Eaton SL800 Classic Programming manual

Instruction Leaflet Instructions for Installation,
Page 1 Effective: January 2014 Operation and Maintenance of t e
SL800 7.2 Kilovolt, 720 Ampere Vacuum Contactor
For more information visit: www.eaton.com
IB48087
HAZARDOUS VOLTAGE
Read and understand t ese instructions before attempting any installation, operation or
maintenance of t e SL vacuum contactor. Retain t is document for future use.
T is equipment s all be installed and serviced only by qualified electrical personnel. A
qualified person is one w o is familiar wit t e construction and operation of t is equipment
and w o is aware of t e azards involved.
Instructions for Installation, Operation and Maintenance of t e
SL800 Classic 7.2 Kilovolt, 720 Amp. Vacuum contactor
Instruction Bulletin

Instruction Bulletin Instructions for Installation,
Page 2 Effective: July 2016 Operation and Maintenance of t e
SL800 Classic 7.2 Kilovolt, 720 Amp. Vacuum Contactor
For more information visit: www.eaton.com
IB48082
DESCRIPTION
T e SL800 Classic vacuum contactor is a 7.2kV, 720 amp contactor designed for starting and controlling
t ree-p ase, 50 or 60 Hz AC motors. Horsepower ratings are s own in Table I. Motor full load current s ould
not exceed t e contactor current rating.
T e s ort-circuit capacity of t e power system may exceed t e interrupting capacity of t e contactor. T e
contactor s ould ave s ort-circuit protection wit current-limiting fuses as specified for t e application.
Substitute fuses s ould not be used wit out proper aut orization by t e factory. Ratings for t e contactor are
s own in Table II.
TABLE I.
APPLICATION DATA
Range of
System
Voltage
Horsepower Ratings Transformer
Switching
Rating
(kVA)
Interrupting Capacity
(rms)
Symmetrical at Nominal Utilization
Voltage
Synchronous
Motor Induction
Motor
Fuses
(kA)
Controller
(kVA)
0.8
PF
1.0
PF
2200-2500 3000 3500 3000 250 50 200,000
3800-5000 5000 6000 5000 4500 50 350,000
6200-7200 8000 10000 8000 6000 50 570,000
TABLE II.
RATINGS
Maximum Interrupting
Current (3 Operations)
12,500A
Control Voltages
AC
110/120, 220/240 Volts
Rated Current
720 Amperes 50/60 Hz
Maximum Rated Voltage
7,200 Volts
DC
125 Volts
Making/Breaking Capacity
Control Circuit Burden (Rated Volt)
AC4-Make 8,000 Amperes UL
7,650 Amperes IEC
Closing 2600 VA
AC4-Break 6,400 Amperes UL
6,120 Amperes IEC
Holding 80 VA
Short Time Current
Auxiliary Contact Rating
30 Seconds 4,800 Amperes Voltage (Maximum) 600 Volts
1 Second 12,000 Amperes Continuous Current 10 Amperes
7.8 Milliseconds 89.2 kA Making Capacity (AC) 7200 VA
Mechanical Life
250,000 Operations Making Capacity (DC) 200 VA
Electrical Life
200,000 Operations Breaking Capacity (AC) 720 VA
BIL
60kV Breaking Capacity (DC) 200 VA
Dielectric Strength (60 Hz)
18.2 kV (1 minute)
Latch (when specified)
Closing Time
80 Milliseconds Mechanical Life 250,000 Operations
Opening Times
50 to 330 Milliseconds
Dip Switch Selectable
Refer to Table IIIb
Trip Voltages (DC) 24/48/96 Volts
Trip Voltages (AC) 110/120/220/240 Volts
(50/60 Hz)
Arcing Time
12 Milliseconds
(3/4 cycle) or less
Min Trip Voltage 80% Rated Coil Voltage
Trip Burden 24 VDC 1200 VA
Pickup Voltage
80% Rated Coil Voltage 48 & 96 VDC 400 VA
Dropout Voltage
60% Rated Coil Voltage 110 & 220 VAC 500 VA

