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Yokogawa PW482-11
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Yokogawa PW481-50
Yokogawa PW481-50
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Yokogawa PW502
Yokogawa PW502

Yokogawa PW482-11

Product Name:​ PW482 220–240 V AC Power Supply Module
Product Introduction:
Higher-power evolution of PW481 family, providing 24 V DC to Yokogawa FIO nodes and controllers. The “-11” code indicates 220–240 V AC input, standard type, ISA G3 anti-corrosion coating.
Category:
Description
Technical Specifications:
  • Input:​ 220–240 V AC
  • Output:​ 24 V DC
  • Output Current:​ 4.2 A (typical), up to 10 A in some node configs
  • Redundancy:​ Yes, 1+1 hot redundant
  • Switching Time on Failover:​ <10 ms
  • Protections:​ OCP, OVP, OTP
  • Indicators:​ LED for normal/redundant/fault
  • Temp Range:​ -10 °C to +55 °C
  • Cooling:​ Natural convection
  • Weight:​ ~1 kg
Functional Features:
  • External battery backup interface (24 V DC)
  • Dry-contact fault alarm output
  • G3 coating for sulfur/humid environments
Application Scenarios:
  • Refinery CENTUM VP cabinets
  • Offshore platform DCS nodes
  • Redundant power for safety-related I/O
Installation Requirements:
  • Install in P1/P2 slots of compatible FCU
  • Torque DIN/rail clips to spec
  • Leave 20 mm top/bottom clearance for convection
Usage Notes:
  • Battery backup must use 24 V DC sealed lead-acid or LiFePO₄
  • Do not load beyond 80% continuous for redundant pair
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