Power Transfer Switches

ASCO 7000 SERIES Soft Load Power Transfer Switch

The transfer switch can be programmed to either maintain parallel operation of both power sources, or transfer the load to the onsite generating unit, avoiding transients caused by block loading.

Best Suited For
  • Banking, Financial and Insurance
  • Broadcast and Entertainment
  • Construction and Engineering
  • Data Center/Colocation/Hosting
  • Education
  • Fire/Alarm/Security
  • Government
  • Healthcare
  • Manufacturing
  • Oil and Gas
  • Power Generation
  • Power/Gas Transmission and Distribution
  • Telecom
  • Transportation
  • Retail and Wholesale
Limited Guardian Warranty

Specifications

Specifications per model ASCO 7000 SERIES Soft Load Power Transfer Switch
Ampere Size Pole Count Voltage Enclosure Type Height (in / mm) Width (in / mm) Depth (in / mm) Weight (lbs / kgs)
150 - 4000A 3 208 - 600V Type 1, 3R 56 - 91 / 1422 - 2311 24 - 60 / 610 - 1524 14 - 96 / 356 - 2438 325 - 6900 / 148 - 3130
* To view a specific model product page click on the model name above.

Downloads

*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.

Features

Power transfer using proven ASCO Closed-Transition Transfer Switches (CTTS).
Automatic emergency standby transfer operation upon loss of utility power.
Active synchronization of the onsite generating unit to the utility source through automatic adjustment of the generating unit's governor and voltage regulator (analog or pulse width modulated outputs control the governor).

Benefits

Seamless load transfer between acceptable utility power and onsite generation with virtually no voltage or frequency transients for maximum efficiency.
Enables monitoring and control of soft load operation using GUIs ( graphical user interfaces) with user-friendly, pull- down menus.
Allows activation of protective functions using the touch screen (each function can be programmed to signal an external breaker and/or alarm signal, or just display the condition on the GUI).

Services & Support

Support

Contact 800-800-ASCO (2726) or customercare@asco.com for Product Wiring, Diagrams and Drawings.

Frequently Asked Questions
Q
Where can I send remote transfer signal?
A
The transfer switch has a feature connected to the field connections terminal block (TB) called Feature 17 or Remote Transfer to Emergency Feature. This requires a customer supplied normally open contact wherein closing of the contact causes engine start and transfer to the emergency source.
Q
How does the ATS work?
A
The ATS works like a conventional open transition transfer switch. The transfer switch main contacts moves in a quick break - before make mode transition. There is no momentary parallel connection of the two sources and no extended center-off position during transfer. The transition is quick. The ATS controller monitors the voltage and frequency of the two sources (upon re-transfer or any transfer between 2 “live” sources) and ensures that they are in-phase before the load is transferred (if enabled).
Q
How will I know if the controller is damaged?
A
The controller is damaged if the display doesn’t work; If there are extensive signs of burns on the PC board; If the OP and NR relays are no longer functional.
Q
Why won't the ATS transfer to Emergency?
A
The ATS won’t transfer to Emergency if: Emergency is unavailable; The Transfer to Emergency Inhibit is activated; The Load Shed from Emergency feature is activated; The solenoid operator is damaged; The ER relay is damaged; The controller is damaged; There is mechanical failure.
Q
Where do I connect the engine start wires?
A
The engine start contacts are also known as feature 7 and 8. Feature 7 is a contact that closes to send an engine start signal and Feature 8 is a contact that opens to send an engine start signal. Refer to the transfer switch wiring diagram for the terminal connections. To request for a wiring diagram just take note of the Serial no., BOM no. and the Catalog no. of the transfer switch and call 1-800-800-ASCO (2726) option 33.

Contacts

Sales In USA Change Location
ASCO Power Technologies (Maryland, Southern Delaware, Washington DC and VA)
Email Contact +1 571 313 8041 Fax +1 703 342 0391
12310 Pinecrest Road, Suite 204 Reston Virginia 20191 USA
Product areas of focus: Power Transfer Switches, Paralleling Switchgear, Power Control and Monitoring
ASCO Power Technologies (Maryland, Southern Delaware, Washington DC and VA) Justin Mitros
Email Contact +1 571 313 8041 Fax +1 703 342 0391
12310 Pinecrest Road, Suite 204 Reston Virginia 20191 USA
Product areas of focus: Power Transfer Switches, Paralleling Switchgear, Power Control and Monitoring
Support Change Location
ASCO Services, Inc.
50 Hanover Road Florham Park New Jersey 07932
Product areas of focus: Power Transfer Switches, Paralleling Switchgear, Power Control and Monitoring

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