Cutler Hammer, Div of Eaton Corp DK, KDB, KD, HKD, KDC Installation Guide

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InstructionLeaflet IL 29C104E

Effective February 2015

Supersedes IL 29C104D Dated 02/12

Installation Instructions for DK, KDB, KD, HKD, KDC, KW, HKW, KWC, CKD, CHKD Circuit Breakers and Molded Case Switches

Contents

Description

Page

Introduction . . . .. . . . . . . .. . . . . . . .. . . . . . . .. .. . .2

Installation . . . . .. . . . . . . .. . . . . . . .. . . . . . . .. . . . 3

Replacement of Existing Eaton Circuit Breakers

Types DA, JA, KA, HKA, LB, LBB, HLB . . 6

ManualOperationandThermal Magnetic Trip

Unit Adjustment . . . . . . . . . . . . . . . . . .7

Inspection and Field Testing . . . . . . . .. . . . . . . ... 8

Effective February 2015

WARNING

DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON EQUIPMENT WHILE IT IS ENERGIZED. DEATH, SEVERE PERSONAL INJURY, OR SUBSTANTIAL PROPERTY DAMAGE CAN RESULT FROM CONTACT WITH ENERGIZED EQUIPMENT. ALWAYS VERIFY THAT NO VOLTAGE IS PRESENT BEFORE PROCEEDING WITH THE TASK, AND ALWAYS FOLLOW GENERALLY ACCEPTED SAFETY PROCEDURES.

EATON IS NOT LIABLE FOR THE MISAPPLICATION OR MISINSTALLATION OF ITS PRODUCTS.

The user is cautioned to observe all recommendations, warnings, and cautions relating to the safety of personnel and equipment as well as all general and local health and safety laws, codes, and procedures.

Figure 1-1 K-Frame Model D Series C Circuit Breaker Frame with KT Trip Unit Installed

Installation Instructions for DK, KDB, KD, HKD, KDC, KW, HKW, KWC, CKD, CHKD Circuit Breakers and Molded Case Switches

The recommendations and information contained herein are based on Eaton experience and judgment, but should not be considered to be all-inclusive or covering every application or circumstance which may arise. If any questions arise, contact Eaton for further information or instructions.

1. INTRODUCTION

General Information

The K-frame Series C circuit breaker (Figure 1-1) types KD, HKD, and KDC are 600 Vac maximum rated

devices with interchangeable thermal-magnetic or electronic (Seltronic) trip units rated 400A maximum continuous current. Circuit breaker types KW, HKW, and KWC

are 660 Vac maximum rated devices using interchangeable adjustable thermal/adjustable magnetic or electronic trip units rated up to 400A continuous current. The type KDB noninterchangeable trip circuit breaker is rated 600 Vac maximum with a maximum continuous current rating of 400A. The type DK 240 Vac maximum circuit breaker is also a noninterchangeable trip device with trip unit ratings from 250A to 400A. Refer to Table 4-1 on page 9 for all available trip unit ratings. Model D circuit breakers are listed in accordance with Underwriters Laboratories, Inc. Standard UL489 and satisfy the (P1) requirements of the International Electrotechnical Commission Recommendations No. IEC 157-1. Model

W circuit breakers satisfy the requirements of IEC C947- 2. Molded case switches are listed in accordance with UL 489.

100 Percent Rated K-Frame Circuit Breakers

CKD and CHKD circuit breakers are suitable for continuous operation at 100 percent of the frame rating if used with an 90°C insulated wire and AL9CU terminals in an enclosure which measures at least 24” high x 15” wide x 6” deep. Ventilation is not required in an enclosure having these minimum dimensions. CKD and CHKD 100 percent rated circuit breakers use electronic trip units only.

ers. Instructions are also provided for replacement of existing Eaton circuit breaker types DA, LB, LBB, HLB, JA, KA, and HKA. For this publication, the term circuit breaker shall also include the molded case switch.

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EATON CORPORATION

Cutler Hammer, Div of Eaton Corp DK, KDB, KD, HKD, KDC Installation Guide

Installation Instructions for DK, KDB, KD, HKD, KDC, KW, HKW, KWC, CKD, CHKD Circuit Breaker and Molded Case Switches

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flat Head, Thread

Pan Head Screws

Forming Screws

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 - Pole

4 - Pole

No. 8 x 1.63 in, Flat - Head

6

 

 

3

.190 - 32 x 3.125 in, Pan - Head

2

 

 

7

Figure 2-1 Cover Mounting Hardware

Effective February 2015

Terminal Cover

Dovetails

Mounting

Slots

e installation procedure consistsof

,

Figure 2-3 Terminal Cover Installation

1

3P

3P 1

2

4P

4P 2

 

2

2

 

 

1

 

1

 

2

3

3P 1

4P

2

3P

1

 

 

1Screw, No. 8x 1.63 Inch, Flat Head, Cross-Recessed, Thread Forming.

2Screw .190-32 x 3.125 Inch Pan Head, Cross-Recessed.

Note: Hatched lines show additional pole and screw for 4-pole circuit breaker.

Figure 2-2 Cover Screw Installation Positions

2. INSTALLATION

The installation procedure consist of inspecting the circuit breaker and, as applicable, installing the trip unit and rating plug, accessories, interphase barriers, and terminals; mounting the circuit breaker; connecting the line and load conductors; torquing terminals; and attaching terminal shields. Circuit breaker frames, trip units, rating plugs, accesories, mounting hardware, and unmounted terminals may be supplied in separate packages. To install the circuit breaker, perform the following steps.

NOTICE

If circuit breaker is replacing a DA, JA, KA, HKA, LB, LBB, or HLB circuit breaker, refer to section 3 of

DK and KDB circuit breakers are factory sealed for reverse feed applications under UL489. UL requires that internal accessories be installed at the factory in these types of circuit breakers.

NOTICE

If required, internal accessory installation in any type of circuit breaker should be done before the

EATONON CORPORATION

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