Emerson 386, GDESIGN 10003000 A manual Rating Label, Identification Label, Table of Contents

Operator’s

Manual

Series 386

Non–Automatic Transfer Switches

E–design 260–400 A, G–design 1000–3000 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.

Refer to the outline and wiring drawings provided with the ASCO Series 386 N–ATS for all installation details.

Rating Label

Each non–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.

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

G–design 1000–1200 A sizes

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

Identification Label

The identification label on the Transfer Switch includes data for each specific ASCO Series 386. Use the switch only within the limits shown on identification label.

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

TABLE OF CONTENTS

section-page

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Mounting and Line Connections . . . . . . . . . 1-1 Functional Test . . . . . . . . . . . . . . . . . . . . . 1-2, 1-3

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

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

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

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

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

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . 4-1 Sensor Adjustments . . . . . . . . . . . . . . . . . . . 4-1 How to Change a Setting . . . . . . . . . . . . . . . 4-1

OPTIONAL FEATURES . . . . . . . . . . . . . . . . . 5-1

Motor Load Transfer . . . . . . . . . . . . . . . . . . . 5-1

Load Disconnect . . . . . . . . . . . . . . . . . . . . . . 5-1

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

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