GE Industrial Solutions Spectra K-Frame MCCB with microEntelliGuard trip unit User Manual

GE Energy

Industrial

Solutions

GEH-701 Installation Instructions

®

Spectra

RMS SK Frame

Molded-Case Circuit Breaker

With microEntelliGuard

Introduction

Spectra® RMS molded-case circuit breakers with
microEntelliGuard
overload and short-circuit protection for electrical
equipment. Frame
SKS are available with a selection of rating plugs
to a maximum of 1200 amperes, depending on
the sensor rating.

TM

trip units provide adjustable

types

SKH, SKL, SKP, SKT, and

SK Frame circuit breakers are listed per Underwriters
Laboratories standard UL489 and Canadian Standards
Association standard CSA22.2 No.5 and meet the
requirements of the International Electrotechnical
Commission standard IEC947-21.

WARNING: Danger of electrical shock or injury. Turn
OFF the power ahead of equipment before installing
this device or removing

any

IMPORTANT: Danger d’électrocution. Couper
l’alimentation avant d’installer cet appareil ou avant de
retirer un autre appareil.

CAUTION: This product is NOT suitable for use in
equipment not
Contact the equipment manufacturer for possible
equipment modifications.

IMPORTANT: Cet appareil ne doit pas être employé
dans un equipement qui n’est pas spécialement adapte
a cet effet. Contactez le fabricant concernant les
possibles modifications à apporter à l’équipement .

1. Spectra K Frame designated
International Electrotechincal Commission certified label.

specifically

by

SKT or SKS nomenclature will not

TM

Trip Units

other device.

designed to accept it .

carry

the

SK 1200 amp Frame breaker with

Assembly

1. Unpack the circuit breaker and inspect it for any
shipping damage. Ensure that the breaker has
the proper ampere range, sensor rating, voltage
rating, and interruption rating for the application.
Since this breaker is available in a wide
configurations, compare the catalog number of your
purchased breaker with the catalog number
Table 1. Installation of an incorrect breaker could
result in misapplication, lack of
or reduction in

system

microEntelliGuard™ Trip Unit

system

functionality.

variety

coordination,

of

key

in

Instructions

SK (Max Amps)

Catalog Numbers

Trip Amps

GTP0300U0408

300

x

GTP0350U0408

350

x

GTP0400U0410

400

x

GTP0450U0612

450

x

x x GTP0500U0613

500

x x x

GTP0600U0616

600 x x

x

GTP0700U0816

700 x x x GTP0750U0820

750 x x

x

GTP0800U0820

800 x x x GTP0900U1020

900 x x GTP1000U1025

1000 x

x

GTP1100U1225

1100

x

GTP1200U1232

1200

x

Table 1. Catalog numbering system for Spectra® RMS SK Frame breakers with

SK PC 36 12 L4 R 6

Example – a breaker with catalog number
SKPC3612L4R6 has the following features:

1 SK1200 frame (SK)
2 100 kA at 480 Vac Standard UL rating (PC)
3 3 pole, 600 Vac maximum (36)
4 1200 A sensors (12)
5 Long-time, Short-time, Instantaneous and Ground

Fault functions (L4)
6 RELT – Reduced
7 Advance Metering, Modbus Communications, and

Waveform Capture (6)

2. Following the instructions supplied with the rating

plug, install the plug into the breaker
rating plugs, with their catalog numbers, are listed in
Table 2.

1. SKT and SKS catalog codes are optimized for
480Vac maximum voltage rating.

Code Description

SK SK1200
HC

LC/TC1
PC/SC1

HH
LL/TT1
PP/SS

3, 4 or

08
10
12

L3

L4

L5

L7

X
K
Z
T
R
L
M
N
V
P
S
W
X
2
6
8

Energy

50kA at
65kA at
100kA at 480
50kA at
65kA at

1

100kA at 480

6 3 Poles, 480Vac or 600Vac

800
1000
1200

LSI

LSIG

LSIA

LSI-CP

None
Neutral
ZSI

(ST/GF)

