RELIANCE 57C493 PLC Module

• RELIANCE 57C493 AutoMax PLC Power Supply Module
• 

• Overview

  It is a 375W rack power supply module exclusively for Reliance AutoMax PLC rack system, supplies stable DC power to CPU, I/O and communication cards. Equipped with program memory lock switch, power & fault LED indicators.

  Key Specifications

  1. Input: 85–132 VAC, rated power 375W
  2. Insulation: 1500VAC isolation between input and rack
  3. Protection: Overvoltage, overcurrent, short-circuit auto cut-off
  4. Mechanical: Tri-slot rack-mounted, IP20 cabinet grade
  5. Operating temp: 0°C ~ 55°C; conformal coated PCB for industrial harsh environment
  6. Lifecycle: Discontinued legacy model, only for maintenance spare replacement

  Core Functions

  1. Provide regulated DC power for all AutoMax PLC rack modules
  2. Hardware key switch protects program memory from accidental erasure
  3. Real-time power/fault status indication for rapid troubleshooting
  4. Built-in multi-layer circuit protection to avoid rack component burnout

  Applications

  Maintenance spare part for old Reliance AutoMax automation systems: metal rolling mills, packaging lines, printing machinery, industrial motor control cabinets.

   
   
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The structure and details of the product：

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