| Place of Origin: | china |
|---|---|
| Brand Name: | XK |
| Certification: | ISO9001 / GB / IEC |
| Model Number: | FN12 |
| Minimum Order Quantity: | 1 Piece/Pieces |
| Price: | Negotiation |
| Packaging Details: | EXPORTING PACKING |
| Supply Ability: | 100 Piece/Pieces per Month |
| Max. Current: | 1250A | Max. Voltage: | 36kv |
|---|---|---|---|
| Standard: | IEC | Rated Current: | 630A,1250A |
| Rated Voltage: | 36kv | Mechanical Life: | 10000 |
| Keywords: | Load Break Switch With Fuse | Port: | NINGBO |
| High Light: | load disconnect switch,high voltage isolator switch |
||
What is a load break switch
Load break switch
A load break switch is a disconnect switch that has been designed to provide making or breaking of specified currents.
This is accomplished by addition of equipment that increases the operating speed of the disconnect switch blade and the addition of some type of equipment to alter the arcing phenomena and allow the safe interruption of the arc resulting when switching load currents.
SF6 Insulated Load Break Switch for the use in medium voltage switchboards for secondary distribution networks.
SF6 Insulated Load Break Switch for the use in medium voltage switchboards for secondary distribution networks.
Disconnect switches can be supplied with equipment to provide a limited load switching capability. Arcing horns, whips, and spring actuators are typical at lower voltages.
These switches are used to de-energize or energize a circuit that possesses some limited amount of magnetic or capacitive current, such as transformer exciting current or line charging currents.
An air switch can be modified to include a series interrupter (typically vacuum or SF6) for higher voltage and current interrupting levels.
These interrupters increase the load break capability of the disconnect switch and can be applied for switching load or fault currents of the associated equipment.
| ltem | Unit | Data | |
| Rated voltage | KV | FN12-12D/630 | FN12-12(R)D/125 |
| Rated frequency | HZ | 12 | |
| Rated current | A | 50 | |
| 1min power frequency withstand voltage | KV | 42 to ground and phases fracture 48 | |
| Lightning impulse withstand voltage | KV | 75 to ground and phases fracture 85 | |
| Rated thermal stable current | KA |
630
|
100
|
| Rated dynamic stable current | KA |
50
|
|
| Rated switching current(peak) | KA |
50
|
50
|
| Rated short-circuit current(expected) | KV |
31.5
|
|
| Maximum breaking current threshold | HZ | Fuse characteratic curve accorting | |
| Minimum breaking current | A | Fuse characteratic curve accorting | |
| Rated transfer current | KV |
50
|
1.5
|
| Maximum breaking current | KV | 1.8 | |
| Breaking OFF-load transformer capacity | KV/A | 1250 | |
| Rated cable charging current | A | 10 | |
| Rated active load current breaking times | Times | 10000 | |
| Opening time when striker strikes | S | <0.06 | |
| Earth switch thermal current switch | KA | 20(2S) | |
| Thermal stable current of earth switch | KA | 50 | 50 |
| Motor operating power supply voltage | V | AC/DC 110/220 | |
| ltem | Unit | Data | |
| FN12-10D/630 | FN12-10(R)D/125 | ||
| The total traveling distance of moving contact | mm | 200+8-2 | |
| Phase center distance (Before energy storage) | mm | 210±15 | |
| Moving contact overtravel distance | mm | 40±2 | |
| Auxiliary contact opening distance | mm | >150 | |
| Opening/Closing time difference among three phase | ms | <3 | |
| Opening speed | m/s | >2.8 | >2.8 |
| Closing speed | m/s | >3.8 | |
| Distance between metal flexible door and torch | mm | >125 | |
| Fracture distance of earth switch | mm | >150 | |
| Main circuit resistance | Ω | <120 | <300 |
| Maximum operating torque | NM | >160 | |
Q1. Can we have our logo or company name to be printed on your products or the package?
Yes,you can.Logo and company name can be printed on our products by silk screen printing.You can send us the artwork by email in JPEG or TIFF format.
Q2. What is lead time?
Usually 3-15 working days, On-Time delivery
Q3. Why us?
All products comply with the requirements of GB national standards, IC, ANSI and other international standards, and the requirements of company's technology standards.
Q4. How do you make our business long-term and good relationship?
1. Our high quality and competitive price are the most important factors to maintain long-term and good relation -ship with our customers.
2. Good service is our basic principle for every customers.
Q5. Can I have a visit to your factory before the order?
Sure,welcome to visit our factory.
