Emerson 7000 User Manual

We Keep Your Power On

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Series 7000

Power Switching and Control Solutions for

Critical and Distributed Power Applications

Healthcare Facilities

Commercial Buildings / Industrial Buildings

Web Hosting, Internet Data Centers

Telecom Central Offices

Process Manufacturing / Wafer Fabrication Plants /

Distributed Power / Load Management

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Critical Loads Demand ASCO

Series 7000

ASCO

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As we become more dependent on the quality and reliability of electrical power, interruption or complete loss of power can create serious and even crippling financial losses, or impose dangers to life and safety.

ASCO Power Technologies (ASCO) provides the solutions to handle the transfer of critical loads to emergency sources reliably and with state of the art products. Using ASCO products can mean the difference between a minor inconvenience and a major catastrophe. You’ll find ASCO Power Transfer Switches wherever there is a critical load to be protected.

When flexibility in power switching is a must, ASCO offers a variety of product solutions to meet virtually every application requirement, including distributed generation applications. That’s why the 7000 Series is available in open, delayed, closed and closed soft load configurations. Additionally, switched or overlapping neutral options provide for reliable operation of ground fault protection systems and reduction of voltage transients from unbalanced load switching.

ASCO Power Transfer Switches are the first CE Marked, IEC 609476-1 compliant Transfer Switches in the world which have been certified by a notified body of the European Union.

The Recognized Leader in Power Transfer Switch Technology

• 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.

• Independently qualified and certified 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 (600-4000 amperes).

• Solid, switched, or overlapping neutral conductor options.

ASCO Power Transfer Switches are the standard of the industry. High speed transfer of loads between alternate 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, UPSs and microprocessor based systems. 7000 Series Power Transfer Switches are available open or enclosed, in ampacity sizes from 30 through 4000 amperes with the largest selection of optional accessories offered anywhere. All switching configurations are available with an integrally mounted bypass-isolation switch and/or rated for use in service entrance applications.

• Front replaceable main and arcing contacts (600-4000 amperes).

• Programmable microprocessor controller with keypad and

LCD display.

• Centrally located terminal block for customer control

connections (260-4000 amperes).

• 16mm, industrial grade control switches and indicating lights.

• Switch position LED indicators and source acceptability

lights.

• 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

or SiteWebTMcommunication

products.

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7000 Series

7000 Series Power Transfer Switches Product Features

Offers the Most Advanced Transfer Switches in the World.

Fig. 1: Three Pole 7000 Series Automatic Transfer Switch

rated 1600 amperes (shown with optional front

connected terminals and Power Manager).

ASCO

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Delayed Transition Transfer Switching

Fig. 3: Four pole, Delayed-Transition

Transfer Switch rated 2000 amperes.

ASCO Delayed Transition Transfer Switches are designed to provide transfer of loads between power sources with a timed load disconnect position for an adjustable period of time. Applications include older style variable frequency drives, rectifier banks, and load management applications.

• Available 150 through 4000 amperes.

• Utilizes reliable, field proven solenoid operating

mechanisms.

• Mechanical interlocks to prevent direct connection of

both sources.

• Indicator light (16mm, industrial grade

type LED) for load disconnect position.

• Adjustable time delay for load disconnect position.

Closed-Transition Transfer Switching

ASCO Automatic Closed-Transition Transfer Switches feature main contacts that overlap, permitting the transfer of electrical loads without power interruption. The switch transfers in a make-before-break mode if both sources are within acceptable parameters. Control logic continuously monitors source conditions and automatically determines whether the load transfer should be open (conventional non-overlap mode) or closed transition. Available 150 through 4000 amperes.

Closed-Transition Transfer within 5 electrical degrees is achieved passively, without control of engine generator set. Therefore, no additional control wire runs are required between the ATS and engine generator set governor. Plus, protective relaying may not be required under normal operation since the contact overlap time is less than 100 milliseconds (consult your local utility on protective relay requirements).

Failure to synchronize indication and extended parallel time protection is built-in to all 7000 Series closed transition controls to prevent abnormal operation.

Fig. 2: Four pole, Closed-Transition Transfer

Switch rated 1000 amperes in Type 1 enclosure.

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7000 Series Power Switching Solutions

ASCO

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150, 260, 400

600, 800

1000, 1200

1600, 2000

3000

4000

UL 1008 Withstand and Close-On Ratings at 480 Volts AC

Withstand and Close-On Ratings for all 7000 Series Products

(1)(2)

Notes: 1) All values are available symmetrical RMS amperes and tested in accordance with the withstand and close-on requirements of UL 1008.

See publication 1128 for more information on withstand and close-on ratings for ASCO transfer switches.

2) Application requirements may permit higher withstand ratings for certain size switches. Contact ASCO for guidance if available short circuit current exceeds the WCR ratings shown.

