S&C Electric Company

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PMX™ Modular Metal-Enclosed Switchgear

Introduction

Combines the solid features of S&C System II Modular Metal-Enclosed Switchgear with the size and economic benefits of S&C Pad-Mounted Gear. The pre-engineered modules are designed for easy assembly into switchgear lineups to suit a variety of applications.

With ratings of 13.8 and 25 kV, switching for both entrance and feeder modules is handled by the rugged S&C Mini-Rupter® Switch, offering up to 600 amperes full-load dropping and 25,000 amperes duty-cycle fault-closing operations. Fault protection is provided by the full range of permanently accurate S&C Power Fuses including the S&C Fault Fiter® Electronic Power Fuse.

Each module is designed to withstand the rigorous “poke-and-pry” test required of all Pad-Mounted Gear (ANSI C57.12.28). This, combined with the low-profile and compact size, allows PMX Switchgear to be installed in areas accessible to the public without special site considerations.

PMX Switchgear features include:

  • Fully-rated for 600 amperes main bus and up to 25 kA fault current — handles the switching and protection needs of most applications.
  • Modular construction — any number of modules can be combined, along with metering or cable entrance modules, to create a lineup that’s right for your application.
  • Enhanced fuse handling option — PMX Switchgear utilizes an adaptation of S&C’s patented TransFuser™ Fuse Mountings, which effortlessly unlatches and pivots to the open position, making the de-energized and isolated fuse accessible for replacement.
  • Compartmentalization available — optional barriers separate cable termination sections from the main bus and switching sections.
  • Ideal for remote supervisory and automatic source-transfer applications — entrance modules can be furnished with power-operated switches and Micro-AT® Source-Transfer Control or S&C 5802 Automatic Switch Control.
  • Easy to install, anywhere — with its compact size, siting PMX Switchgear is easy. It’s designed for outdoor installation, so valuable in-plant real estate isn’t needed. PMX Switchgear is 64" tall at 13.8 kV and 76" tall at 25 kV.