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BETA Switching
Switching Devices
5
TT5 7 Insta contactors, DC technology
8/19
Siemens ET B1 · 10/2008
8
*
You can order this quantity or a multiple thereof.
Switching of direct voltages DC-1 and DC-3
Switching of lamps
Maximum number of lamps in units, per NO contact at 230 V AC, 50 Hz.
Fluorescent and compact lamps in ballast operation (KVG)
(
permissible number of lamps in units per circuit at 230 V AC, 50 Hz)
Fluorescent and compact lamps with electronic primary switching device (ECG)
(
permissible number of lamps in units per circuit at 230 V AC, 50 Hz)
High-pressure mercury-vapor lamps (HQL)
(
permissible number of lamps in units per circuit at 230 V AC, 50 Hz)
Halogen metal-vapor lamps (HQI)
(
permissible number of lamps in units per circuit at 230 V AC, 50 Hz)
High-pressure sodium-vapor lamps (NAV)
(
permissible number of lamps in units per circuit at 230 V AC, 50 Hz)
Permissible DC switching currents for NO contacts with resistive load
4
contacts in series are not recommended for 24 V due to unreliable contacts
1
contact
2
contacts
in series
3
contacts
in series
4
contacts
in series
DC-1 DC-3 DC-1 DC-3 DC-1 DC-3 DC-1 DC-3
5
TT5 73,
4-
pole, 24 A
I
e
at U
e
= 24 V DC A
24
16
24
24
24
24
24
--
48
V DC A
21
8
24
18
24
24
--
--
60
V DC A
17
4
24
14
24
24
--
--
110
V DC A
7
1.6 16
6.5 24
16
8
--
220
V DC A
0.9 0.2 4.5 1
13
4
3.5 --
5
TT5 74,
4-
pole, 40 A
I
e
at U
e
= 24 V DC A
40
19
40
40
40
40
24
--
48
V DC A
23
10
40
20
40
40
--
--
60
V DC A
16
5
32
16
40
34
--
--
110
V DC A
8
1.8 17
7
30
18
8
--
220
V DC A
1
0.3
5
1.1 15
4.5 3.5 --
5
TT5 75,
4-
pole, 63 A
I
e
at U
e
= 24 V DC A
50
21
63
44
63
63
63
--
48
V DC A
26
11
43
22
63
47
--
--
60
V DC A
20
5.5 35
18
60
38
--
--
110
V DC A
9
2
19
8
33
21
--
--
220
V DC A
1.1 0.3 5.5 1.2 17
5
20
--
Incandescent lamp loads
5
TT5 73,
4-
pole, 24 A
Per NO contact
W 1500
5
TT5 74,
4-
pole, 40 A
Per NO contact
W 3000
5
TT5 75,
4-
pole, 63 A
Per NO contact
W 5000
Uncorrected
Parallel-corrected
DUO circuit
2
lamps
Lamp type
W L18
L36
L58
L18
L36
L58
2
× L18 2 × L36 2 × L58
Capacitor capacitance
F --
--
--
4.5
4.5
7.0
--
--
--
5
TT5 73,
4-
pole
24
A Per NO contact
Per NO contact
Per NO contact
26
20
12
8
8
5
26
20
12
5
TT5 74,
4-
pole
40
A
85
65
40
16
16
10
85
65
40
5
TT5 75,
4-
pole
63
A
135
105
65
67
67
43
140
105
65
1
lamp
2
lamps
Lamp type
W 1 × L18
1
× L36
1
× L58
2
× L18
2
× L36
2
× L58
5
TT5 73,
4-
pole
24
A Per NO contact
Per NO contact
Per NO contact
24
16
14
18
11
8
5
TT5 74,
4-
pole
40
A
55
34
32
34
20
17
5
TT5 75,
4-
pole
63
A
76
47
46
48
29
24
Uncorrected
Parallel-corrected
Lamp type
W 50 80 125 250 400 700 1 000 50 80 125 250 400 700 1 000
Capacitor capacitance
F --
--
--
--
--
--
--
7
8
10 18 25 45 60
5
TT5 73,
4-
pole
24
A Per NO contact
Per NO contact
Per NO contact
14 10
7
4
2
1 1
5
4
3
2
1
0 0
5
TT5 74,
4-
pole
40
A
36 27
19 10
7
4 3
10
8
6
3
3
1 1
5
TT5 75,
4-
pole
63
A
50 38
26 14 10
6 4 43 37
26 15 10
5
4
Uncorrected
Parallel-corrected
Lamp type
W 70
150 250 400 1 000 2 000 70
150 250 400 1 000
Capacitor capacitance
F --
--
--
--
--
--
12
20
33
35
95
5
TT5 73,
4-
pole
24
A Per NO contact
Per NO contact
Per NO contact
5
3
2
1
0 0 3
1
1
0
0
5
TT5 74,
4-
pole
40
A
14
8
5
4
1 1 5
3
2
2
0
5
TT5 75,
4-
pole
63
A
20
11
7
6
2 1 18
9
5
4
1
Uncorrected
Parallel-corrected
Lamp type
W 150
250
400
1 000
150
250
400
1 000
Capacitor capacitance
F --
--
--
--
20
33
48
106
5
TT5 73,
4-
pole
24
A Per NO contact
Per NO contact
Per NO contact
4
3
1
0
1
1
0
0
5
TT5 74,
4-
pole
40
A
15
9
6
3
3
2
1
0
5
TT5 75,
4-
pole
63
A
20
15
8
4
15
9
6
2
© Siemens AG 2008