GE MicroVersaTrip Plus Installation Instructions Manual

THE BREAKER Trip Paddle Removal METAL BREAKER FRAMES Step 1. Remove the (2) screws holding each trip paddle to the common trip bar (Fig. 6 page 5). Step 2. Return the (2) screws on the left end of the trip bar that hold the trip bar rotation adjustment plate (Fig. 13). ADJUSTMENT PIATE Fig. 13. Trip Paddle Removal •::J V. 8 Courtesy of NationalSwitchgear.com ...

THE BREAKER LOAD TERMINAL BRACKET SCREWS Removal of the Old Trip Units METAL BREAKER FRAMES Step 1. Remove and discard the (2) load terminal bracket screws from the back of each trip unit housing. (Fig 14) Step 2. Remove and discard the (2 or 4) trip unit screws from the back of each trip unit housing. (Fig. 14) Step 3. Remove and discard the (2) load terminal screws on the top of each trip unit (Fig. 15). Discard the electromechanical trip units. Step 4. Separate the load terminal bracket from the old load terminal (Fig. 16). Discard the load termi- nal and the hardware, but save the bracket. TRIP UNIT SCREWS Fig. 14. Trip Unit ...

CONVERSION KIT %-l6 X 1" BOLT NEW LOAD TERMINAL Installing Phase Sensors (CT’s) METAL BREAKER FRAMES h.1'- Step 1. Mount the new copper load terminal provided in the insulated housing. Use the bracket removed in step 4 on page 9 (Fig. 17 ). The bracket is in- stalled on the bottom side of the load terminal. Use the (2) V\-20 x VA" screws with plain and lock washers, and the Vs-lb x T' bolt with a plain and lock washer for each phase. Step 2. Assemble the ”S” shaped steel bracket on the front of each housing placing a fiber barrier be- tween the bracket and the new load terminal (Fig. 19). Insert the (2) !4-20 x VA" and lo ...

CONVERSION KIT TOP 14-20 X VA" COPPER Installing Phase Sensors (CT’s) (Contfd) SLATE BREAKER FRAMES Step 1. Assemble the steel "S" bracket to the bottom side of the top copper Phase Sensor (CT) bus. Insert the (2) !/4-20 X VS" bolts with plain and lock wash- ers provided through the slots in the copper bus (Fig. 20). Tighten finger tight for now. Step 2. Assemble the spacer, CT and insulated barrier over the CT post on the new copper load terminal (Fig. 21). Hold the CT in place with the top cop- per bus and the %-16 x 1 !4" bolt, flat washer, and lock washer provided. Tighten the bolt finger tight for now. Step 3. Insert a f ...

CONVERSION KIT Installing Phase Sensors (CT’s) (Cont'd) SLATE BREAKER FRAMES /T> 5/l(rl8 X 1" BOLTS Step 4. Bolt each CT assembly to the contact arms in the front frame using the (2) /46-18 x 1” bolts with plain and lock washers provided per phase (Fig. 23). Step 5. Tighten the contact arm bolts to 100 in. lbs* (Fig. 24) * IMPORTANT NOTE: Steps designated by an (*) are critical electrical integrity connec- tions. They must be correctly tightened for proper operation. Failure to tighten properly will cause a breaker failure resulting in prop- erty damage or personal injury. Fig. 23. CT Assembly Installation . i Fig. 24. Cont ...

CONVERSION KIT Front and Back Frame Reassembly METAL BREAKER FRAMES Step 1. Use the (2) Me-18 xl ” bolts with plain and lock washers provided to fasten each CT assembly to the contact arms on the front frame (Fig. 25). Tighten the bolts to 100 in. lbs.* Step 2. Carefully reassemble the front and back frames. Use the hardware removed in steps 5 and 6 on page 5 to hold the frames together. Step 3. Return the two line terminal housings and fasten in place with the hardware removed in steps 3 and 4 on page 4 (Fig. 26). Step 4. Return the draw out interlock lever removed in step 2 on page 4. Step 5. Tighten the CT bolts inserted i ...

