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ABB TMAX XT XT6 ELECTRONIC Instruction Handbook Manual
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ABB TMAX XT XT6 ELECTRONIC Instruction Handbook Manual

ABB TMAX XT XT6 ELECTRONIC Instruction Handbook Manual

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INSTRUCTION HANDBOOK
1SDH002300A1001 - ECN000285442
TMAX XT XT6 ELECTRONIC
Disassembly instructions

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Summary of Contents for ABB TMAX XT XT6 ELECTRONIC

  • Page 1 — INSTRUCTION HANDBOOK 1SDH002300A1001 - ECN000285442 TMAX XT XT6 ELECTRONIC Disassembly instructions...

  • Page 3: Safety Notes

    Disassembly instruction tmaX Xt Xt6 electronic 1. SCOPE Scope of this document is to illustrate the step-by-step disassembly process of ABB SACE Tmax XT XT6 moulded case circuit breaker equipped with an electronic trip unit (type Ekip DIP LS/I). Document is focused on Tmax XT XT6 3p IEC version, anyway it allows to cover other versions of Tmax XT XT6 circuit breaker equipped with an electronic trip unit with just few slight differences to be taken into account.

  • Page 4: Disassembly Process

    INSTRUCTION HANDBOOK 5. SEPARATE TREATMENT Table below lists parts requiring a separate treatment adding information about part location inside circuit breakers and related quantity. Description Position inside circuit breaker Quantity Cap kits In correspondence of circuit breaker connection terminals Plugs In correspondence of circuit breaker upper connection terminals AUE lever group Mounted at the left of the toggle...
  • Page 5 Disassembly instruction tmaX Xt Xt6 electronic 6.1 PHASE 1 – CAP KITS Tools Actions to be performed Allen key Insert the flat screwdriver as shown in the By means of the allen key remove the screws picture and unhook the cap kits and their plugs connected with the cap kits.
  • Page 6 INSTRUCTION HANDBOOK 6.2 PHASE 2 – FRONTAL Actions to be performed Tools Cross screwdriver By means of the flat screwdriver push the test Insert the flat screwdriver as shown in the button in order to bring the circuit breaker in picture and slightly push the screwdriver as trip position.
  • Page 7 Disassembly instruction tmaX Xt Xt6 electronic Manually remove the upper and the lower front covers. Disassembled parts • 1 aesthetic front cover (Plastic) • 6 screws (Metal) • 1 upper front cover (Plastic) • 1 lower front cover (Plastic)
  • Page 8 INSTRUCTION HANDBOOK 6.3 PHASE 3 – TRIP UNIT Actions to be performed Tools Allen key By means of the allen key unscrew the 6 screws By means of the cross screwdriver unscrew fixing the trip unit to the breaking part. the 2 screw located in the bottom part of the circuit breaker fixing the trip unit to the breaking part.
  • Page 9 Disassembly instruction tmaX Xt Xt6 electronic 6.4 PHASE 4 – BREAKING PART COVER Actions to be performed Tools Cross screwdriver By means of the cross screwdriver unscrew the Manually remove the 2 screws and the left and 2 screws fixing the left and the right YO and YU the right YO and YU levers. levers to the breaking part. Torx key No. 25...
  • Page 10 INSTRUCTION HANDBOOK By means of the pliers remove the spring By means of the torx key unscrew the 9 screws mounted inside the AUE lever group. fixing the breaking part cover to the breaking part main structure. Manually remove the breaking part cover. By means of the cross screwdriver unscrew the 4 screws fixing the right base accessory to the breaking part.
  • Page 11 Disassembly instruction tmaX Xt Xt6 electronic Manually remove the right base accessory. Manually bring the trip test rod and rotate it of 90° anticlockwise and the trip test button automatically will separate from the right base accessory. Manually separate the trip test rod from its By means of the cross screwdriver unscrew spring.
  • Page 12 INSTRUCTION HANDBOOK Manually remove the left base group. By means of the pliers remove the 3 grids located in the upper part of the breaking part cover. By means of the flat screwdriver remove the 2 By means of the cutter start removing the shock absorbers located at both sides of the label located on the breaking part cover and breaking part cover.
  • Page 13 Disassembly instruction tmaX Xt Xt6 electronic Disassembled parts • 2 + 2 + 9 + 4 + 3 screws (Metal) • 2 YO and YU levers (Metal) • 1 AUE lever group (Plastic and Metal) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 + 1 springs (Metal) • 1 right base accessory (Plastic and Metal) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 trip test rod (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 left base group (Plastic and Metal) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 3 grids (Metal)
