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ABB Sace TMAX XT XT4 ELECTRONIC, Instruction Handbook Manual

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ABB Sace TMAX XT XT4 ELECTRONIC Instruction Handbook Manual Download Page 24

24

INSTRUCTION HANDBOOK

6.12 PHASE 12 – PRINTED CIRCUIT BOARD, CURRENT SENSORS, TRIP 

COIL AND TRIP UNIT

Actions to be performed

57

 

By means of the torx key unscrew the 3 screws 

located in the bottom part of the trip unit.

61

 

Manually separate the 3 current sensors from 

the printed circuit board.

62

 

Manually separate the trip coil from the printed 

circuit board.

59

 

Manually lift the printed circuit board.

58

 

Manually lift the protection cover over the 

printed circuit board.

60

 

Manually lift the current sensors and after 

complete the removal of the printed circuit 

board and of the 3 current sensors together 

with their plastic supports and the trip coil.

Tools

Torx key

No. 8

Summary of Contents for Sace TMAX XT XT4 ELECTRONIC

Page 1: ... INSTRUCTION HANDBOOK 1SDH002296A1001 ECN000285442 TMAX XT XT4 ELECTRONIC Disassembly instructions ...

Page 2: ......

Page 3: ... must be worn 2 SAFETY NOTES Before proceeding with any disassembly operation it s mandatory to put the circuit breaker in open position Disassembly operations of circuit breakers must be performed by qualified and skilled personnel in the electrical field IEV 195 04 01 person with relevant education and experience to enable him or her to perceive risks and to avoid hazards which electricity can c...

Page 4: ...breaking part 2 Cover protection In the trip unit over printed circuit board 1 Printed Circuit Board In the trip unit 1 Sensors In the trip unit 3 Trip coil In the trip unit 1 6 DISASSEMBLY PROCESS Circuit breakers disassembly process is constituted by a sequence of operations to be performed on products after their dismounting from original installation For each phase following information are pr...

Page 5: ...lastic and Metal SEPARATE TREATMENT Thermoplastics containing brominated flame retardants 6 1 PHASE 1 CAP KITS 1 By means of the allen key remove the screws connected with the cap kits 2 Insert the flat screwdriver as shown in Picture 2 and push it up in order to remove the cap kits Actions to be performed Disassembled parts 6mm ...

Page 6: ... screwdriver push the trip test button 6 Manually lift a little bit the breaking part frontal and complete the removal pulling the breaking part frontal as indicated by the arrow 4 By means of the cross screwdriver unscrew the 2 screws located in the lower part of the breaking part frontal fixing the breaking part frontal to the circuit breaker main structure Actions to be performed Applicable to ...

Page 7: ...y instruction TMAX XT XT4 ELECTRONIC 7 By means of the flat screwdriver push up the reset test rod and manually remove it Disassembled parts 2 2 screws Metal 1 breaking part frontal Plastic 1 reset test rod Plastic ...

Page 8: ... 3 PHASE 3 TOGGLE AND ITS PROTECTION 8 Manually lift the toggle and its protection and after separate the toggle from its protection Actions to be performed Disassembled parts 1 toggle Plastic 1 toggle protection Plastic Tools ...

Page 9: ...t main structure 11 By means of the cutter start removing the label located on the trip unit frontal and manually complete the operation 10 Manually disasseble the transparent protection from the trip unit frontal 12 By means of the torx key unscrew the 3 screws fixing the trip unit to the breaking part Actions to be performed Tools Cross screwdriver Torx key Cutter No 15 ...

Page 10: ...ow and after lift the trip unit in order to complete the removal Disassembled parts 2 screws Metal 1 trip unit frontal Plastic 1 trip unit transparent protection Plastic 1 label Adhesive paper 1 trip unit Plastic and Metal Trip unit will be furtherly disassembled see Phases 6 11 and 6 12 ...

Page 11: ...lat screwdriver lift the plug located in the left hole of the breaking part and after manually complete the removal of the plug 17 By means of the flat screwdriver lift the white plastic lever located in the upper part of the breaking part and after manually complete the removal of the white plastic lever Disassembled parts 1 plug Plastic SEPARATE TREATMENT Thermoplastics containing brominated fla...

Page 12: ...COVER 18 By means of the cross screwdriver unscrew the 2 screws fixing the rear cover to the breaking part 19 Manually remove the rear cover Actions to be performed Disassembled parts 2 screws Metal 1 rear cover Plastic Cross screwdriver Tools ...

Page 13: ...o be performed 20 By means of the torx key size 20 unscrew the 4 screws located in the back part of the breaking part 21 By means of the flat screwdriver unhook the 2 springs mounted on the operating mechanism 23 By means of the pliers remove the spring mounted in the middle of the operating mechanism 22 Manually lift the operating mechanism and remove it ...

