Allen-Bradley 1494V Disconnect Switch (400/600A - Series A) Installation Instructions
Allen-Bradley 1494V Disconnect Switch (400/600A - Series A) is a variable depth, flange operated disconnect switch kit designed for use with both 400 and 600 amp switches. The kit includes various components, such as handles, fuse blocks, connecting rods, and auxiliary contacts, allowing for customization and flexibility in installation.
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1 2 3 A 4 5 6 7 8 Bulletin 1494V Variable Depth, Flange Operated Disconnect Switch Kits for 400 and 600 Amperes (Series A) Switches ATTENTION: To prevent electrical shock, disconnect from power source before installing or servicing. Install in suitable enclosure. Keep free from contaminants. Components B Cat No. Description Switch Rating (Amps) 1494V-H2 1494V-R2 1494V-W2 7-1/2" Painted Metal Handle 7-1/2" Molded Handle 7-1/2" Stainless Steel Handle 400...600 1494V-DS400 1494V-DS600 400 Amp Switch 600 Amp Switch 400 600 1494V-RB1 Standard Connecting Rod (2 per kit) Enclosure Working Depth: 9" to 9-1/4" Extended Connecting Rod (2 per kit) Enclosure Working Depth: 9" to 23" 400...600 1494V-FS400 1494V-FS600 1491-N621 1491-R621 400 Amp Fuse Block 600 Amp Fuse Block (Class J fuses only) 600A 250V/600V Class H 600A 250V/600V Class R 400...600 600 600 600 1401-N46 1401-N45 1401-N54 1401-N55 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 400...600 400 400 400 595-A 595-B 595-N1 (1) N.O. Auxiliary Contact (1) N.C. Auxiliary Contact Auxiliary Contact Adapter Kit 400...600 1494R-N10 Lug Connector: Wire Size (2) #1/0 - 350 MCM 400...600 1494R-N11 Lug Connector: Wire Size (2) #1/0 - 350 MCM 400...600 1494R-N12 Lug Connector: Wire Size #4. . .500 MCM 400 1495-N61 Fuse Cover with Door (only for Right-Hand Installation) 400...600 L1 L2 L3 C 1494V-RB2 D E F G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL INTERNATIONAL CORPORATION OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL INTERNATIONAL CORPORATION (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. G. Ushakow CHKD. M. Jutz APPD. J. Koziczkowski DR. ANGLES: 42052 N/A DATE DATE DATE 12-13-06 12-13-06 12-13-06 DWG. SIZE B SHEET 1 OF 8 42052-073 B-vertical.ai 1 2 3 4 5 6 7 8 A Handle Installation 1 C Locate Handle C B B A A E E B Door Catch Mounting Bracket Door Catch Mounting Bracket D D Right Hand Flange C Left Hand Flange NEMA SIZE A (min) B (min) C (max) D E F G H J K L M 400A 14 - 3/16" 29/32" 1 - 7/32" 1 - 5/8" 3 - 49/64" 6 - 1/2" 3" 5" 9/16" 1/2" 1/4" 3/4" 600A 18 - 3/16" 29/32" 1 - 7/32" 1 - 5/8" 3 - 49/64" 6 - 1/2" 3" 5" 9/16" 1/2" 1/4" 3/4" DIMENSIONS NOT SUITABLE FOR 1494V-R2 HANDLE 2 Drill Handle Holes 3 Locate Door Catch Mounting Bracket K (2) - 21/64" Dia. Holes L Enclosure Door J Door Catch Mounting Bracket 30 lb-in G D H F Door Catch M Enclosure Base C Square Corners or 1/4" R. B D Notes: A) Enclosures with a Flange Thickness less than 3/16" use dimensions above. B) Enclosures with a Flange Thickness 3/16" and greater use dimensions in Mounting Kit 1494V-H6. This kit requires "B" dimension of 1-7/32" min. C) For large enclosure use 1-1/8" "M" dimension, using large enclosure door hardware (1494V-L3, 1494V-LL3). D) The door catch mounting bracket is provided with projections for welding; however, holes can be drilled in the bracket using the projections for locating hole centers. After proper location, it may be used as a template and drill corresponding holes in the enclosure door. Fasten the bracket with hardware supplied by user. If properly assembled, the hardware should not be accessible for tampering with by unauthorized personnel. E 5 4 Install Gasket Install Handle to Flange 6 Important: Use grease from grease capsule to keep o-ring seal in handle groove during installation. Install Defeater Lever (Note: After handle is mounted on the enclosure flange.) 