ASCO 7000 Series Automatic TransferBypass-Isolation Switches

Automatic Transfer Bypass-Isolation Switches are available in open transition, closes transition and delayed transition designs, plus each configuration is available with a service entrance rating. The bypass isolation feature allows the power transfer switch to be inspected, tested and maintained without interrupting power to the load. The 7000 Series also includes a Microprocessor Based Controller, which represents the most advanced digital based micropro-cessor control panel in the industry. It includes, as standard, all of the voltage, frequency, control, timing and diagnostic functions required for most emergency and standby power applications.

ASCO Now Offers Drawout Transfer Switch Design From 150 to 3000 Amperes

Features

• Draw out design for power transfer switch for ease of maintenance• Allows bypass-isolation of transfer switch without load interruption• Both transfer switch and bypass switch have identical ratings• Heavy-duty mechanical inter- locks prevent undesirable operation• Bypass contacts carry current only when in bypass mode• Bypass and isolation handles are permanently mounted. The bypass switch has dead front, quick-make break operation for transferring loads between live sources• Redundant LED’s and mech- anical indicators provide guaranteed indication of trans- fer and bypass switch positions

• Bypass switch is fully rated for use as a manual three position transfer switch for emergency load transfer when transfer is isolated for maintenance• Bypass and isolating function is simple, requiring a total of two operating handles. No toggle switches, push-button or levers are required for operation.• UL Listed to 1008 Transfer Switch Equipment and CSA Certified to CSA 22.2 No 178-1978 Automatic Transfer Switches.

800-1200 Amperes

1600-3000 Amperes

150-600 Amperes

800-800-ASCO www.ascopower.com 50 Hanover Rd, Florham Park, New Jersey 07932 U.S.A. .Publication 3096 R3

July, 2008 Printed in the U.S.A.

ASCO 7000 Series Automatic TransferBypass-Isolation Switches

Transfer-Bypass Status PanelIn addition to mechanical indicators to show bypass switch position and

whether the transfer switch is in the connected, test or isolated posi-

tion, a transfer/bypass LED status panel is also provided.

Eleven LED Indicators embedded on a one-line diagram of the transfer

and bypass contacts, source availability and load connection status :

•Bypass to normal

•Bypass to emergency

•Load connected to normal

•Load connected to emergency

•Transfer switch in connected position

•Transfer switch in test position

•Transfer switch not in automatic (flashing)

•Normal source available

•Emergency source available

•Load connected

•Lamp test button

•Engine start switch for emergency transfer initiation when transfer

switch is isolated or removed for maintenanceBypass Transfer Status Panel

Transfer Switch Draw out Features

• Automatic secondary disconnects

remove all control power as transfer

switch is withdrawn

• Draw out carriage provides for easy

transfer switch maintenance

and/or removal

• Self aligning jaws provide positive

connection of bus connection during

reconnection of transfer switchBypass-Isolation Transfer switch secondary disconnects

Bypass-Isolation Transfer Switch self aligning power jaws