ABB Tmax XT Wiring Diagrams

Wiring diagrams

Information on how to read the diagrams

Shown

The diagrams are shown in the following conditions:

– fixed version circuit breaker, open;
– withdrawable or plug-in version circuit breaker, open and connected;
– contactor for starting the motor open;
– circuits de-energized;
– trip units not tripped;
– motor operator with springs charged.

The diagram shows a circuit breaker or a switch-disconnector in the withdrawable or plug-in version, but is also valid for fixed
version circuit breakers or switch-disconnectors.
For fixed version circuit breakers, auxiliary circuits are headed at terminal box XV: connectors J.. and XB.., XC.., XD.. and XE..
are not supplied.
For plug-in version circuit breakers, auxiliary circuits are headed at connectors XB.., XC.., XD.. and XE..: connectors J.. are not
supplied.
For withdrawable version circuit breakers, auxiliary circuits are headed at connectors J..: connectors XB.., XC.., XD.. and XE..

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are not supplied.

6/2 SACE Tmax XT UL/CSA | US Technical Catalog

Wiring diagrams

Graphic symbols (IEC 60617 and CEI 3-14 …3-26 Standards)

Thermal effect

Electromagnetic effect

Timing

Mechanical connection

Manual mechanical
operating mechanism
(general case)

Rotary handle operating
mechanism

Pushbutton operating
mechanism

Conductors with corded
cables (example two
conductors)

Connection of conductors

Terminal or clamp

Socket and plug
(female and male)

Resistor
(general symbol)

Resistor dependent on
the temperature

Motor
(general symbol)

Opening contact

Changeover contact with
momentary break

Closing position contact
(limit switch)

Opening position contact
(limit switch)

Changeover contact
with momentary break
(limit switch)

Contactor
(closing contact)

Power cut-off of switch­disconnector power with
automatic opening

Short adjustable time
delay characteristic

Overcurrent release with
short inverse adjustable
time delay characteristic

Overcurrent release with
long inverse adjustable
time delay characteristic

Overcurrent release for
earth fault with short
inverse time characteristic

Current relay for
unbalance between
phases

Residual current release

Relay for detecting lack
of phase in a three-phase
system

6

Key operating
mechanism

Cam operating
mechanism

Ground
(general symbol)

Converter separated
galvanically

Conductors in shielded
cable (example two
conductors)

Watt-hour meter

Three-phase asynchro­nous motor, with short­circuited rotor (cage)

Current transformer

Current transformer with pri­mary consisting of 4 passing
conductors and with wound
secondary, with socket

Closing contact

Voltmeter

Switch-disconnector

Control coil
(general symbol)

Thermal trip unit

Instantaneous overcurrent
release

Ammeter
Overcurrent release with

Relay for detecting
blocked rotor by means
of current measurement

Lamp, general symbol

Motor with excitation
in series

M

Brush

Wattmeter

US Technical Catalog | SACE Tmax XT UL/CSA 6/3

Wiring diagrams of the circuit breakers

Four-pole circuit breaker with thermal

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magnetic trip unit and RC Sel 200 or RC
B type residual current release

Three-pole fixed version circuit breaker
with current transformer on the neutral
conductor outside the circuit breaker

1SDC21084DF0001

1SDC21087DF0001

Four-pole circuit breaker with thermal
magnetic trip unit and
RC Sel residual current release

Three-pole or four-pole XT4
circuit breaker with Ekip E-LSIG
microprocessor based release

1SDC21085DF0001

1SDC21079GF0001

1SDC21086DF0001

Four-pole circuit breaker with
electronic trip unit and RC Sel
residual current release

1SDC21080GF0001

Fixed version three-pole XT4 circuit breaker
with Ekip E-LSIG with current transformer on
neutral conductor, external to circuit breaker

Diagram recommended for three-pole plug-in or
withdrawable version circuit breakers with current transformer
on the neutral conductor outside the circuit breaker

6/4 SACE Tmax XT UL/CSA | US Technical Catalog

1SDC21088DF0001

1SDC21081GF0001

Recommended diagram for plug-in or withdrawable version three-pole
circuit breakers with current transformer and voltage connection
on neutral conductor, external to circuit breaker

Description of figures

Fig. 47 = Current transformer circuit on the neutral conductor outside the circuit breaker (for plug-in or withdrawable version circuit

breaker).

