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Watanabe WPD-SEN SPD for 3-wire signal

Made in Japan
Manufacturer: Watanabe Electric Industry Co. Ltd
Model: WPD-SEN

This product protects measuring equipment from lightning surges.

Features

  • SPD for resistance thermometer (Pt100Ω) and potentiometer
  • Compliant with JIS C 5381-21
  • Necessary and sufficient protection capability Product containing

Specifications

Rated input voltage DC5V
impulse durability 10kA x 10 times (C2: 8/20μs)
1kA x 2 times (D1: 10: 350μs)
Voltage protection level (Up) 45 V or less (line to line)
400 V or less (to ground)
internal series resistance 2.2Ω±1%
Operation start voltage 8V or more (between lines)
limiting voltage 16V (line to line)
response time 3 ns (line to line)
0.1 μs (to ground)
Operation start voltage 8V or more (between lines)
discharge start voltage 150 V or more (to ground)
limiting voltage 16V (line to line)
Operating temperature and humidity -20 to +60°C 5 to 95% RH
External dimensions (HWD) 69×32.4×69mm
mass (weight) about 70g
Compliant standard JIS C 5381-21 Category C2, D1

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