Industrial Generator Sets

Models:

350--500REOZJ350--500REOZJB

Controllers:

Decision-Maker� 550

Decision-Maker� 3000

Decision-Maker� 6000

TP-6797 1/13b

Wiring Diagrams

Product Identification Information

Product identification numbers determine service parts.

Record the product identification numbers in the spaces

below immediately after unpacking the products so that

the numbers are readily available for future reference.

Record field-installed kit numbers after installing the

kits.

Generator Set Identification Numbers

Record the product identification numbers from the

generator set nameplate(s).

Model Designation

Specification Number

Serial Number

Accessory Number Accessory Description

Engine Identification

Record the product identification information from the

engine nameplate.

Manufacturer

Model Designation

Serial Number

Controller Identification

Record the controller description from the generator set

operation manual, spec sheet, or sales invoice.

Controller Description

TP-6797 1/13 3Introduction

Introduction

This manual provides wiring diagrams for the

350--500REOZJ and 350--500REOZJB generator sets

equipped with one of the following controllers:

� Decision-Maker� 550

� Decision-Maker� 3000

� Decision-Maker� 6000

Information in this publication represents data available

at the time of print. Kohler Co. reserves the right to

change this publication and the products represented

without notice and without any obligation or liability

whatsoever.

Service Assistance

For professional advice on generator set power

requirements and conscientious service, please contact

your nearest Kohler distributor or dealer.

� Consult the Yellow Pages under the heading

Generators—Electric.

� Visit the Kohler Power Systems website at

KohlerPower.com.

� Look at the labels and stickers on your Kohler product

or review the appropriate literature or documents

included with the product.

� Call toll free in the US and Canada 1-800-544-2444.

� Outside the US andCanada, call the nearest regional

office.

Headquarters Europe, Middle East, Africa

(EMEA)

Kohler Power Systems

3 rue de Brennus

93200 Saint Denis

France

Phone: (33) 1 49 178300

Fax: (33) 1 49 178301

Asia Pacific

Power Systems Asia Pacific Regional Office

Singapore, Republic of Singapore

Phone: (65) 6264-6422

Fax: (65) 6264-6455

China

North China Regional Office, Beijing

Phone: (86) 10 6518 7950

(86) 10 6518 7951

(86) 10 6518 7952

Fax: (86) 10 6518 7955

East China Regional Office, Shanghai

Phone: (86) 21 6288 0500

Fax: (86) 21 6288 0550

India, Bangladesh, Sri Lanka

India Regional Office

Bangalore, India

Phone: (91) 80 3366208

(91) 80 3366231

Fax: (91) 80 3315972

Japan, Korea

North Asia Regional Office

Tokyo, Japan

Phone: (813) 3440-4515

Fax: (813) 3440-2727

Latin America

Latin America Regional Office

Lakeland, Florida, USA

Phone: (863) 619-7568

Fax: (863) 701-7131

TP-6797 1/134 Wiring Diagrams

Wiring Diagrams

Use the Wiring Diagram Cross-Reference chart to

determine the wiring diagram version number for a

given model number and spec number. Then find that

version number and the controller type on the Wiring

Diagrams Reference chart to determine the wiring

diagram numbers for your unit. Refer to Controller

Identification for controller type identification, if

necessary.

Wiring Diagram Cross-Reference

Generator SetModel No. Hz

Generator SetSpec No.

WiringDiagramVersion No.

350REOZJ 60 GM76156-GA1 1

350REOZJB 60 GM85455-GA1 1

400REOZJ 60 GM76156-GA2 1

400REOZJB 60 GM85455-GA2 1

500REOZJ 60 GM76157-GA2 1

500REOZJB 60 GM85455-GA3 1

350--500REOZJ and 350--500REOZJB

Wiring Diagrams Reference

Controller Description Version 1 Page

Decision-Maker� 550Controller

Point-to-Point Wiring Diagram

Sheet 1 GM77988A- 14

Sheet 2 GM77988B- 15

Schematic Diagram

Sheet 1 ADV-7999A- 8

Sheet 2 ADV-7999B- 9

Accessory Connections

Sheet 1 GM78247A-D 19

Sheet 2 GM78247C-D 21

Sheet 3 GM78247D-D 22

Decision-Maker� 3000Controller

Point-to-Point Wiring Diagram

Sheet 1 GM77987A-A 12

Sheet 2 GM77987B-A 13

Schematic Diagram

Sheet 1 ADV-8000-A 10

Accessory Connections

Sheet 1 GM78246- 18

Decision-Maker� 6000Controller

Point-to-Point Wiring Diagram

Sheet 1 GM77989A-C 16

Sheet 2 GM77989B-C 17

Schematic Diagram

Sheet 1 ADV-8001A-C 11

Accessory Connections

Sheet 1 GM78247B-D 20

Sheet 2 GM78247C-D 22

Alternator Reconnections

Pilot-Excited Permanent

Magnet AlternatorADV-5875D-P 7

TP-6797 1/13 5Controller Identification

Controller Identification

Decision-Maker� 550 Controller

Decision-Maker� 3000 Controller

Decision-Maker� 6000 Controller

TP-6797 1/136 Controller Identification

Notes

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� 2011, 2012, 2013 by Kohler Co. All rights reserved.

TP-6797 1/13b

KOHLER CO. Kohler, Wisconsin 53044Phone 920-457-4441, Fax 920-459-1646For the nearest sales/service outlet in theUS and Canada, phone 1-800-544-2444KOHLERPower.com

Kohler Power SystemsAsia Pacific Headquarters7 Jurong Pier RoadSingapore 619159Phone (65) 6264-6422, Fax (65) 6264-6455