Instruction Bulletin Instructions for Installation,
Page 3 Effective: July 2016 Operation and Maintenance of t e
SL800 Classic 7.2 Kilovolt, 720 Amp. Vacuum Contactor
For more information visit: www.eaton.com
IB48082
INSTALLATION
ALL WORK PERFORMED ON THIS CONTACTOR
SHOULD BE DONE WITH THE MAIN
DISCONNECT DEVICE OPEN AND LOCKED OUT.
AS WITH ANY CONTACTOR OF THIS VOLTAGE,
THERE IS DANGER OF ELECTROCUTION
AND/OR SEVERE BURNS.
MAKE CERTAIN THAT POWER IS OFF. CHECK
FOR VOLTAGE WITH VOLTAGE SENSOR OR A
METER OF THE APPROPRIATE RANGE.
MAKE CERTAIN THAT ALL TRANSFORMERS
ARE ISOLATED TO PREVENT FEEDBACK AND
THE RESULTANT GENERATION OF HIGH
VOLTAGE.
T e SL800 Classic contactor is a direct replacement
for SJA800A contactors in Classic Ampgard starter
assemblies. No mec anical c anges to t e starter
cell or t e contactor are required w en installing t e
SL800 Classic contactor.
T e contactor weig s about 210 pounds. It s ould
be andled gently to avoid damage to t e vacuum
bottles and factory adjustments. A orizontal plate is
provided at t e front for pulling t e contactor out of
its cell, or for pus ing it back into place.
W en a type SJA contactor is installed in a medium
voltage controller it can be moved to a draw out
position or removed from t e enclosure as follows:
1. Provide a lift truck or suitable platform to receive
t e contactor as it comes out.
2. Make sure all circuits are de-energized.
3. Remove t e t ree power circuit fuse assemblies
using t e fuse puller supplied wit t e starter.
4. Disconnect t e control plug and stow it so t at t e
cable will not be damaged. Disconnect t e two 3-
point separable terminal blocks on t e rig t front of
t e isolating switc .
5. Trip t e latc on t e left side by olding it upward
(using your foot if desired, w en unit is at floor
level).
6. W ile olding t e latc up, pull t e contactor out
ward. It will roll forward and s ould re-latc at a
detent position, partially out of t e cell. All routine
inspection and maintenance can be done wit t e
contactor in t is latc ed position.
7. To remove t e contactor completely, reverse t e
latc , pressing it downward. T e contactor can t en
be rolled out of its cell.
Once t e contactor is on t e floor, it can be moved
easily by means of a s ort lengt of 0.75-inc (19.1-
mm) pipe inserted into a bracket on t e top front of
t e rig t side s eet. T e contactor can be pus ed or
pulled like a wagon in t is manner.
To install t e SL800 Classic contactor, reverse t e
procedure.
Fig. 1 Moving t e Contactor
CONTACTOR OPERATION
T e SL contactor as its main contacts sealed inside
ceramic tubes from w ic all air as been evacuated,
i.e., t e contacts are in vacuum. T e arc simply
stops w en t e current goes t roug zero as it
alternates at line frequency. T e arc usually does
not survive beyond t e first alf cycle after t e
contacts begin to separate. T e ceramic tube wit
t e moving and stationary contacts enclosed is called
a vacuum interrupter or a vacuum bottle and t ere is
one suc bottle for eac pole of t e contactor. A
metal bellows (like a small, circular accordion) allows
t e moving contact to be closed and pulled open
from t e outside wit out letting air into t e vacuum
c amber of t e bottle.

