Product Overview

3RT1 contactors/3RH1 control relays
SIRIUS System Manual
3-98 GWA 4NEB 430 0999-02 DS 01
Connection When the solid-state time relay block is installed, it is connected at the
same time with the A1 and A2 coil connections of the contactor by the plug-
in pins. Coil connections of the contactor that are not required are covered
by covers on the housing of the time relay block, thus preventing inadvert-
ent connection.
Function diagrams 3RT19 16-2C, on-delay 3RT19 16-2D, off-delay
Fig. 3-56: Solid-state time relay block with semiconductor output, function diagrams
(frame size S00)
Circuit diagrams 3RT19 16-2C... 3RT19 16-2D...
on-delay off-delay (with auxiliary voltage)
Frame size S00 Frame size S00
Fig. 3-57: Solid-state time relay with semiconductor output, circuit diagrams (frame size S00)
3.4.3.2 Frame sizes S0 to S3 (3RT19 26-2C, -2D)
Note on configuration Caution
The solid-state time relay block with a semiconductor output
(3RT1926-2C, -2D) must not be used for 3RT104 contactors of frame size S3
with U
S
≤ 42 V because the coil current used for the output semiconductor
is too high.
The solid-state time relay block must not be attached to the lower coil con-
nections.
Installation/removal
Fig. 3-58: Solid-state time relay with a semiconductor output, installation (frame size S0 to S3)
NSK-7937a
A1/A2
A1/A2
t
Time relay
Contactor
NSK-7938a
A1/A2
A1/A2
B1/A2
35 ms
>
t
Time relay
Contactor
¿ Solid-state time relay block
À Contactor
N/L
NSB00554
A2
A1
1
2
L1/L+
S1
NSB00555
L1/L+
A2
A1 B1
S1
1
2
N/L
The solid-state time relay block
for the contactors of frame sizes
S0 to S3 is attached at the top on
the A1 and A2 coil connections
of each contactor, connecting the
time relay electrically and
mechanically with pins.
2
1