9421LF1 SQUARE D, 9421LF1 Datasheet - Page 8
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9421LF1
Manufacturer Part Number
9421LF1
Description
CIRCUIT BREAKERS, ACCESSORIES
Manufacturer
SQUARE D
Datasheet
1.9422ATCF331.pdf
(44 pages)
8
Auxiliary Switch
Handle
Switch
File E52369
CCN: WHTY2
File LR15705
Class 4652 04
File E78403
CCN: NKCR
File E52369
CCN: WHTY2
NEMA-Style Door-Mounted Disconnect Switches (D10)
A complete installation includes a D10 disconnect switch, D11 handle operator, and D12 fuse clip kit.
The D10 accepts Class H, K, J, or R fuses — or can be used for non-fusible applications. The D10 dis-
connect switch is operated by a cast metal handle operator that is lockable in the OFF position and de-
featable in the ON position. Other features of the D10 disconnect switch are:
Disconnect Switches
(Without Fuse Clips or Shorting Straps)
j
Rotary Handle Operating Mechanism
Auxiliary Electrical Interlock
(for mounting on 30A – 200A switch
k
600V – Without Service Entrance Rating
600V – With Service Entrance Rating
1 Normally Open
1 Normally Closed
1 Normally Open and 1 Normally Closed
2 Normally Open
2 Normally Open and 2 Normally Closed
Rotary Handle Operator Kits – Door Mounting
Rotary Operator
Starter
Starter
Variable Depth
One block per switch.
NEMA
NEMA
Non-fused rating; with fuses, depends on fuse size.
Type
Type
Size
0 - 1
Size
0 - 1
Description
• High I
• Longer contact life – Quick-make, quick-break, cam-trip, and spring-loaded action throws the
• Visible contact indication – Clear ON and OFF markings plus actual contact positions are both
• Fuse-mounting flexibility – Fuse clips are mounted on top of the switch, providing a compact
• Dead-front construction – When the switch is in the OFF position, all visible current-carrying
• Auxiliary interlocks – One- or two-pole interlocks can be added to the disconnect switch when
2
3
4
2
3
4
(With Switch Contacts Open)
switch into the ON position under pressure. This provides a quick-break when switching to the
OFF position. The double-break contact principle also assures longer life and exceptional inter-
rupting capacity.
visible through pole “windows.”
unit. Interchangeable fuse-clip kits are available for quick adaptation to other ratings.
parts are de-energized, thus providing additional safety for maintenance electricians.
required.
Amperes
Amperes
NEMA Type 1, 3, 3R, 4, 12
Block Description
Switch
Switch
Rating
Rating
100
200
100
200
30
60
30
60
2
T rating – This switch meets automotive and heavy-industry requirements.
Rating
30, 60
Amp
100,
200
120V
120V
Max. Horsepower Rating j
Max. Horsepower Ratingj
10
15
25
10
15
25
5
5
© 1997 Square D All Rights Reserved
Enclosure Interior
Depth - Inches
240V
240V
200-
200-
10
20
30
50
10
20
30
50
10 - 16
5
6 - 10
5
8
480V 600V
480V 600V
- 6
100
100
20
40
60
20
40
60
D11N0
D11NC
D11N0C
D11N00
D11N0C2
100
100
Catalog
Number
25
50
75
25
50
75
k
)
Switches
D11SF10
D11SF16
Catalog
Number
D11SF4
For MC
Number
Number
D10S1H
D10S2H
D10S3H
D10S4H
Catalog
Catalog
D10S1
D10S2
D10S3
D10S4
Fuse Clip Kits
q Continuous current should not exceed switch rating (size). Fuse clip kits
b Cannot be used with service entrance rated switch.
should be sized to accommodate inrush.
Switch
100 A
200 A
Size
30 A
60 A
D10
Amperes
101 - 200
101 - 200
101 - 200
201 - 400
201 - 400
101 - 200
101 - 200
101 - 200
101 - 200
101 - 200
201 - 400
201 - 400
201 - 400
201 - 400
201 - 400
61 - 100
61 - 100
61 - 100
61 - 100
61 - 100
61 - 100
61 - 100
61 - 100
61 - 100
61 - 100
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
31 - 60
0 - 30
0 - 30
0 - 30
0 - 30
0 - 30
0 - 30
0 - 30
0 - 30
Fuse-Clip Ratingq
No Fuse
No Fuse
No Fuse
No Fuse
AC Volts
250
250
600
600
600
250
600
600
600
250
250
600
600
250
250
600
600
600
250
600
600
250
600
250
250
600
600
600
250
600
600
250
600
600
250
250
600
600
600
250
250
600
600
600
Type
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
H, K
R
R
R
R
R
R
R
R
R
R
R
R
J
J
J
J
J
J
J
J
J
D12CO1
D12C21
D12CR21
D12C61
D12CR61
D12CJ1
D12C22
D12C62
D12CR62
D12CJ2
D12C23
D12D02
D12DR21
D12D61
D12DR61
D12D22
D12DR22
D12D62
D12DR62
D12DJ2
D12D23
D12D63
D12DJ3
D12E03
D12E22
D12E62
D12E23
D12ER23
D12E63
D12ER63
D12EJ3
D12F24
D12F64
D12FJ4
D12F25b
D12FJ5b
D12F04
D12F63
D12F24
D12FR24
D12F64
D12FR64
D12FJ4
D12F25b
D12FR25b
D12F65b
D12FR65b
D12FJ5b
12/97
Number
Catalog