7-11 lb-in 2 50-65 lb-in 1 F (2) G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL INTERNATIONAL CORPORATION OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL INTERNATIONAL CORPORATION (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 2 OF 8 42052-073 B-vertical.ai 1 2 3 4 5 6 7 8 Disconnect Switch Installation A 1 Locate CC AA CC GG Disconnect Switch HH HH BB BB DD B DD Right Hand Flange C Left Hand Flange NEMA SIZE AA BB CC DD 400A 2 - 5/64" 6 - 5/32" 8 - 17/64" 14 - 31/32" 2 - 5/64" (4) 5/16-18 600A 2 - 5/64" 6 - 5/32" 8 - 17/64" 14 - 31/32" 2 - 5/64" (4) 5/16-18 GG HH Conversion from Right-Hand Installation to Left-Hand Installation 2 With the disconnect switch in the "OFF" position, (blades visible) loosen and remove the (3) hex head screws. Remove the drive mechanism from the right-hand side of the disconnect switch. Save the (3) 5/16-18 hex head screws shown below. D 3 Rotate the crossbar assembly to the "ON" position (blades fully engaged - not visible). (Use any convenient adjustable wrench to aid in rotating the crossbar & moveable blades. L3 L1 L2 L2 L1 L3 2 1 E 4 ATTENTION: Do not attempt to change the position of the drive mechanism after removal from the disconnect assembly. L3 L2 Position the drive mechanism assembly as shown below and install the (3) 5/16-18 hex head screws. L1 40-60 lb-in 2 F 1 (3) G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL AUTOMATION, INC. OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL AUTOMATION, INC. (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 3 OF 8 42052-073 B-vertical.ai 1 A 2 3 4 5 6 7 8 Trailer Fuse Block and Fuse Clip Installation 1 Install Trailer Block 2 Install Fuse Clips B Q R 40 lb-in Y AA V Z BB CC X C 3 Install Wire Lugs to Terminals 3 S 2 L1 L2 L3 1 E 4 S F (4) G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL AUTOMATION, INC. OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL AUTOMATION, INC. (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 4 OF 8 42052-073 B-vertical.ai 1 A 2 3 4 5 6 7 8 4 Install Wire to Lugs 1 T L1 L2 L3 3 B 8 lb-in C 2 T D Switch Rating (Amps) 400 E 600 F Fuse Rating (Amps/Volts) Fuse Class Trailer Fuse Block Catalog Number Fuse Clip Catalog Number V (inches) 200A, 250V H 1494V-FS400 1401-N45 200A, 250V R 1494V-FS400 1401-N54 200A, 600V H 1494V-FS400 Q R S T* Z (inches) Fuse Block Mounting Screw Fuse Block Mtg. Screw Torque (lb-ins.) Fuse Clip Mtg. Screw Torque (lb-ins.) Lug to Terminal Torque (lb-ins.) Wire to Lug Torque (lb-ins.) Term Screw or Stud AA (inches) BB (inches) CC (inches) 325 3-3/16 2-13/16 3 325 3-3/16 2-13/16 3 275 325 --- --- ----- X (inches) Y (inches) 3/16 6-3/4 1-17/32 3-15/16 5/16-18 90-110 20 275 3/16 6-3/4 1-17/32 3-15/16 5/16-18 90-110 20 275 1401-N45 3/16 6-3/4 4-1/32 3-61/64 5/16-18 90-110 20 200A, 600V R 1494V-FS400 1401-N54 3/16 6-3/4 4-1/32 3-61/64 5/16-18 90-110 20 275 325 200A, 600V J 1494V-FS400 1401-N45 3/16 6-3/4 29/32 3-15/16 5/16-18 90-110 20 275 325 400A, 250V H 1494V-FS400 1401-N46 3/16 6-3/4 2-11/16 3-15/16 5/16-18 90-110 30 275 400A, 250V R 1494V-FS400 1401-N55 3/16 6-3/4 2-11/16 3-15/16 5/16-18 90-110 30 275 --- --- 3-3/16 2-13/16 3 325 --- --- --- 325 --- --- --- --- --- 1/2-13 400A, 600V H 1494V-FS400 1401-N46 3/16 6-3/4 5-11/16 3-15/16 5/16-18 90-110 30 275 325 --- 400A, 600V J 1494V-FS400 1401-N46 3/16 6-3/4 1-3/16 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 400A, 600V R 1494V-FS400 1401-N55 3/16 6-3/4 5-11/16 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 400A, 250V H 1494V-FS400 1401-N46 23/64 6-3/4 1-3/4 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 400A, 250V R 1494V-FS400 1401-N55 23/64 6-3/4 1-3/4 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 400A, 600V H 1494V-FS400 1401-N46 23/64 6-3/4 4-1/4 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 400A, 600V J 1494V-FS400 1401-N46 23/64 6-3/4 1-3/32 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 400A, 600V R 1494V-FS400 1401-N55 23/64 6-3/4 4-1/4 3-15/16 5/16-18 90-110 30 275 325 --- --- --- 600A, 250V H 1491-N621 (1) --- --- --- --- 5/16-18 60 --- 275 325 --- --- --- 600A, 250V R 1491-R621 (1) --- --- --- --- 5/16-18 60 --- 275 325 --- --- --- 600A, 600V H 1491-N621 (1) --- --- --- --- 5/16-18 60 --- 275 325 --- --- --- 600A, 600V J 1494V-FS600 (2) 23/64 6-3/4 4-13/32 3-15/16 5/16-18 90-110 225 275 325 --- --- --- 600A, 600V R 1491-R621 (1) --- --- --- --- 5/16-18 60 --- 275 325 --- --- --- 1/2-13 * When lug kits 1494R-N10 & 1494R-N11 are used. (5) G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL AUTOMATION, INC. OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL AUTOMATION, INC. (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 5 OF 8 42052-073 B-vertical.ai 1 2 3 4 5 6 7 8 A Connecting Rod Installation 1 N Enclosure Working Depth (Flange to Mounting Plate) Connecting Rod Catalog Number Standard Extended "N" Min. Max. 1494V-RB1 9" 9-1/4" 1494V-RB2 9" 23" N - 3" B Front Right Hand Operation 2 a) Install connecting rod into the support rod bracket and thread in clockwise (5) full turns b) Install connecting rod into the drive bar mechanism and thread in clockwise (9) full turns C 3 a) Place the disconnect handle in the "OFF" position. Attach the end of the connecting rod to the primary link of the handle with two 1/4-20 x 1/2" slotted head screw assemblies and tighten to 40 lb-in torque. b) Attach the second connecting rod to the top of the spring bracket with two 1/4-20 x 1/2" slotted head screw assemblies and tighten to 40 lb-in torque. c) Attach the two springs to the mechanism as shown below: Spring Bracket Support Rod Bracket Connecting Link D Drive Mechanism Connecting Rod Adjustment Procedure 4 "ON" Position E 5 "OFF" Position a) Move disconnect handle to the "ON" position. b) If switch does not fully close, return handle to "OFF" position. c) Loosen and remove the two 1/4-20 slotted hex head screw assemblies that hold the connecting rod to the connecting link. d) Turn connecting rod counter-clockwise (1) full turn. e) Re-assemble the two 1/4-20 hex head assemblies and tighten to 40 lb-in and re-test. f) Repeat 4a - 4e as necessary. g) Move disconnect handle to the "OFF" position. h) If switch does not fully open, return handle to "ON" position. j) Loosen and remove the two 1/4-20 slotted hex head screw assemblies that hold the connecting rod to the connecting link. k) Turn connecting rod clockwise (1) full turn. l) Re-assemble the two 1/4-20 hex head assemblies and tighten to 40 lb-in and re-test. m) Repeat 5g - 5l as necessary. F (6) G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL AUTOMATION, INC. OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL AUTOMATION, INC. (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 6 OF 8 42052-073 B-vertical.ai 1 2 3 4 5 6 7 8 A Left Hand Operation 6 a) Install connecting rod into the support rod bracket and thread