RELIANCE ELECTRIC WR-D4007

Product Introduction:
The WR-D4007 is a rack-mounted switch-mode power supply module for Reliance Electric programmable servo controllers (PSC 4000), AutoMax distributed control systems, and DCS 5000 drive racks. It converts low-voltage AC input to regulated 24 V DC for logic circuits, CPU, and I/O modules.
Category:
Description
Technical Specifications:
  • Input Voltage:​ 85–132 V AC (single phase), 47–63 Hz
  • Output Voltage:​ 24 V DC regulated
  • Max. Output Current:​ 5 A (≈120 W)
  • Redundancy:​ Supports parallel/redundant operation with OR-ing diodes
  • Protections:​ Over-current, over-voltage, short-circuit, inrush current limiting
  • Indicators:​ Typically one green LED (“Power OK”)
  • Cooling:​ Convection (no fan)
  • Mounting:​ Plug-in card into Reliance system backplane / chassis
  • Certifications:​ UL, CSA, CE (per original datasheet)
  • Operating Temp.:​ 0 … +60 °C (typical for enclosed rack)
  • Status:​ Discontinued — available as legacy spare part
Applications:​ Steel rolling mills, paper machines, extrusion lines — any facility running Reliance AutoMax / PSC 4000 systems.
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