WTH-40/C/3P-DC Series
www.watchfuleyesolutions.com Surge Protective Device for DC System
Paperless Datasheet
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Description
In accordance with: IEC 61643-1 - Class II and UL1449 Type 4 Location
Location of use: Photovoltaic Combiner Box & Photovoltaic Power Supply Box
Plug-in module and separate base design enables convenient maintenance.
WTH-40/C/3P-DC Series
Model Uc(DC) Up Ures Ordering code
WTH-40/C/R/3P-DC750 750V 3.2kV 2.5kV US120421
WTH-40/C/R/3P-DC1000 1000V 3.4kV 2.8kV US120422
WTH-40/C/R/3P-DC1500 1500V 4.2kV 3.2kV US120423
※ Uc: Max. continuous operating voltage
※ 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 @10/350) N/A
Protection Modes DC+/PE, DC-/PE, DC+/DC-
Protective Element MOV
Follow Current (If) NO
Response Time (tA) <5ns
Leakage Current (at 75%U1mA) <20μA
Thermal Protection YES
Protection Rating (IP Code) IP 20
Short Circuit Current Ratings (SCCR) 25kA 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 0.73Lb (330g)
Package Dimension (W×H×D) 2.5"×3.9"×2.7" (62mm×98mm×69mm)
Remote Contacts YES
Contact Ratings 125VAC/3A, 250VAC/1.5A
Terminal Cross Section Max. 1.5mm²
Stripping Length Contacts 0.25inches (6-7mm)
Remote Terminal Torque 0.25Nm
Connection Diagram
Dimensions
Fault Indication
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