ZSI

(ST/GF/INST)
RELT
ZSI (ST/GF)
ZSI (ST/GF) + Neutral
ZSI (ST/GF) + RELT + Neutral
RELT + Neutral
ZSI (ST/GF/INST)
ZSI (ST/GF/INST) + Neutral
ZSI (ST/GF/INST) + REL T + Neutral
Meterin g
Meterin g
Meterin g (Ad v) + Modbu s + Waveform
Meterin g (Ad v) + Modbu s + Waveform

Let-Through (R)

480Vac
480Vac

Vac
480Vac
480Vac 100% Continuous UL Rating

Vac

Amps

Amps
Amps

Protection

+ RELT

Protection

+ RELT

(Basic)
(Basic)

selectivity

Standard UL

SK

L =

S =

I = Instantaneous

G =

A =

CP = Control

Protection

Protection

Protection

+ Modbus

body.

Available

and will

Rating

Frame

Long

Time

Short

Ground

Ground Fault

Time

Fault

Alarm

Power

Protection

Capture
Capture + Protective Relays

Table 2. SK Frame Rating Plugs

carry

a

micro

EntelliGuard™ trip units

Function

Frame

Designation

Interruption

Poles, Max UL

Max

Amps

Standard
Functions

Advanced
Functions

Advanced Features
Communications

Rating

Voltage

Protection

Protection

&

800 1000 1200

GEH-701 Instructions

Internal Accessory

Maximum

Number

of

Ac

cessories

Ac

cessory

Insta

llati

on

Location

Auxiliary

Switch

(SPDT or DPDT)

1

R

ight

Bell Alarm Switch

1 Left

Shunt Trip or
Undervoltage

Release

1

Left

Catalog Number

Description

Wire Type

Lug Material

TCAL81

800A Lug

Cu/Al

Tin-plated
aluminum

TCAL125

1200A Lug

TCO81A

800A Lug

Cu only

Tin-plated
copper

TCO125

1200A Lug

3. Install

any

internal accessories, following the

instructions supplied with each

accessory.

Available
accessories and their mounting locations are
listed in Table 3. Check all accessories for proper
installation and wire routing.

Verify

breaker
operation with the installed accessories. Accessory
leads can be routed along the side of the breaker
and across the back. An

auxiliary

switch is required

for the breaker status signal.

Table 3. Internal Accessories

4. Attach the terminal lugs, listed in Table 4, following the
instructions supplied with the lugs.

Table 4. Available Lugs

5. Ensure that all terminals are torqued to the proper
value, as listed in the lug kit instruction sheet . Install
the terminal covers, ensuring that
seated.

NOTE: Aluminum wire must be used with a joint
compound recommended

by

the wire manufacturer.

IMPORTANT: Si un cable en aluminum est employé,
utilisez le lubrifiant recommandé par le fabricant .

they

are firmly

WARNING: It is important that the terminal covers are
installed
operation.

correctly

to ensure proper circuit breaker

IMPORTANT: Il est important de vérifier que tous
couvercles ou caches de protection sont correctement
installés afin d’assurer le bon fonctionnement de l’appareil.

NOTE: The SKP and SKS Frames (100kA , 480V) have a
longer terminal cover for the upper (line) The top portion
of this cover must be installed after cable or bus
installation. Do not substitute the shorter lug cover.

IMPORTANT: Un caches-bornes plus long est spécifique
au bout supérieur des disjoncteurs SKP et SKS (100kA ,
480V). Le haute de ce cachebarnes doit être monté après

d’installer Ie câble ou Ie bus. Ne substituez pas un cache-
bornes plus court .

6.

Finally,
required for the breaker to function
the instructions supplied with each component .
The following is a list of available associated
components:

• Terminal board connector

• Neutral current sensor connector

• Control power connector

• Extension cable

• Control power module (control power transformer

• Voltage conditioners (potential transformers may

• Voltage module

• Neutral current sensor

Mounting

All Spectra® RMS circuit breakers are suitable for
reverse feed and no line or load markings.
Incoming power cables or busbars may be
connected to either the upper or lower terminals
as required by the application

connect all associated components that are

properly,

may

be required)

be required)

using