Technical information

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1SDC210033D0202
Accessories
Mechanical Accessories
Rear mechanical interlock
Support, designed for installation on the rear of two circuit-breakers to be interlocked, and which,
by means of linkages, prevents the two circuit-breakers it is installed on from closing simultaneously.
The circuit-breakers in the Tmax XT family are interlocked two-by-two (IO-OI-OO) by means of a
chassis and special plates. Interlocked circuit-breakers can be in fixed, plug-in or withdrawable ver-
sion. Both circuit-breakers and switch-disconnectors in the three-pole and four-pole versions can
be interlocked.
The acceptable combinations are:
Q
XT1-XT1
Q
XT2-XT4
Q
XT1-XT2
Q
XT2-XT2
Q
XT1-XT3
Q
XT3-XT3
Q
XT1-XT4
Q
XT4-XT4.
The following equipment must be ordered to make the rear interlock:
Q
a vertical or horizontal chassis;
Q
a plate for each circuit-breaker to be interlocked.
Interlock - Chassis
Bracket for fixing on DIN rail
XT1-XT3 circuit-breaker
with standard flange
Circuit-breaker with
optional flange
Rotary handle
with flange
MOE
with flange
MOD
with flange
Two Plates Interlock
XT2-XT4 circuit-breaker
with standard flange
Bracket for fixing on DIN rail
Support designed for installation on the back of the circuit-breakers to simplify assembly on stand-
ardized DIN EN 50022 rail.
The following can be installed on DIN EN 50022 rail:
Q
all Tmax XT circuit-breakers in the fixed three-pole or four-pole versions;
Q
XT1, XT3 circuit-breakers equipped with RC Sel 200; RC Inst, RC Sel for XT1 and XT3 residual
current releases.
Flanges
Plastic plate that acts as an interface between the circuit-breaker and the hole in the panel door. All
the Tmax XT series flanges are newly designed and do not require screws for installation. Flanges
are applied:
Q
around the front part of the fixed/plug-in circuit-breaker (standard supply with the circuit-breaker);
Q
around the operating lever for all fixed/plug-in/withdrawable version circuit-breakers (optional);
Q
around the MOD or MOE motor operator (standard supply with MOD and MOE);
Q
around the front for FLD locks (standard supply with FLD);
Q
around the direct rotary handle operating mechanism (standard supply with RHD);
Q
around the transmitted rotary handle operating mechanism (standard supply with RHE);
Q
around the RC Inst, RC Sel for XT1 and XT3, RC Sel for XT2 and XT4 residual current release
(standard supply with residual current devices) .
Interlock