Brochure
Table Of Contents
- AC Magnetic Contactors Class 8502
- AC Magnetic Starters Class 8536
- Class 8502 and 8536 Application Data
- Power Contact Ratings
- Short Circuit Protection
- Capacitor Switching
- Maintenance of Equipment
- Auxiliary Units
- Factory Installed Auxiliary Contacts
- Form Number of Additional Auxiliary Contacts
- Control Circuit Transformers
- Power Poles
- Size 6 Type SH and Size 7 Type SJ Contactors and Starters
- Operation Rates
- Auxiliary Contacts
- Class 8502 Open Type Class 8536 Open Type
- NEMA Type 1 — General Purpose Enclosure
- NEMA Type 1 — General Purpose Enclosure with Form F4T
- NEMA Type 7 & 9 Enclosures for Hazardous Locations Sizes 0-2, Bolted Cover, Cast Iron, Sizes 0-5,...
- NEMA 7 & 9 Bolted Cover, Cast Aluminum
- General Information
- Altitude
- Termination Means
- Auxiliary Contacts
- Auxiliary Contact Units
- section 2 – reversing magnetic starters and contactors
- AC Magnetic Reversing Contactors Class 8702
- AC magnetic reversing starters class 8736
- General Information
- Overload Relays
- MOTOR LOGIC™ Solid State Overload Relay (SSOLR)
- Enclosures
- Holding Circuit Contact
- Coil Voltages
- Mechanical Interlocks
- Auxiliary Contacts
- Type S Accessories
- Power Contact Ratings
- Maintenance of Equipment
- Control Transformer Selection
- Auxiliary Units
- Factory Installed Auxiliary Contacts
- Open Type — 2 or 3-Pole Only
- Auxiliary Contact Units
- General Information
- section 3 – motor starters multi-speed
- Additional Features
- Special Relays for Non-Reversing and Reversing Multispeed Starters
- Thermal Units
- Typical Elementray Diagrams
- Thermal Units
- Vertically Arranged, Open Type, Two Speed Starters
- Thermal Units
- Special Arrangements with Three Devices
- Ordering Information Required
- Thermal Units
- Thermal Units
- Application Data for Types SB-SH
- Control Transformer Selection
- Mechanical Interlock
- Section 1 – magnetic contactors and starters
© 1998 Square D All Rights Reserved
28
5/98
Holding Circuit Contact
Two normally open holding circuit contacts are
provided on all reversing contactors and starters
as standard. Sizes 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. Additionally, two normally closed
auxiliary contacts are provided as standard and
wired to prevent energization of both coils at the
same time. Sizes 00-2 use a Class 9999 SX12
auxiliary contact while Sizes 3-7 use a Class 9999
SX7 auxiliary contact for this purpose. See Class
9999, for the holding circuit contact electrical
ratings.
Coil Voltages
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 Voltage Codes have been
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
reversing contactors and starters will be wired for
separate control.
Mechanical Interlocks
Mechanical interlocks are available for
replacement or field assembly of Type S reversing
contactors and starters (Sizes 00-4 ONLY). See
Class 9999 for additional information.
Auxiliary Contacts
Additional auxiliary contacts may be added to
Type S reversing contactors and starters. See
Page 33 for maximum number of auxiliary units
and Form designations for factory installed
auxiliary contacts. See Class 9999 for auxiliary
contact kits for field installation.
Type S Accessories
Additional accessories such as power poles,
pneumatic timer attachments, and cover mounted
control stations are available as factory or field
modifications.
Full Voltage Reversing Contactors and Starters — NEMA
Application Data – Class 8702, 8736
File LR60905
Class 3211-04
File E78351
CCN NLDX