Shenzhen LLH Electrical Co., Ltd.
| Delivery Time | 5-8 work days |
| Applications | Cold Workshops, High-Temp Equipment Rooms, Indoor Auxiliary Cabinets |
| Ambient Humidity | ≤95%RH at 40℃ |
| Housing Material | PA6 Mineral Nylon V0 Flame Retardant |
| Packaging Details | 1 piece/box |
| Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Low-Temp Mechanism | Built-in Ultra-Low Temperature Thermal Release |
| Discharge Current | In 20kA / Imax 40kA |
| Supply Ability | 6000 pieces/month |
| Operating Temp Range | -40℃ ~ +70℃ |
| Place of Origin | China |
| Certification | CE,TUV |
| Model Number | LPM 20-275/4 |
| Brand Name | LLH |
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Product Specification
| Delivery Time | 5-8 work days | Applications | Cold Workshops, High-Temp Equipment Rooms, Indoor Auxiliary Cabinets |
| Ambient Humidity | ≤95%RH at 40℃ | Housing Material | PA6 Mineral Nylon V0 Flame Retardant |
| Packaging Details | 1 piece/box | Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Low-Temp Mechanism | Built-in Ultra-Low Temperature Thermal Release | Discharge Current | In 20kA / Imax 40kA |
| Supply Ability | 6000 pieces/month | Operating Temp Range | -40℃ ~ +70℃ |
| Place of Origin | China | Certification | CE,TUV |
| Model Number | LPM 20-275/4 | Brand Name | LLH |
| High Light | three phase surge protection device ，indoor industrial cabinet SPD ，wide temperature range SPD | ||
Product Description
Conventional SPDs suffer false tripping and performance degradation in cold workshops or sealed high-temperature cabinets. This 4-pole Type 2 surge arrester maintains consistent performance from -40℃ to +70℃, equipped with dedicated low-temperature thermal release to avoid unnecessary disconnection under extreme cold. 40kA surge capacity and ≤25ns response time remain consistent regardless of ambient temperature shifts, with stable residual voltage clamping. PA6 V0 mineral nylon housing resists leakage and deformation under high humidity, anti-vibration pluggable modules fit industrial cabinets with frequent temperature swings, suitable for cold northern factories and sealed hot electrical rooms.
Key Features
Consistent surge protection performance across full -40℃ ~ +70℃ temperature spectrum
Specialized low-temperature release prevents false tripping in frigid environments
Minimal shift in response time and residual voltage under extreme hot/cold conditions
V0 flame retardant housing withstands long-term high heat inside sealed cabinets
Stable operation under 95% relative humidity for damp enclosed electrical rooms
FAQ:
Q1: Will long-term operation at -40℃ shorten service life?
A: All internal components and thermal release structures are engineered for wide temperature tolerance; continuous low-temperature operation does not accelerate aging.
Q2: Can it run continuously when sealed cabinet temperature hits 70℃ in summer?
A: Rated maximum operating temperature is 70℃; stable long-term performance is guaranteed with proper cabinet ventilation.
Q3: Is it suitable for indoor auxiliary cabinets with frequent temperature swings near outdoors?
A: IP20 rating limits installation to fully indoor enclosures (no open-air exposure); indoor auxiliary cabinets with fluctuating ambient temperatures are acceptable.
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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