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Square D > On-line Catalog >
Products
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NEMA Contactors and Starters > Accessories: Auxiliary Contacts |
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Section - Page
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Accessories
Auxiliary Contacts
Class 9999
Auxiliary Contacts for Manual and Magnetic Contactors and Starters
Internal Contacts
Class 9999 Type SX11 internal contact kit is a replacement unit for the N.O. holding circuit contact supplied as standard on Type S Sizes 00–2 three phase starters and contactors. The Class 9999 Type SX12 is a replacement unit for the N.C. electrical contact which is furnished as standard on Type S, Sizes 00–2 mechanically interlocked devices (e.g., Class 8736 reversing starters). Internal contacts are also used on Class 2510 Types M & T manual starters. The internal contacts can be used for other applications as long as the electrical rating is not exceeded. See table below for electrical ratings.
External Contacts
Class 9999 Type SX6 external auxiliary contact is supplied as standard for the N.O. holding circuit contact on Type S Sizes 3–7 starters and contactors. Additional auxiliary contacts can be added to Type S contactors, starters and lighting contactors. These contacts mount on either side of the basic contactor and are available with convertible or non-convertible contacts. The contacts of the convertible version can be changed from N.O. to N.C. or vice versa in the field. The non-convertible version has fixed contacts, either N.O. or N.C.
To determine the number of auxiliary contacts which can be added to each Type S contactor or starter, refer to the Class 8536 or Class 8736 section.
Table 16.352: Volts
AC AC Only
(35% Power Factor) Volts
AC AC Only
(35% Power Factor) 120–600
Table 16.353: NEMA
Size External—Field Convertible 00–7 External—Non-Convertible Internal—Non-Convertible
a Types SX9 and SX10 or Types SX16 and SX17 must be used together and mounted on the same side of the contactor. They are suitable for applications where it is necessary for a normally open contact to overlap a normally closed contact.
b Types SX11 and SX12 are not applicable for use on NEMA Sizes 3 or larger. Internal contacts can also be used on Class 2510 Types M and T manual starters.
Table 16.354: Class 8910 and 8911 Definite Purpose Contactors and Starters – Auxiliary Contacts Class 8910 or
8911 Type Contact
Arrangement Class 9999
Type $ Price
Each
c Type DPA122 and DPA123 use same auxiliary contacts as Type SA-SJ above. (Example: Class 9999 Type SX6).
Table 16.355: Class 8965 Reversing/Hoist Contactors –Auxiliary Contacts Device To Be Serviced Contact
Arrangement Type of
Connector Class 9999
Type $ Price
Each Screw/
Quick-Connect 1 N.O.
each side 1 N.C.
each side 1 N.O.
each side 1 N.C.
each side
Table 16.356:
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Release Date: 03/31/2007 |