 4500 Circuit Breaker is designed for long-term, reliable operation with minimal maintenance. However, periodic checks are recommended:
- Vizuální kontrola: Pravidelně kontrolujte jistič, zda nevykazuje známky fyzického poškození, změny barvy nebo uvolněných spojů.
- Čištění: Keep the area around the circuit breaker clean and free from dust and debris. Use a dry, soft cloth for cleaning; never use liquids.
- Odborná kontrola: It is advisable to have your electrical system, including circuit breakers, inspected by a qualified electrician periodically (e.g., every 5-10 years) to ensure continued safe operation.
- Ne Tamper: Never attempt to open or repair the circuit breaker yourself. Refer all servicing to qualified personnel.
7. Řešení problémů
If you encounter issues with your Legrand DNX 4500 Circuit Breaker, consider the following common scenarios:
- Časté vypínání jističe:
- Přetížení: Obvod může odebírat příliš mnoho proudu. Odpojte od obvodu některá zařízení.
- Zkrat: A direct connection between live and neutral/ground wires. This requires immediate investigation by an electrician.
- Vadný spotřebič: An appliance connected to the circuit may be defective. Try isolating appliances to identify the culprit.
- Jistič se neresetuje:
- Ensure the cause of the trip has been resolved.
- Push the switch firmly to the "OFF" position before attempting to reset to "ON".
- If it still doesn't reset, the breaker itself might be faulty, or there's a persistent fault in the circuit. Do not force it; consult an electrician.
- No Power to Circuit (Breaker ON):
- Check if other breakers in the panel are tripped.
- Verify main power supply to the panel.
- Inspect wiring connections for looseness or damage (with power off).
- If all checks fail, the breaker may be defective.
For persistent issues or if you are unsure, always contact a qualified electrician.
8. Specifikace
| Funkce | Specifikace |
|---|---|
| Značka | Legrand |
| Číslo modelu | LEG406773 |
| Aktuální hodnocení | 10 Amps |
| svtage | 230 voltů |
| Typ jističe | Standard (Miniature Circuit Breaker) |
| Breaking Capacity | 4.5 kA |
| Počet Poláků | 1 (Uni + Neutral) |
| Typ montáže | Panel Mount (DIN rail compatible) |
| Typy připojení | Screw/Screw, Car/Car |
| Barva | Šedá |
| Materiál | Polyamid-imid |
| Hmotnost položky | 3.52 unce |
| Osvědčení | NF EN 60898-1 |
| UPC | 793518542826 |
9. Záruka a podpora
Legrand products are manufactured to high-quality standards. For specific warranty information, please refer to the documentation provided with your purchase or visit the official Legrand webmísto.
For technical support, product inquiries, or assistance with installation, please contact Legrand customer service or your local authorized distributor. Contact information can typically be found on the official Legrand webmísto: www.legrand.com





