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AC contactor. 3TF48 Datasheet

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AC contactor. 3TF48 Datasheet






3TF48 contactor. Datasheet pdf. Equivalent




3TF48 contactor. Datasheet pdf. Equivalent





Part

3TF48

Description

AC contactor



Feature


AC contactor 3TF48, 3TF49, 3TK48 DIN VD E 0660, IEC 60947 Instructions Operat ing instructions for AC operation; for DC operation (DC-economy connection) se e operating instructions 3ZX1012-0TF36- 1AA1. WARNING: HAZARDOUS VOLTAGE CAN C AUSE ELECTRICAL SHOCK AND BURNS. DISCON NECT POWER BEFORE PROCEEDING WITH ANY W ORK ON THIS EQUIPMENT. Installation F or dimension drawi.
Manufacture

Siemens

Datasheet
Download 3TF48 Datasheet


Siemens 3TF48

3TF48; ngs see Fig. I (dimensions in mm). Fig. Ia with screw terminals; Fig. Ib with tab connectors 1) Minimum clearances from earthed parts. Fix on a plain sur face with two M5 screws - max. tighteni ng torque 6.2 Nm. Always use plain wash ers and spring washers. For permissibl e mounting positions see Fig. II. Conn ection Tighten all terminal screws even if not used. Per.


Siemens 3TF48

missible conductor cross-sections for ma in terminals: With box terminal in acco rdance with DIN EN 50 027 - see Fig. II Ia Finely stranded [mm2], with end sl eeve 1) Finely stranded [mm2], withou t end sleeve 1) Solid [mm2] Stranded [mm2] AWG wires, stranded Stripped le ngth Tightening torque 6 to 35 2.5 to 35 6 to 25 2.5 to 25 10 to 35 2.5 to 35 10 to 25 2.5 to.


Siemens 3TF48

25 6 to 16 16 to 50 3 to 1/0 2.5 to 1 6 6 to 16 2.5 to 16 16 to 50 16 to 35 16 to 35 18 to 1/0 1/0 1/0 18 to 20 mm/¾ in 4 to 6 Nm/36 to 52 lb.in Aft er alignment or bending back of connect ed leads, check the tightening torques of the clamping screws. 1) The ends of non-stranded cables must be twisted or 18 mm long ferrules to DIN 46228 Part 1 must be used. Crim.

Part

3TF48

Description

AC contactor



Feature


AC contactor 3TF48, 3TF49, 3TK48 DIN VD E 0660, IEC 60947 Instructions Operat ing instructions for AC operation; for DC operation (DC-economy connection) se e operating instructions 3ZX1012-0TF36- 1AA1. WARNING: HAZARDOUS VOLTAGE CAN C AUSE ELECTRICAL SHOCK AND BURNS. DISCON NECT POWER BEFORE PROCEEDING WITH ANY W ORK ON THIS EQUIPMENT. Installation F or dimension drawi.
Manufacture

