ASCO Power Technologies Products Digital Binder

Simplified Bypass Operation

Group H ATS Controller

The Group H controller, based on decades of controls experience, governs all transfer switch operations. It supports open and delayed transition switching modes and offers: • Textual display of real-time status and information • LED indication of transfer switch position and source status • 3-Phase voltage and frequency measurements that are used for all control decisions • Standard event log for up to 300 transfer switch events • Programmable engine exerciser that suppor ts multiple schedules • Fully configurable pickup, dropout, and time delay settings • User-selectable in-phase transfer and common alarm output • Input for remote transfer commands and outputs for common alarm or pre/post transfer load disconnect

1

1. High visibility alarm and operating mode indicators

2. A simple one-line diagram indicates real-time switch and bypass status

2

3. Feedback regarding permitted and restricted operations 4. Single-button operation for each bypass position

3

4

5

Multiple Operating Configurations

5. Manual engine star t controls

4000 SERIES Electrically Operated Bypass Switches are available in automatic or non-automatic transfer models. Both types monitor voltage and frequency and allow transfer only when the alternate source presents acceptable characteristics. Automatic models start engine generators and transfer loads to the alternate source without human intervention. Non-automatic models require an operator to initiate these operations. Open Transition models offer fast transfer times that are suited for a wide range of applications. Delayed Transition models allow for an extended disconnect interval during a transfer, where neither source is connected to load. The disconnect position allows residual voltages caused by large inductive loads to dissipate before closing on the alternate source.

6. A single handle connects and isolates transfer switch for inspection, testing, or service

6

For Units with Type 1 Enclosures: Dimensions (inches): 34W x 28D x 85H Weight: ~950 pounds Contact ASCO for other enclosure details

seconds to minutes

milliseconds

Normal Source

Emergency Source

Normal Source

Emergency Source

Shown with optional power meter

Load

Load

Voltage

Voltage

Withstand and Closing Ratings (RMS Symmetrical Amps) 1, 2, 3

t

t

Open Transition

Delayed Transition

Short Time Ratings 4 (sec)

Switch Ratings (Amps)

Current Limiting Fuses

Specific Breaker

Time Based

480V Max.

600V Max.

Frame

Transfer Switches 150, 200, 260

Bypass Switches

480V Max.

600V Max.

Max Size, A Class

240V Max.

480V Max.

600V Max.

Time (sec)

240V Max.

480V Max.

600V Max.

.13 .2 .3 .5 .1 .13 .3 .5

600

J 200kA 200kA 42kA 0.05 65kA 42kA 5 35kA 7.5kA

150, 200, 230, 260 200kA 200kA

J

-

-

800

L

600

J 65kA 50kA 42kA 0.05 65kA 42kA 5 35kA 7.5kA

J

400

400

200kA 200kA

-

-

800

L

200kA 200kA 800

L 65kA 85kA 42kA 0.05 65kA 42kA 5 35kA 7.5kA 6

J

600

600

-

-

200kA 200kA 600

J

Notes: 1) All WCR values indicated are tested in accordance with the requirements of UL1008, 7th Edition. See ASCO Pub. 1128 for more WCR information 2) Application requirements may permit higher WCR for certain switch sizes 3) Contact ASCO for Service Entrance Switch ratings 4) Short Time ratings are provided for applications involving circuit breakers that utilize trip delay settings for system selective coordination 5) Switches utilizing overlapping neutral (code “C”) have 35kA, 0.050 Sec time based rating at 480V Max 6) Short Time Rating applies to 600A Bypass switch only, the 600A Transfer Switch does not have a Short Time Rating