Brochures and Data Sheets

ManualsBrandsEmerson ManualsPower Switching and ControlsEmerson ASCO 4000 Series Power Transfer Switch

• Conventional two-position transfer configuration,

plus closed and delayed transition modes of operation.

All configurations available with either automatic or

non-automatic control.

• UL listed to 1008 Transfer Switch Equipment &

CSA certified to CSA 22.2 No.178-1978 Automatic Transfer

Switches.

• Qualified to IEC 60947-6-1, CE marked (optional). (Limited

to certain accessories.)

• Rated up to 600 VAC, 30 through 4000 amperes.

• Reliable and field proven solenoid operating mechanism.

• High withstand and close-on ratings including short time

withstand current rating for optimum flexibility in circuit

breaker coordination (800-4000 amperes).

• Solid, switched neutral configurations available.

ASCO Power Transfer Switches are the standard of the

industry. High speed transfer of loads between alter-

nate sources of power, regardless of ampacity size, is

achieved by a reliable, field proven solenoid operating

mechanism. When combined with a programmable

microprocessor controller with keypad and LCD display,

they offer the most advanced method of transferring all

types of loads, such as motors, electronic drives, UPS’s

and microprocessor based systems. 4000 S

ERIES Power

Transfer Switches are available open or enclosed, in

ampacity sizes from 30 through 4000 amperes with a

limited selection of optional accessories.

• Front replaceable main and arcing contacts (800-4000 amperes).

• Programmable microprocessor controller with keypad and

LCD display.

• Industrial grade user interface with integrated controls and

indicating lights.

• Convenient one line diagram with switch position and source

acceptability LED indicators.

• Standard ground conductor connections.

• Four auxiliary contacts, two contacts closed when switch

is in normal position and two contacts closed when switch

is in emergency position.*

• Local/remote communications capability for interfacing

with ASCO

POWERQUEST

communication products.

4000 SERIES

4000 SERIES Power Transfer Switches

Product Features

Fig.

Three Pole 4000 S

ERIES Automatic Transfer Switch

rated 800 amperes

Only two contacts standard on 150-400A 4ACTS and 4NCTS

The Recognized Leader in Power Transfer

Switch Technology Offers the Most

Advanced Transfer Switches in the World.