SIEMENS
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Siemens IC 10 · 2017
Relays
Timing Relays
SIRIUS 3RT19 timing relays for mounting onto 3RT1 contactors
10
■
Technical specifications
3RT1926 function diagrams
More information
Technical specifications
, see
Manual and internal circuit diagrams,
see
FAQs,
According to IEC 61812-1/DIN VDE 0435-2021
Type
Electronic timing relay blocks
with semiconductor output
Solid-state time-delay
auxiliary switch blocks
3RT19.6-2C
3RT19.6-2D
3RT19.6-2E
3RT19.6-2F
3RT19.6-2G
Rated insulation voltage
U
i
Pollution degree 3
Overvoltage category III according to
DIN VDE 0110
V AC
300
Permissible ambient temperature
• During operation
°C
-25 ... +60
• During storage
°C
-40 ... +80
Operating range of excitation
0.8 ... 1.1 x
U
s
,
0.95 ... 1.05 times the rated frequency
0.85 ... 1.1 x
U
s
,
0.95 ... 1.05 times the rated frequency
Rated operational currents
I
e
• Load current
A
0.3 for 3RT1916; 0.5 for 3RT1926
--
• AC-15, 24 ... 400 V, 50 Hz
A
--
3
• DC-13, 24 V
A
--
1
• DC-13, 125 V
A
--
0.2
• DC-13, 250 V
A
--
0.1
Mechanical endurance
Oper-
ating
cycles
100 x 10
6
10 x 10
6
Electrical endurance at
I
e
Oper-
ating
cycles
100 x 10
6
1 x 10
5
Connection type
Screw terminals
• Terminal screw
M3 (for standard screwdriver, size 2 and Pozidriv 2)
• Solid
mm
2
1 x (0.5 ... 4)/2 x (0.5 ... 2.5)
• Finely stranded with end sleeve
mm
2
1 x (0.5 ... 2.5)/2 x (0.5 ... 1.5)
• AWG cables, solid or stranded
AWG
2 x (20 ... 14)
• Tightening torque
Nm
0.8 ... 1.2
1 NO contact
+ 1 NC contact
1 NO contact (semiconductor)
3RT1926-2E
3RT1926-2F
3RT1926-2C
3RT1926-2D
ON-delay
OFF-delay without control signal
ON-delay
two-wire design (varistor integrated)
OFF-delay
with control signal (varistor integrated)
2 NO contacts
Legend
Timing relay energized
Contact closed
Contact open
Contactor coil energized
3RT1926-2G
Wye-delta function
1 NO delayed, 1 NO instantaneous,
dead time 50 ms (varistor integrated)
t
-5/-6
-7/-8
A
1/A2
NSB0_00936
A
1/A2
>200 ms
-5/-6
-7/-8
NSB0_00937
t
t
Contactor
Timing relay
NSB0_0939a
A1/A2
A1/A2
t
>35 ms
B1/A2
A1/A2
A1/A2
NSB0_00940a
Contactor
Timing relay
50 ms
-7/-8
Y -7/-8
A
1/A2
NSB0_00938
t
© Siemens AG 2016