3RV1131-4FA10 データシートの表示（PDF） - Siemens AG
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3RV1131-4FA10 Datasheet PDF : 72 Pages
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Useful information
Categories of duty - as per IEC 947 / IS 13947
Current
AC
DC
Utilisation
Categories
AC1
AC2
AC3
AC4
AC5a
AC5b
AC6a
AC6b
AC7a
AC7b
AC8a
AC8b
DC1
DC3
DC5
DC6
Typical Application
Non-inductive or slightly inductive loads, resistance furnances
Slipring motors; starting, switching off
Squirrel-cage motors; starting, switching off motors during running(1)
Squirrel-cage motors; starting, plugging, inching
Switching of electric discharge lamp controls
Switching of incandescent lamps
Switching of transformers
Switching of capacitor banks
Slightly inductive loads in household appliances and similar applications
Motorloads for household applications
Hermetic refrigerant compressor motor(2) control with manual resetting of overload releases
Hermetic refrigerant compressor motor(2) control with automatic resetting of overload releases
Non-inductive or slightly inductive loads, resistance furnaces
Shunt-motors: starting, plugging, inching, dynamic braking of d.c motors
Series-motors: starting, plugging, inching, dynamic braking of d.c motors
Switching of incandescent lamps
(1) AC3 category may be used for occasional inching (jogging) or plugging for limited time periods such as machine set-up; during such limited time periods the
number of such operations should not exceed five per minute or more than ten in a 10-min period.
(2) Hermetic refrigent compressor motor is a combination consisting of a compressor and a motor, both of which are enclosed in the same housing, with no
external shaft or shaft seals, the motor operating in the refrigent
(3) Selection of contactors for utilisation categories from AC-5a to AC-8b and DC6 upon enquiry.
Contact life calculation:
Contactors have bounce free operation. Electrical life is influenced
by the breaking currents. For normal AC3 duty the breaking
current is the rated operational current and for AC4 duty, the
typical breaking current is 6 times the rated operational current. In
case of mixed duty, the expected life is determined as under
Where
X = expected life for mixed duty
A = expected life for normal AC3 duty
B = expected life for 100% AC4 duty
C = proportion of inching operations as a percentage of total
operations.
Recommended selection of contactors for hoisting duty (upto 85A)
In hoisting operation, slipring motors are generally used. For this typical hoisting duty, we recommend the contactors listed in the following
table.
Contactor
Type
3TF31
3TF33
3TF45
3TF47
3TF49
Stator Protection
Maximum load current with hoisting motor.
For intermittent duty S3
25%
40%
60%
A
A
A
10
10
9
17
16
15
28
25
23
49
45
40
68
62
54
100%
A
8
13
20
30
45
Rotor Protection
Maximum load current with hoisting motor(Delta circuit).
For intermittent duty S3
25%
40%
60%
100%
A
A
A
A
15
14
13
12
25
24
22
20
42
38
35
30
73
68
60
45
100
95
80
68
Max rotor
standstill
voltage
V
660
660
660
750
1000
23
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