Siemens

Datasheet
Download 3TF48 Datasheet




 3TF48
AC contactor
3TF48, 3TF49, 3TK48
DIN VDE 0660, IEC 60947
Instructions
Operating instructions for AC operation;
for DC operation (DC-economy connection) see operating instructions
3ZX1012-0TF36-1AA1.
WARNING:
HAZARDOUS VOLTAGE
CAN CAUSE ELECTRICAL SHOCK
AND BURNS.
DISCONNECT POWER BEFORE PROCEEDING
WITH ANY WORK ON THIS EQUIPMENT.
Installation
For dimension drawings see Fig. I (dimensions in mm).
Fig. Ia with screw terminals;
Fig. Ib with tab connectors
1) Minimum clearances from earthed parts.
Fix on a plain surface with two M5 screws - max. tightening torque 6.2 Nm.
Always use plain washers and spring washers.
For permissible mounting positions see Fig. II.
Connection
Tighten all terminal screws even if not used.
Permissible conductor cross-sections for main terminals:
With box terminal
in accordance with DIN EN 50 027
- see Fig. IIIa
Finely stranded [mm2],
with end sleeve
1)
Finely stranded [mm2],
without end sleeve 1)
Solid [mm2]
Stranded [mm2]
AWG wires, stranded
Stripped length
Tightening torque
6 to 35 2.5 to 35 6 to 25 2.5 to 25
10 to 35 2.5 to 35 10 to 25 2.5 to 25
6 to 16
16 to 50
3 to 1/0
2.5 to 16 6 to 16 2.5 to 16
16 to 50 16 to 35 16 to 35
18 to 1/0 1/0
1/0
18 to 20 mm/¾ in
4 to 6 Nm/36 to 52 lb.in
After alignment or bending back of connected leads, check the tightening
torques of the clamping screws.
1) The ends of non-stranded cables must be twisted or 18 mm long
ferrules to DIN 46228 Part 1 must be used.
Crimping tools PZ16 and PZ35 from Weidmüller are recommended for
the end sleeves.
Before mounting the box terminals (see Fig. IIIb), the arc chute must be
removed (see Fig. VII/1, 2, 3).
Without box terminal
- see Fig. IIIc
1 or 2 conductors can be connected 3TF48/3TF49
3TK48
Finely stranded [mm2],
with cable lug
2)
10 to 35
25 to 50
Stranded [mm2],
10 to 50
with cable lug
2)
25 to 70
Terminal bars
12 × 3
15 × 3
AWG wires,
solid and stranded
7 to 1/0
3 to 2/0
Terminal screws
M6 × 20
M8 × 25
Tightening torque
4 to 6 Nm/36 to 52 lb.in 10 to 14 Nm/89 to 124 lb.in
2) With the maximum conductor cross-section, the terminal cover
3TX7466-0A is required for adhering to the phase clearance.
Perrmissible conductor cross-sections for auxiliary terminals:
Solid
2 × 0.5 to 1; 2 × 1 to 2.5; 1 × 4 mm2
Finely stranded, with end sleeve 2 × 0.5 to 1; 2 × 0.75 to 2.5 mm2
Terminal pin
2 × 1 to 1.5 mm2
(in accordance with DIN 46231)
Push-on receptacle B2.8
2 × 0.3 to 1.5 mm2
AWG wires, solid and stranded
2 × 18 to 12
Stripped length
10 mm/0.4 in
Tightening torque
0.8 to 1.4 Nm/7 to 12 lb.in
Order No.: 3ZX1012-0TF04-1AA3
English
For installation of auxiliary conductor terminal 3TX7500-0A (accessory) see
Fig. IIIa.
For circuit diagram and position of connection terminals see Fig. IV.
Fig. IVa 2NO + 2NC;
Fig. IVb 4NO + 4NC
For circuit diagram (NEMA) see Fig. A.
Use 75° C copper wire only.
Operation
Observe operating voltage (see rating plate of magnet coil).
The operating state of the contactor is shown at the position indicator; see
Fig. V.
After a short circuit the main contacts and the arc chute must be checked.
Maintenance
The following components can be replaced: Main contacts, arc chute,
magnet coil, auxiliary contact blocks. - For Order Nos. see Catalog NSK.
Only use of original spare parts ensures the operational safety of the contac-
tors.
Cleaning
Remove dust by suction.
Auxiliary contact block
For replacement see Fig. VI/1, 2, 3; for extension see Fig. VI/4, 5, 6.
Arc chute and main contacts
Remove arc chute (Fig. VII/1, 2, 3). Check main contacts (Fig. VII/4). If neces-
sary, separate slightly welded contacts with a screwdriver.
Dark or rough contacts can still function. Do not refinish or grease them. If
the contact facings are so badly eroded that the carrier material is visible
(Fig. VII/4a), all contacts must be replaced.
For replacement of contacts see Fig. VII/5, 6, 7.
It is not necessary to disconnect the main conductors. Check the arc chute
and replace it if necessary.
With the arc chute removed, the contactor is mechanically interlocked.
Coil excitation is not permitted under these conditions.
Magnet coil
For coil replacement see Fig. VIII.
Ensure that the pole faces of the magnet coil are clean. Do not use grease
solvents or sharp objects for cleaning.
Technical Data
Weight
Permissible ambient temperature
- Operation
- Storage
Degree of protection
Main circuit
Rated insulation voltage Ui
Rated power
at
-230 V
-240 V
-400 V
-415 V
-500 V
-690 V
-1000 V
approx. 2.3 kg
-25 to +55 °C
-50 to +80 °C
IP 00 (IEC 60529)
AC-3
3TF48
kW 22
kW 24
kW 37
kW 42
kW 50
kW 67
kW 39
AC 1000 V
AC-3
3TF49
26
28
45
49
59
67
39
AC-1 (55 °C)
3TK48
53
58
92
100
121
160
86
Rated operational current
-Ie/AC-1 (55 °C)
-Ie/AC-3
-Ie/AC-3
to 690 V
to 500 V
at 690 V
3TF48
A 100
A 75
A 75
3TF49
100
85
75
3TK48
140
44
44
2




 3TF48
Horsepower Ratings (u and s ratings)
Rated insulation voltage Ui AC 600 V
Rated output of three-phase motors at 60 Hz
Continuous current
(open and enclosed)
- 200 V
- 230 V
- 460 V
- 575V
3TF48 ..-...1
NEMA/EEMAC
SIZE 3
3TF48
3TF49
A 90
hp 25
hp 30
hp 50
hp 50
100 105
25
30
30
40
60
75
75
100
3TF48/49:
Suitable for use on a circuit capable of delivering not more than 10.000 rms
symmetrical amperes, 600 V max.
Short-circuit protection to
Fuse links, gL (gG)
DIN VDE 0660 Part 102 A/IEC 60947-4** 3TF48 3TF49 3TK48
- Assignment type 1
A 250 250
250
- Assignment type 2
A 160 160
100
- non-welding Ik < 100 × Ie
A 100 100
-
- non-welding Ik 100 × Ie
A 125 125
-
Auxiliary circuit
Rated operational current Ie/AC-11
Short-circuit protection:
- NEOZED- and DIAZED fuse links
- Circuit breaker
5.6 A at AC 230 V
gL (gG), 16 A
C (10 A); B (16 A)
Fig. A
L1
CIRCUIT
L2
PROTECTIVE
DEVICE
L3
(IF USED)
FUSE
M
OLR
M
OLR
M
OLR
T1
3
T2 PHASE
T3 MOTOR
FUSE
H4 PRI. H1
X1
X2
FUSE
SEC.
START
STOP
(2)
(1)
44
(3)
43
M
95 OLR 96
M
A1 A2
2 WIRE CONTROL (IF USED)
For further data and accessories see Catalog NSK.
** Footnote:
According to IEC 60947-4/VDE 0660, the types of protection mean:
„Assignment type 1“: Short circuits can cause damage to the contactors making replacement of the equipment necessary.
„Assignment type 2“: Easily separable contact welding but no other damage.
3







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