Class 8502 Type S magnetic contactors are used
to switch heating loads, capacitors, transformers,
and electric motors where overload protection is
separately provided. Class 8502 contactors are
available in NEMA Sizes 00-7. Type S contactors
are designed for operation at 600 Volts, AC 50-60
Hertz.
Holding Circuit Contact
A normally open holding circuit contact for three
wire control is provided on all contactors as
standard. Siz es 00-2 contactors use a Class 9999
SX11 auxiliary contact as the holding circuit
contact. Sizes 3-7 contactors use a Class 9999
SX6 auxiliary contact as the holding circuit
contact. See Class 9999 for the holding circuit
contact electrical ratings. On Size 00-1 single
phase contactors, a power pole is used as the
holding circuit contact and therefore has the same
rating as the power contacts.
Enclosures
Class 8502 magnetic contactors are available in
the following enclosures:
• NEMA Type 1 General Purpose
• NEMA Type 4 & 4X Watertight and Dusttight
Stainless Steel
• NEMA Type 4X Watertight, Dusttight, and
Corrosion Resistant Glass — Polyester
• NEMA Type 7 & 9 Bolted and Spin-Top for
Hazardous Locations
• NEMA Type 12 Dusttight and Driptight for
Industrial Use
The NEMA Type 4 & 4X stainless steel enclosure
(Sizes 0-5) has a brushed finish. For an
electropolished finish, specify Form G16 and add
15% to the price of the standard device.
Also, NEMA Type 12 devices are available UL
Listed for use in Class II, Division 2, Group G and
Class III, Divisions 1 and 2 locations. Request
Form G21, no additional charge.
Separate enclosures are available, see Class
9991.
AC MAGNETIC STARTERS
CLASS 8536
General Information
Class 8536 Type S magnetic starters are used for
full voltage starting and stopping AC squirrel cage
motors. Motor overload protection is provided by
melting alloy type thermal overload relays. Class
8536 starters are available in NEMA Sizes 00-7.
Type S starters are designed f or operation at 600
Volts AC, 50-60 Hertz.
Holding Circuit Contact
A normally open holding circuit contact for three
wire control is provided on all contactors as
standard. Siz es 00-2 contactors use a Class 9999
SX11 auxiliary contact as the holding circuit
contact. Sizes 3-7 contactors use a Class 9999
SX6 auxiliary contact as the holding circuit
contact. See Class 9999 for the holding circuit
contact electrical ratings.
Overload Relays with Melting Alloys
Class 8536 Type S Sizes 00-6 starters are
provided with a melting alloy thermal overload
relay as standard. Interchangeable thermal units
are available in standard trip (Class 20) Sizes
00-6, quick trip (Class 10) Sizes 00-4, and slow
trip (Class 30) Sizes 00-3. Single-phase starters
use one thermal unit, 3-phase starters use three
thermal units.
Class 8536 Size 7 starters are provided with solid
state Motor Logic which has selectable trip
Class10/20, Ground fault detection, and
Communication capabilities for future
enhancement. The solid state overload relay is
ambient insensitive and features phase loss,
phase unbalance and over-current protection.
MOTOR LOGIC™ Solid State Overload Relay
(SSOLR)
Solid state overload relays are a vailab le f or Siz es
00 – 7 starters. These ambient insensitive
overload relays provide phase loss protection,
phase unbalance protection and a LED power
indicator. For additional inf ormation, see the Class
9065 catalog section. To order Type S starters
with solid state overload relays, see Factory
Modification (FORMS).
Bimetallic overload relays are also available for
Sizes 0-6. Ambient Compensated and Noncompensated versions are supplied with manual
and automatic reset, trip current adjustment, and
an alarm contact on Sizes 0-2. For additional
information, see the Class 9065 catalog section.
To order Type S starters with bimetallic overload
relays, see Factory Modifications (FORMS).
Enclosures
Class 8536 magnetic starters are available in the
following enclosures.
• NEMA Type 1 General Purpose Enclosure
• NEMA Type 3R Rainproof, Sleet Resistant for
Outdoor Use
• NEMA Type 4 & 4X Watertight and Dusttight
• NEMA Type 4X Watertight, Dusttight, and
Corrosion Resistant Glass – Polyester
• NEMA Type 7 & 9 Bolted and Spin-Top for
Hazardous Locations
• NEMA Type 9 Bolted for Hazardous Locations
• NEMA Type 12 Dusttight and Driptight for
Industrial Use
The NEMA Type 4 & 4X stainless steel enclosure
(Sizes 0-5) has a brushed finish. For an
electropolished finish, specify Form G16 and add
15% to the price of the standard device. Sizes 6 &
7 are painted sheet steel and are rated NEMA 4
ONLY.
