Techwin Lightning Technology Co., Ltd.

China Manufacturer with main products: Surge Protective Device, Surge Protection, TVSS

Home  >Products Catalog > Techwin TVSS 120kA Class B Surge Protection Device(SPD)for Three-Phase 380V AC System

Techwin TVSS 120kA Class B Surge Protection Device(SPD)for Three-Phase 380V AC System

FOB Price: 600.00 - 650.00 USD/Piece
Payment Terms: T/T
In Stock
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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Guangdong in China

Quick Details

  • Brand Name: Techwin
  • Rated Voltage: 380VAC
  • application: Intelligent buildings
  • Material: Metal
  • name: Techwin TVSS 120kA Class B surge protection device for Three-phase
  • Model Number: B120B3+N


Techwin TVSS 120kA Class B surge protection deviceSPDfor Threephase 380V AC systemTechwin TVSS 120kA Class B surge protection deviceSPDfor Threephase 380V AC system
Techwin TVSS 120kA Class B Surge protection device(SPD)for Three-phase 380V AC system

Model: B120B3+N


B class surge protective device for 3-phase AC power System.

Power distribution box(cabinet);AC cabinet;Column head cabinet;Charging station/charging point

CommunicationBase Station

Telecom centers

Automatic control centers

Intelligent buildings

Industrial enterprises

Medical Institutes

IT,TT,TN-C,TN-S,TN-C-S and other power supply system.


Thermal Disconnection technology with over-current protection circuit

Working & malfunctioning status indications

120kA Maximum surge current

Lightning counter is provided

Y Connection method applicable

Simple Installation and maintenance

ISO 9001:2008 certificated,ISO14000:2004 Certificated and OHSAS18000:2007 certificated

High quality products with TV, CE, UL certificate




Electrical Parameter

Nominal working voltage Un

50/60Hz 220/380VAC

Max. Continuous operating voltage Uc


Nominal discharge current(8/20s)in


Max. Discharge current (8/20s)Imax


Protection level @20kA, 8/20s up


Response time tA


Protection mode


Mechanical Characteristics


400 (H)300 (W)120(L)mm

Weight per unit


Connecting wire diameter



Steel with dichromate plated

IP code


Working conditions

Temperature: -40 to 85,

Relative humidity: ≤95(25)

Standards compliance

IEC61643-1, UL94-V0, RoHS

Service Process

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