Description
WTH-SG/TER DIN rail surge protective devices for control signal are applied to the surge protection of 4~20mA control signal and twisted data pair (RS232, RS422, RS485 etc.), which can prevent various dialing equipment from permanent damage or transient interruption arising from inductive overvoltage, over current and other transient surge voltage caused by surge and industrial noise, etc.
(Standards compliance: IEC61643-21)
Technical Data
Model |
WTH-SG/TER-S |
Ordering code |
US121006 |
Nominal operating voltage (Un) |
3-18VAC, 5-24VDC |
Max. continuous operating voltage (UC) |
23VAC, 33VDC |
Nominal Discharge Current (In @8/20μs) |
3kA (line to line) |
Max. Discharge Current (Imax @8/20μs) |
20kA (line to GND/PE) |
Voltage protection level (Up @line-line) |
60V @ 3kV (1.2/50) |
Voltage protection level (Up @line-GND/PE) |
65V @ 3kV (1.2/50) |
Max Line Current |
250mA (per line) |
Insertion Loss |
<0.5dB @1MHz |
Protective Element |
GDT, TVS |
Loop resistance |
2.0Ω |
Response Time (tA) |
<1ns |
Protect mode |
Difference mode & Common mode |
Connection mode |
1.5mm² wiring terminal |
Temperature Range |
- 40° to 176°F (-40° to 80°C) |
Relative Humidity |
0% to 95% noncondensing |
Maximum Operating Altitude |
10,000 feet (3000m) |
Cross-sectional area of earth lead |
3mm² multistranded / flexible |
Stripping Length Contacts |
0.25inches (6-7mm) |
Terminal Screw Torque |
Max. 0.25Nm |
Protection Rating (IP Code) |
IP 20 |
Surge Life at 0.5kA (8/20μs) |
>2000 events |
DIN Rail EN60715 |
35mm top-hat rail |
Housing Material |
Thermoplastic, UL94 V-0 |
Net Weight Per Unit |
0.16Lb (71g) |
Package Dimension (W×D×H) |
0.53"×2.56"×3.55" (13.5mm×65mm×90mm) |
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19" Rack Mounting Installation

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Connection Diagram

Dimensions

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