1. Pengenalan
This manual provides essential information for the safe and effective installation, operation, and maintenance of the Eaton Heinemann KD1-1 Thermal Circuit Breaker. Please read this manual thoroughly before proceeding with any installation or operation.
The KD1-1 is a single-pole (1P) thermal circuit breaker designed for protection in electrical circuits up to 250V AC and 50V DC, with a current rating of 1 Ampere. It is typically panel-mounted and features a push-to-reset mechanism.
2. Maklumat Keselamatan
AMARAN: Risiko Renjatan Elektrik atau Kebakaran.
- Pemasangan dan servis hendaklah dilakukan oleh kakitangan yang berkelayakan sahaja.
- Always disconnect power to the circuit before installing, servicing, or removing the circuit breaker.
- Ensure that the circuit breaker's voltage and current ratings match the application requirements.
- Do not use this device in life-support applications or where failure could result in serious injury or property damage.
- Mematuhi semua kod dan peraturan elektrik tempatan dan nasional.
3. Persediaan dan Pemasangan
The KD1-1 circuit breaker is designed for panel mounting.
- Penyediaan: Ensure the power supply to the circuit is completely disconnected and verified with a voltage penguji.
- Pemasangan: Insert the circuit breaker into the designated panel cutout. Secure it according to the panel design, typically using a mounting nut or clip (not included).
- Pendawaian: Connect the circuit wires to the appropriate terminals on the circuit breaker. Ensure all connections are tight and secure to prevent loose contacts, which can cause overheating or arcing. Refer to the wiring diagram for your specific application.
- Pengesahan: Double-check all connections and ensure the circuit breaker is firmly mounted before restoring power.

Rajah 1: Eaton Heinemann KD1-1 Thermal Circuit Breaker. This image displays the cylindrical body of the circuit breaker with two terminals extending from one end. The other end features a white circular button labeled 'PUSH RE-CIRK-IT', indicating its reset function.
4. Arahan Operasi
The KD1-1 is a thermal circuit breaker designed to protect electrical circuits from overcurrent conditions. It operates automatically and can be manually reset.
- Operasi Biasa: Under normal operating conditions, the circuit breaker allows current to flow through the circuit.
- Overcurrent Trip: If an overcurrent condition (e.g., overload or short circuit) occurs, the internal thermal mechanism will heat up and trip, interrupting the circuit to prevent damage to equipment or wiring. When tripped, the white 'PUSH RE-CIRK-IT' button will typically pop out.
- Menetapkan semula Pemutus: After the circuit breaker trips, identify and resolve the cause of the overcurrent. Once the fault is cleared, firmly press the 'PUSH RE-CIRK-IT' button (as shown in Figure 1) to reset the breaker and restore power to the circuit. If the breaker immediately trips again, do not force it; investigate the underlying electrical issue further.
5. Penyelenggaraan
The Eaton Heinemann KD1-1 Thermal Circuit Breaker requires minimal maintenance.
- Pemeriksaan Berkala: Periksa pemutus litar secara berkala untuk sebarang tanda kerosakan fizikal, perubahan warna atau sambungan yang longgar.
- Pembersihan: If necessary, gently clean the exterior of the circuit breaker with a dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Elakkan Tampering: Do not attempt to open, modify, or repair the circuit breaker. Doing so will void any warranty and could compromise safety.
6. Penyelesaian masalah
If you encounter issues with your KD1-1 circuit breaker, consider the following:
- Perjalanan Pemutus Kerap:
- Lebihan beban: Litar mungkin menarik lebih arus daripada pemutus 1 Ampere rating. Reduce the load on the circuit.
- Litar pintas: A direct connection between live and neutral/ground wires can cause a sudden surge. Inspect wiring for damage or faulty appliances.
- Perkakas rosak: Disconnect appliances one by one to identify a defective unit.
- Pemutus Tidak Tetapkan Semula:
- Ensure the overcurrent condition has been resolved. The breaker may not reset if the fault is still present.
- If the breaker still does not reset after clearing the fault, it may be damaged and require replacement.
- Tiada Kuasa untuk Litar:
- Check if the breaker has tripped (button popped out).
- Verify the main power supply to the panel.
- Periksa sambungan pendawaian untuk kelonggaran atau kerosakan.
Jika langkah penyelesaian masalah tidak menyelesaikan isu, rujuk juruelektrik bertauliah.
7. Spesifikasi
| Parameter | Nilai |
|---|---|
| Jenama | Eaton Heinemann |
| Model | KD1-1 |
| Penilaian Semasa | 1 Ampsebelum |
| Voltage Rating (AC) | 250V |
| Voltage Rating (DC) | 50V |
| Bilangan Tiang | 1 |
| Jenis Pemasangan | Pemasangan Panel |
| Jenis Pemutus Litar | terma |
| Mematuhi RoHS | ya |
8. Maklumat Waranti
Eaton products are manufactured to high standards. For specific warranty terms and conditions applicable to the KD1-1 Thermal Circuit Breaker, please refer to the official Eaton warranty documentation provided at the time of purchase or visit the Eaton website. Warranty coverage typically applies to defects in materials and workmanship under normal use.
9. Sokongan
For technical assistance, product inquiries, or further support, please contact Eaton customer service or visit the official Eaton website. When contacting support, please have your product model number (KD1-1) available.
Eaton Official Webtapak: www.eaton.com