Also NEMA Type 12 devices are available UL
Listed for use in Class II, Division 2, Group G and
Class III, Divisions 1 and 2 locations. Specify
Form G21, no additional charge.
Coil V oltages
AC coils are available for application on 50-60
Hertz. NEMA Sizes 00-5 are supplied with coils
that are designed to operate satisfactorily on line
voltages of 85% – 110% of rated voltage. NEMA
Size 6 and 7 contactors are supplied with a DC
coil operated by a solid state rectifier circuit that is
powered by an AC source.
Please note that
added to the Type designations in order to
improve customer service. It is necessary to
include the Voltage Code when ordering
contactors and starters. Also , 120 Volt Polyphase
contactors and starters will be wired for separate
control.
Auxiliary Contacts
Additional auxiliary contacts may be added to
Type S contactors. See Page 15 for maximum
number of auxiliary units and Form designations
for factory installed auxiliary contacts.
Type S Accessories
Additional accessories such as power poles,
pneumatic timer attachments, and cover mounted
control stations are available as factory or field
modifications.
3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz
Continuous
Current
Ratings
Size 6 and 7 are painted sheet steel rated NEMA Type 4 only.
120 Volt Polyphase contactors are wired for separate control.
Coil voltage code must be specified to order this product. Refer to standard voltage codes listed below and insert as shown in How to Order.
Type SC02
Size 1, 3-Pole Contactor
NEMA
Size
009
018
127
245
390
4135
5270
6540
7810
Coil V oltage Codes
NEMA Type 4 & 4X
Watertight, Dusttight
Brushed Stainless
Steel Enclosure
(Size 0-5)
Motor VoltsMax. HP
t
Coil Volta ge
Open Type
NEMA Type 1
General
Purpose
Enclosure
TypeTypeType
Separate Controlj
2001
2301
4602480SAO12V06SAG12V06
5752600SAO12V07SAG12V07
Separate Controlj
2003208SBO2V08SBG2V08SBW12V08
2303240SBO2V03SBG2V03SBW12V03
4605480SBO2V06SBG2V06SBW12V06
5755600SBO2V07SBG2V07SBW12V07
Separate Control
2007
2307
46010480SCO2V06SCG2V06SCW12V06
57510600SCO2V07SCG2V07SCW12V07
Separate Controlj
20010208SDO2V08SDG2V08SDW12V08
23015240SDO2V03SDG2V03SDW12V03
46025480SDO2V06SDG2V06SDW12V06
57525600SDO2V07SDG2V07SDW12V07
Separate Controlj
20025208SEO2V08SEG2V08SEW12V08
23030240SEO2V03SEG2V03SEW12V03
46050480SEO2V06SEG2V06SEW12V06
57550600SEO2V07SEG2V07SEW12V07
Separate Controlj
20040208SFO2V08SFG2V08SFW12V08
23050240SFO2V03SFG2V03SFW12V03
460100480SFO2V06SFG2V06SFW12V06
575100600SFO2V07SFG2V07SFW12V07
Separate Controlj
20075208SGO2V08SGG2V08SGW12V08
230100240SGO2V03SGG2V03SGW12V03
460200480SGO2V06SGG2V06SGW12V06
575200600SGO2V07SGG2V07SGW12V07
Separate Controlj
200150208SHO2V08SHG2V08SHW12V08
230200240SHO2V03SHG2V03SHW12V03
460400480SHO2V06SHG2V06SHW12V06
575400600SHO2V07SHG2V07SHW12V07
Separate Controlj
200. . .208SJO2V08SJG2V08SJW12V08
230300240SJO2V03SJG2V03SJW12V03
460600480SJO2V06SJG2V06SJW12V06
575600600SJO2V07SJG2V07SJW12V07
Separate Enclosures (Class 9991)...........Refer to Catalog 9999CT9701
Replacement Parts (Class 9998)..............Refer to Catalog 9999CT9701
Type S Accessories (Class 9999).............Refer to Catalog 9999CT9701
5/98
3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz
j
c
t
24q
q
Full Voltage Contactors — NEMA
Selection – Class 8502
NEMA Type 4X
Watertight, Dusttight,
Corrosion-Resistant
NEMA
Size
Continuous
Current
Ratings
Motor
Volts
Max.
HP
t
Coil
Voltage
Glass-Polyester
Enclosure
Type
Separate Controlj120
009
018
127
245
390
4135
5270
6540
7810
120 Volt Polyphase contactors are wired for separate control.
Limited to one Pilot Light and a Selector Switch or Start-Stop Push Button.
Coil voltage code must be specified to order this product. Ref er to standard coil voltage codes listed in selection tab le abov e or additional standard voltage codes belo w and insert as shown
in the HOW TO ORDER block.
