NYKG Series
Isolation Switch
（16-1600A）
Concise
Efficient
Safe
Comprehensive
PRODUCT OVERVIEW
NYKG series isolation switches are a kind of switching devices mainly used for isolating the power supply, facilitating the switching operation, connecting and disconnecting small current circuits. They features high stability and easy operation, which are widely used in the fields of industry, commerce, residence and infrastructure to provide the necessary safety isolation when maintaining and repairing the fault in any forms. They play a vital part in the safety management of power systems.
PRODUCT CHARACTERITICS
Compliance with safety standards
Isolation switches meet safety standards and regulatory requirements, safeguarding the personnel and equipment safety.
Diverse and flexible options
Diverse current specifications, optional body operation and cabinet door external handle operation, with optional auxiliary contacts and cabinet door interlocking to meet the various needs of users.
Enhanced system maintenance
It is easy to disconnect the partial connection of the electrical system by using the isolation switches without affecting the power supply and operation of other parts, which is especially significant for large-scale and complex systems.
Reliable electrical performance
Excellent electrical isolation performance can safely disconnect the direct electrical connection between the electrical equipment and the power supply.It enhances the maintenance efficiency of electrical equipment and protects the safety of maintenance personnel.
- Ambient temperature:-40°C~+70℃
- Altitude: ≤2000m(above 2000m, please contact Tysen-kld)
- Relative humidity: Not more than 50%RH at 40℃, 90%RH at 20℃
- Applicable category: Class Ⅲ
- Pollution grade: Grade 3
- Protection grade: IP20
- Use category: AC-23B
- Installation method: Fixed wiring before board assembly
- Compliance standard: GB/T14048.3 Low-voltage switchgear and controlgear—Part3: Switches，disconnectors，switch-disconnectors and fuse-combination units
Technical Parameters
NYKG1 Series Isolation Switch
| >Model | Rated operating voltage Ue(V) | Number of poles | Rated currentIn(A) | Applicable altitude （m） | Rated short-time withstand current Icw (kA) （kA/s） |
| NYKG1 | AC400 | 1P | 32、63、80、100 | ≤2000 | 20/1 |
| 2P | |||||
| 3P | |||||
| 4P |
NYKG3 Series Isolation Switch
| >Model | Rated operating voltage Ue(V) | Casing current Inm(A) | Rated currentIn(A) | Rated insulation voltage Ui(V) | Rated impulse withstand voltage Uimp(kV) | Number of poles | Rated short-circuit making and Breaking capacity Icm（kA） | Rated short-time withstand current(kA/s) （kA/s） |
| NYKG3-100 | AC400V | 100 | 16、20、25、32、40、 50、63、80、100 | 690 | 8 | 3P、 4P | 8 | 5/0.3 |
| NYKG3-160 | 160 | 63、80、100、125、160 | 17 | 10/1 | ||||
| NYKG3-250 | 250 | 180、200、225、250 | 800 | 17 | 10/1 | |||
| NYKG3-630 | 630 | 315、400、500、630 | 40 | 20/1 | ||||
| NYKG3-1600 | 1600 | 800、1000、1250、1600 | 1000 | 10 | 105 | 35/1 |
Selection table
NYKG1 Series Isolation Switch
| NYKG1 | 3P | 16A |
| Product code | Pole No. | Rated current |
| NYKG1: Small type Isolation Switch |
3P:3 pole 4P:4 pole |
16A、20A 25A、32A 40A、50A 63A、80A 100A |
NYKG3 Series Isolation Switch
| NYKG3 | 100 | 3P | 16A | Additional functions |
| Product code | Casing current | Pole No. | Rated current | Additional functions |
| NYKG3： Isolation Switch |
100A 160A 250A 630A 1600A |
3P:3 pole 4P:4 pole |
16A、20A 25A、32A 40A、50A 63A、80A 100A、125A 160A、180A 200A、225A 250A、315A 350A、400A 500A、630A 800A 1000A 1250A 1600A |
J:Outside cabinet operation F11:1 opened and 1 closed F22: 2 opened and 2 closed |
Technical Parameters
NYKG1 Series Isolation Switch
-
Rated operating voltage Ue（V）：AC230/400
Number of poles：1P、2P、3P、4P
Current shell frame Inm (A) ：32、63、 80、100
Applicable altitude （m）：≤2000
Rated short-time withstand current Icw (kA) （kA/s）：20/1
NYKG3 Series Isolation Switch
-
Rated operating voltage Ue（V）：AC400
Current shell frame Inm(A) ：100
Current shell frame Inm (A) ：16、20、25、32、40、 50、63、80、100
Rated insulation voltage Ui(V)：690
Rated impulse withstand voltage Uimp(kV) ：8
Number of poles：3P、 4P
Rated short-circuit making capacity Icm（kA）（kA）：8
Rated short-time withstand current(kA/s) （kA/s）：5/0.3
-
Model：NYKG3-160
Rated operating voltage (V)：AC400
Current shell frame Inm(A)：160
Current shell frame Inm (A) ：63、80、100、125、160
Rated insulation voltage Ui(V)：AC690
Rated impulse withstand voltage Uimp(kV)：AC8
Number of poles：3P、4P
Rated short-circuit making capacity Icm（kA）(kA)：17
Rated short-time withstand current Icw (kA) (kA/s)：10/1
-
Model：NYKG3-250
Rated operating voltage (V)：AC400
Current shell frame Inm(A)：250
Current shell frame Inm (A) ：180、200、225、250
Rated insulation voltage Ui(V)：AC800
Rated impulse withstand voltage Uimp(kV)：AC8
Number of poles：3P、4P
Rated short-circuit making capacity Icm（kA）(kA)：17
Rated short-time withstand current Icw (kA) (kA/s)：10/1
-
Model：NYKG3-630
Rated operating voltage (V)：AC400
Current shell frame Inm(A)：630
Current shell frame Inm (A) ：315、400、500、630
Rated insulation voltage Ui(V)：AC800
Rated impulse withstand voltage Uimp(kV)：AC8
Number of poles：3P、4P
Rated short-circuit making capacity Icm（kA）(kA)：40
Rated short-time withstand current Icw (kA) (kA/s)：20/1
-
Model：NYKG3-1600
Rated operating voltage (V)：AC400
Current shell frame Inm(A)：1600
Current shell frame Inm (A) ：800、1000、1250、1600
Rated insulation voltage Ui(V)：AC1000
Rated impulse withstand voltage Uimp(kV)：AC10
Number of poles：3P、4P
Rated short-circuit making capacity Icm（kA）(kA)：105
Rated short-time withstand current Icw (kA) (kA/s)：35/1
Selection table
-
Product code ：NYKG1:Small isolation switch
Pole code：3P: 3 pole 、4P: 4 pole
Rated current：16A、20A、25A、32A、40A、50A、63A、80A、100A
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Product code ：NYKG3: Isolation Switch
Current shell frame ：100A、160A、250A、630A、1600A
Pole code：3P:3P: 3 pole、 4P: 4 pole
Rated current：16A、20A、25A、32A、40A、50A、63A、80A、100A、125A、160A、180A、200A、225A、250A、315A、350A、400A、500A、630A、800A、1000A、1250A、1600A
Additional features：J:Outside cabinet operation、F11:1 opened and 1 closed、F22: 2 opened and 2 closed
TYSEN-SAE Electrical Co., Ltd. Jiangsu ICP File No.16025679