3) “Any” breaker ratings are based on 1.5 cycles for 30 - 230 amp & 3 cycles for 260 - 4000 amps. Applicable to breakers with instantaneous trip elements.

4) Short time ratings are provided for applications involving breakers that do not have instantaneous trips for system coordination.

5) Short time rating applicable to transfer switch design only.

6) Optional front connected service limited to 85,000 amps for specific and any breaker rating.

Non-Automatic Transfer Switching

ASCO Non-Automatic Transfer Switches are electrically operated units which are operated with manual control switches mounted locally or at remote locations.

• Sizes from 30 through 4000 amperes.

• Microprocessor based controller provides for addition

of optional accessories.

• Controller prevents inadvertent operation under low

voltage conditions.

• Low control circuit operating currents allow for long

line runs between remotely mounted manual control switches and the transfer switch.

• Source acceptability lights inform operator if sources

are available to accept load.

• Standard inphase monitor can be activated for

transferring motor loads.

Fig. 4: Three pole Non-Automatic,

electrically operated 400 ampere switch

shown in Type 1 enclosure.

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70, 100, 150, 200

230

260, 400

600, 800,

1000, 1200

1600, 2000

3000

4000

100,000

200,000

100,000

200,000

10,000

35,000

50,000

100,000

N/A

36,000

65,000

Short Time

Withstand Ratings(4)

Short Time

Duration

(Cycles)

“Any” Breaker

(3) Rating

Specific Breaker

Rating

10,000

22,000

42,000

65,000

100,000

Max. Fuse Type

amps

types

200

300

600

1600

3000

4000

6000

Current - Limiting

Fuse Rating

Bypass Switches

Transfer Switches

Switch Rating (Amps)

7000 Series Power Switching Solutions

ASCO

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Automatic Transfer Bypass-Isolation Switching

ASCO Automatic Transfer & Bypass-Isolation Switches are available in open transition, closed transition and delayed transition designs. The bypass and isolation features allow power transfer switches to be inspected, tested, and maintained without any interruption of power to the load.

• Available 150 to 4000 amperes.

• Allows bypass-isolation without load interruption.

• Bypass switch and transfer switch have identical electrical ratings.

• Heavy duty mechanical interlocks prevent undesirable operation.

• Bypass contacts carry current only during bypass mode.

• Transfer switch is drawout design for ease of maintenance.

• Bypass and isolation handles are permanently mounted. The bypass

switch has dead front quick-make, quick-break operation for transferring of loads between live sources.

• Bypass switch is fully rated for use as a manual 3-position

transfer switch.

• Bypass and isolation functions are simple, requiring a total of two

operating handles.

• No toggle switches, push buttons, selector switches or levers are

required for bypass-isolation operation.

• Mechanical indicators show bypass and transfer switch positions.

Fig. 5: Three Pole 7000 Series Automatic Bypass-

Isolation Transfer Switch Rated 1000 Amps

Transfer Switch Drawout Features (600-3000 amperes)

• Automatic secondary disconnects

remove all control power as switch is withdrawn.

• Drawout carriage provides for easy

transfer switch maintenance and/or removal via commercially available breaker hoists.

• For optional transfer switch lifting yoke,

specify accessory 82B.

• For optional automatic shutters which

close when the transfer switch is withdrawn to provide bus isolation, specify accessory 82C.(1600-3000A only)

Automatic

Secondary

Disconnects

Automatic

Shutters

(optional)

Fig. 6: Bypass-Isolation Transfer

Switch secondary disconnects and

optional automatic shutters.

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Self

Aligning

Jaws

Fig. 7: Bypass-Isolation

Transfer Switch self

aligning power jaws.

7000 Series Power Switching Solutions

ASCO

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Push in bypass handle and turn it counter clockwise

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Bypass Switch

Automatic Transfer Switch

Bypass Switch

Automatic Transfer Switch

Bypass Switch

Automatic Transfer Switch

Turn isolation handle counter clockwise until window shows “Test”

Mechanical isolation handle position

window (connected/test/isolate)

Padlocking provisions

Mechanical bypass switch position flags

Turn isolation handle counter clockwise until window shows “Isolate”

Bypass to Normal

Test Position

Isolation Position

Isolation Handle

Bypass Handle

Isolation Handle

Isolation handle

Bypass and Isolation Handles - Simple as 1, 2, 3

Key:

Represents Current Flow

In test position control panel remains energized to allow for electrical operation of a transfer switch.