  • Page 14 INSTRUCTION HANDBOOK 6.5 PHASE 5 – TOGGLE AND ARCHING CHAMBERS Actions to be performed Tools Cross screwdriver By means of the cross screwdriver unscrew the Manually remove the toggle extension. screw fixing the toggle extension to the toggle holder. Pliers Manually remove the toggle protection and the By means of the pliers remove the toggle base.
  • Page 15 Disassembly instruction tmaX Xt Xt6 electronic Manually remove the arching chambers. Disassembled parts • 1 screw (Metal) • 1 toggle extension (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 toggle protection (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 toggle holder (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 1 toggle base (Plastic) • 3 arching chambers (Metal and GP0-3)
  • Page 16 INSTRUCTION HANDBOOK 6.6 PHASE 6 – MOBILE CONTACTS ASSEMBLY AND OPERATING MECHANISM Actions to be performed Tools Cross screwdriver By means of the cross screwdriver unscrew By means of the flat screwdriver separate the the 6 screws fixing the upper rear plate and upper rear plate from the breaking part main Flat screwdriver the lower rear plate to the breaking part main...
  • Page 17 Disassembly instruction tmaX Xt Xt6 electronic By means of the flat screwdriver clean from By means of the tube key unscrew the 4 nuts silicone rear part of the breaking part main located in the rear part of the breaking part structure.
  • Page 18 INSTRUCTION HANDBOOK Manually pull the shaft as indicated by the Lift the breaking part main structure and let arrow and by means of the flat screwdriver the I3 assemblies separate from the breaking remove the 3 benzings. part main structure by gravity. By gravity let the plates fall down from the By means of the allen key unscrew the 3 screws breaking part main structure.
  • Page 19 Disassembly instruction tmaX Xt Xt6 electronic Manually remove the S51 and SR levers Manually remove the 2 supports mounted on mounted on the mobile contacts assembly. the mobile contacts assembly. Disassembled parts • 6 + 2 + 6 + 3 screws (Metal) • 1 rear upper plate (Plastic) • 1 rear lower plate (Plastic) • 1 protection plate (Plastic) • 4 + 3 nuts (Metal) • 4 + 2 + 3 washers (Metal) • 3 dowels (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated flame retardants) • 3 benzings (Metal) • 3 I3 assemblies (Metal)
  • Page 20 INSTRUCTION HANDBOOK 6.7 PHASE 7 – BREAKING PART CASE Actions to be performed Tools Torx key By means of the torx key unscrew the 3 screws Manually remove the 3 arc runners. fixing the arc runners to the breaking part case.
  • Page 21 Disassembly instruction tmaX Xt Xt6 electronic Manually pull the main fixed contacts as By means of the cutter start removing the label indicated by the arrow, slightly lift them and located on side of the circuit breaker case and after manually complete the removal.
  • Page 22 INSTRUCTION HANDBOOK 6.8 PHASE 8 – TRIP UNIT FRONTAL Actions to be performed Tools Torx key Manually disassemble the transparent By means of the cutter start removing the label protection from the trip unit frontal. with protection functions settings located on No.
  • Page 23 Disassembly instruction tmaX Xt Xt6 electronic Manually remove the trip unit frontal. • 1 trip unit transparent protection (Plastic) • 2 labels (Adhesive paper) • 2 screws (Metal) • 1 trip unit frontal (Plastic)
  • Page 24 INSTRUCTION HANDBOOK 6.9 PHASE 9 – TRIP UNIT MAIN STRUCTURE Actions to be performed Tools Torx key Manually remove the 3 covers mounted over By means of the torx key (size 8) unscrew the 2 the sensors. screws fixing the sensors cover to the trip unit No. 8 main structure. Flat screwdriver Cross screwdriver Pliers...
  • Page 25 Disassembly instruction tmaX Xt Xt6 electronic Manually remove the trip coil. Manually remove the trip coil protection located in the trip coil housing. Manually pull and remove the printed circuit By means of the flat screwdriver slightly push board mounted in the trip unit main structure.
  • Page 26 INSTRUCTION HANDBOOK By means of the torx key (size 20) unscrew the Manually remove the 3 lower fixed contacts. 6 screws located in the bottom part of the trip unit main structure. Manually remove the 3 plates.
  • Page 27 Disassembly instruction tmaX Xt Xt6 electronic Disassembled parts • 3 covers (Silicone) • 2 + 1 + 6 screws (Metal) • 1 sensors cover (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated • 1 trip coil (Plastic, Metal and Magnets) SEPARATE TREATMENT (Megnets) • 1 trip coil protection (Metal) • 1 printed circuit board (Plastic, Metal and Electronic components) SEPARATE TREATMENT (Printed circuit board) • 1 sensors assembly (Plastic, Metal and Mixture) SEPARATE TREATMENT (Printed circuit board) • 2 sensors joints (Plastic) SEPARATE TREATMENT (Thermoplastics containing brominated • 3 fixed contacts (Metal) • 3 plates (Metal) • 1 trip unit case (Plastic) 7.
  • Page 28 — 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 © Copyright 2022 ABB. All rights reserved. Specifications subject to change without notice.