Fig. 63 = Circuit of the voltage socket on the neutral conductor outside the circuit breaker (for Ekip E_LSIG type microprocessor-

based plug-in or withdrawable circuit breaker).

Notes

G) To remove the circuit breaker from a three-pole fixed version with a current transformer on the neutral conductor outside

the circuit breaker, the TI/N transformer terminals must be short-circuited.

Caption

= Diagram figure number
* = See the note indicated by the letter
J.. = Connectors for the auxiliary contacts of the withdrawable version circuit breaker; connectors and circuit breaker are

extracted simultaneously.
K51 = Electronic trip unit:
– overcurrent release type Ekip I, Ekip LS/I, Ekip N-LS/I, Ekip LSI, Ekip LSIG, Ekip E-LSIG
– of motor protection type Ekip M-LIU
K87 = Residual current release type RC Inst, RC Sel, RC Sel 200, RC B Type
Q = Main circuit breaker
S75I/1..4 = Contacts for electrical signaling of circuit breaker in the connected position (only provided with plug-in or withdrawable

version circuit breakers)
S75S/1-2 = Contacts for electrical signaling of circuit breaker in the racked-out position (only provided with withdrawable version

circuit breakers)
SD = Power supply switch-disconnector of the residual current release type RC Inst, RC Sel, RC Sel 200 or RC B Type
TI = Toroidal current transformer
TI/L1 = Current transformer placed on phase L1
TI/L2 = Current transformer placed on phase L2
TI/L3 = Current transformer placed on phase L3
TI/N = Current transformer placed on the neutral
V1 = Circuit breaker applications
X41 = Circuit connector for external neutral
XG-XH = Electronic trip unit connectors
XV = Terminal boxes of circuit breaker applications
YO1 = Opening solenoid of the microprocessor-based overcurrent release
YO2 = Opening solenoid of the residual current release

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US Technical Catalog | SACE Tmax XT UL/CSA 6/5

Wiring diagrams of the circuit breakers

1SDC21090DF0001

Three-pole or four-pole circuit breaker with
TMF or TMA thermal magnetic trip unit

Three-pole circuit breaker
with MCP (MA) magnetic trip unit

1SDC21089DF0001

1SDC21091DF0001

Three-pole or four-pole molded
case switch-disconnector

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Three-pole or four-pole circuit breaker
with Ekip LS/I electronic trip unit

1SDC21092DF0001

Three-pole or four-pole circuit breaker
with Ekip I, Ekip LSI or Ekip LSIG
electronic trip unit

1SDC21093DF0001

1SDC21095DF0001

Three-pole circuit breaker with
Ekip M-LIU electronic trip unit

6/6 SACE Tmax XT UL/CSA | US Technical Catalog

1SDC21096DF0001

Three-pole or four-pole circuit breaker
with thermal magnetic trip unit and RC
Inst or RC Sel residual current release

Captions

= Diagram figure number
* = See the note indicated by the letter
K51 = Microprocessor-based release:
– overcurrent release type Ekip I, Ekip LS/I, Ekip N-LS/I, Ekip LSI, Ekip LSIG, Ekip E-LSIG
– motor protection release type Ekip M-LIU
K87 = Residual current release type RC Inst, RC Sel, RC Sel 200, RC B Type
Q = Main circuit breaker
SD = Power supply switch-disconnector of the residual current release type RC Inst, RC Sel, RC Sel 200 or RC B Type
TI = Toroidal current transformer
TI/L1 = Current transformer placed on phase L1
TI/L2 = Current transformer placed on phase L2
TI/L3 = Current transformer placed on phase L3
TI/N = Current transformer placed on the neutral
YO1 = Opening solenoid of the microprocessor-based overcurrent release
YO2 = Opening solenoid of the residual current release

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US Technical Catalog | SACE Tmax XT UL/CSA 6/7