7000 Series Power Switching Solutions

Fig. 9: Bypass-Isolation

Switch user interface

Source

availability

Bypass switch

position

Transfer

switch

position

Isolation handle position

Not in “auto” flashing LED

Fig. 8: Transfer Bypass

Status Panel

LED Indicators

ASCO

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7000 Series Service Entrance Power Transfer Switches

The ASCO Service Entrance Power Transfer Switch combines automatic power switching with a

disconnect and overcurrent protective device on the utility source. The power transfer switch meets all National Electric Code requirements for installation at a facility’s main utility service entrance. Service entrance rated transfer switches generally are installed at facilities that have a single utility feed and a single emergency power source. A circuit breaker serves as the utility disconnect and links are provided to disconnect both neutral and ground connections.

This product is UL 1008 and UL 891 listed and is available up to 600V and 4000A in Standard, Delayed, Closed Transition, Soft Load, and Bypass Isolation Configurations.

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Standard Features

• Available from 150 to 4000 amperes

• ASCO 7000 Series Power Transfer Switch,

UL 1008 Listed

• Standard UL Type 1 Enclosure

• Disconnect and overcurrent protective device on

the utility source: molded case circuit breaker 150 to 2000 Amp; insulated case 3000 to 4000 Amp

• Disconnect link on Neutral

• Disconnect link on Ground

• Ground and Neutral Bus, all silver-plated copper

• Solderless screw type terminals for External

Power Connections

• Labeled UL 891, meets all NEC requirements for

service entrance

• Internet Enabled Command and control available with optional

ASCO SiteWeb™

Neutral

Disconnect

Link

Ground Disconnect

Link

Ground Fault

Current

Transformer

Utility

Circuit

Breaker

AT S

Emergency

Load

GFCT Ground Fault

Current Transformer

ATS - Automatic Transfer Switch

Switched

Neutral

One line diagram of a typical service entrance rated transfer switch available in Solid, Switched or Overlapping Neutral

* Ground fault trip protection provided on sizes of 1000 amperes

and above

ASCO

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Fig. 10: Ground and neutral

disconnect links

70 - 225 36.5 (927) 48.5 (1232) 13.25 (337) 408 (188)

250, 400 36.5 (927) 48.5 (1232) 13.25 (337) 408 (188)

600, 800 38 (965) 91 (2311) 28 (711) 820 (378)

1000-1200 38 (965) 91 (2311) 48 (1219) 1105 (510)

1600, 2000 38 (965) 91 (2311) 48 (1219) 2590 (1198)

3000 38 (965) 91 (2311) 72 (1829) 4590 (2148)

4000 46 (1168) 91 (2311) 72 (1829) 5640 (2609)

Optional Features

The Example Catalog Number above is 7AUSB3400N5XC (X is used to specify optional accessories).

•

Enclosures - Secure Double Door

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UL Type 3R w/strip heater & thermostat

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UL Type 4X

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UL Type 12

•

Connections

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Crimp lugs



Bus Riser on Normal, Emergency or Load

•

Protective Relays/Metering

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ASCO 5200 Series Power Manage

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Surge Suppression

 ASCO 451, 80KA Surge protector (see pg. 14)

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Communications

 ASCO 72A Communication interface module  ASCO PowerQuest

 ASCO 5500 Series Thin Web Server for internet

connection

•

Additional Breaker(s)

 Circuit Breaker on Emergency  Load Distribution Panel

7000 Series Service Entrance Power Transfer Switches

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Consult ASCO for additional features

Dimensions and Weights for non-bypass configurations only in type 1 enclosures. Consult ASCO for all other product configurations.

Height

inches (mm)

Width

inches (mm)

Switch Rating

amps

Depth

inches (mm)

Weight

lbs (kg)

A Automatic

N Non-

Automatic

C Type 1 enclosure M Type 3R secure

double door

N Type 4 secure

double door

P Type 4X secure

double door

Q Type 12 secure

double door

US Conventional

2-Position

UB Open

Transition Bypass

CUS Closed

Transition

CUB Closed

Transition Bypass

DUS Delayed

Transition

DUB Delayed

Transition Bypass

--- No Neutral A Solid Neutral B Switched

Neutral

C Overlapping

Neutral

2 3

70 100 150 200 225 250 400 600 800

1000 1200 1600 2000 3000 4000

C 208 D 220 E 230 F 240 H 380 J 400 K 415 L 440 M 460 N 480 P 550 Q 575 R 600

5X-

optional

acces-

sories

Ordering Information

Product

Neutral

Code*

Phase

Poles

Voltage

Code

Grp

Code

Enclosure

Amperes

To order an ASCO 7000 Series Service Entrance Power Transfer Switch, complete the following catalog number.

7 A US + B + 3 + 400 + N + 5X + C

*Note. Switches rated 150, 600-3000 amps available with 2, 3 or either conventional switched neutral (4 poles) or overlapping neutral (optional). For 4 pole applications on switches rates 260 to 400 amps and 4000 amps specify overlapping switched neutral (optional). Conventional switched neutral is provided on delayed transition transfer products when specified.

ASCO

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