Page 14: ...hanism pulling it as indicated by the arrow 25 By means of the flat screwdriver remove the metal plate mounted on the tripping shaft Disassembled parts 4 screws Metal 1 operating mechanism Plastic and Metal SEPARATE TREATMENT Thermoplastics containing brominated flame retardants 1 2 springs Metal 1 tripping shaft Plastic SEPARATE TREATMENT Thermoplastics containing brominated flame retardants 1 pl...

Page 15: ... corners of the breaking part cover 29 Manually lift the breaking part cover 28 By means of the cross screwdriver uncrew the 6 screws fixing the breaking part cover to the breaking part base 30 Manually lift the motor operator lever located between the hole previously hosting the operating mechanism and after complete removal operation Torx key No 8 For circuit breakers with N S H and L breaking c...

Page 16: ...reaking part 32 By means of the flat screwdriver slightly push on the right the the trip lever mounted in the bottom part of the breaking part and then lift the lever in order to complete the removal 34 By means of the cross screwdriver unscrew the 3 screws located in the bottom part of the breaking part the terminals connections between the breaking part and the trip unit will fall from the break...

Page 17: ...screwdriver remove the metal plate from the plastic part constituting terminals connections Disassembled parts 2 6 3 screws Metal 1 breaking part cover Plastic 1 motor operator lever Metal 1 hood Rubber 1 trip lever Plastic SEPARATE TREATMENT Thermoplastics containing brominated flame retardants 3 plugs Rubber 3 terminals connections Plastic and Metal 1 open close lever Plastic SEPARATE TREATMENT ...

Page 18: ...moving contacts assembly 39 Manually lift the moving contacts assembly 41 By means of the pliers remove the 2 plugs mounted on the breaking part base 6 9 PHASE 9 MOVING CONTACTS AND ARCHING CHAMBERS Actions to be performed Tools Flat screwdriver Pliers Applicable to circuit breakers with V and X breaking capacities only ...

Page 19: ...ers from their supports Disassembled parts Note Arching chambers of circuit breakers with N S H and L breaking capacities are made by an unique assembly and by means of a flat screwdriver plates can be removed from the arching chamber case 1 block lever Metal 1 moving contacts assembly Plastic and Metal 4 plugs Plastic 6 arching chambers Plastic and Metal 6 arching chambers supports Plastic and Me...

Page 20: ...part base 46 Manually separate the plastic part from the metal part constituting the fixed contacts 45 Manually push the fixed contacts as indicated by the arrow 47 By means of the flat screwdriver remove the metal plate mounted on the the plastic part constituting the fixed contacts Torx key No 20 To unscrew the 3 bottom screws mounted on circuit breakers with breaking capacities N S H and L a to...

Page 21: ...lete the removal of the case side protections Disassembled parts Applicable to circuit breakers with V and X breaking capacities only Applicable to circuit breakers with V and X breaking capacities only 1 breaking part base Plastic 6 2 screws Metal 3 fixed contacts Plastic and Metal 3 plates Metal 2 case side protections Plastic SEPARATE TREATMENT Thermoplastics containing brominated flame retarda...

Page 22: ...d the I3 group 51 By means of the pliers remove the spring mounted on the I3 assembly 53 Manually remove the 3 screws located on the top of the trip unit 54 By means of the torx key unscrew the 4 screws fixing the trip unit cover to the trip unit 55 By means of the flat screwdriver lift the top cover of the trip unit and manually complete the removal Tools Flat screwdriver Pliers Torx key No 8 ...

Page 23: ...AX XT XT4 ELECTRONIC 56 Manually remove the wave spring located over the trip coil Disassembled parts 3 4 screws Metal 3 springs Metal 3 I3 groups Metal 3 I3 supports Plastic 1 trip unit cover Plastic and Metal 1 wave spring Metal ...

Page 24: ...ate the 3 current sensors from the printed circuit board 62 Manually separate the trip coil from the printed circuit board 59 Manually lift the printed circuit board 58 Manually lift the protection cover over the printed circuit board 60 Manually lift the current sensors and after complete the removal of the printed circuit board and of the 3 current sensors together with their plastic supports an...

Page 25: ...astic Metal and Mixture SEPARATE TREATMENT Thermoplastics containing brominated flame retardants 3 supports plastic 1 trip coil Plastic Metal and Magnets SEPARATE TREATMENT Magnets 1 wave spring Metal 1 trip unit base Plastic 63 Manually remove the wave spring located in the hole previously hosting the trip coil 7 ENERGY CONSUMPTION FOR CIRCUIT BREAKERS DISASSEMBLY Since all disassembly operations...

Page 26: ...26 INSTRUCTION HANDBOOK ...

Page 27: ......

Page 28: ... Copyright 2022 ABB All rights reserved Specifications subject to change without notice ABB SACE A division of ABB S p A L V Breakers Via Pescaria 5 24123 Bergamo Italy Phone 39 035 395 111 Fax 39 035 395 306 433 abb it lowvoltage ...

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