English
Español
The working principle of the EL1-25 25KA/150KA 275V/385V Surge Protective Device is as follows: The surge protector is generally installed at both ends of the protected equipment and grounded. Under normal operating conditions, the surge protector presents high impedance to normal power frequency voltage, and almost no current passes through it, which is equivalent to an open circuit; when a transient overvoltage occurs in the system, the surge protector has high resistance to high-frequency transient overvoltage. The voltage presents low impedance, which is equivalent to short-circuiting the protected equipment.
By installing the EL1-25 25KA/150KA 275V/385V Surge Protective Device, it can quickly absorb and dissipate overvoltage, directing it to the ground, thus protecting the equipment from damage, extending its life, and improving the reliability of the equipment.
| Categories | SPD Surge Protective Device |
| Model | EL1-25 |
| Parameters | EL1-25 |
| Maximum continuous operating voltage Uc(V~) | 385V 275V |
| Voltage protection level UP(KA) | ≤2.0≤1.8 |
| Maximum dischargecurrent(8/20us)(KÄ) | 150 |
| Nominal dischargecurrent (8/20us) (KA) | 25 |
| Response time (ns) | <100 |
| IP Grade | IP20. |
| quipped with front fuse or circuit breaker | 125A |
| Cross-sectional area of connecting conductor | 25~50mm² |
| Application | Incoming line first level protection |
EL1-25 25KA/150KA 275V/385V Surge Protective Device MAIN TECHNICAL PARAMETERS
| Parameters | Model | ||||||
| EL1-15 | El1-25 | El1-50 | |||||
| Maximum continuous operating voltage Uc(V~) | 385V | 275V | 385V | 275V | 385V | 275V | |
| Voltage protection levelUP | ≤1.5 | ≤1.2 | ≤2.0 | ≤1.8 | ≤2.5 | ≤2.0 | |
| Surge current(10/350)Limp | Ipeak | 15KA | 25KA | 50KA | |||
| Etymology of electricity | 7.5AS | 12.5AS | 25AS | ||||
| Energy | 56.25KJIQ | 156.25KJIQ | 625KJIQ | ||||
| Maximum discharge current(8/20us)(KA) | 120KA | 150KA | 20KA | ||||
| Nominal discharge Nominal discharge | 15KA | 25KA | 50KA | ||||
| Response time (ns) | <100 | ||||||
| IP Grade | IP 20 | ||||||
| Work environment(℃) | -40℃~+85℃ | ||||||
| Equipped with front fuse or circuit breaker | 125A 125A | ||||||
| Cross-sectional area of connecting conductor | 25~50mm² | ||||||
| Application | Incoming line first level protection | ||||||
| Remote communication function | can reorder | ||||||
| Remark | Other maximum continuous working voltage Uc can be customized | ||||||
EL1-25 25KA/150KA 275V/385V Surge Protective Device SHAPE SIZE
EL1-25 25KA/150KA 275V/385V Surge Protective Device Video
DESCRIPTION OF PRODUCTS
cabinet (box), with high lightning discharge capacity, no continuous current,The maximum impulse current (10/350 ps) of a single module can reach limp=12.5KA, limp=15KA, limp=25KA, limp=35KA, limp=50KA, and the maximumdischarge current (8/20us) can reach Imax=100KA, Imax=120KA, Imax=150KA,Imax=160KA, Imax=200KA.
> What Should You Look for in a DC Isolator Switch for Solar PV?
A Isolator switch with 1200V DC rating, 32A capacity, and <8ms arc extinction provides safe disconnection for 1-20kW residential and commercial solar PV systems — ce...
> Why Does Your Electrical System Need a Residual Current Circuit Breaker?
A Residual Current Circuit Breaker RCCB is an electromagnetic device that protects people and equipment from electric shock and ground faults. It continuously monito...
> How Does a Liquid Level Relay Automate Your Water Pump?
A Liquid Level Relay automates pump control using conductive electrodes—no PLC required. This guide covers fill/drain modes, electrode selection, wiring, and trouble...
> What Makes a Charging Connector Reliable for Daily EV Charging?
A Charging Connector is more than a cable end—it’s the critical interface between the EV and the charger. With GB, EU, and US standard options, mechanical life of ≥1...