English
| Quantity: | |
|---|---|
Features
1. Parametric control tripping mechanism, selective breaking through current;
2. The residual voltage of the impulse current is low, which is comparable to that of fuses;
3. High-energy contacts, long service life;
4. Micro-break shape and small size, which is convenient for power off to detect SPD;
5. The specifications are complete and meet the requirements of T1, T20 and T3 SPD;
6. 35mm clip rail installation, which meets the installation needs of all over the world;
Civil Commercial Industrial
SKD-SCB Type Surge Protection Device Description
SKD-SCB special backup protector (dedicated lightning protector backup protection device) solves fires caused by deterioration of lightning protectors and grid failures Hidden dangers, solve the problem of lightning arrester failure caused by the malfunction of the backup protection device caused by lightning, and ensure that the surge protector (SPD) does not catch fire.The lightning protection of the equipment is continuously effective; At the same time, it effectively overcomes the protection blind spot problem that exists in the current widespread use of fuses or circuit breakers as external breakers, which is low Voltage switching type SPD and voltage limiting type SPD are ideal supporting devices for voltage power supply systems.
1. Selective breaking of the passing power frequency current and lightning current can effectively protect the SPD from penetrating short circuit when the SPD is overvolted due to abnormal transient overvoltage.
caused serious fire accidents.
2. Selective disconnection of the passing power frequency current and lightning current can effectively protect the SPD from dropping to below electricity due to deterioration
The source voltage and power frequency leakage current increase, causing serious fire accidents.
3. When the SPD has lightning current, this external detachment will not trip by mistake, so that the lightning protection of electrical equipment is always in an effective state.
4. Aisikai SKD-SCB dedicated backup protector, providing SPD (lightning protection device) for power supply with first-level, second-level, and third-level equipment protectionProvides professional backup protection. Suitable for locations where SPD lightning protection devices are installed, such as: industrial and civil buildings, electrical, communication, road traffic, petrochemical.Power supply equipment for various industries such as industry, commerce, agriculture, and public institutions.
Technical Parameters
SKD-SCB | T1level | T2level | T2level | T2level | T3level |
Model | SKD-SCB-100 | SKD-SCB-80 | SKD-SCB-60 | SKD-SCB-40 | SKD-SCB-20 |
Rated operating voltage Ue | 230V/400VAC | 230V/400VAC | 230V/400VAC | 230V/400VAC | 230V/400VAC |
Rated insulation voltage Ui | 400VAC | 400VAC | 400VAC | 400VAC | 400VAC |
Maximum withstand impulse current Iemax | 15kA(10/350μs) | 100kA(8/20μs) | 60kA(8/20μs) | 40kA(8/20μs) | 20kA(8/20μs) |
Nominal impulse current resistance In | 15kA(10/350μs) | ≤60kA(8/20μs) | ≤30kA(8/20μs) | ≤20kA(8/20μs) | ≤10kA(8/20μs) |
Power frequency trip current II | 3±1A | 3±1A | 3±1A | 3±1A | 3±1A |
Mechanical life | 1000times | 1000times | 1000times | 1000times | 1000times |
Terminal maximum wiring | 25mm² | 25mm² | 25mm² | 25mm² | 25mm² |
Enclosure protection level | IP20 | IP20 | IP20 | IP20 | IP20 |
Working environment temperature | -25℃～60℃ | -25℃～60℃ | -25℃～60℃ | -25℃～60℃ | -25℃～60℃ |
Working environment humidity (room temperature) | 20%～90%RH | 20%～90%RH | 20%～90%RH | 20%～90%RH | 20%～90%RH |
Install the track | EN60715(35mm) | EN60715(35mm) | EN60715(35mm) | EN60715(35mm) | EN60715(35mm) |
Product selection and ordering
Product model | Protection level | limp In | Imax | Width size W |
SKD-SCB-100 | T1 | ≤15KA（10/350μs） | ≤120KA（8/20μs） | 18mm |
SKD-SCB-80 | T2 | ≤60KA（8/20μs） | ≤100KA（8/20μs） | 18mm |
SKD-SCB-60 | T2 | ≤30KA（8/20μs） | ≤60KA（8/20μs） | 18mm |
SKD-SCB-40 | T2 | ≤20KA（8/20μs） | ≤40KA（8/20μs） | 18mm |
SKD-SCB-20 | T3 | ≤10KA（8/20μs） | ≤20KA（8/20μs） | 18mm |
Q 1: Surge Protector Selection
Q: How can I select an appropriate SKD1 surge protector?
A: Select it according to the required lightning protection level and the environment. For example, choose SKD1 - B for Class B lightning protection, which is used at the junction of LPZOB and LPZ1, etc.; choose SKD1 - C for Class C lightning protection, which is suitable for places like computer centers; choose SKD1 - D for Class D lightning protection, which is used to protect terminal loads. Also, refer to parameters such as the maximum continuous operating voltage.
Q 2: Installation Conditions
Q: What are the key installation conditions for SKD series surge protectors?
A: The operating temperature should be between -20℃ and +45℃, and the 24-hour average should not exceed +35℃. The humidity at +40℃ should not exceed 50% and there should be no condensation. The altitude should be lower than 2000 meters. The environment should be free from strong vibrations, impacts, corrosive gases, and hazardous substances, and the pollution degree should be at Level Ⅲ.
Q 3: Importance of Technical Parameters
Q: Why are technical parameters such as the voltage protection level and discharge current of SKD1 surge protectors important?
A: The voltage protection level limits the over voltage. A lower value indicates better protection. The discharge current (nominal and maximum) reflects the ability to deal with surge currents. A higher value means it can handle strong lightning-induced surges and effectively protect the electrical system.
