Siemens SIRIUS M200D, Руководство пользователя

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Technical data
8.8 Electrical service life of contactor
M200D PROFIBUS/PROFINET
Manual, 08/2014, A5E01577426A/RS-AA/004
183
Switching cycles/hour for 3RK1395-6LS71-.AD.(1.5 A to 12 A)
Installation position
Vertical Horizontal
Rated current Ie 9 A 9 A 9 A 9 A 9 A 9 A
Ambient temperature 40 °C 50 °C 55 °C 40 °C 50 °C 55 °C
Motor protection
1) 2) 1) 2) 1) 2) 1) 2) 1) 2) 1) 2)
Class 5 (10a)
ED=30 % (8 x I
e
) / 0.35 s 170 330 170 240 170 200 170 280 170 200 170 170
ED=70 % (8 x I
e
) / 0.35 s 100 280 100 190 100 150 100 230 100 155 100 120
ED=30 % (8 x I
e
) / 0.7 s 85 170 85 120 85 100 85 140 85 105 85 85
ED=70 % (8 x I
e
) / 0.7 s 52 140 52 95 52 75 52 120 52 82 52 62
Class 10
ED=30 % (8 x I
e
) / 0.75 s 85 160 85 115 85 95 80 130 80 95 80 80
ED=70 % (8 x I
e
) / 0.75 s 52 130 52 90 52 70 50 110 50 75 50 57
ED=30 % (8 x I
e
) / 1.5 s 40 80 40 59 40 48 40 67 40 48 40 40
ED=70 % (8 x I
e
) / 1.5 s 25 67 25 47 25 37 25 56 25 38 25 29
1)
Duty cycle current rms value = 1.15 x I
e
→ motor protection
2)
Duty cycle limit for motor starter. The motor should be protected against overload here by means of a thermistor.
8.8 Electrical service life of contactor
Service life of main contacts (DSte / RSte) to 5.5 kW
The curves show the contact service life of contactors when switching ohmic and inductive
three-phase loads (AC-1/AC-3) as a function of breaking current and rated operating voltage.
The prerequisite for this are command devices that switch at random, i.e. not synchronously
to the phase angle of the line.
The rated operating current I
e
in accordance with utilization category AC-4 (breaking of 6
times the rated operating current) is determined for a contact service life of at least 200 000
operating cycles.
If a smaller contact service life is sufficient, the rated operating current I
e
/AC-4 can be
increased.