Installation Instructions
Bulletin 1494F Disconnect Switch and Accessory Kits for Bulletins 502, 502L,
506, 512, 522, 1232X and 1494G
WARNING: To prevent electrical shock, disconnect from power source before installing or servicing. Follow NFPA 70E requirements. Install in suitable enclosure. Keep free from
contaminants.
The following procedures are critical to the proper operation of the disconnect handle and switch. Failure to follow these steps can result in damage to the equipment and / or serious
injury or death to the operator.
Installation, adjustments, putting into service, use, assembly, disassembly, and maintenance shall be carried out by suitably trained personnel in accordance with applicable code of
practice. In case of malfunction or damage, no attempts at repair should be made. The product should be returned to the manufacturer for repair. Do not dismantle the product.
Disconnect Kit Cat No. Description
1494F-MS400 5400 Amp Mechanism
1494F-M2
1494F-S2
1494F-D400 5400 Amp Switch
1494F-FS400 5400 Amp Fuse Block
1401-N46
1401-N45
1401-N54
1401-N55
7-1/2" Painted Metal Handle
7-1/2" Stainless Steel Handle
Fuse Clip, Class H, J, 400A - 250V, 400A - 600V
Fuse Clip, Class H, J, 200A-250V, 200A-600V
Fuse Clip, Class R, 200A-250V, 200A-600V
Fuse Clip, Class R, 400A-250V, 400A-600V
NEMA Starter
Size(s)
5
5
5
5
5
5
42052-105-01
DIR 42052-105 (Version 03) Publication 1494F-IN014C-EN-E - January 2013
Copyright © 2013 Rockwell Automation, Inc. All Rights Reserved. Printed in USA.
1494R-N14
1494R-N15
1494F-PH5 400 Amp Phase Barrier 5
1495-N68
Lug Connector: Wire Size (2) #1/0 - 250 MCM
Lug Connector: Wire Size #4 ... 500 MCM
5
5
5Fuse Cover with Door
2
Bulletin 1494F Disconnect Switch and Accessory Kits
Operating Mechanism and Handle Installation
1 2
IMPORTANT: Apply grease to O-Ring
seal to retain into handle groove.
3 4
2
1
60 - 80 lb-in
8 lb-in
Publication 1494F-IN014C-EN-E - January 2013 42052-105-01 DIR 42052-105 (Version 03)
Operating Mechanism and Handle Installation (Cont’d)
5
1
2
3Bulletin 1494F Disconnect Switch and Accessory Kits
Disconnect Switch Installation
1 2
90 - 130 lb-in
IMPORTANT: Move operating handle to “ON” position
after assembly to ensure the proper engagement of the
disconnect switch cross bar to the handle operating
mechanism.
LINE TERMINAL GUARD
Publication 1494F-IN014C-EN-E - January 2013 42052-105-01 DIR 42052-105 (Version 03)
4
Bulletin 1494F Disconnect Switch and Accessory Kits
Trailer Fuse Block Installation
Note: Not required for non-fusible disconnect switch applications.
1. Refer to the gures and chart below to determine the position on the mounting plate and the orientation of
the trailer fuse block.
400 Amp Disconnect Switch
and Trailer Fuse Block on a
NEMA Size 5 Combination Starter
Position 1
Position 2
Position 3
Position 4
Position 5
Position 6
Position
3
5
1
4
6
2
Amps
200
200
200
400
400
400
Voltage
250
600
600
250
600
600
Fuse Class
H/R
H/R
J
H/R
H/R
J
90 - 130 lb-in
Publication 1494F-IN014C-EN-E - January 2013 42052-105-01 DIR 42052-105 (Version 03)
Phase Barrier and Fuse Clip Installation
5Bulletin 1494F Disconnect Switch and Accessory Kits
Amp
Rating
400
400 Amp Rating
Phase Barrier
Catalog Number
1494F-PH5
1
21
1
2
2
Click
200A Clips
16 - 22 lb-in
400A Clips
22 - 37 lb-in
43
2
1
200A Clips
22 - 37 lb-in
400A Clips
40 - 50 lb-in
Publication 1494F-IN014C-EN-E - January 2013 42052-105-01 DIR 42052-105 (Version 03)
Fuse Cover Installation
Cat 1495-N68
Non-Fused
200 A, 250 V, Class H, R Fuses
200 A, 600 V, Class H, J, R Fuses
400 A, 250 V, Class H, R Fuses
400 A, 600 V, Class H, J, R Fuses
1
2
2
1
Testing of Disconnect Switch
1. Verify that both the disconnect switch and the disconnect handle are in the OFF position. (the disconnect switch can be moved into the
OFF position by moving the crossbar downward (counter-clockwise) so that the blades are exposed).
2. To test that the disconnect switch and the mechanism are properly aligned. Verify that the disconnect switch can be turned on by
moving the defeater lever downward and moving the disconnect handle to the ON position (the blades should enter the disconnect
switch arc hood).
3. Verify that the disconnect switch can be turned o by moving the disconnect handle to the OFF position (the blades should exit the
disconnect switch arc hood).
Click
Allen-Bradley, Rockwell Software, and Rockwell Automation are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Publication 1494F-IN014C-EN-E - January 2013
Copyright © 2013 Rockwell Automation, Inc. All Rights Reserved. Printed in USA.
DIR 42052-105 (Version 03)
42052-105-01
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