3RH11311BB40 Datasheet, PDF (7/76 Pages) Siemens Semiconductor Group – 3RT10 motor contactors

3RT, 3RH, 3TB, 3TC, 3TH, 3TK Contactors for Special Applications
3TC Contactors for Switching DC Voltage
1- and 2-pole, 32 ... 400 A
3TC74
3TC78
Size Rated data
DC-3 and DC-5¹⁾
Opera- Ratings of DC motors at
tional
current I_e
Auxiliary Rated control DT Order No.
contacts²⁾ supply
voltage U_s
Price
per PU
PU PS* PG Weight
(UNIT,
per PU
SET, M)
approx.
110 V 220 V 440 V 600 V 750 V 1200 V 1500 V
A
kW kW kW kW kW kW kW NO
3TC74 1-pole contactors ¼ Operating voltage up to 750 V
DC operation
12 400
35 70 140 200 250 --
--
4
AC operation, 50 Hz
12 400
35 70 140 200 250 --
--
4
3TC78 2-pole contactors ¼ Operating voltage up to 1500 V
DC operation
12 400
35 70 140 200 250 400 500 4
AC operation, 50 Hz
12 400
35 70 140 200 250 400 500 4
For more rated control supply voltages U_s, see below.
For spare parts, see page 3/144.
NC V
4 24 DC
C
110 DC
C
4 230 / 220 AC³⁾ C
4 24 DC
C
110 DC
C
4 230 / 220 AC³⁾ C
3TC74 14-0EB
3TC74 14-0EF
3TC74 14-1CM
3TC78 14-0EB
3TC78 14-0EF
3TC78 14-1CM
1) For the permissible load for utilization category DC-1,
see Technical Specifications.
2) The auxiliary switch complement cannot be altered on DC-operated
contactors.
3) Upper operating range limit at 230 V: 1.14 x U_s.
Contactor type
Rated control supply voltage U_s
3TC44
3TC48
3TC52/56
Rated control supply voltages (the 10th and 11th position of the order number must be changed)
AC operation · Coils for 50 Hz
24 V AC
110 V AC
230/220 V AC
240 V AC
B0
F0
P0¹⁾
U0
B0
F0
P0¹⁾
U0
--
F0
P0¹⁾
--
AC operation · Coils for 50/60 Hz
24 V AC
110 V AC
120 V AC
C2
--
--
G2
--
--
K2
--
--
220 V AC
230 V AC
N2
--
--
L2
--
--
DC operation
24 V DC
48 V DC
60 V DC
B4
B4
B4
W4
W4
--
E4
E4
--
110 V DC
125 V DC
220 V DC
F4
F4
F4
G4
G4
--
M4
M4
M4
230 V DC
P4
P4
--
1) Coil operating range at 220 V or 380 V: 0.85 to 1.15 x U_s;
lower operating range limit according to IEC 60947.
2) Upper operating range limit at 230 V: 1.14 x U_s.
kg
1 1 unit 101 10.728
1 1 unit 101 10.660
1 1 unit 101 10.850
1 1 unit 101 22.500
1 1 unit 101 15.960
1 1 unit 101 23.824
3TC74/78
--
--
M²⁾
--
--
--
--
--
--
B
--
--
F
--
M
--
* You can order this quantity or a multiple thereof.
Siemens LV 1 · 2006
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