363 / 582
BETA Switching
Switching Devices
5
TT5 7 Insta contactors, DC technology
8/15
Siemens ET B1 · 10/2008
8
*
You can order this quantity or a multiple thereof.
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Technical specifications
5
TT5 73
5
TT5 74
5
TT5 75
4-
pole
4-
pole
4-
pole
Standards
EN 60947-4-1; EN 60947-5-1; EN 61095; UL 508
Approved acc. to
UL 508; UL File No. E303328
Rated frequency at AC f
n
Hz
40 ... 450
Rated control voltage U
c
V AC
24, 115, 230
24, 230
V DC
24, 110, 220
24, 220
Operating range
×
U
c
0.85 ... 1.1
Rated operational voltage U
e
V
440
Rated operational current
I
e
At V AC
Acc. to UL 480; acc. to IEC 440
•
AC-1/AC-7a, NO contacts
A
24
40
63
•
AC-1/AC-7a, NC contacts
A
24
30
30
•
AC-3/AC-7b, NO contacts
A
9
22
30
•
AC-3/AC-7b, NC contacts
A
6
--
--
Rated power dissipation P
v
•
Pick-up power
VA/W
4/4
5/5
65/65
•
Holding power
VA/W
4/4
5/5
4.2/4.2
•
Per contact AC-1/AC-7a
VA
1.5
3
6
Switching times
•
Closing (NO contacts)
ms
40
•
Opening (NO contacts)
ms
40
Rated impulse withstand voltage U
imp
kV
4
Contact gap
(
NO contacts) min.
mm
2.4
2.8
2.6
Electrical service life
At
I
e
and load
AC-1/AC-7a
For switching
cycles
150000
AC-3/AC-7b
For switching
cycles
500000
170000
240000
Mechanical service life
For switching
cycles
1
million
Maximum switching frequency
At load
AC-1/AC-7a
Switching
cycles/h
300
AC-3/AC-7b
Switching
cycles/h
600
Switching of resistive loads AC-1
V AC
230
For rated operational power P
s
(
NO contacts)
•
Single-phase
kW
5.3
8.8
13.8
•
Three-phase
kW
16
26
41
Switching of three-phase asynchronous motors AC-3
V AC
400
For rated operational power P
s
(
NO contacts)
•
Single-phase
kW
--
•
Three-phase
kW
4
11
15
Minimum switching capacity
V; mA
17; 200
Overload withstand capability
Per conducting path (NO contacts only)
At 10 s
A
72
176
240
Short-circuit protection, according to coordination type 1
Back-up fuse characteristic gL/gG
A
35
63
80
Terminals
±
screw (Pozidriv)
•
Coil connection
1
1
1
•
Main connection
1
2
2
Tightening torques
•
Coil connection
Nm
0.9
0.9
0.9
•
Main connection
Nm
1.0
2.5
2.5
Conductor cross-sections
•
Coil connection
-
Solid
mm
2
1.5 ... 4
-
Stranded, with end sleeve
mm
2
1.5 ... 2.5
-
AWG cables
AWG
16 ... 10
Tightening torques
lb. in
8
•
Main connection
-
Solid
mm
2
1.5 ... 10
2.5 ... 25
-
Stranded, with end sleeve
mm
2
1.5 ... 2.5
2.5 ... 16
-
AWG cables
AWG
16 ... 8
16 ... 4
Tightening torques
lb. in
9
20
Permissible ambient temperature
•
For operation
°C
-25 ...
+55
•
For storage
°C
-50 ...
+80
Degree of protection
Acc. to EN 60529
IP20, with connected conductors
Acc. to UL 508
I
n
A
24
40
63
UL 508 General Use 240 V/480 V
FLA
A
24
40
63
UL 508 AC discharge lamps
A
24
30
40
UL 508 motor load 240 V
Power
hp
3
7.5
10
UL 508 motor load 480 V
Power
hp
5
15
15
UL 508 short circuit at 480 V
K5 fuses
A
25
40
75
kA
5
© Siemens AG 2008