Operating Mechanisms, Disconnect Switches, and Door ... - Square D
Operating Mechanisms, Disconnect Switches, and Door ... - Square D
Operating Mechanisms, Disconnect Switches, and Door ... - Square D
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Class 9421 Devices<br />
6<br />
Class 9421<br />
<strong>Disconnect</strong> Switch<br />
Auxiliary<br />
Contact<br />
H<strong>and</strong>le<br />
Terminal Shields<br />
<strong>and</strong> Fuse Covers<br />
Auxiliary Components<br />
File E14839<br />
CCN: NKCR2<br />
File CR75721<br />
Class 3211 02<br />
Class 9421<br />
IEC-Style <strong>Door</strong>-Mounted <strong>Disconnect</strong> <strong>Switches</strong> (Type N)<br />
The 9421 Type N is an IEC-style door-mounted disconnect switch with onboard fusing for Class CC <strong>and</strong><br />
Class J fuses. The switch is UL Listed <strong>and</strong> CSA certified, <strong>and</strong> provides service entrance spacing, 100KA<br />
withst<strong>and</strong>ability <strong>and</strong> Type 2 coordinated protection when used with <strong>Square</strong> D <strong>and</strong> Telemecanique starters<br />
in accordance with fuse selection tables.<br />
Each installation will require a disconnect switch, h<strong>and</strong>le, <strong>and</strong> shaft.<br />
Class 9421 <strong>Disconnect</strong> <strong>Switches</strong><br />
<strong>Disconnect</strong><br />
Switch Size<br />
30A<br />
60A<br />
H<strong>and</strong>les<br />
<strong>Disconnect</strong><br />
Switch Size<br />
1 Phase AC<br />
Maximum Horsepower Ratings<br />
3 Phase AC DC<br />
115V 230V 200V 230V 460V 575V 125V 250V<br />
File E152727 File LR75721<br />
CCN: WJA2 Class 3211 02<br />
Fuse<br />
Selection<br />
30A, 60A All<br />
Terminal Shields <strong>and</strong> Fuse Covers<br />
<strong>Disconnect</strong><br />
Switch Size<br />
30A<br />
60A<br />
Outline Dimensions <strong>and</strong> General Location Information for 30 Amp Type N <strong>Disconnect</strong> <strong>Switches</strong><br />
© 1997 <strong>Square</strong> D All Rights Reserved<br />
Fuse Selection<br />
12/97<br />
Switch<br />
2 3 7.5 7.5 15 20 3 5 Unfused NC1<br />
.75 2 5 5 10 10 2 3 30A Class CC NC2<br />
2 3 7.5 7.5 15 20 3 5 30A Class J NC3<br />
3 10 15 15 30 50 5 10 Unfused ND1<br />
3 10 15 15 30 50 5 10 60A Class J ND3<br />
H<strong>and</strong>le<br />
Color<br />
H<strong>and</strong>le<br />
Selection<br />
NEMA<br />
Type<br />
H<strong>and</strong>le<br />
Kit<br />
Type<br />
Red/Yellow 1/12/4/4X NW2<br />
Black 1/12/4/4X NW2B<br />
Type<br />
Terminal Shieldp NTS30<br />
CC Fuse Cover t NCF30<br />
J Fuse Cover NJF30<br />
Terminal Shieldp NTS60<br />
J Fuse Covert NJF60<br />
Auxiliary Contact Shielda NXSH<br />
p Terminal shield for line or load side.<br />
t 30A CC fuse cover <strong>and</strong> 60A J fuse cover are also used for non-fusible<br />
applications.<br />
a 2 per package<br />
LINE TERMINALS<br />
0.63<br />
(16)<br />
TYP. PER CONTACT<br />
UP TO FOUR AUXILIARY<br />
BLOCKS MAY BE FITTED<br />
MUST BE INNER<br />
AUXILIARY CONTACT<br />
LOAD TERMINALS<br />
4.33 (110)<br />
3.82 (97)<br />
LINE TERMINAL<br />
SHIELD STANDARD<br />
LOAD TERMINAL<br />
SHIELD OPTIONAL<br />
inches<br />
(millimeters)<br />
4.45<br />
(113) 4.65<br />
(118)<br />
OPERATING SHAFT & COUPLING<br />
Shafts <strong>and</strong> Shorting Links<br />
<strong>Disconnect</strong><br />
Switch Size<br />
Enclosure<br />
Depth (max.)<br />
Auxiliary Contacts<br />
TERMINAL<br />
CONNECTIONS<br />
3.73 TYPE NC1, NC2<br />
(95) with fuse cover<br />
5.70 TYPE NC3<br />
(145) with fuse cover<br />
Shaft Length<br />
1.27<br />
(32)<br />
Type<br />
Shaft Kit<br />
Type<br />
30A, 60A<br />
10"<br />
18"<br />
166mm<br />
360mm<br />
NS16<br />
NS36<br />
Shorting<br />
Linksq<br />
30A NSL30<br />
60A NSL60<br />
q 3 per package; replacement for 9421 NC1 & 9421 ND1<br />
<strong>Disconnect</strong><br />
Switch Size<br />
Auxiliary<br />
Contact<br />
Kit<br />
Type<br />
SPDT N.O. Inner NAX10<br />
30A, 60A<br />
SPDT<br />
DPDT<br />
N.O.<br />
2 N.O.<br />
Outer<br />
Inner<br />
NBX10<br />
NAX20<br />
DPDT 2 N.O. Outer NBX20<br />
NOTE: Each installation requires a disconnect switch, h<strong>and</strong>le, <strong>and</strong><br />
shaft. Further, the first auxiliary contact block that is used must be an<br />
inner block (maximum is 1 inner <strong>and</strong> 3 outer blocks).
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