1. Produk Lebihview
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. Maklumat Keselamatan
Sentiasa patuhi langkah berjaga-jaga keselamatan berikut untuk mengelakkan kecederaan atau kerosakan pada peralatan:
- 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.
- Sahkan voltage and current ratings before installation.
- Do not operate the circuit breaker if it appears damaged or malfunctioning.
3. Persediaan dan Pemasangan
The ABB Tmax XT4NU3250EFF000XXX circuit breaker is designed for DIN Rail Mount installation. Proper installation is crucial for safe and reliable operation.
3.1 Pemeriksaan Pra-Pemasangan
- 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 Pemasangan
- Securely attach the circuit breaker to a standard DIN rail.
- Pastikan pengudaraan yang betul di sekeliling peranti untuk mengelakkan terlalu panas.
3.3 Pendawaian
- Connect the main power supply conductors to the appropriate terminals (Line/Load) as indicated on the device.
- Pastikan semua sambungan adalah ketat dan selamat untuk mengelakkan sentuhan longgar dan lengkok.
- Follow all local and national electrical codes for wiring practices.
- Verify correct polarity and phase sequence for multi-phase installations.
4. Arahan Operasi
The ABB Tmax XT4NU3250EFF000XXX circuit breaker is designed for straightforward operation.
4.1 Menghidupkan / Mematikan
- To Switch ON: Push the operating handle firmly to the 'ON' position.
- To Switch OFF: Push the operating handle firmly to the 'OFF' position.
4.2 Petunjuk Perjalanan dan Tetapkan Semula
- If an overload or short-circuit occurs, the circuit breaker will automatically trip, moving the handle to an intermediate 'TRIPPED' position.
- Untuk Tetapkan Semula: 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. Penyelenggaraan
Penyelenggaraan tetap memastikan jangka hayat dan operasi yang boleh dipercayai bagi pemutus litar anda.
5.1 Pemeriksaan Rutin
- Periksa pemutus litar secara berkala untuk sebarang tanda kerosakan fizikal, perubahan warna atau sambungan yang longgar.
- Check for dust accumulation and keep the area around the breaker clean.
5.2 Pembersihan
- Pastikan bekalan elektrik diputuskan sambungannya sebelum membersihkannya.
- Use a dry, lint-free cloth to wipe down the exterior of the circuit breaker. Avoid using solvents or abrasive cleaners.
5.3 Perkhidmatan Profesional
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. Penyelesaian masalah
This section provides guidance for common issues. For complex problems, consult a qualified electrician.
6.1 Breaker Trips Frequently
- Kemungkinan Punca: Lebihan beban.
- Tindakan: Reduce the load on the circuit by unplugging some devices.
- Kemungkinan Punca: Litar pintas.
- Tindakan: Inspect wiring and connected devices for faults. This requires professional attention.
- Kemungkinan Punca: Ground fault (if applicable to the specific trip unit configuration).
- Tindakan: Consult a qualified electrician to identify and rectify the ground fault.
6.2 Breaker Will Not Reset
- Kemungkinan Punca: Persistent fault (overload or short circuit).
- Tindakan: Ensure the cause of the trip has been resolved. If the fault persists, the breaker will not reset.
- Kemungkinan Punca: Internal damage to the breaker.
- Tindakan: If no fault is present and the breaker still won't reset, it may be damaged and require replacement by a qualified professional.
7. Spesifikasi
Detailed technical specifications for the ABB Tmax XT4NU3250EFF000XXX Molded Case Circuit Breaker:
| Spesifikasi | Nilai |
|---|---|
| Jenama | ABB |
| Model | XT4NU3250EFF000XXX |
| Penilaian Semasa | 250 Amps |
| Voltage Rating (UL) | 600V |
| Voltage Rating (IEC) | 690V |
| Jenis Perjalanan | Ekip LS/I (Electronic, LS/I Protection) |
| Bilangan Tiang | 3 |
| Jenis Pemutus Litar | LS |
| Jenis Pemasangan | Pemasangan DIN Rail |
| Dimensi Pakej | 8.26 x 6.49 x 6.1 inci |
| Berat badan | 5.51 paun |
| Tarikh Mula-mula Tersedia | 25 Jun 2018 |
8. Maklumat Waranti
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 webtapak. Simpan bukti pembelian anda untuk tuntutan waranti.
9. Sokongan dan Hubungan
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 webtapak.
Pegawai ABB Webtapak: Visit the ABB Store on Amazon
Always provide the full model number (XT4NU3250EFF000XXX) when contacting support to ensure accurate assistance.
