www.watchfuleyesolutions.com Smart Surge Protective Device

Smart surge protector WTH-CS/… AC380 series are perfect suit for your power supply system as well as Data and Control System. The smart monitoring system came with multiple connection choice: Wi-Fi, RS485 - Cloud, Modbus. Easily extend cloud service capability, allows real-time remote monitoring and managing your surge protection system through cloud service.
WTH-CS/… AC380 serie splits currents to protect surge protector against potential damage from overvoltage. Widely used in data center or front-end equipment to protect power supply and cable from surge.
In accordance with: IEC 61643-1 - Class I and UL1449 Type 4 Location

WTH-CS/… AC380 Series
Model Network Contact Signal Ordering code
WTH-CS/Wi-Fi/AC380 Wi-Fi - - USW127341
WTH-CS/Wi-Fi/AC380R Wi-Fi ✔︎ - USW127342
WTH-CS/Wi-Fi/AC380S Wi-Fi - ✔︎ USW127343
WTH-CS/485/AC380R RS485/Modbus ✔︎ - USR127345
※ Wi-Fi, RS485-Cloud: Cloud Service, remote monitoring, alerts sent by E-mail
※ Modbus: Convenient for the secondary development

Technical Data
Surge Protection Power Signal
Nominal operating voltage (Un) 380V (3P4W) 5-24VDC
Max. continuous operating voltage (Uc) 265VAC (L-N/PE) 33VDC
Nominal Discharge Current (In) 5kA 3kA
Max. Discharge Current (Imax) 10kA 20kA
Voltage protection level (Up @line-line) 1300V 60V
Voltage protection level (Up @line-PE) 1300V 65V
Insertion Loss - <0.5dB @10MHz
Protective Element MOV GDT, TVS
Response Time (tA) <25ns <1ns
Wiring Terminal L1, L2, L3, N, PE 1-2, 3-4
Leakage Current (at 75%U1mA) <20μA -
Thermal Protection YES -
Protection Rating (IP Code) IP 20
Surge Life at 3kA (8/20μs) >5000 events
Temperature Range - 40°F to 176°F (-40°C to 80°C)
Relative Humidity 0% to 95% noncondensing
Maximum Operating Altitude 10,000 feet (3000m)
Terminal Cross Section 35mm² (solid) 1.5mm²
Stripping Length Contacts 15mm 6-7mm
Max. Terminal Screw Torque 3.5Nm 0.25Nm
DIN Rail EN60715 35mm top-hat rail
Dimensions DIN 43880 72mm (4TE)
Housing Material Thermoplastic (UL94 V-0)
Housing Design Modular design
Net Weight Per Unit 250g
Package Dimension (W×H×D) 72mm×90mm×69mm
Smart Remote Monitoring YES
Surge Count 0-999
Network Connection Wi-Fi
SPD Module Monitoring Built-in Integration
GreenSPD Cloud http://www.greenspd.com
Technical Manual: http://datasheet.watchfuleyesolutions.com/USW000.html

Connection Diagram

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