1. Proizvod je gotovview
The ABB Tmax XT4NU3250EFF000XXX is a high-performance molded case circuit breaker designed for reliable protection in various electrical systems. This device features a frame size XT4, rated for up to 250A, with voltage ratings of 600V (UL) and 690V (IEC). It incorporates an Ekip LS/I electronic trip unit, providing Long-Time (L), Short-Time (S), and Instantaneous (I) protection functions. This 3-pole circuit breaker is engineered for safety and efficiency in industrial and commercial applications.

An image showing the ABB Tmax XT4NU3250EFF000XXX Molded Case Circuit Breaker. The device is dark gray with a red and white handle, indicating its operational status. Various labels and connection points are visible on its front and sides.
2. Sigurnosne informacije
Uvijek se pridržavajte sljedećih sigurnosnih mjera opreza kako biste spriječili ozljede ili oštećenje opreme:
- Installation, maintenance, and repair must be performed by qualified personnel only.
- Ensure all power sources are disconnected and locked out before working on the circuit breaker or associated circuitry.
- Use appropriate personal protective equipment (PPE) such as insulated gloves, safety glasses, and arc-flash protective clothing.
- Potvrdite tačan voltage i nazivne struje prije instalacije.
- Ne koristite prekidač ako izgleda oštećeno ili neispravno.
3. Postavljanje i instalacija
The ABB Tmax XT4NU3250EFF000XXX circuit breaker is designed for DIN Rail Mount installation. Proper installation is crucial for safe and reliable operation.
3.1 Provjere prije instalacije
- Inspect the circuit breaker for any physical damage.
- Confirm that the product specifications match the system requirements.
- Ensure the mounting surface is clean and secure.
3.2 Montaža
- Securely attach the circuit breaker to a standard DIN rail.
- Osigurajte odgovarajuću ventilaciju oko uređaja kako biste spriječili pregrijavanje.
3.3 Ožičenje
- Connect the main power supply conductors to the appropriate terminals (Line/Load) as indicated on the device.
- Osigurajte da su svi spojevi čvrsti i sigurni kako biste spriječili labave kontakte i iskrenje.
- Follow all local and national electrical codes for wiring practices.
- Verify correct polarity and phase sequence for multi-phase installations.
4. Uputstvo za upotrebu
The ABB Tmax XT4NU3250EFF000XXX circuit breaker is designed for straightforward operation.
4.1 Uključivanje/isključivanje
- Za UKLJUČIVANJE: Push the operating handle firmly to the 'ON' position.
- Za ISKLJUČIVANJE: Push the operating handle firmly to the 'OFF' position.
4.2 Indikacija i resetiranje isključenja
- If an overload or short-circuit occurs, the circuit breaker will automatically trip, moving the handle to an intermediate 'TRIPPED' position.
- Za resetiranje: First, move the handle fully to the 'OFF' position. Then, push the handle to the 'ON' position.
- Before resetting, investigate and resolve the cause of the trip. Repeated tripping indicates an underlying electrical issue.
5. Održavanje
Regular maintenance ensures the longevity and reliable operation of your circuit breaker.
5.1 Redovna inspekcija
- Povremeno provjeravajte prekidač da li ima znakova fizičkih oštećenja, promjene boje ili labavih spojeva.
- Check for dust accumulation and keep the area around the breaker clean.
5.2 Čišćenje
- Prije čišćenja provjerite je li napajanje isključeno.
- Use a dry, lint-free cloth to wipe down the exterior of the circuit breaker. Avoid using solvents or abrasive cleaners.
5.3 Profesionalno servisiranje
For internal inspection, testing, or repair, contact qualified ABB service personnel or an authorized service center. Do not attempt to disassemble the circuit breaker yourself.
6. Otkrivanje problema
This section provides guidance for common issues. For complex problems, consult a qualified electrician.
6.1 Često isključivanje prekidača
- Mogući uzrok: Preopterećenje.
- Akcija: Reduce the load on the circuit by unplugging some devices.
- Mogući uzrok: Kratki spoj.
- Akcija: Inspect wiring and connected devices for faults. This requires professional attention.
- Mogući uzrok: Ground fault (if applicable to the specific trip unit configuration).
- Akcija: Consult a qualified electrician to identify and rectify the ground fault.
6.2 Breaker Will Not Reset
- Mogući uzrok: Persistent fault (overload or short circuit).
- Akcija: Ensure the cause of the trip has been resolved. If the fault persists, the breaker will not reset.
- Mogući uzrok: Unutrašnje oštećenje prekidača.
- Akcija: If no fault is present and the breaker still won't reset, it may be damaged and require replacement by a qualified professional.
7. Specifikacije
Detailed technical specifications for the ABB Tmax XT4NU3250EFF000XXX Molded Case Circuit Breaker:
| Specifikacija | Vrijednost |
|---|---|
| Brand | Fig |
| Model | XT4NU3250EFF000XXX |
| Current Rating | 250 Amps |
| Voltage Rating (UL) | 600V |
| Voltage Rating (IEC) | 690V |
| Vrsta putovanja | Ekip LS/I (Electronic, LS/I Protection) |
| Number Of Poles | 3 |
| Tip prekidača | LS |
| Vrsta montaže | Montaža na DIN šinu |
| Dimenzije paketa | 8.26 x 6.49 x 6.1 inča |
| Težina | 5.51 funti |
| Datum prve dostupnosti | 25. juna 2018 |
8. Informacije o garanciji
ABB products are manufactured to high standards and typically come with a manufacturer's warranty. For specific warranty terms and conditions applicable to your ABB Tmax XT4NU3250EFF000XXX circuit breaker, please refer to the official documentation provided with your purchase or visit the official ABB webSačuvajte dokaz o kupovini za slučaj reklamacije.
9. Podrška i kontakt
For technical assistance, product inquiries, or service requests, please contact ABB customer support. You can find contact information and additional resources on the official ABB website.
Službenik ABB-a Webstranica: Visit the ABB Store on Amazon
Always provide the full model number (XT4NU3250EFF000XXX) when contacting support to ensure accurate assistance.





