- UV Lamp[1]
- Chargers[1]
- Solar Cells[1]
- Circuit Breakers[30]
- Terminal Blocks[1]
- Terminals[4]
- Contactors[30]
- Electrical Plugs & Sockets[11]
- Electronic & Instrument Enclosures[1]
- Fuse Components[4]
- Fuses[7]
- Other Electrical Equipment[10]
- Power Accessories[2]
- Power Distribution Equipment[2]
- Inverters & Converters[3]
- Switching Power Supply[5]
- Uninterrupted Power Supply (UPS)[5]
- Voltage Regulators/Stabilizers[12]
- Relays[27]
- Micro Switches[2]
- Other Switches[15]
- Push Button Switches[1]
- Rotary Switches[4]
- Toggle Switches[1]
- Wall Switches[2]
- Other Wires[2]
- Cable Glands[5]
- Wiring Ducts[4]
- Diodes[1]
- Rectifiers[1]
- Thyristors[2]
- Insulation Materials & Elements[2]
- Other Electronic Accessories[2]
- Resistors[1]
- Solar Chargers[1]
- Food Waste Disposers[1]
- Starters[2]
- Energy Saving & Fluorescent[3]
- LED Bulbs & Tubes[1]
- Emergency Lights[8]
- LED Lamps[30]
- Other LED Lighting[1]
- Camping Lights[1]
- Street Lights[1]
- Floor Lamps[1]
- Other Lights & Lighting Products[1]
- Arc Welders[13]
- Other Welding Equipment[3]
- Counters[2]
- Clamp Meters[1]
- Current Meters[1]
- Energy Meters[10]
- Frequency Meters[1]
- Multimeters[1]
- Power Meters[1]
- Voltage Meters[2]
- Other Measuring & Analysing Instruments[1]
- Temperature Instruments[1]
- Testing Equipment[7]
- Timers[3]
- Alarm[7]
- Locks[1]
- Other Police & Military Supplies[1]
- Traffic Light[2]
Indoor Vacuum load switch - fuse
Isolate Switch
1.Type:FZN21
2.Standard|:IEC GB
3.Main Material:Procelain&Steel
Overview
FZN21-12D/T630-20, FZN21-12DR/T125-31.5 Model and composition of high-voltage vacuum load switch for three-phase AC electrical 12kV, 50Hz power distribution system, with a compact, small size, light weight, long life Closing breaking ability, safe and reliable, and fuse with the use of (the combination of electrical appliances), to replace fuses with higher cost, its operating and maintenance easy and convenient.
Use of environmental conditions
Altitude ≤1000m.
ambient temperature-25°C~+40°C.
Relative humidity: daily average is less than 95%, on average less than 90%.
No conductive dust, corrosive gases and water vapor in the workplace.
No fire and explosion hazard areas.
No severe vibration, tilt less than 3 ° place.
Main technical parameters
Serial number | Project | Unit | Parameter | |
FZN21 | FZRN21 | |||
1 | Rated voltage | KV | 12 | 12 |
2 | Rated Current | A | 630 | 125 |
3 | Rated short circuit making current | kA | 50 | 50 |
4 | Rated short-circuit breaking current (Switchgear) ) | kA | —— | 31.5 |
5 | Rated active load breaking current | A | 630 | 630 |
6 | 4Sthermal current | kA | 20 | —— |
7 | Dynamic current | kA | 50 | —— |
8 | 1min power frequency withstand voltage | kA | 42(Fracture48) | 42(Fracture48) |
9 | Lightning impulse withstand voltage | kA | 75(Fracture85) | 75(Fracture85) |
10 | Mechanical life | Times | 10000 | 10000 |
11 | Rated transfer current (Switchgear) | A | —— | 3150 |
12 | Motor operating voltage | V | AC-DC110,220 | AC-DC110,220 |
Structural features, performance (and installation dimensions, see Figure)
FZN21-12-Model load switch and the combination of electrical appliances mainly by frame, isolating switch (or fuse charging separate switch), vacuum interr../upter, grounding switch, operating mechanism and other components.
This product is compact, small size, long life, customs co-breaking ability, easy operation and maintenance. Vacuum switch operating mechanism and distribution and electricity storage spring, the CO can be fast operation. Isolation switch, vacuum switch, grounding switch interlock each other in order to prevent misuse.
1, frame 2, isolation knife 3, fuse 4, insulated rod 5, the bracket
6 interr upter 7, 8 Earth knife static contact, insulator 9, ground knife
10, ground spring 11, sub-gate spring 12, insulated rod 13, shaft
14, blurted institutions 15, payment of shaft 16, linkage rod 17, operating mechanism
No fuse load switch (item 3) and blurted institutions (item 14)
Order Information
Order stating the product Model, name, size, quantity, operating agencies voltage.