2001
2301
4602480
5752600
Separate Controlj120SBW22V02SSBT2V02SSBT42V02SSBR2V02SSBA2V02S
2003208SBW22V08SBT2V08SBT42V08SBR2V08SBA2V08
2303240SBW22V03SBT2V03SBT42V03SBR2V03SBA2V03
4605480SBW22V06SBT2V06SBT42V06SBR2V06SBA2V06
5755600SBW22V07SBT2V07SBT42V07SBR2V07SBA2V07
Separate Controlj120SCW22V02SSCT2V02SSCT42V02SSCR2V02SSCA2V02S
2007
2307
46010480SCW22V06SCT2V06SCT42V06SCR2V06SCA2V06
57510600SCW22V07SCT2V07SCT42V07SCR2V07SCA2V07
Separate Controlj120SDW22V02SSDT2V02SSDT42V02SSDR2V02SSDA2V02S
20010208SDW22V08SDT2V08SDT42V08SDR2V08SDA2V08
23015240SDW22V03SDT2V03SDT42V03SDR2V03SDA2V03
46025480SDW22V06SDT2V06SDT42V06SDR2V06SDA2V06
57525600SDW22V07SDT2V07SDT42V07SDR2V07SDA2V07
Separate Controlj120SEW22V02S
20025208SEW22V08SET42V08SER2V08SEA2V08
23030240SEW22V03SET42V03SER2V03SEA2V03
46050480SEW22V06SET42V06SER2V06SEA2V06
57550600SEW22V07SET42V07SER2V07SEA2V07
Separate Controlj120SFW22V02S
20040208SFW22V08SFT42V08SFR2V08SFA2V08
23050240SFW22V03SFT42V03SFR2V03SFA2V03
460100480SFW22V06SFT42V06SFR2V06SFA2V06
575100600SFW22V07SFT42V07SFR2V07SFA2V07
Separate Controlj120
20075208SGR2V08SGA2V08
230100240SGR2V03SGA2V03
460200480SGR2V06SGA2V06
575200600SGR2V07SGA2V07
Separate Controlj120
200150208SHA2V08
230200240SHA2V03
460400480SHA2V06
575400600SHA2V07
Separate Controlj
200—208SJA2V08
230300240SJA2V03
460600480SJA2V06
575600600SJA2V07
Coil V oltage Codes
1
⁄
208
2
1
⁄
240
2
1
⁄
208SCW22V08SCT2V08SCT42V08SCR2V08SCA2V08
2
1
⁄
240SCW22V03SCT2V03SCT42V03SCR2V03SCA2V03
2
Use Size 0Use Size 0Use Size 0Use Size 0
. . .. . .. . .
. . .. . .. . .. . .
. . .. . .. . .. . .
Explosion Proof Units
NEMA Type 7 & 9
Hazardous Locations
Class I, Groups C & D
Class II, Groups E, F, & G
Bolted Type
Cast Ironc
. . .
. . .
Cast
Aluminum
SET42V02SSER2V02SSEA2V02S
SFT42V02SSFR2V02SSFA2V02S
NEMA Type 12
Dusttight & Driptight
Industrial Use Enclosure
Size 6 and 7 are painted sheet steel rated NEMA Type 4 only.
120 Volt Polyphase contactors are wired for separate control.
Coil voltage code must be specified to order this product. Refer to standard voltage codes listed in selection table above or additional standard
voltage codes and insert as shown in the HOW TO ORDER block on Page 5.
t
NEMA Type 4 & 4X
Watertight, Dusttight
Brushed Stainless
Steel Enclosure
(Size 0-5)
120 Volt Polyphase contactors are wired for separate control.
Limited to one Pilot Light and a Selector Switch or Start-Stop Push Button.
Coil voltage code must be specified to order this product. Refer to standard coil voltage codes listed in selection table above or additional standard voltage codes and insert as shown in
the HOW TO ORDER block on Page 5.
3-Pole Polyphase—600 Volt AC Max. 50/60 Hz—Three Thermal Units Required
Continuous
NEMA
Current
Size
Ratings
009
018
127
245
390
4135
5270
6540
7810
f
Size 6 and 7 are rated NEMA Type 4 only.
j
120 Volt Polyphase starters are wired for separate control.
t
Coil voltage code must be specified to order this product. Ref er to standard coil voltage codes listed in selection table above or additional standard
voltage codes below and insert as shown in the HOW TO ORDER block.
Coil V oltage Codes
Motor
Volts
Max.
