Brochure

© 1998 Square D All Rights Reserved
42
5/98
Line voltage type, ac two speed starters are designed to control reconnectable squirrel cage motors to
operate at two different constant speeds, depending upon their construction. The use of an automatic
starter and proper control station permits greater operating efficiency and offers protection to both motor
and machine against improper sequencing or too rapid speed change. Protection against motor
overload in each speed is provided by an overload relay block which accepts three (3) thermal units.
380 Volts, 50 Hertz – above type numbers will
apply to starters for 380 volt, 50 hertz but the
selection by NEMA size must be based on the
horsepower ratings in the following table:
Thermal Units
Thermal units should be ordered separately. See
Thermal Unit Selection Index. Do not use
horsepower rating(s) for thermal unit
selection. All three phase two speed magnetic
starters require six (6) thermal units, three per
speed. Use nameplate FLC’s (Full Load
Currents) from motor nameplate.
Special Features — See Factory Modifications
and Forms, Catalog 9999CT9701.
Dimensions — See Pages 49-52.
Field Modification Kits — See Catalog
9999CT9701 Section.
Class 8810, 8811 and 8812 multispeed starters,
both non-reversing and reversing versions, are
available with either circuit breaker or disconnect
switch. Refer to Factory Modifications and Forms
for Form numbers and price additions.
Class 8810 Non-reversing – Two Speed – 50-60 Hertz – 600 Volts Maximum
Type
of
Motor
NEMA
Size
Maximum Polyphase Horsepower
Ratings General
Purpose
Enclosure
NEMA
Type 1
Watertight and
Dusttight
Enclosure
(Stainless Steel)
(Sizes 0-5 only)
Size 6 Sheet Steelc
NEMA Type 4
For Hazardous
Locations Class I
Groups C & D
Class II
Groups E, F & G
NEMA Types
7 and 9k
Dusttight and
Driptight
Industrial Use
Enclosure
NEMA Type 12j
Open
Type
Constant
Horsepower
Motors
Constant Torque
or Variable
Torque Motors
200 V 230 V
460-
575 V
200 V 230 V
460-
575 V
Type Type Type Type Type
Single Winding (Consequent Pole) 5-Pole – 3-Pole
Constant
HP
0 223. . .. . .. . .SBG-1 SBW-1q . . . SBA-1q SBO-1
1 557
1
⁄
2
. . . . . . . . . SCG-1 SCW-1q SCR-1k SCA-1q SCO-1
27
1
⁄
2
10 20 . . . . . . . . . SDG-1 SDW-1 SDR-1k SDA-1 SDO-1
3 20 25 40 . . . . . . . . . SEG-1 SEW-1 SER-1k SEA-1 SEO-1
4 30 40 75 . . . . . . . . . SFG-1 SFW-1 . . . SFA-1 SFO-1
5 60 75 150 . . . . . . . . . SGG-1 SGW-1 . . . SGA-1 SGO-1
6 100 150 300 . . . . . . . . . SHG-1 SHW-1 . . . SHA-1 SHO-1
Constant
Torque
or
Variable
Torque
0 . . . . . . . . . 3 3 5 SBG-2 SBW-2q . . . SBA-2q SBO-2
1 . . . . . . . . . 7
1
⁄
2
7
1
⁄
2
10 SCG-2 SCW-2q SCR-2k SCA-2q SCO-2
2 . . . . . . . . . 10 15 25 SDG-2 SDW-2 SDR-2k SDA-2 SDO-2
3 . . . . . . . . . 25 30 50 SEG-2 SEW-2 SER-2k SEA-2 SEO-2
4 . . . . . . . . . 40 50 100 SFG-2 SFW-2 . . . SFA-2 SFO-2
5 . . . . . . . . . 75 100 200 SGG-2 SGW-2 . . . SGA-2 SGO-2
6 . . . . . . . . . 150 200 400 SHG-2 SHW-2 . . . SHA-2 SHO-2
Two Winding (Separate WInding) 3-Pole – 3-Pole f
Constant
HPf
0 223. . .. . .. . .SBG-3 SBW-3q . . . SBA-3q SBO-3
1 557
1
⁄
2
. . . . . . . . . SCG-3 SCW-3q SCR-3k SCA-3q SCO-3
27
1
⁄
2
10 20 . . . . . . . . . SDG-3 SDW-3 SDR-3k SDA-3 SDO-3
3 20 25 40 . . . . . . . . . SEG-3 SEW-3 SER-3k SEA-3 SEO-3
4 30 40 75 . . . . . . . . . SFG-3 SFW-3 . . . SFA-3 SFO-3
5 60 75 150 . . . . . . . . . SGG-3 SGW-3 . . . SGA-3 SGO-3
6 100 150 300 . . . . . . . . . SHG-3 SHW-3 . . . SHA-3 SHO-3
7 . . . 225 450 . . . . . . . . . SJG-3 . . . . . . SJA-3 SJO-3
Constant
Torque
or
Variable
Torquef
0 . . . . . . . . . 3 3 5 SBG-4 SBW-4q . . . SBA-4q SBO-4
1 . . . . . . . . . 7
1
⁄
2
7
1
⁄
2
10 SCG-4 SCW-4q SCR-4k SCA-4q SCO-4
2 . . . . . . . . . 10 15 25 SDG-4 SDW-4 SDR-4k SDA-4 SDO-4
3 . . . . . . . . . 25 30 50 SEG-4 SEW-4 SER-4k SEA-4 SEO-4
4 . . . . . . . . . 40 50 100 SFG-4 SFW-4 . . . SFA-4 SFO-4
5 . . . . . . . . . 75 100 200 SGG-4 SGW-4 . . . SGA-4 SGO-4
6 . . . . . . . . . 150 200 400 SHG-4 SHW-4 . . . SHA-4 SHO-4
7 . . . . . . . . . . . . 300 600 SJG-4 . . . . . . SJA-4 SJO-4
f Type numbers shown for three phase separate winding motor starters apply only when motor windings are wye connected. When motor windings are
connected open delta use three phase consequent pole motor starters.
q Separate NEMA Type 4 and 12 enclosures available.
j NEMA Type 12 enclosures may be field modified for outdoor applications.
c NEMA Type 4X enclosures available; consult local Square D field office.
k Addition of forms to standard NEMA Type 7 and 9 enclosed devices is limited. Consult local Square D field office.
NEMA Size 0123456
Constant Horsepower 3 7
1
⁄
2
20 40 60 100 200
Constant or Variable
Torque Horsepower
5 10255075150300
How to Order:
To Order Specify: Catalog Number
• Class Number
• Type Number
• Coil Voltage Code
• Form(s)
Class Type Coil
Voltage
Code
Form(s)
8810 SCO8 VO6 P1S
AC Two Speed Magnetic Starters
Line Voltage — with Melting Alloy Overload Relays – Class 8810
Class 8810, Type S
in NEMA Type 1 Enclosure
File LR60905
Class 3211-04
File E78351
CCN NLDX