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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.
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 create) and having a detailed knowledge of
circuit breakers.
Disassembly activites must be performed in an ergonomic workspace able to ensure protection of per-
sons demanded to perform disassembly activities.
Applicable national legislation and international standards in force at the time of disassembly of circuit
breakers must be taken into account in addition to prescriptions illustrated in this document.
ABB declines any responsibility for injury to people or damage to property resulting from a failure to
comply with the instructions set out in this document and with any applicable safety standard.
3. PERSONAL PROTECTIVE EQUIMENT (PPE)
When performing disassembly, following safety Personal Protective Equipment (PPE) must be worn:
Gloves
Glasses
4. TOOLS
Disassembly operations require the use of tools (e.g. screwdriver, torx key, pliers, ...); tools to be used
are specified inside each phase of the disassembly process (see Chapter 6).
Safety shoes
Protective clothes
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