HP
t
Coil
Voltage
Open
Type
NEMA Type 1
General
Purpose
Enclosure
NEMA Type 4 & 4X
Watertight, Dusttight
Brushed Stainless
Steel Enclosure
(Size 0-5)
f
NEMA Type 4X
Watertight, Dusttight,
Corrosion-Resistant
Glass-Polyester
Enclosure
TypeTypeTypeType
Separate Controlj120SAO12V02S SAG12V02S
2001
2301
4602480SAO12V06SAG12V06
5752600SAO12V07SAG12V07
Separate Controlj120SBO2V02SSBG2V02SSBW12V02SSBW22V02S
2003208SBO2V08SBG2V08SBW12V08SBW22V08
2303240SBO2V03SBG2V03SBW12V03SBW22V03
4605480SBO2V06SBG2V06SBW12V06SBW22V06
5755600SBO2V07SBG2V07SBW12V07SBW22V07
Separate Controlj120SCO3V02SSCG3V02SSCW13V02SSCW23V02S
2007
2307
46010480SCO3V06SCG3V06SCW13V06SCW23V06
57510600SCO3V07SCG3V07SCW13V07SCW23V07
Separate Controlj120SDO1V02SSDG1V02SSDW11V02SSDW21V02S
20010208SDO1V08SDG1V08SDW11V08SDW21V08
23015240SDO1V03SDG1V03SDW11V03SDW21V03
46025480SDO1V06SDG1V06SDW11V06SDW21V06
57525600SDO1V07SDG1V07SDW11V07SDW21V07
Separate Controlj120SEO1V02SSEG1V02SSEW11V02SSEW21V02S
20025208SEO1V08SEG1V08SEW11V08SEW21V08
23030240SEO1V03SEG1V03SEW11V03SEW21V03
46050480SEO1V06SEG1V06SEW11V06SEW21V06
57550600SEO1V07SEG1V07SEW11V07SEW21V07
Separate Controlj120SFO1V02SSFG1V02SSFW11V02SSFW21V02S
20040208SFO1V08SFG1V08SFW11V08SFW21V08
23050240SFO1V03SFG1V03SFW11V03SFW21V03
460100480SFO1V06SFG1V06SFW11V06SFW21V06
575100600SFO1V07SFG1V07SFW11V07SFW21V07
Separate Controlj120SGO1V02SSGG1V02SSGW11V02S
20075208SGO1V08SGG1V08SGW11V08
230100240SGO1V03SGG1V03SGW11V03
460200480SGO1V06SGG1V06SGW11V06
575200600SGO1V07SGG1V07SGW11V07
Separate Controlj120SHO2V02SSHG2V02SSHW2V02S
200150208SHO2V08SHG2V08SHW2V08
230200240SHO2V03SHG2V03SHW2V03
460400480SHO2V06SHG2V06SHW2V06
575400600SHO2V07SHG2V07SHW2V07
Separate Controlj120SJO2V02SSJG2V02SSJW2V02S
200—208SJO2V08SJG2V08SJW2V08
230300240SJO2V03SJG2V03SJW2V03
460600480SJO2V06SJG2V06SJW2V06
575600600SJO2V07SJG2V07SJW2V07
Factory Modifications (FORMS)
Application Data
Dimensions
Separate Enclosures (Class 9991)
Replacement Parts (Class 9998)
Type S Accessories (Class 9999)
3-Pole Polyphase — 600 Volts AC Maximum — 50-60 Hertz—Three Thermal Units Required
NEMA Type 7 & 9
Hazardous Locations
NEMA
Size
009
018
127
245
390
4135
5270
6540
7810
kFor NEMA Type 3R enclosed devices (Sizes 0-4 only), change “A” in Type designation to “H”, no additional charge. Consult Factory for restrictions on available Forms in NEMA Type 3R
j120 Volt Polyphase starters are wired for separate control.
cLimited to one Pilot Light and a Selector Switch or Start-Stop Push Button.
tCoil voltage code must be specified to order this product. Refer to standard coil voltage codes listed in selection table above or additional standard v oltage codes in tab le belo w and insert
Continuous
Current
Ratings
enclosures.
as shown in the HOW TO ORDER block.
