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China RW12 Series Drop Out Fuse - High Voltage Protection Device from Reliable Suppliers and Factory
Type and its meaning
Service conditions
a. Altitude: Not more than 2000m.
b. Ambient temperature: Max: +40°C, Min: -30°C.
c. Environment: The location should be free from explosion hazards, severe vibrations, and conditions that cause significant corrosion to metals or insulating materials.
Technical parameter
| Type | Rated voltage kV |
Rated current A |
Breaking current A |
Impulse voltage BIL |
Power frequency withstand voltage kV |
Creepage distance Um |
Weight KG |
Dimension cm |
| (H)RW12-12 | 12 | 100 | 1000 | 110 | 42 | 31.5 | 7.3 | 38.5 x 34.5 x 11 |
| (H)RW12-12 | 12 | 200 | 1200 | 110 | 42 | 31.5 | 7.3 | |
| (H)RW12-15 | 15 | 100 | 1000 | 110 | 42 | 31.5 | 7.3 | 38.5 x 34.5 x 11 |
| (H)RW12-15 | 15 | 200 | 1200 | 110 | 42 | 31.5 | 7.3 |
| Rated voltage (kV) |
BIL (kV) |
A (mm) |
B (mm) |
C (mm) |
D (mm) |
E (mm) |
FR (mm) |
Creepage distance (mm) |
Weight KG |
| 12(15) | 125 | 331.4 | 169.3 | 202.4 | 462.8 | 129.4 | 412.8 | 325.1 | 6.58 |
| 24(27) | 125 | 341.4 | 179.3 | 202.4 | 462.8 | 134.9 | 412.8 | 325.1 | 6.58 |
| 24(27) | 150 | 341.4 | 179.3 | 202.4 | 462.8 | 134.9 | 412.8 | 457.2 | 9.08 |
| 27(33) | 200 | 435.1 | 187.5 | 261.1 | 548.4 | 165.1 | 522.2 | 665.5 | 10.1 |
| 27(36) | 200 | 435.1 | 187.5 | 261.1 | 548.4 | 165.4 | 522.2 | 769.6 | 10.1 |
Outline structure and installation dimensions
1. Upper Terminal Block: Available in two types: tin-plated copper castings and silver-plated stamped parts.
2. Upper Cover: Made of high-quality 304 stainless steel with integrated terminal blocks.
3. Upper Contact Plate: Zinc-plated integrated terminal block to enhance conductivity.
4. Upper Moving Contact: Surface plated with 3um silver, equipped with a 304 stainless steel spring capable of withstanding high pressure.
5. Tripping Hook: Specially designed hook to effectively guide the fuse tube into the closed position.
6. Fuse Tube: UV-resistant, moisture-proof, and long-lasting.
7. Trunnion: Surface plated with 3um silver, ensuring high precision and preventing lateral movement during closing.
8. Lower Moving Contact (Invisible): Equipped with a 3um silver-plated shunt plate, providing a current path independent of the hinge pin.
9. Rapid Separation: res rapid separation at the ends and quick ejection of the cable strand.
10. High-Strength Insulator: Features self-cleaning properties, high strength, and excellent craftsmanship.
11. Base Terminal: Zinc-plated integrated lower terminal block.
Note: All iron accessories are hot-dip galvanized with a thickness of over 80um. Stainless steel components are made of high-quality 304 stainless steel. Precision-cast brass or aluminum bronze (two material options).
Frequently Asked Questions (FAQ)
What are the standard service conditions for this equipment?
The equipment is designed to operate at altitudes not exceeding 2000m, with ambient temperatures ranging from a maximum of +40°C to a minimum of -30°C. The installation location must be free from explosion hazards, severe vibrations, and conditions causing significant corrosion to metals or insulating materials.
What materials are used for the upper cover and terminal blocks?
The upper cover is made of high-quality 304 stainless steel with integrated terminal blocks. The upper terminal block is available in two types: tin-plated copper castings and silver-plated stamped parts.
How is the corrosion resistance of the iron and stainless steel accessories ensured?
All iron accessories are hot-dip galvanized with a thickness of over 80um to ensure long-term durability. Stainless steel components are manufactured using high-quality 304 stainless steel.
What are the rated voltage and current specifications for the (H)RW12 series?
The (H)RW12 series features rated voltages of 12kV and 15kV, with rated current options of either 100A or 200A, and breaking currents ranging from 1000A to 1200A.
How does the contact system enhance electrical conductivity?
The upper contact plate uses a zinc-plated integrated terminal block, and the upper moving contact is surface-plated with 3um silver. Additionally, the lower moving contact is equipped with a 3um silver-plated shunt plate to provide an independent current path.
What features prevent lateral movement of the fuse tube during closing?
The trunnion features a surface plated with 3um silver, which ensures high precision alignment and effectively prevents lateral movement when closing the unit.