in clockwise (5) full turns b) Install connecting rod into the drive bar mechanism and thread in clockwise (9) full turns 7 a) Place the disconnect handle in the "ON" position. Attach the end of the connecting rod to the primary link of the handle with two 1/4-20 x 1/2" slotted head screw assemblies and tighten to 40 lb-in torque. b) Attach the second connecting rod to the top of the spring bracket with two 1/4-20 x 1/2" slotted head screw assemblies and tighten to 40 lb-in torque. c) Attach the two springs to the mechanism as shown below: B Spring Bracket Support Rod Bracket Connecting Link Drive Mechanism C Connecting Rod Adjustment Procedure 8 "ON" Position 9 "OFF" Position a) Move disconnect handle to the "ON" position. b) If switch does not fully close, return handle to "OFF" position. c) Loosen and remove the two 1/4-20 slotted hex head screw assemblies that hold the connecting rod to the connecting link. d) Turn connecting rod counter-clockwise (1) full turn. e) Re-assemble the two 1/4-20 hex head assemblies and tighten to 40 lb-in and re-test. f) Repeat 8a - 8e as necessary. D g) Move disconnect handle to the "OFF" position. h) If switch does not fully open, return handle to "ON" position. j) Loosen and remove the two 1/4-20 slotted hex head screw assemblies that hold the connecting rod to the connecting link. k) Turn connecting rod clockwise (1) full turn. l) Re-assemble the two 1/4-20 hex head assemblies and tighten to 40 lb-in and re-test. m) Repeat 9g - 9l as necessary. Auxiliary Contact Installation 1 2 Auxiliary Contact Adapter 595-N1 L1 L2 E L3 Auxiliary Contact 595-A, 595-B 40 lb-in F (7) G REFERENCE REVISION AUTHORIZATION 1 1006259 2 1025456 DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL AUTOMATION, INC. OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL AUTOMATION, INC. (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 7 OF 8 42052-073 B-vertical.ai 1 2 3 4 5 6 7 8 Fuse Cover Installation A 12 B 2 3 C Removal D 3 1 E 2 42052-073-01 (3) F Printed in U.S.A. -01 G 3 PART CHG. NO. CHAR. TWO SIDES PRINTED BODY STOCK WHITE BODY INK BLACK MATERIAL 1 1006259 2 1025456 4-1/4" W x 5-1/2" H FLAT FOLD SIZE REFERENCE REVISION AUTHORIZATION 17" W x 11" H DIMENSIONS APPLY BEFORE SURFACE TREATMENT THIS DRAWING IS THE PROPERTY OF ROCKWELL AUTOMATION, INC. OR ITS SUBSIDIARIES AND MAY NOT BE COPIED, USED OR DISCLOSED FOR ANY PURPOSE EXCEPT AS AUTHORIZED IN WRITING BY ROCKWELL AUTOMATION, INC. (DIMENSIONS IN INCHES) TOLERANCES UNLESS OTHERWISE SPECIFIED .XX: N/A .XXX: N/A E - DOC DISCONNECT SWITCH AND ACCESSORY KITS INSTALLATION INSTRUCTION SHEET H LOCATION: MILWAUKEE, WISCONSIN U.S.A. --------------CHKD. --------------APPD. --------------DR. ANGLES: 42052 N/A DATE DATE DATE ------------------------------------------- DWG. SIZE B SHEET 8 OF 8 42052-073 B-vertical.ai ">

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Key features
- Variable Depth
- Flange Operated
- 400/600 Amp Switch Compatibility
- Customize Installation
- Auxiliary Contacts
- Right/Left Hand Operation
- Connecting Rod Adjustment
Frequently asked questions
This disconnect switch kit is compatible with both 400 and 600 amp switches, so you can choose the right one for your needs.
The kit is designed for enclosures with a working depth of 9'' to 9-1/4'' for the standard connecting rod or 9'' to 23'' for the extended connecting rod.
The kit includes three handle options: a 7-1/2'' painted metal handle, a 7-1/2'' molded handle, and a 7-1/2'' stainless steel handle. You can choose the best option based on your application's requirements.