| Customization: | Available |
|---|---|
| Transport Package: | Fumigation Wooden Box |
| Trademark: | YQALT |
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FN18 High Voltage Indoor Load Switch
Product Overview:
The FN18 is a versatile three-pole load break switch designed for switchgear owners and assemblers seeking a reliable and advanced interrupting solution in a compact design. With ratings from 12 kV up to 24 kV, this switch serves as a foundational component for metal-enclosed and pad-mounted switchgear applications. The FN18 switch includes a heavy-duty steel frame, stand-off insulators, and a unique puffer-type arc extinguishing system, ensuring dependable performance and longevity.
Application Environment:
The FN18 switch is ideal for medium-voltage power distribution systems, specifically in metal-enclosed and pad-mounted switchgear. It is widely used in utility substations, industrial facilities, and commercial power distribution networks where space constraints and reliable operation are critical.
Operating Conditions:
1. Voltage Range: Suitable for medium-voltage systems with operational voltage levels ranging from 12 kV to 24 kV.
2. Temperature Range: Designed to operate effectively in temperatures ranging from -10°C to +40°C.
3. Altitude: Applicable for installation at altitudes up to 1000 meters above sea level.
4. Humidity: Functions optimally in environments with relative humidity levels up to 90%.
5. Pollution Level: Appropriate for pollution level II environments, typically found in industrial and urban areas.
Usage Considerations:
1. Advanced Interrupting Technology: The FN18 switch features a puffer-type arc extinguishing system, which provides reliable arc interruption, minimizing wear and extending the life of the switch.
2. Heavy-Duty Construction: The switch is built with a durable steel frame and stand-off insulators, ensuring robust performance even in demanding environments.
3. Optional Accessories: The FN18 can be equipped with various accessories such as motor operators, auxiliary switches, shunt trip devices, and fuse bases, allowing for customization based on specific application requirements.
4. Safety Features: Includes mechanical fuse tripping, grounding switches, mechanical door interlocking, and key interlocking, enhancing operational safety and preventing unauthorized access or operation.
5. Compact Design: Despite its advanced features, the FN18 maintains a compact design, making it suitable for applications where space is limited.
Key Features:
• Dependable Performance: Proven track record of reliability in medium-voltage power distribution systems.
• Customizable Options: Wide range of optional accessories and features to meet diverse application needs.
• Safety-Oriented Design: Incorporates multiple safety mechanisms to protect operators and equipment.
• Space-Saving: Compact design ideal for installations with limited space availability.
| Technical Specification | |||
| Rated voltage | kV | 12 | 24 |
| Rated current | A | 630 | 630 |
| Rated power frequency | Hz | 50/60 | 50/60 |
| Short circuit making capacity | kA Peak. | 50 | 50 |
| Peak withstand current | kA Peak. | 50 | 50 |
| Short time current | kA eff. | ||
| 1Sec. | 31.5 | 25 | |
| 2Sec. | 25 | 25 | |
| 3Sec. | 20 | 16 | |
| Max. breaking capacity in co-operation with fuses IEC 62271-105 (IEC 420 1990-11) | A | 1600 | 900 |
| Max. fuse current(XRNT Fuse) | A | 200 | 200 |
| Power frequency withstand voltage 50Hz 1 min.: | |||
| To earth and between poles | kV | 42 | 65 |
| Across isolating distance | kV | 48 | 79 |
| lmpulse withstand voltage 1.2/50μs: | |||
| To earth and between poles | kV | 75 | 125 |
| Across isolating distance | kV | 85 | 145 |
| Mechanism Endurance | cycles | 2000 | 2000 |
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