Power Transfer Switch, ATS | ASCO Series 300 Group G | Emerson


ASCO Series 300 Group G Power Transfer Switch

Emerson Network Power > CHINA > Products > By Type > Power Switching and Controls > Power Transfer Switches > ASCO Series 300 Group G Power Transfer Switch

View These Series 300G Videos
300 G Intro 300 G Normal Operation | 300 G OTTS Operation 
300 G Inphase Operation | 300 G DTTS Operation

The ASCO Series 300 was designed to automatically transfer critical loads in the event of a power outage. It is also designed to handle total system loads including motors and other high inrush and inductive loads. 
The ASCO Series 300's modular, compact design makes it easy to install, inspect and maintain-- all parts are accessible from the front so switch contacts can be easily inspected.
The ASCO Series 300 assure the user of many years of reliability through its rugged construction and proven performance.

Product Features

  • The Series 300 is listed to UL 1008 standard for total system loads
    and CSA standard C22.2 for automatic transfer switches.
  • Meets NFPA 110 for Emergency and Standby Power Systems
    and the National Electrical Code (NEC) Articles 700, 701 and 702.
  • Controller is RoHS compliant (Restriction of Hazardous Substances).
  • 30 through 3000 amps in a compact design.
  • Available to 600 VAC, single or three phase.
  • True double-throw operation: The single solenoid design is inherently inter-locked and prevents contacts from being in contact with both sources at the same time.
  • There’s no danger of the Series 300 ATS transferring loads to a dead source because the unique ASCO single-solenoid operator derives
    power to operate from the source to which the load is being transferred.
  • Easy to navigate 128x64 graphical LCD display with keypad provides LED indicators for switch position, source availability, not in auto, and alert
  • Integrated multilingual user interface for configuration and monitoring.
  • Delayed transition operation is now available (Dual Operator Configuration).
  • Non-automatic operation can be selected using the key pad without opening enclosure door.
  • Relay expansion module with extra relays for accessory outputs (Optional).
  • Includes soft keys for test function and time delay bypass as standard features.
  • Historical event log (Optional).
  • Statistical ATS system monitoring information
  • Diagnostic Functions.
  • Password protection to prevent unauthorized tampering of settings.
  • Adjustable time-delay feature prevents switch from being activated due to momentary utility power outages and generator dips.
  • Supplied with solid neutral termination.
  • Optional switched neutral pole available.
  • Field modification accessory kits available.
  • Available for immediate delivery.
Field Conversion Kits for Series 300 Group G Transfer Switches

Kit No. Description
935147 Feature Bundle Includes Engine Exerciser/Event Log/RS 485/Common Alarm Output Contact (Acc. 11BE) Dongle
935148 REX Module with Source Availability Contacts (Acc. 18RX)
935149 UPS to allow controller to run for 3 minutes minimum without AC Power
935150  1 / 3 Phase load current sensing card only (Acc. 23GA/GB)
K613127-001 Strip Heater (125 watt) 120 volt (Acc.44A)
K613127-002 Strip Heater (125 watt) 208 - 480 volt (Acc.44G)
948551 Quad - Ethernet Module (Acc. 72EE)
K60927 Cable Pull Box (1600 - 2000 amp)
Misson-Critical Care
Our comprehensive service portfolio extends beyond routine maintenance to include solution upgrades and technology training that ensure you get the most from your emergency power systems.

1 800 800 ASCO (2726)