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MERCURY SWITCH TO MICROSWITCH RETROFIT KIT KA349WE INSTALLATION INSTRUCTIONS

  MN280022EN   October 2015

5.  Route switch SW2 cable along frame wall and pull it 

through the cable exit hole to terminal block (Figures 4 

and 10). Do not attach cable leads to terminal block at 

this time.

6.  Use the previously removed hardware and plastic cable 

retainers to secure cable to frame (Figures 10 and 16).

Figure 15.  Plastic cable retainer assembly.

Completing switch SW2 assembly

Matching original orientation, reinstall parts removed.
1.  Reinstall pin, spacers, and two, small lower springs 

(Figure 17). (Vacuum unit without spacers shown. 

Oilinterrupting units have two spacers. )

otee:

N

If no tool is available to grab springs, place a piece 

of strong string through spring’s connecting loop and 

pull spring into place. Once spring is connected, pull 

string clear.

Figure 16.  Reinstall springs and retaining pins.

2.  Reinstall retaining pin, new C rings (Item 22), and small 

upper spring.

3.  Slide spring retaining pin through the two large springs, 

spacers, and new C rings (Item 21). Tighten C rings.

4.  With H bracket disengaged, gently push down on 

switch SW2 until hearing a click as switch contact 

encounters cam and closes (Figure 18).

Figure 17.  Side view, switch SW2 assembled to 

mounting plate.

5.  Hold switch in place where click is heard and tighten 

retaining hardware. Take care not to over tighten and 

damage switch.

6.  Recheck all work. Engage and disengage the H bracket 

using the following directions:

A. Turn the handle shaft clockwise with a pair of pliers 

to engage and latch the H bracket.

B. Turn the handle shaft counterclockwise with a pair of 

pliers to disengage the H bracket.

Make sure mechanism does not encounter interference 

during movement. Adjust spacers as needed to eliminate 

any interference.

Gently push down for 

final switch adjustment

Approximate placement of 

microswitch Stop Nuts: Torque to 

13-15 in-lbs after adjustment

Cable Pass Through

Mounting holes, plate to frame

Two large springs attached to spring 

retaining pin

Spring retaining pin

Upper small spring, 

attach here

Spacers

Pin

Handle shaft

H bracket

Lower two small springs, attach here

Summary of Contents for KA349WE

Page 1: ...Mercury switch to microswitch retrofit kit KA349WE installation instructions COOPER POWER SERIES Reclosers MN280022EN Effective October 2015 Supersedes S280 40 10 April 2014...

Page 2: ...FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON THE CONTE...

Page 3: ...duction 1 Handling and storage 1 Quality standards 1 Additional information 1 INSTALLATION Reposition contact bar 3 Disconnect terminal wires 3 Remove microswitch switch SW1 4 Remove mercury switch SW...

Page 4: ...hen working around high voltage lines and equipment and support our Safety For Life mission Safety information DANGER Hazardous voltage Contact with hazardous voltage will cause death or severe person...

Page 5: ...the carton for signs of damage Unpack the kit and inspect it thoroughly for damage incurred during shipment If damage is discovered file a claim with the carrier immediately Handling and storage Be ca...

Page 6: ...SW1 Main Shaft Grommeted Cable Exit Hole and Terminal Block Rotary Solenoid Plastic Cable Retainer Switch SW2 Handle Shaft Yellow handle manual trip shaft Contact Position Indicator Shaft H Bracket S...

Page 7: ...at points indicated in Figure 2 1 Remove C rings from contact bar retainer pin at trip solenoid end of mechanism and discard 2 Note position of any washers then remove and save them 3 Slide pin aside...

Page 8: ...ordance with all federal state and locally approved mercury disposal guidelines and regulations Figure 6 Removing switch SW3 from main shaft Figure 7 Springs and retaining pins Remove mercury switch S...

Page 9: ...lations 10 Scribe new handle shaft assembly Item 3 to mark orientation of cam and lever to shaft and shaft to frame Carefully remove roll pins cam and lever from new shaft Figure 9 Figure 10 Switch SW...

Page 10: ...itch SW2 4 Place cable over spacer near cable hole then securely tighten assembly to frame Use the two smaller spacers Item 4 machine screws Item 5 and self locking elastic stop nuts Item 6 to attach...

Page 11: ...ing retaining pin through the two large springs spacers and new C rings Item 21 Tighten C rings 4 With H bracket disengaged gently push down on switch SW2 until hearing a click as switch contact encou...

Page 12: ...ave roll pin 7 Slide main shaft aside to gain clearance for removing old microswitch cam Note orientation of cam on shaft Remove and discard cam Install new cam for SW1 1 Slide new switch cam Item 15...

Page 13: ...new cable retainer in the same position used by the old one 5 At the terminal block make the following connections refer to Figures 5 and 27 for terminal identification A Switch SW1 connect leads to...

Page 14: ...2 10 KA30090019 ALUMINUM SPACER 2 11 7215 15 110137A SLOTTED RD HD MACH SCR 10 24 UNC 2A 2 12 KA20200013 ELASTIC STOP NUT SS 10 24 2 13 9011 32 010000A EXTERNAL TOOTH LOCKWASHER 10 PL F 2 14 KA2048050...

Page 15: ...t review its positioning If positioned correctly review switch terminal and terminal block connections If all connections are correct check switch to make sure it actually opens and closes as its arm...

Page 16: ...ited States Eaton com cooperpowerseries 2015 Eaton All Rights Reserved Printed in USA Publication No MN280022EN KA2048 506 Rev 04 Eaton is a registered trademark All trademarks are property of their r...

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