Motor
Volts
Separate Controlj120
20011⁄
23011⁄
4602480
5752600
Separate Control
2003208SBT2V08SBT42V08SBR2V08SBE2V08SBA2V08
2303240SBT2V03SBT42V03SBR2V03SBE2V03SBA2V03
4605480SBT2V06SBT42V06SBR2V06SBE2V06SBA2V06
5755600SBT2V07SBT42V07SBR2V07SBE2V07SBA2V07
Separate Controlj120SCT3V02SSCT43V02SSCR3V02SSCE3V02SSCA3V02S
2007
23071⁄
46010480SCT3V06SCT43V06SCR3V06SCE3V06SCA3V06
57510600SCT3V07SCT43V07SCR3V07SCE3V07SCA3V07
Separate Controlj120SDT1V02SSDT41V02SSDR1V02SSDE1V02SSDA1V02S
20010208SDT1V08SDT41V08SDR1V08SDE1V08SDA1V08
23015240SDT1V03SDT41V03SDR1V03SDE1V03SDA1V03
46025480SDT1V06SDT41V06SDR1V06SDE1V06SDA1V06
57525600SDT1V07SDT41V07SDR1V07SDE1V07SDA1V07
Separate Controlj120
20025208SET43V08SER3V08SEE1V08SEA1V08
23030240SET43V03SER3V03SEE1V03SEA1V03
46050480SET43V06SER3V06SEE1V06SEA1V06
57550600SET43V07SER3V07SEE1V07SEA1V07
Separate Controlj120
20040208SFT41V08SFR1V08SFE1V08SFA1V08
23050240SFT41V03SFR1V03SFE1V03SFA1V03
460100480SFT41V06SFR1V06SFE1V06SFA1V06
575100600SFT41V07SFR1V07SFE1V07SFA1V07
Separate Controlj120
20075208SGT41V08SGR1V08SGE1V08SGA1V08
230100240SGT41V03SGR1V03SGE1V03SGA1V03
460200480SGT41V06SGR1V06SGE1V06SGA1V06
575200600SGT41V07SGR1V07SGE1V07SGA1V07
Separate Controlj120
200150208SHA2V08
230200240SHA2V03
460400480SHA2V06
575400600SHA2V07
Separate Controlj120
200—208SJA2V08
230300240SJA2V03
460600480SJA2V06
575600600SJA2V07
Max.
HP
t
Coil
Voltage
208
2
240
2
j120SBT2V02SSBT42V02SSBR2V02SSBE2V02SSBA2V02S
1
⁄
208SCT3V08SCT43V08SCR3V08SCE3V08SCA3V08
2
240SCT3V03SCT43V03SCR3V03SCE3V03SCA3V03
2
Class I, Groups C & D
Class II, Class E, F, & G
Bolted Type
Cast Iron
USE Size 0USE Size 0USE Size 0Use Size 0
. . .
. . .
. . .
. . .. . .. . .. . .
. . .. . .. . .. . .
Cast
c
Aluminum
SET43V02SSER3V02SSEE1V02SSEA1V02S
SFT41V02SSFR1V02SSFE1V02SSFA1V02S
SGT41V02SSGR1V02SSGE1V02SSGA1V02S
SPIN TOP
Type
NEMA Type 9
Hazardous Locations
Class II, Groups E, F, & G
®
TypeType
NEMA Type 12/3R
Dusttight & Driptight
Industrial Use
Enclosure
2-Pole Single Phase — 600 Volts A C Maxim um — 50-60 Hertz Thermal Units —
One Thermal Unit Required
Continuous
NEMA
Current
Size
Ratings
009
018
127
1P36
245
4-Pole, 2-Phase — 600 Volts AC Maximum — 50-60 Hertz — Two Thermal Units Required
Continuous
NEMA
Current
Size
Ratings
018
127
245
390
4135
j120 Volt Polyphase starters are wired for separate control.
tCoil voltage code must be specified to order this product. Refer to standard coil voltage codes listed in selection table above or additional standard
voltage codes below and insert as shown in the HOW TO ORDER block.
Class I, Groups C & D
Class II, Groups E, F, & G
Bolted Type
Cast Ironc
USE Size 0USE Size 0USE Size 0Use Size 0
Cast
Aluminum
SPIN TOP
Type
NEMA Type 9
Hazardous Locations
Class II, Groups E, F, & G
®
TypeType
4-Pole 2-Phase — 600 Volts AC Maximum — 50-60 Hertz —Two Thermal Units Required
NEMA Type 7 & 9
Hazardous Locations
NEMA
Size
018
127
245
390
4135
j120 Volt Polyphase contactors are wired for separate control.
fFor NEMA Type 3R enclosed devices (2-Pole only), change ‘A’ in Type designation to ‘H’, no additional charge.
cLimited to one Pilot Light and Selector Switch or Start-Stop Push Button.
tCoil voltage code must be specified to order this product. Refer to standard coil v oltage codes listed in selection table abo ve or additional standard v oltage codes below and insert as shown
Continuous
Current
Ratings
in the HOW TO ORDER block.
Motor
Volts
Separate Controlj120SBT3V02S
2003208SBT3V08SBR3V08SBA3V08
2303240SBT3V03SBR3V03SBA3V03
4605480SBT3V06SBR3V06SBA3V06
5755600SBT3V07SBR3V07SBA3V07
Separate Controlj120SCT4V02S
2007
2307
46010480SCT4V06SCR4V06SCA4V06
57510600SCT4V07SCR4V07SCA4V07
Separate Controlj120SDT2V02S
20010208SDT2V08SDR2V08SDA2V08
23015240SDT2V03SDR2V03SDA2V03
46025480SDT2V06SDR2V06SDA2V06
57525600SDT2V07SDR2V07SDA2V07
Separate Controlj120
20025208SER2V08SEA2V08
23030240SER2V03SEA2V03
46050480SER2V06SEA2V06
57550600SER2V07SEA2V07
Separate Controlj120
20040208SFA2V08
23050240SFA2V03
460100480SFA2V06
575100600SFA2V07
Max.
