Emerson 400A manual Rating Label, Table Of Contents, 381333-067 K, Operator’s Manual

Operator’s

Manual

Series 300

Automatic Transfer Switches

E–design, 260 and 400 A

DANGER is used in this manual to warn of a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING is used in this manual to warn of a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION is used in this manual to warn of a hazardous situation which, if not avoided, could result in minor or moderate injury.

Refer to the outline and wiring drawings provided with your ASCO Series 300 ATS for all installation details.

Rating Label

Each automatic transfer switch contains a rating label to define the loads and fault circuit withstand / closing ratings. Refer to the label on the transfer switch for specific values.

Do not exceed the values on the rating label. Exceeding the rating can cause personal injury or serious equipment damage.

An experienced licensed electrician must install the Automatic Transfer Switch (ATS).

TABLE OF CONTENTS

section-page

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Mounting and Line Connections . . . . . . . . . 1-1 Engine Starting Contacts . . . . . . . . . . . . . . . 1-2 Input / Output Label . . . . . . . . . . . . . . . . . . . . 1-2 Functional Test . . . . . . . . . . . . . . . . . 1-3, 1-4, 1-5

SEQUENCE OF OPERATION . . . . . . . . . . . 2-1

TESTING & SERVICE . . . . . . . . . . . . . . . . . . 3-1

Preventive Maintenance . . . . . . . . . . . . . . . . 3-1

Transfer Test . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Disconnecting the Controller . . . . . . . . . . . . 3-1

Manual Load Transfer . . . . . . . . . . . . . . . . . . 3-2

Trouble-Shooting . . . . . . . . . . . . . . . . . . . . . . 3-2

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . 4-1

Time Delay and Sensor Adjustments . . . . . 4-1

How to Change a Setting . . . . . . . . . . . . . . . 4-2

CONTROL FEATURES . . . . . . . . . . . . . . . . . 5-1

Engine Exercisers . . . . . . . . . . . . . . 5-1, 5-2, 5-3

Motor Load Transfer . . . . . . . . . . . . . . . . . . . 5-4

Load Disconnect & Remote Control . . . . . . 5-4

INDEX . . . . . . . . . . . . . . . . . . . . . back of manual

50 Hanover Road, Florham Park, New Jersey 07932–1591 USA	381333–067 K
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com

ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3