Shenzhen LLH Electrical Co., Ltd.
| Delivery Time | 5-8 work days |
| Installation Zones | Indoor Distribution Cabinets LPZ0B ~ LPZ1 |
| Flame Retardant Grade | PA6 V0 |
| Signal Contacts | NC & NO Switching Contacts |
| Packaging Details | 1 piece/box |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Nominal Discharge Current In | 20kA |
| Protection Circuit | Full L1/L2/L3/N-E Modes |
| Supply Ability | 6000 pieces/month |
| Max Continuous Operating Voltage Uc | 440Vac |
| Model Number | LPM 20-275/4 |
| Brand Name | LLH |
| Place of Origin | China |
| Certification | CE,TUV |
View Detail Information
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Product Specification
| Delivery Time | 5-8 work days | Installation Zones | Indoor Distribution Cabinets LPZ0B ~ LPZ1 |
| Flame Retardant Grade | PA6 V0 | Signal Contacts | NC & NO Switching Contacts |
| Packaging Details | 1 piece/box | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Nominal Discharge Current In | 20kA | Protection Circuit | Full L1/L2/L3/N-E Modes |
| Supply Ability | 6000 pieces/month | Max Continuous Operating Voltage Uc | 440Vac |
| Model Number | LPM 20-275/4 | Brand Name | LLH |
| Place of Origin | China | Certification | CE,TUV |
| High Light | three phase surge protection device ，440Vac surge arrester ，high continuous voltage surge protector | ||
Product Description
Type 2 surge protective device exclusively designed for 440Vac high-voltage three-phase distribution systems, installed in heavy-duty industrial control cabinets and large commercial secondary panels within LPZ0B-LPZ1 zones. It diverts lightning and grid switching surges with voltage protection level ≤2.0kV to safeguard large inverters and power control cabinets. 4-pole full L1/L2/L3/N-E circuit protection with 40kA maximum discharge capacity handles heavy surge energy. Anti-vibration pluggable modules suit long-term vibration environments, while visual status window plus remote signalling simplify routine maintenance. IP20 indoor enclosure fits three-phase systems with wide mains voltage fluctuation.
Key Features
440Vac high continuous withstand voltage for unstable mains grids
40kA surge capacity absorbs high-energy transient currents
Synchronized full-mode protection for 3 phases + neutral line
Dual alarm system: local visual indicator + remote switch signal
Mineral nylon V0 housing suppresses flame spread during overload
FAQ:
Q1: Can this high voltage SPD be used on 220V single-phase circuits?
A: This unit is built exclusively for three-phase 4-wire systems; single-phase installation may cause mismatched protection performance.
Q2: Will the housing catch fire under overheating overload?
A: PA6 mineral nylon with V0 flame retardant rating prevents sustained flame propagation under high temperature overload.
Q3: Are individual modules detachable for replacement?
A: Single modules can be pulled out and replaced without removing the base unit or wiring terminals.
Company Details
Business Type:
Manufacturer
Year Established:
2018
Total Annual:
1000000-10000000
Employee Number:
20~100
Ecer Certification：
Verified Supplier
Shenzhen Leilihai Electric Co., Ltd We are a high-tech enterprise that integrates the research and development, manufacturing, sales, and installation services of lightning protection devices and lightning protection system supporting products. The company has successively passed the German TUV cer... Shenzhen Leilihai Electric Co., Ltd We are a high-tech enterprise that integrates the research and development, manufacturing, sales, and installation services of lightning protection devices and lightning protection system supporting products. The company has successively passed the German TUV cer...
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