HP
t
Coil
Voltage
1
⁄
208SCT4V08SCR4V08SCA4V08
2
1
⁄
240SCT4V03SCR4V03SCA4V03
2
Class I, Groups C & D
Class II, Groups E, F, & G
Bolted Type
Cast Ironc
Consult Local
Square D
Field Office
Consult Local
Square D
Field Office
Cast
Aluminum
Consult Local
Square D
Field Office
Consult Local
Square D
Field Office
Consult Local
Square D
Field Office
Consult Local
Square D
Field Office
Consult Local
Square D
Field Office
SPIN TOP
Type
SBR3V02S
SCR4V02S
SDR2V02S
SER2V02S
. . .. . .
NEMA Type 9
Hazardous Locations
Class II, Groups E, F, & G
Types SB-SD with Auxiliary Load Terminals – Class 8536
3-Pole Polyphase — Three Thermal Units Required
It is sometimes desirable to use the capacitors in motor branch circuits to improv e power factor . The Size
0-2 Type SB-SD starters listed included three auxiliary terminals to allow easy connection of power
factor correction capacitors. When capacitors are connected using these terminals, no adjustment on
the selection of thermal units is necessary.
These terminals are also available as a kit Class 9999 Type PFL for Type S NEMA Size 0, 1 and 2
Starters with Motor Logic overload relays. These terminals are av ailable for connection of power factor
(PF) correction capacitors. These kits are sold separately and are not factory installed.
NEMA SizeMotor VoltsMaximum HPCoil VoltageOpen Type
Separate Controlj120SBTO2V02S
0
1
2
j120 Volt polyphase starters are wired for separate control.
Extra Capacity Single Phase Starters
2-Pole Single Phase — 250 Volts AC Maximum — 50-60 Hertz
Thermal Units — Devices require 1 thermal unit. Standard trip.
tCoil voltage code must be specified to order this product. Refer to standard coil voltage codes listed in selection tables above or additional standard voltage codes below and insert as
Tables and footnotes are taken from NEMA Standards.
jRatings shown are for applications requiring repeated interruptions of stalled motor current or repeated closing of high transient currents encountered in rapid motor reversal, in volving more
than five openings or closings per minute and more than ten in a ten-minute period, such as plug-stop, plug-reverse or jogging duty. Ratings apply to single speed and multi-speed
controllers.
tPer NEMA Standards paragraph ICS 2-321.20, the service-limit current represents the maximum ms current, in amperes, which the controller ma y be expected to carry for protracted periods
in normal service. At service-limit current ratings, temperature rises may exceed those obtained by testing the controller at its continuous current rating. The ultimate trip current of overcurrent (overload) relays or other motor protective devices shall not exceed the service-limit current ratings of the controller.
a FLUORESCENT LAMP LOADS – 300 VOLTS AND LESS – The characteristics of fluorescent lamps are such that it is not necessary to derate Class 8502 contactors below their normal
continuous current rating. Class 8903 contactors may also be used with fluorescent lamp loads . For controlling tungsten and infrared lamp loads, and resistance heating loads, Class 8903
ac lighting contactors are recommended. These contactors are specifically designed for such loads and are applied at their full rating as listed in the Class 8903 Section.
uRatings apply to contactors which are employed to switch the load at the utilization voltage of the heat producing element with a duty which requires continuous operation of not more than
five openings per minute. Class 8903 Types L and S lighting contactors are rated for resistance heating loads.
kWhen discharged, a capacitor has essentially zero impedance. F or repetitive switching by contactor, sufficient impedance should be connected in series to limit inrush current to not more
than 6 times the contactor rated continuous current. In many installations, the impedance of connecting conductors ma y be sufficient f or this purpose. When switching to connect additional
banks, the banks already on the line may be charged and can supply additional available short-circuit current which should be considered when selecting the impedance to limit the current.
The ratings for capacitor switching above assume the following maximum available fault currents: NEMA Size 2-3: 5,000 A RMS Sym.; NEMA Size 4-5: 10,000 A RMS Sym.; NEMA Size
6-7: 18,000 A RMS Sym. If available fault current is greater than these values, connect sufficient impedance in series as noted in the previous paragraph.
The motor ratings in the above table are NEMA standard ratings and apply only when the code letter of the motor is the same as or occurs earlier in the alphabet than is sho wn in
the table below. Motors having code letters occurring later in the alphabet may require a larger controller. Consult local Square D field office.
