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1. Characteristic
-Class I / Type 1 surge arrester 25kA (10/350us).
-Consisting of a base part and 4 MOV plug-in protection modules.
-For using in the lightning protection zones concept at boundary 0-1.
-The core parts are metal oxide vristor components with high discharge capacity.
-Low residual voltage and quick response
-Reliable control thanks to Thermo Dynamic Control disconnector.
-With remote signaling contact for control device.
-Fault indication via red mark in the inspection window.
-Protection mode: L1, L2, L3-PE, N-PE.
2. Dimension and Circuit of surge arrester FV25B/4 S

Electrical parameters of surge arrester FV25B/4 S
| Type | FV25B/4-150 S FV25B/4-275S FV25B/4-320S FV25B/4-440 S | |||||
| Rated Voltage | Un | V AC | 120 | 230 | 230 | 400 |
| Max. continuous operating voltage | Uc | V AC | 150 | 275 | 320 | 440 |
| Nominal discharge current (8/20μs) | In | kA | 50 | 50 | 50 | 50 |
| Max. discharge current (8/20μs) | Imax | kA | 100 | 100 | 100 | 100 |
| Impulse discharge current (8/20μs) | Iimp | kA | 25 | 25 | 25 | 35 |
| Voltage protection level (at 25kA) | Up | kV | ≤0.9 | ≤1.5 | ≤1.8 | ≤2.2 |
| Response time | tA | ns | <25 | <25 | <25 | <25 |
| Recommended back-up fuse | A | 500 | 500 | 500 | 500 | |
| I/O Connections | By screw terminal:10-35mm2; By connection bus | |||||
| Mounting | Symmetrical rail (EN50022/DIN46277-3) | |||||
| Operation temperature range | -40°C~+85°C | |||||
| Degree of protection | IP20 | |||||
| Housing material | UL94V0 | |||||
| Disconnection indicator | Mechanical indicator | |||||
| Remote control contact | Optional | |||||
| Poles Number | 4 poles | |||||
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protection photovoltaic system | protection power supply system | Lightning Rods & Surge Counters |


Workshop

→
→ 
Module assembling Base part producing Finished products tests
↓
←
← 
Go to warehouse Packing Impulse current test

Certifications
FATECH Electronic (FOSHAN) CO., LTD. supplies five-years warranty on surge protective devices, and supply maintenance services in lifetime.Products are certified with TUV, CE; UL pending, 90% material are UL approved.

FAQ:
1. Q: Could l know which advantages do you have please?
A: Independent test center, TUV, Patent certifications; 15 years export experience in the overseas market; good technical service and support.
2. Q: Are you a lightning surge protectors factory or trading company?
A: We area manufacturer which is ISO 9001-2008 quality system on R&D, production and sales of surge arrester.
3. Q: Warranty and return?
A: We supply five-years warranty on surge protective devices and own the best after-sale service team, if any
problem happens, our team will do our best to solve it for you.
4. Q: What's the delievery time?
A: It is usually about 15 days after receiving the payment and confirmed the order, but specific time should
be based on the order quantity.
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