Shenzhen LLH Electrical Co., Ltd.
| Delivery Time | 5-8 work days |
| Remote Compatibility | PLC, Building BA, SCADA Systems |
| Max Signal Cable Cross-section | 2.5mm² Copper |
| Local Indication | Green/Red Visual Deterioration Window |
| Packaging Details | 1 piece/box |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Contact Load Rating | 125Vac/1A, 125Vdc/0.2A |
| Standard Compliance | IEC 61643-11 Type 2 |
| Supply Ability | 6000 pieces/month |
| Contact Type | Normally Open NO + Normally Closed NC Switching Contacts |
| Certification | CE,TUV |
| Place of Origin | China |
| Model Number | LPM 20-275/4 |
| Brand Name | LLH |
View Detail Information
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Product Specification
| Delivery Time | 5-8 work days | Remote Compatibility | PLC, Building BA, SCADA Systems |
| Max Signal Cable Cross-section | 2.5mm² Copper | Local Indication | Green/Red Visual Deterioration Window |
| Packaging Details | 1 piece/box | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Contact Load Rating | 125Vac/1A, 125Vdc/0.2A | Standard Compliance | IEC 61643-11 Type 2 |
| Supply Ability | 6000 pieces/month | Contact Type | Normally Open NO + Normally Closed NC Switching Contacts |
| Certification | CE,TUV | Place of Origin | China |
| Model Number | LPM 20-275/4 | Brand Name | LLH |
| High Light | three phase surge protection device ，surge arrester with remote signalling ，surge protection device monitoring contacts | ||
Product Description
Conventional SPDs without remote contacts rely entirely on manual inspection; degraded failed modules operate undetected and leave downstream equipment unprotected. This 4-pole surge protection device integrates NC/NO switching remote contacts to send automatic switch alarm signals to automation monitoring platforms upon SPD failure, paired with front visual status window for on-site check, delivering dual local & remote monitoring. With 40kA surge capacity and ≤25ns response time complying with secondary lightning protection standards, pluggable modules enable fast replacement, ideal for unattended power rooms in factories and commercial buildings.
Key Features
Built-in NO/NC dual remote contacts for automatic remote fault alert
Contact load rating matches industrial low-voltage signal circuits
Front visual window supports on-site routine inspection
Max 2.5mm² signal cable fits standard control wiring
Module failure triggers both local visual alert and remote signal output
FAQ:
Q1: Do remote signalling contacts require external power supply?
A: Passive dry contact output with no extra power needed; connect directly to monitoring signal loops.
Q2: Is there transmission distance limitation for remote signals?
A: Standard copper control cables perform stable short-distance transmission inside electrical rooms without signal attenuation.
Q3: Can multiple SPD units share one monitoring circuit?
A: Multiple remote contacts can be paralleled via relays to feed unified alarm signals into central monitoring systems.
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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