All contactors and starters are rated in
accordance with NEMA standards. The ratings
shown in the price tables are for normal service.
For complete data on power contact ratings , ref er
to Page 13.
Short Circuit Protection
According to the National Electrical Code branch
circuit overcurrent protection must be provided f or
each contactor or starter. For starters refer to
instructions furnished with the thermal unit
selection table. For contactors (Class 8502 or
8702) provide branch circuit overcurrent
protection in accordance with the National
Electrical Code, except do not exceed the
maximum protective device r atings in table belo w.
NEMA
Size
Maximum
Voltage
K5, RK5 or
RK1 Fuse
(Ampere)
Class
60010
00
25012
60020
0
2502535
60030
1
2504060
600
2
25090
600100
3
250125150
4600200400225
5600400600400
66006001200t800
76006001600t1200
tClass L Fuse only.
60100
Capacitor Switching
The kilovar ratings of enclosed, three phase contactors
used as switches for capacitor loads , when only one
load appears on the secondary of a distribution system
are shown in the table on P age 13.
qMean values.
a Size 6 and 7 have a DC coil. The values shown are f or the A C input
to the DC power supply that provides power to the coil.
Inrush VASealed V ASealed Watts
No. of
50
Poles
Hertz60Hertz50Hertz60Hertz50Hertz60Hertz
2 & 32963113637
4 & 54294383738
2-367670047461514
4-512601185 898523.422
Class
J or T
Fuse
(Ampere)
1515
30
60
200
Inverse-Time
Circuit
Breaker
(Ampere)
20
40
80
125
1214
Maintenance of Equipment
Class 9998 Repair Parts Kits are available for all
Class 8502 contactors and Class 8536 starters.
Service bulletins with a complete list of replaceable
parts are supplied with all enclosed devices.
Separate bulletins can be ordered and are listed
along with the appropriate contact parts kit.
Auxiliary contacts, power poles, and timer
attachments can be added by the factory or in the
field on all Type S starters and contactors. The
table below shows the maximum number of
auxiliary units (in addition to the holding circuit contact) that can be added to a given size starter
or contactor. In addition, it is possible to add a
second internal contact on NEMA Size 0, 1, and 2
contactors and starters.
No. of
Type
Poles of
Basic
NEMA
Size
Contactor
00SA2-3
SD
SG
SH
SJ
1, 2 or 3
4 or 5
2-5
(Size 3 & 4)
2-3
(Size 5)
2-3
0, 1 & 2SBSC
3, 4 & 5SESF
6 & 7
Maximum Number of External
Auxiliary Units (In addition to
holding circuit contact)
4 single circuit auxiliary contacts (N.O. or N.C.)
if second internal auxiliary contact is not used.
4 single circuit auxiliary contacts (N.O. or N.C.)
3 single circuit auxiliary contacts (N.O. or N.C.)
plus 1 attached timer (ON or OFF delay).
2 single circuit auxiliary contacts (N.O. or N.C.)
plus 1 power pole adder (1 or 2 poles, N.O. or
N.C.).
1 attached timer (ON or OFF delay) plus 1
power pole adder (1 or 2 poles, N.O. or N.C .)
plus 1 auxiliary contact.
2 single circuit auxiliary contacts (N.O. or N.C.)
1 timer attachment plus 1 auxiliary contact.
4 single circuit auxiliary contacts (N.O. or N.C.)
2 single circuit (Sizes 3 & 4) or 3 single circuit
(Size 5) auxiliary contacts plus 1 attached timer
(ON or OFF delay).
2 single circuit auxiliary contacts (N.O. or N.C.)
plus 1 NEMA Size 0-1 or Size 2 power pole
adder (1 or 2 poles, N.O. or N.C.)
4 single circuit auxiliary contacts (N.O. or N.C.)
3 single circuit auxiliary contacts (N.O. or N.C.)
plus 1 attached timer (ON or OFF delay).
2 single circuit auxiliary contacts (N.O. or N.C.)
plus 1 NEMA Size 0-1 or Size 2 power pole
adder (1 or 2 poles, N.O. or N.C.)
Factory Installed Auxiliary Contacts
Additional auxiliary contacts may be factory or
field added to any Type S contactor or starter. See
table above for maximum number of auxiliary
units. The tab le below lists the F orm designations
for factory installed electrical contacts.
See Class 9999 for field modification kits.
Form Number of Additional Auxiliary
Contacts
When ordering factory installed auxiliary contacts,
the Form designations listed should be used.
Number of N.O.
Contacts
0
1
2
30X30
31X31
40X40
Number of N.C.
