Emerson ASCO 300 Series Brochure & Specs
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Emerson ASCO 300 Series Brochure & Specs

Power transfer switches
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Series 300
We Keep Your Power On
fi
Power Transfer Switches

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Summary of Contents for Emerson ASCO 300 Series

  • Page 1 Series 300 We Keep Your Power On fi Power Transfer Switches...
  • Page 2 When the utility power has been restored, the ATS will automatically switch the load back, and after a time delay, it will shut down the engine. With an Automatic Transfer Switch, you are protected...
  • Page 3 Municipal The ASCO Series 300 Transfer Switch can be a critical component of a municipal government s emergency power backup system. Residents of townships, cities and counties rely on police, fire, ambulance/first aid and other critical public sector services.
  • Page 4 Series 300 Power Transfer Switches Maximum Reliability & Excellent Value With a Series 300 Transfer Switch, you get a product backed by ASCO Power Technologies, the industry leader responsible for virtually every major technological advance in the Transfer Switch industry.
  • Page 5 This permits the enclosures to be installed flush to the wall and still allows installation of all power cabling and connections from the front of the switch. Cable entrance plates are also standard on the 1600 and 2000 amp units to install optional side-mounted pull boxes for additional cable bending space.

  • Page 6: Voltage & Frequency Sensing

    85% of nominal. Time Delays Adjustable time delay to override momentary normal source outages to delay all transfer switch and engine- starting signals. Transfer to emergency time delay—Adjustable from 0 to 5 minutes for controlled timing of load transfer to emergency.

  • Page 7: Performance Features

    Simple and Accurate Adjustment of Voltage, Frequency and Time-Delay Settings Without Need for Meters and Variable Power Supplies Dip Switches for Enabling Built-In Control Functions Customer Control Interfaces Performance Features 600 volt spacing per UL and CSA standards. Interfacing relays are industrial grade, plug-in type with dust covers. Meets or exceeds the requirements for Electromagnetic Compatibility (EMC).
  • Page 8 The programmable engine exerciser incorporates a 7 day or 14 day time base with a digital readout display. Includes “with or without” load control switch for exerciser period. Accessory 14AA/14BA Auxiliary contacts to indicate position of main contacts.Two (2) for normal and two (2) for emergency position (one set is standard).
  • Page 9 Ordering Information for To order an ASCO Series 300 Power Transfer Switch, complete the following catalog number: Product Neutral Poles Amperes Code Blank 2 poles, Continuous Solid rating Neutral 3 poles, 30, 70, 104, 150, 200, Switched 230, 260, Neutral...
  • Page 10 30, 70, 100, 104, 150, 200A–add 1.5 in (38 mm) to the b) 230, 260, 400A - add 1.5 in (38 mm) to the depth. c) 1200A–type 4 & 12 not available–use 1600 amp switch d) 1600A–add 3 in (76 mm) to the height and 10 in to e) 2000, 2600, 3000A–type 4 &...

  • Page 11: Control Features

    ASCO Series 300 transfer switches. ASCO 386s are furnished as standard with a momentary-type selector switch to initiate transfer and retransfer. They can also be arranged for remote control via ASCO s communication products.
  • Page 12 The ASCO Series 300SE is listed to UL 891 standard for Dead-Front Switchboards, and meets all NEC requirements for service entrance equipment. Automatic Transfer Switch is listed to UL 1008 for total system loads. Sizes available from 70 through 3000 amps.
  • Page 13 Six 1/0 to 600 MCM 2600 Twelve 3/0 to 600 MCM 3000 Twelve 3/0 to 600 MCM Ordering Information for To order an ASCO Series 300SE Power Transfer Switch, complete the following catalog number: 3AUS Phase Amperes Product Neutral Code...
  • Page 14 Monitors and Controls Power Transfer Switches and Engine Generators Monitors Normal and Emergency Voltages and Frequency Indicates Transfer Switch Position and Source Availability Provides Transfer and Retransfer of Loads for System Testing View Normal and Emergency Voltage and Frequency Settings...
  • Page 15 PowerQuest ® PowerQuest ® VPi is a PC based software package. When combined with the ASCO Communication Interface Module (Acc 72A), the ASCO 5120 Telephone Interface Module and ASCO 5200 Series Power Manager, as shown above, it provides the most economical communication system for monitoring and control of power transfer switches and engine generators.
  • Page 16 Communication Interface Module to allow local, remote or web-enabled PowerQuest communications with ASCO ® An accessory 72A is required on each power transfer switch. 5100 Series Telephone Interface Module (for use with PowerQuest The ASCO Telephone Interface Module (TIM) allows users to dial directly into their ASCO communications network for monitoring and/or control.
  • Page 17 PC via PowerQuest ® can also collect data for both normal and emergency positions using auxiliary contact inputs from the transfer switch. Eight digital input and four digital outputs available for customer use. Communications Products for Series 300 Transfer Switches Description...

  • Page 18: Preventive Maintenance

    These services include comprehensive preventive maintenance programs, modifications, upgrades and emergency repairs. Systems serviced range in complexity from a single automatic transfer switch to multiple transfer switches and engine generators. ASCO Services is a wholly owned subsidiary and the exclusive OEM service arm of ASCO Power Technologies, the world’s largest manufacturer of power transfer switching and control equipment.

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