Instruction Bulletin Instructions for Installation,
Page 4 Effective: July 2016 Operation and Maintenance of t e
SL800 Classic 7.2 Kilovolt, 720 Amp. Vacuum Contactor
For more information visit: www.eaton.com
IB48082
T e moving contacts are driven by a molded plastic
crossbar rotating wit a square steel s aft supported
by two s ielded, pre-lubricated ball bearings t at are
clamped in true alignment for long life and free
motion. Only t e end edges of t e square s aft are
rounded to fit t e bearings, so t at portions of t e
four s aft flats go t roug t e bearings for positive
indexing of t e mec anical safety interlocks.
T e contacts in an un-mounted vacuum bottle are
normally-closed, because t e outside air pressure
pus es against t e flexible bellows. For contactor
duty, t e contacts must be open w en t e operating
magnet is not energized. T erefore, t e contacts of
t e vacuum bottles must be eld apart mec anically
against t e air pressure w en used in a contactor.
In t e SL contactor, all of t e bottles are eld open
by two kickout springs on t e front of t e contactor.
T e kickout springs press against t e moving
armature and crossbar and t ereby force t e bottles
into t e open contact position. Note t at in t e open
position, t e crossbar is pulling t e moving contacts
to old t em open.
Up to an altitude of 3300 feet, t e contactor is
designed to tolerate normal variations in barometric
pressure. Special factory modifications are required if
t e contactor is to be applied at ig altitude.
Contact t e factory if t e contactor will be applied at
elevations above 3300 feet.
T e contactor is closed by energizing t e contactor
control board wit t e appropriate control voltage at
terminals 1 and 2. T e control board rectifies t e
input voltage and applies a pulse widt modulated
DC output voltage to t e coil. T e output voltage is
approximately full voltage for t e first 200
milliseconds after energization, during w ic time t e
contactor closes and seals. T e output voltage is
t en automatically reduced to approximately 15 VDC
to maintain t e contactor in t e closed position.
T e coil core is magnetized w ic rotates t e
armature s aft, armature, and crossbar. As t e
armature moves toward t e coil core, t e main
contacts close. T e crossbar continues to move an
additional distance (known as overtravel), w ic
allows for contact preload and wear. T e overtravel
distance is t e gap between t e lower bottle nut and
t e pivot plate as s own in Figure 2.
Fig. 2 Closed Contactor
W en control power is removed from t e control
board, t e magnetically eld contactor remains
closed for a preset time and t en opens. T e range
of time between t e removal of control power and
contact opening is from 50 to 330 milliseconds
depending on t e setting selected on t e control
board. T e time can be adjusted for suc factors as
fuse coordination and voltage loss ride-t roug .
Unless ot erwise specified, t e factory default
dropout setting is 130 milliseconds, or approximately
8 line cycles (60Hz). To maintain proper
coordination wit t e starter power fuses, do not use
t e 50ms setting.
A selectable dip switc is located on t e control
board for setting t e control voltage level and t e
contactor dropout time. See Figure 3. T e control
board must be removed from t e cavity in t e
contactor ousing to gain access to t e dip switc .
Table IIIa lists t e available voltage settings and
Table IIIb lists t e available dropout settings. T ese
tables are also printed on t e back of t e control
board. T e control voltage setting s ould matc t e
starter control circuit voltage.
Bottle
Nuts
Pivot
Plate
Over
travel

Instruction Bulletin Instructions for Installation,
Page 5 Effective: July 2016 Operation and Maintenance of t e
SL800 Classic 7.2 Kilovolt, 720 Amp. Vacuum Contactor
For more information visit: www.eaton.com
IB48082
Fig. 3 Coil Control Board wit Dip Switc
TABLE IIIb. CONTROL BOARD DROPOUT SETTINGS
Delay Setting SW4 SW5 SW6
50 ms On Off Off
130 ms Off On Off
250 ms On On Off
330 ms Off Off On
T e control board provides t e economizing function
for t e main coil circuit. T e L63 interlock used in
t e economizing circuit on t e SJA800A contactor is
t erefore not needed in t is design. It as been
removed from t e SL800 Classic contactor.
WIRING
Refer to Figure 4 for standard control wiring for
magnetically eld contactors. To close t e contactor,
apply power to terminals 1 and 2 on t e control
board. Power must be maintained to terminals 1 and
2 to keep t e contactor in t e closed position. T e
closing coil is connected to terminals 5 and 6.
Fig. 4 Connections for Magnetically Held Contactor
RENEWAL AND REPLACEMENT PARTS
•SL800 Classic VI Assemblies, set of t ree -
54A1307G27
•Control Board - 54A1307G24
•Contactor Coil - 54A1307G18