Electrical Features: 

• Listed under UL 1008, CS certified:
  1. UL Listed through 480 VAC
  2. CSA certified through 600 VAC
• Door-mounted selector switch for local, manually initiated electrical control
• Sizes for 30 through 3000 amps
• Available t600 VAC, 50 or 60 HZ
• Rated for all classes of load transfer
• 100% tungsten load ratings through 400 amps
• Designed for emergency and standby applications
• Same withstand and close-on rating as Series 300

Standard Selectable Control Features:

• Inphase monitor ttransfer motor loads between live sources, without any intentional off time, tprevent inrush currents from exceeding normal starting levels
• Selective load disconnected, double-throw contact toperate at an adjustable 0 t20 second time delay prior ttransfer and reset 0 t20 seconds after transfer
• High/Low nominal voltage setting allows user tadjust for source low reduced voltage conditions in remote areas
• 60 Hz or 50 Hz selection switch
• Single/Three-phase selection Switch

Control Features:

• Switch position indicating signal lights
• One auxiliary contact, closed when transfer switch is connected tnormal and one closed on emergency, standard feature 14A/14B 

• 6Q Key-operated, momentary source selector switch furnished instead of the standard selector switch.
• 9C, 9D Source availability lights to provide operator with a local indication of power source availability.
• Accessory 14AA/14BA auxiliary contacts to indicate position of main contacts. Two (2) for normal position and two (2) for emergency position (one set is standard).
• 72A Communication interface module (RS-485) to allow local or remote communications with ASCO PowerQuest® or SITEWEBTM communications products.
• 72E Connectivity Module 5150 is used to bring several different serial devices that communicate at different baud rates and with different protocols to a common Ethernet media.
• Special enclosures (Specify by appropriate code in catalog number):
  • Type 3R: Rain tight
  • Type 4: Weatherproof
  • Type 12: Oil Tight