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3RT1044-3XB40-0LA2 参数 Datasheet PDF下载

3RT1044-3XB40-0LA2图片预览
型号: 3RT1044-3XB40-0LA2
PDF下载: 下载PDF文件 查看货源
内容描述: 接触器,支持扩展公差0.7 ... 1.25× ,为铁路应用 [Contactors with Extended Tolerance 0.7 ... 1.25 x , for Railway Applications]
分类和应用:
文件页数/大小: 76 页 / 1473 K
品牌: SIEMENS [ Siemens Semiconductor Group ]
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Accessories and Spare Parts  
For 3RT, 3RH Contactors and Contactor Relays  
Accessories for 3RT, 3RH contactors and  
contactor relays  
Overview  
Snap-on auxiliary contact blocks  
The timing relays are suitable for both AC and DC operation.  
The auxiliary switch blocks and the maximum number of blocks  
that can be mounted are described in "Motor Contactors" and  
"Contactor Relays".  
Size S00  
The version for size S00 contactors is fitted onto the front of the  
contactor (with the supply voltage switched off) and then slid  
into its latched position; at the same time, the timing relay is  
connected by means of plug-in contacts to coil terminals A1 and  
A2 of the contactor. Any contactor coil terminals which are not  
required are sealed off by means of covers on the enclosure of  
the time-delay block, to prevent them from being connected  
inadvertently.  
Solid-state time-delay auxiliary switch block  
The timer module, which is available in "ON-delay" and "OFF-  
delay" versions, allows time-delayed functions up to 100 s  
(3 distinct delay ranges).  
It contains a relay with one NO contact and one NC contact;  
depending on the version, the relay is switched either after an  
ON-delay or after an OFF-delay.  
A varistor is integrated in the timer module in order to damp  
opening surges in the contactor coil.  
The timer module with "WYE-DELTA FUNCTION" is equipped  
with one delayed and one instantaneous NO contact, with an  
interval time of 50 ms between the two. The delay time of the  
NO contact can be set between 1.5 s and 30 s.  
The solid-state, time-delay block cannot be mounted on size S00  
coupling relays.  
Sizes S0 to S3  
The time-delay block for size S0 to S3 contactors is plugged into  
coil terminals A1 and A2 on top of each contactor; the timing  
relay is connected both electrically and mechanically by means  
of pins.  
Wye-delta function:  
A1/A2  
Y 27/28  
37/38  
A varistor is integrated in the timer module in order to damp  
opening surges in the contactor coil.  
t
50 ms  
The contactor on which the solid-state, time-delay auxiliary  
switch block is mounted operates without a delay.  
Note on configuration  
a)  
b)  
L1  
L1  
Size S00  
S1  
K3  
S1  
K3  
The solid-state, time-delay auxiliary switch block is fitted onto the  
front of the contactor. The timer module is supplied with power  
directly by plug-in contacts through the coil terminals of the  
contactor, in parallel with A1/A2. The timing function is activated  
by closing the contactor on which the auxiliary switch block is  
mounted. The OFF-delay variant operates without an auxiliary  
power supply; minimum on-time: 200 ms.  
K3  
A1 B1A2  
A1 B1A2  
1
2
1
2
A1 A2  
A1  
A2  
N
N
$ Timing relay block  
% Contactor  
A varistor is integrated in the timer module in order to damp  
opening surges in the contactor coil.  
The activation of loads parallel to the start input is not  
permissible when using AC control voltage (see (a) in the circuit  
diagram).  
The solid-state, time-delay auxiliary switch block cannot be  
mounted on size S00 coupling relays.  
The 3RT19 16-2D... / 3RT19 26-2D... OFF-delay timing relay  
blocks have a zero potential start input B1. This means that if  
there is a parallel load on terminal B1, activation can be  
simulated with AC voltage. In this case, the additional load  
(e.g. contactor K3) must be wired in accordance with (b).  
Sizes S0 to S12  
The solid-state, time-delay auxiliary switch block is fitted onto the  
front of the contactor.  
The timer module is supplied with power through two terminals  
(A1/A2); the time delay of the auxiliary switch block can be  
activated either by a parallel link to any contactor coil or by any  
power source.  
OFF-delay device for size S00 to S3 contactors  
AC and DC operation  
IEC 60947, EN 60947  
The OFF-delay variant operates without an auxiliary power  
supply; minimum on-time: 200 ms.  
For screw and snap-on mounting onto 35 mm standard  
mounting rail. The OFF-delay devices have screw terminals.  
A single-pole auxiliary switch block can be snapped onto the  
front of the contactor in addition to the timer module.  
The OFF-delay device prevents a contactor from dropping out  
unintentionally when there is a short-time voltage dip or voltage  
failure. It supplies a downstream, DC-operated contactor with  
the necessary power during a voltage dip, ensuring that the  
contactor does not trip. The 3RT19 16 OFF-delay devices are  
specifically designed for operation with the 3RT contactors and  
3RH contactor relays of the SIRIUS series.  
The timer module has no integrated components for damping  
opening surges.  
Solid-state time-delay block with semiconductor output  
The timer module, which is available in "ON-delay" and "OFF-  
delay with auxiliary voltage" versions, allows time-delayed  
functions up to 100 s (3 distinct delay ranges). Contactors fitted  
with a time-delay block close or open after a delay according to  
the set time.  
The OFF-delay device operates without external voltage on a  
capacitive basis, and can be energized with either AC or DC  
(24 V version only for DC operation). Voltage matching, which is  
only necessary with AC operation, is performed using a rectifier  
bridge.  
The ON-delay variant of the timing relay is connected in series  
with the contactor coil; terminal A1 of this coil must not be  
connected.  
A contactor opens after a delay when the capacitors of the  
contactor coil, built into the OFF-delay device, are switched in  
parallel. In the event of voltage failures, the capacitors are  
discharged via the coil and thereby delay the opening of the  
contactor.  
With the OFF-delay variant of the timing relay, the contactor coil  
is contacted directly through the relay; terminals A1 and A2 of  
the contactor coil must not be connected.  
Siemens LV 1 · 2006  
3/107  
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