คู่มือการใช้งานฟิวส์ Littelfuse JTD-15-ID
Comprehensive guide for the installation, operation, and maintenance of the Littelfuse JTD-15-ID fuse.
1. สินค้าหมดview
The Littelfuse JTD-15-ID is a 15 Amp, 300 VDC, 600 VAC, current-limiting, dual-element time-delay fuse designed for use in all general-purpose circuits. It features a trip indication mechanism for easy identification of a blown fuse.
This fuse provides superior protection for motors, transformers, solenoids, and other inductive loads, as well as for general-purpose circuits. Its time-delay characteristic allows for temporary overcurrents without nuisance tripping, while its current-limiting capability minimizes damage from high fault currents.
รูปที่ 1 : ด้านหน้า view of the Littelfuse JTD-15-ID fuse. The fuse is cylindrical with metal caps on both ends and a green and white label in the center. The label clearly shows "Littelfuse", "JTD 15 ID", and "Indicator". A small window on the label reveals the internal element and a "Good" or "Replace" indicator.
2. ข้อมูลด้านความปลอดภัย
คำเตือน: Electrical shock hazard. Always disconnect power before installing or removing fuses. Only qualified personnel should perform electrical work.
- Ensure the fuse rating (voltage and current) matches the circuit requirements.
- Do not use damaged fuses.
- Always replace a blown fuse with a fuse of the same type and rating.
- ควรสวมอุปกรณ์ป้องกันส่วนบุคคล (PPE) ที่เหมาะสมเมื่อทำงานกับระบบไฟฟ้า
3. การติดตั้ง
The JTD-15-ID fuse is designed for installation into compatible fuse holders or blocks. Ensure the fuse holder is rated for the fuse's voltagอีและปัจจุบัน
- De-energize the Circuit: Before beginning installation, ensure that the electrical circuit is completely de-energized at the main power source. Verify with a voltagอีผู้ทดสอบ
- ระบุตำแหน่งช่องใส่ฟิวส์: Locate the appropriate fuse holder or fuse block in your electrical panel or equipment.
- ใส่ฟิวส์: Carefully insert the JTD-15-ID fuse into the designated fuse holder. Ensure it is seated firmly and correctly.
- ตรวจสอบการเชื่อมต่อ: Confirm that the fuse makes proper electrical contact within the holder.
- เปิดวงจรไฟฟ้าอีกครั้ง: Once the fuse is securely installed, you may re-energize the circuit.
รูปที่ 2: มุม view of the Littelfuse JTD-15-ID fuse. This perspective highlights the "Good" status indicator visible through a small circular window on the green label, confirming the fuse is operational. The "JTD 15 ID" model number is also clearly visible.
4. Operation and Trip Indication
The Littelfuse JTD-15-ID is a passive component designed to protect electrical circuits from overcurrents. It operates by melting an internal element when current exceeds its rated capacity for a specified duration, thereby opening the circuit and preventing damage to equipment.
สัญญาณบ่งชี้การเดินทาง: This fuse features a visual trip indicator. When the fuse blows, a small pin or flag will typically pop out or change color in the indicator window, signaling that the fuse has operated and needs replacement. Refer to the fuse label for the specific indicator appearance (e.g., "Good" vs. "Replace" text, or a visible pin).
รูปที่ 3: ด้านข้าง view of the Littelfuse JTD-15-ID fuse. This image emphasizes the "Indicator" text on the green label, pointing to the mechanism that visually signals when the fuse has tripped. The cylindrical shape and metal end caps are also clearly visible.
5. การบำรุงรักษา
Fuses are generally maintenance-free components. However, periodic inspection of the fuse and its holder is recommended as part of routine electrical system checks.
- การตรวจสอบภาพ: Regularly check the fuse for any signs of physical damage, such as cracks, discoloration, or corrosion.
- Trip Indicator Check: Observe the trip indicator. If it shows a "tripped" state (e.g., "Replace" visible, or pin extended), the fuse has operated and requires replacement.
- การทำความสะอาด: Ensure the fuse and its holder are free from dust, dirt, or debris that could impede proper contact or heat dissipation.
6 การแก้ไขปัญหา
The primary "troubleshooting" for a fuse involves identifying if it has blown and replacing it correctly.
| อาการ | สาเหตุที่เป็นไปได้ | การกระทำ |
|---|---|---|
| Circuit is dead; no power to equipment. | ฟิวส์ขาด |
|
| New fuse blows immediately after replacement. | Persistent overcurrent, short circuit, or incorrect fuse rating. |
|
7. ข้อมูลจำเพาะ
| คุณลักษณะ | ค่า |
|---|---|
| หมายเลขรุ่น | JTD-15-ID |
| ยี่ห้อ | ลิตเทิลฟิวส์ |
| คะแนนปัจจุบัน | 15 Amps |
| เล่มที่tagระดับ e (AC) | 600 โวลต์ |
| เล่มที่tage Rating (DC) | 300 โวลต์ดีซี |
| ขัดจังหวะการให้คะแนน | การ จำกัด ปัจจุบัน |
| ประเภทการออกแบบ | Dual Element, Time Delay |
| ข้อบ่งชี้ | Trip Indication (Visual) |
| ขนาด (กว้าง x ยาว x สูง) | 2.28 x 0.84 x 2.28 นิ้ว |
| น้ำหนัก | 1.41 ออนซ์ |
8. ข้อมูลการรับประกัน
Specific warranty details for the Littelfuse JTD-15-ID fuse are typically provided by the point of purchase or directly by Littelfuse. As a consumable safety device, fuses generally do not carry a long-term warranty against normal operation (i.e., blowing when intended). Warranty typically covers manufacturing defects only.
For detailed warranty terms and conditions, please refer to the official Littelfuse webไซต์หรือติดต่อฝ่ายสนับสนุนลูกค้าของพวกเขา
9. การสนับสนุนลูกค้า
For technical assistance, product inquiries, or support regarding Littelfuse products, please visit the official Littelfuse webเว็บไซต์หรือติดต่อฝ่ายบริการลูกค้าของพวกเขา
Note: This manual provides general information. Always consult local electrical codes and regulations for specific installation requirements.