CONVERSION KIT Front and Back Frame Reassembly SLATE BREAKER FRAMES Step 1. Carefully place the front and back frames to- gether while guiding the new load terminals through the holes in the back frame (Fig. 28). Make certain that the fiber barriers installed in step 3 on page 11 are in proper position. Step 2. Return the frame bolts removed in step 6 on page 7 (Fig. 29). Step 3. Insert the (2) 14-20 x l7/6" screws with plain and lock washers provided through the holes in the slate back frame above the load terminals (Fig. 29). Step 4. Reassemble the load terminal bracket removed in step 3 on page 9. Use the (2) 14-20 x V/H" sc ...

CONVERSION KIT Front and Back Frame Reassembly (Cont’d) SLATE BREAKER FRAMES Step 5. Tighten the CT post bolts to 200 in. lbs.* (Fig. 31). Step 6. Tighten the "S" bracket bolts inserted in step 1 on page 11. * IMPORTANT NOTE: Steps designated by an (*) are critical electrical integrity connec- tions. They must be correctly tightened for proper operation. Failure to tighten properly will cause a breaker failure resulting in prop- erty damage or personal injury. Fig. 31. CT Bolt Torque 15 Courtesy of NationalSwitchgear.com ...

CONVERSION KIT FLUX SHIFTER MOUNTING HOLES Flux Shifter/Programmer Bracket Installation METAL BREAKER FRAMES Step 1. Install the new trip paddle on the right end of the common trip bar using the (2) 8-32 x %" screws with nuts and lock washers provided (Fig 32). Step 2. Insert the (2) 10-32 x !4" screws with the captive lock washers into the threaded holes in the right side of the breaker frame (Fig. 32 ). The screws will hold the flux shifter/programmer bracket in place. Step 3. Install the flux shifter/programmer bracket over the (2) screws inserted in Step 2 above (Fig. 33). The bracket is inserted in and lifted into place. S ...

CONVERSION KIT Flux Shifter/Programmer Bracket Installation (Cont’d) RESET ARM METAL BREAKER FRAMES STUD Step 5. Place the slot in the opposite end of the reset linkage over the bottom stud on the flux shifter reset arm. (Fig. 35). Use the nut and washer al- ready assembled on the stud to hold it in place. Step 6. Thread the assembly support nut against the right side of the mechanism until the programmer bracket is square with the breaker frame (Fig. 36). Lock the support nut with the locking nut. Step 7. Once the flux shifter and trip paddle are in- stalled, the following adjustment must be made: With the breaker in the CLO ...

CONVERSION KIT m Flux Shifter/Programmer Bracket Installation (Cont’d) 4* SLATE BREAKER FRAMES Step 1. Install the new trip paddle provided on the com- mon trip bar on the right end. Use the 10-32 x 1” screw, nut, and lock washer to fasten the trip paddle (Fig. 37). Step 2. Start the (2) 10-32 x Zi" screws with captive lock washers into the right side of the frame (Fig. 37). The screws will hold the flux shifter assembly in place. Step 3. Install the flux shifter/programmer bracket as- sembly over the two (2) screws. The assembly is held against the frame and lifted up into place (Fig. 39). P LE Fig. 37. Trip Paddle Install ...

CONVERSION KIT CROSSBAR Flux Shifter/Programmer Bracket Installation (Cont’d) SLATE BREAKER FRAMES Step 4. Place the end of the reset link with the !4" hole over the !4” pin on the end of the cross bar (Fig. 40 ). The notched edge is up. Use the plain washer and cotter pin provided to fasten the link. Step 5. The slot in the opposite end of the link is placed over the bottom stud on the flux shifter reset arm Use the nut and washer already assembled on the stud to hold in place (Fig. 41). Step 6. Place the slotted draw out interlock link removed in Step 2 on page 6 over the two posts on the front and back frames. Use the ex ...

CONVERSION KIT Flux Shifter/Programmer Bracket Installation (Cont’d) SLATE BREAKER FRAMES Step 9. Thread the assembly support nut against the right side of the mechanism until the programmer bracket is square with the breaker frame (Fig. 43). Lock the support nut with the locking nut. Step 10. Once the flux shifter and trip paddle are in- stalled, the following adjustment must be made: With the breaker in the CLOSED position, the gap between the trip paddle adjustment screw and the trip slide of the flux shifter should be ]/i6 of an inch. Use a lA" wrench or nut driver to ad- just the screw. It may help to gauge the air gap w ...