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Summary of Contents for FEDERAL PACIFIC FUSEMATIC FP25-600
- Page 1 IN-810.9 TYPE FP LOW VOLTAGE POWER: CIRCUIT BREAKERS BREAKERS JUNE, 1971 FM-25400 CIRCUIT BREAKER P A C I F I C E L E C T R I C C O M P A N Y POWER EQUIPMENT SYSTEMS DIVISION Courtesy of NationalSwitchgear.com...
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Page 2: Table Of Contents
INSTRUCTION MANUAL TYPE FP LOW VOLTAGE POWER CIRCUIT BREAKERS Manually and Electrically Operated FUSEMATIC” BREAKER Type FP-25-600 FM-25-600 FM-50-1600 Type FP-50-1600 I N D E X PAGE Part 1 G e n e r a l Shipment, Receiving, Handling Storage _______________ Part 2 I n s p e c t i o n Installation... -
Page 3: General Description
For assistance in filing the claim, advise the area sales office of collapsible handle from Federal Pacific Electric Company, giving a full description vertical down position to vertical up position. Rotate of the damage, serial number of the breaker, delivering clockwise to positive stop. - Page 4 6. With maintenance closing handle in position and trip 3. Block the trip device, when supplied, to bar in tripped position, proceed to close breaker. Oper- prevent tripping. ating mechanism will now be trip free and contacts 4. Remove’ right and left hand accelerating springs (Fig. should not make.
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Page 5: Installation
SECTION II Inspection Electrically Operated Breakers stored mechanism is charged by fractional AC/DC universal motor. Identifi- cation, voltage ranges and requirements below. The stored mechanism charges in approximately one second. CHARGING MOTORS FOR FP BREAKERS STORED ENERGY MECHANISM Rating F u s e ’ Part D.C. -
Page 6: Maintenance
3. Make sure all retaining rings are in place. 15. To put circuit breaker into service push interlock to left, insert lever in bottom 4. Surfaces marked “F” should be lubricated by thin bole of the mechanism (Figure 8) and of “Conducto-Lube before assembly. -
Page 7: Accessories
PART 5 ACCESSORIES SHOWN AS ARC CONTACTS MAKE Figure 13 trip attachment is mounted directly above the The shunt SHOWN FULLY OPEN trip shaft. It is a non-adjustable intended for intermittent duty only, and its circuit should inter- rupted only by an auxiliary contact. SHUNT CLOSE STORED ENERGY MECHANISM Check latch engagement and adjust if necessary... - Page 8 AUXILIARY SWITCH (Figure 16) UNDERVOLTAGE ATTACHMENT (Figure 15) max. 6 stage, 12 contact is available. It mounted on top of the energy mechanism on the right hand of the breaker and is by the main contacts. All contacts are operated by factory adjusted provide “a”...
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Page 9: Part 6 Overcurrent Trip Devices
PART 6 OVERCURRENT TRIP DEVICES The trip coils will operate from 630 volts down to 24 volts. Each coil, when energized, releases a spring loaded plunger GENERAL DESCRIPTION which trips and locks the circuit breaker in the “TRIP FREE,” (Open) position. The plunger(s) which has been The direct acting series coils and magnet assemblies pro- released indicates which fuse(s) have blown. - Page 10 The circuit breakers are shipped the trip devices in- The tension in the coupling spring determines the current stalled and properly adjusted. It is only necessary to keep at which the dash pot will be mechanically by-passed. This is the instantaneous pickup adjustment. The high range the devices reasonably clean.
- Page 11 PART 7 WIRING DIAGRAMS DEFINITION OF SYMBOLS C o n t r o l s w i t c h Bell alarm switch B phase fuse trip coil Power fuse C p h a s e f u s e t r i p c o i l Undervoltage device Closing release coil Main power circuit...
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Page 12: Part 8 Recommended Spare Parts
PART RECOMMENDED SPARE PARTS Description No. Reg. FP.25.600 1151.9986 Moving arcing contacts 1151.9939 1151.9937 Upper stud assembly 1151.9354 Main Stationary contact assembly 1151-9088 1152.9354 Leading contacts 1151-0632 Cluster assembly Arc Chutes SHUNT CLOSE Mounting Ref. Assembly No. Voltage A C 4 8 V D C 1100~6034 230V AC 230V DC SHUNT TRIP...
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