Contacts
1X01
2X02
3X03
4X04
0X10
1X11
2X12
3X13
0X20
1X21
2X22
Form Number
Control Circuit Transformers
Class 9070 Type T machine tool control
transformers are normally used when it is
necessary to provide a lower voltage to the control
circuit. This transf ormer with fused protection may
be ordered from the factory by specifying Form
F4T. The addition of a transformer often requires
the use of a larger enclosure. The table below
shows the transformer selection for given sized
starters and contactors with or without auxiliary
units.
NEMA
Size
0 & 1
0 & 1
0 & 1
Mechanically
Interlocked
Devices
2SD 2-5With or without attachments T100
3SE 2-3With or without attachments GO3j
3SE 4 & 5 With or without attachments T300
4SF2-5With or without attachments T300
5SG 2-3AnyT500
6, 7
jClass 8502 & 8536 Type S, Size 3 standard NEMA T ype 1, 4 and 12
enclosures have space for field mounting a fused control circuit
transformer. A Class 9070 T ype GFT3 transformer and fuse block kit
is available for F orm F4T requirements in a NEMA Type 1 enclosure.
NEMA Type 4 and 12 enclosures utilize a Class 9070 T150
transformer and a Class 9999 SF4 fuse block.
uA Class 9070 transformer is an integral part of the Size 6 and Size 7
control circuit providing 120 volt control circuit voltage as standard.
No.
Type
of
Auxiliary Units
Poles
With max. of 2 auxiliary
contacts
SB
SC
SB
SC
SB
SC
SH,
SJ
With timer and maximum of
1-3
1 auxiliary contact
With 3 or 4 auxiliary
contacts with timer and 2 or
3 auxiliary contacts
With or without auxiliary
4 & 5
contacts or timer
1-5With or without attachments T100
2-3Anyu
Transformer
Class 9070
Type
T50
T100
T100
Power Poles
Single or double circuit power pole adders ma y be
factory or field installed on 2 and 3 pole Type S
contactors and starters. The table below lists the
Form designation for factory installed power pole
adders. Only one power pole adder may be
installed per contactor.
Size 6 Type SH and Size 7 Type SJ Contactors
and Starters
Size 6 Type SH and Size 7 T ype SJ contactors and
starters have a DC coil operated by a solid state
rectifier circuit mounted on the device and
powered from an ac source. The Size 6 and 7 are
equipped as standard with a fused control circuit
transformer (Form F4T) rated 240/480-120 volts
60 hertz, 220/440-110 volts 50 hertz. The purpose
of this transformer is to provide an isolated 120
volts 60 hertz, 110 volts 50 hertz, supply for the
control circuit. Size 6 and 7 devices may be
ordered for other system voltages by specifying
the voltage and frequency desired.
Field conversion for other system voltages is
accomplished by one of the following methods,
NOT BY THE USUAL PRACTICE OF CHANGING
THE COIL:
1. If the factory wiring is indicated as being for
480 volts 60 hertz, 440 volts 50 hertz,
conversion to 240 volts 60 hertz, 220 volts 50
hertz, can be accomplished by reconnecting
the control transformer as illustrated on
instruction sheet supplied with the controller.
This is the same method that would be used
on Class 9070 control circuit transformers.
Conversion to any other voltage requires
replacement of the control transformer. For
other system voltages: i.e. 208, 277, 380, 600
volts, a new transformer with single voltage
primary must be selected from table at right.
Control transformer connections are
illustrated on the instruction sheet supplied
with the controller.
2. If the factory wiring is indicated as being for
any voltage other than 480 volts 60 hertz, 440
volts 50 hertz, conversion to any other voltage
requires replacement of the control
transformer. Refer to table at right.
3. The standard transformer supplied may be
used to power a maximum of five Class 9001
Type K illuminated operators powered with
transformer type light modules. When extra
capacity to power control relays or other
inductive loads is required, a second
transformer must be added. Extra capacity
can be purchased as Form F4T with additions
in 100 VA increments.
4. Standard controllers are wired for common
control and are not convertible for operation of
the control circuit from a separate source of
supply voltage. Controllers designated Form S
have special wiring designed for separate
control. They are furnished with an isolating
transformer, usually ha ving a 120 volt primary
and 120 volt secondary, that must not be
bypassed. Form S controllers are not
convertible for operation on common control.
The tables below give the replacement
transformers for Type S Sizes 6 and 7 contactors
and starters. To change voltages on these
devices, coils are not changed, instead
transformers with the desired voltage are
changed.
Replacement Control Transformers for Type S
Size 6
A N.O. holding circuit contact and a N.C . auxiliary
contact are provided as standard. The holding
circuit contact may or may not be required for
either 3-wire or 2-wire control. Size 6 and 7
devices have an additional N.C. auxiliary contact
which is wired in the coil control circuit. DO NOT