Products Description
Indoor Load Break Switch, also known as indoor load switch in Chinese, is a switchgear installed indoors for load-breaking circuits in medium-voltage power systems. It is mainly used to safely disconnect and connect power lines when there is current, and is commonly used for voltage levels such as 12kV, 24kV, and 35kV.
Minimum order quantity: 1 piece
Sample: This product is relatively large, customers need to bear the sample fee and shipping fee
Payment: T/T, L/C
Price: EXW
Indoor Load Break Switch Main functions:
1. Open or close the circuit under normal load current (generally rated below 630A)
2. Provide electrical isolation function
3. Can be equipped with grounding switch for safe grounding during maintenance operations
4. Often used with fuses to form a protection unit
Product parameters
|
Technical Specification |
|
|
|
|
|
|
Rated voltage |
kV |
|
12 |
24 |
|
|
Rated current |
A |
400 |
|
630 |
630 |
|
Rated power frequency |
Hz |
50/60 |
|
50/60 |
50/60 |
|
Short circuit making capacity |
kA Peak. |
31.5 |
|
50 |
50 |
|
Peak withstand current |
kA Peak. |
31.5 |
|
50 |
50 |
|
Short time current |
kA eff. |
|
|
|
|
|
1Sec. |
|
25 |
|
25 |
25 |
|
3Sec. |
|
12.5 |
|
20 |
20 |
|
Max. breaking capacity in co-operation with fuses IEC 62271-105 (IEC 420 1990-11) |
A |
1600 |
|
1600 |
900 |
|
Max. fuse current(XRNT Fuse) |
A |
200 |
|
200 |
200 |
|
Power frequency withstand voltage 50Hz 1 min,: |
|
|
|
|
|
|
- To earth and between poles |
kV |
42 |
|
42 |
55 |
|
- Across isolating distance |
kV |
48 |
|
48 |
70 |
|
Impulse withstand voltage 1.2/50μ s: |
|
|
|
|
|
|
- To earth and between poles |
kV |
75 |
|
75 |
125 |
|
- Across isolating distance |
kV |
85 |
|
85 |
145 |
|
Mechanism Endurance |
cycles |
2000 |
|
2000 |
2000 |
detail display
certificate
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