WTH-40/C/R/3P Wi-Fi Series
www.watchfuleyesolutions.com Smart Surge Protective Device

In accordance with: IEC 61643-1 - Class II and UL1449 Type 4 Location
Location of use: branch sub-distribution boards
Plug-in module and separate base design enables convenient maintenance.
Network with Wi-Fi, smart remote monitoring

WTH-40/C/R/3P Wi-FiSeries
Model Uc(AC/DC) Up Ures Ordering code
WTH-40/C/R/3P-75 Wi-Fi 75/100V 1.0kV 0.6kV USW120351
WTH-40/C/R/3P-115 Wi-Fi 115/150V 1.2kV 0.7kV USW120352
WTH-40/C/R/3P-150 Wi-Fi 150/200V 1.3kV 0.8kV USW120353
WTH-40/C/R/3P-275 Wi-Fi 275/350V 1.5kV 1.0kV USW120354
WTH-40/C/R/3P-320 Wi-Fi 320/400V 1.7kV 1.1kV USW120355
WTH-40/C/R/3P-385 Wi-Fi 385/500V 1.8kV 1.2kV USW120356
WTH-40/C/R/3P-420 Wi-Fi 420/600V 1.9kV 1.4kV USW120357
WTH-40/C/R/3P-550 Wi-Fi 550/700V 2.4kV 1.8kV USW120358
WTH-40/C/R/3P-690 Wi-Fi 690/800V 2.7kV 2.1kV USW120359
WTH-40/C/R/3P-880 Wi-Fi 880/1000V 3.2kV 2.5kV USW129055
※ Uc: Max. continuous operating voltage ※ Frequency: 50/60Hz (AC Power)
※ Up: Voltage protection level ※ Ures @6kV/3kA: Residual voltage

Technical Data
Requirement Class to IEC61643-1 Class II
IEEE Category Rating B & A
Nominal Discharge Current (In) 20kA
Max. Discharge Current (Imax) 40kA
Pulsed Current (Iimp) N/A
Protection Modes L-PE, N-PE
Protective Element MOV
Follow Current (If) NO
Response Time (tA) <25ns
Leakage Current (at 75%U1mA) <20μA
Thermal Protection YES
Protection Rating (IP Code) IP 20
Short Circuit Current Ratings (SCCR) 20kA rms
Max. Back-up Fuse (if mains >80A) 80A gL (circuit-breaker: <40A)
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) / 25mm² (stranded)
Stripping Length Contacts 0.6inches (15mm)
Terminal Screw Torque Max. 3.5Nm
DIN Rail EN60715 35mm top-hat rail
Dimensions DIN 43880 62mm (3.5TE)
Housing Material Thermoplastic (UL94 V-0)
Housing Design Modular design
Net Weight Per Unit 0.98Lb (445g)
Package Dimension (W×H×D) 2.9"×3.9"×2.7" (62mm×98mm×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

Fault Indication
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