The 57C493 Reliance Automax Automate Power Supply is in stock. Call or Email for New or Remanufactured Availability. We offer the lowest prices on the market. Technical Information The Power Supply modules and Racks are sold individually. M/N 57C493 contains one 376 watt Power Supply module and two keyswitch keys. M/N 57C494 contains one 147 watt Power Supply module and two keyswitch keys. M/N 57C331 contains one 16 slot Rack. M/N 57C332 contains one 10 slot Rack. M/N 57C334 contains one 6 slot Rack. One Power Supply module and one Rack are used with various input, output, and special purpose modules, as well as the following hardware and software, which can be purchased separately: 1. AutoMax or DCS5000 Processor modules. The following Processor modules can be used only with the M/N 57C493 Power Supply module:M/N 57C430 AutoMax Processor(s) or M/N 57C407 DCS5000 Processor(s). Note that all Processors in a single Rack must be of the same type, i.e., AutoMax and DCS 5000 Processors cannot be mixed in one Rack. D M/N 57C430 AutoMax Processor D M/N 57C407 DCS5000 Processor Note that all Processors in a single rack must be of the same type, i.e., AutoMax and DCS5000 Processors cannot be mixed in the same rack. The following AutoMax Processors can be used with the M/N 57C493 or M/N 57C494 Power Supply module. These processor modules can be mixed in the same rack D M/N 57C430A D M/N 57C431 D M/N 57C435 2. ReSource AutoMax Programming Executive software or ReSource DCS 5000 Programming Executive software. 3. M/N 57C127 RS 232C ReSource Interface Cable. This cable is used to connect the personal computer to the Processor module. 4. M/N 57C413 (or later) or M/N 57C423 (or later) Common Memory module. This module is used when there is more than one Processor in the Rack. Note that only M/N 57C413B (and later) or M/N 57C423 (and later) Common Memory module can be used with the M/N 57C494 Power Supply. 5. M/N 57C492 Battery Back Up. This unit is used when there is a Common Memory module (M/N 57C413 or M/N 57C413A only), a M/N 57C407 or M/N 57C430 Processor, or both in the Rack. The Battery Back Up unit can be used only with the M/N 57C493 Power Supply. 6. M/N 57C384 Battery Back Up cable. This cable is used with the Battery Back Up unit.