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SAFETY INSTRUCTIONS

Siemens Energy & Automation, Inc.
Bellefontaine, Ohio 43311 U.S.A.

Installation Instructions

Hazardous voltage.
Will cause death or severe
injury.

Turn off and lock out all power
supplying this device before
removing cover(s) or device and
while cover(s) are removed.

Replace all covers and shields
before power supplying this device
is turned on.

Item:

Solid State Molded Case Circuit Breaker
Sentron Series Sensitrip III

I-T-E JD Frame Types SJD6(-A),
SHJD6(-A), SCJD6(-A). LD Frame Types
SLD6(-A), SHLD6(-A) and SCLD6(-A).

Page

1 of 5

Pc. No. 

761411A03

NOTE: This instruction outlines the recommended
installation procedure.

INTRODUCTION

The JD and LD Frame circuit breaker line includes
types SJD6(-A), SHJD6(-A), SCJD6(-A), SLD6(-A),
SHLD6(-A) and SCLD6(-A) circuit breaker types.
These circuit breakers are rated for operating volt-
ages up to 600 VAC, 50/60 Hz.

INSTALLATION

JD and LD Frame circuit breakers are for use in
individual enclosures, panelboards, switchboards or
other approved equipment.

The installation procedure consists of inspecting,
attaching required accessories, mounting the cir-
cuit breaker and connecting and torquing the line
and load wire connectors.

Mounting hardware and unmounted wire connec-
tors (where required) are available as separate cata-
log items.

A. Turn off and lock out all power before installing

or servicing this circuit breaker.

B. Make sure that the device is suitable for the in-

stallation by comparing nameplate ratings with
system requirements.  Inspect the circuit breaker
for completeness and check for any damage be-
fore mounting.

C. Device must be in “TRIPPED” or “OFF” position

prior to mounting.  See Fig. 4.

Fig. 1

D. To mount the device perform the following steps:

1. For individual enclosures, panelboards and

switchboards manufactured by Siemens En-
ergy & Automation, Inc., follow the instructions
provided with this equipment.

2. For those applications where mounting is on

a flat surface of the customers equipment, drill
and top mounting bolt holes according to the
drilling plan in Fig. 2.  For escutcheon cut out
plans refer to Fig. 3.

3. If device contains internal accessories, make

sure terminals can be connected when the cir-
cuit breaker is mounted.

Summary of Contents for Sensitrip III Sentron Series

Page 1: ...e installation procedure consists of inspecting attaching required accessories mounting the cir cuit breaker and connecting and torquing the line and load wire connectors Mounting hardware and unmounted wire connec tors where required are available as separate cata log items A Turn off and lock out all power before installing or servicing this circuit breaker B Make sure that the device is suitabl...

Page 2: ...ory terminals should be connected 7 After the circuit breaker is installed check all mounting hardware for secureness Check wire connectors for correct torque require ments Torque values for line and load con nectors are provided on the circuit breaker nameplate Fig 3 Fig 2 9 75 4 40 6 86 OF HANDLE ESCUTCHEON OF HANDLE ESCUTCHEON DRILL ANDTAP 1 4 20 HOLE 4 OR 6 PLS REQUIRED FOR SCJD6 SCLD6 ONL Y O...

Page 3: ...tches that must be properly set to mechanical detent click stop positions An improper switch setting will cause the trip unit to default as a fail safe condition to the lowest permissive setting and consequently may result in unintentional or nuisance tripping Continuous Current lr and LongTime Delay All models have a Continuous Current and Long Time Delay adjustment This single knob adjusts the C...

Page 4: ...ent to set the Ground Fault Pickup current lg as a percentage of the Maximum Continuous Cur rent rating ln The pickup has a built in time delay Three time delays are available of 0 1 0 2 or 0 4 seconds These are selected by using the appro priate area of the setting Below 50 Maximum Continuous Current rating ln the pickup delay has an I2 t slope See Figure 8 The ground fault option has two modes o...

Page 5: ...n operating in the GROUND RE TURN mode on any system The sensors listed below must be used for these applications The sen sor catalog number must be matched to the circuit breaker Maximum Continuous Current rating ln as shown in the table Please note that sensors used with other breaker types cannot be used with the SJD SLD circuit breakers Installation instructions are included with the sensors T...

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