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Siemens 3TF6944-8CP7

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Siemens 3TF6944-8CP7

vacuum kontaktör AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 1000 V, 3-pole, Uc: 230-276 V AC(50/60 Hz) sürücü: conventional yardımcı contacts 4 NO + 4 NC main circuit: bara kontrol ve yardımcı circuit: vidalı klemens

SiemensMFR # 3TF6944-8CP7SKU # CEY-8EF3B038E567
product designationVacuum contactor
product type designation3TF6
size of contactor14
function module for communicationYok
auxiliary switchYok
of main circuit rated value8 kV

Ürün Hakkında

vacuum kontaktör AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 1000 V, 3-pole, Uc: 230-276 V AC(50/60 Hz) sürücü: conventional yardımcı contacts 4 NO + 4 NC main circuit: bara kontrol ve yardımcı circuit: vidalı klemens

Siemens 3TF6944-8CP7

  • Orijinal ve sertifikalı Siemens ürünü
  • Dünya genelinde tedarik ağıyla hızlı temin
  • Teknik ekibimizden ürün seçimi ve uyumluluk desteği
  • Muadil ve alternatif ürün önerisi
  • Talebinize özel fiyat teklifi ve teslim süresi

Teknik Özellikler

product designationVacuum contactor
product type designation3TF6
General technical data
size of contactor14
function module for communicationYok
auxiliary switchYok
of main circuit with degree of pollution 3 rated value1.000 V
of auxiliary circuit with degree of pollution 3 rated value690 V
of main circuit rated value8 kV
of auxiliary circuit rated value6 kV
in networks with grounded star point between auxiliary and auxiliary circuit300 V
in networks with grounded star point between main and auxiliary circuit500 V
at AC9,5 g / 5 ms, 5,7 g / 10 ms
at AC13,5 g / 5 ms, 7,8 g / 10 ms
of contactor typical5.000.000
reference code according to IEC 81346-2Q
Substance Prohibitance (day/month/year)03/01/2017
SVHC substance nameLead CAS-Yok. 7439-92-1 Lead monoxide (lead oxide) CAS-Yok. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-Yok. 71868-10-5 Melamine CAS-Yok. 108-78-1
Net Weight22,427 kg
Ambient conditions
installation altitude at height above sea level maximum2.000 m
during operation-25... +55 °C
during storage-55... +80 °C
relative humidity minimum10 %
relative humidity during operation10... 95 %
relative humidity at 55 °C according to IEC 60068-2-30 maximum95 %
Main circuit
number of poles for main current circuit3
number of NO contacts for main contacts3
number of NC contacts for main contacts0
type of voltage for main current circuitAC
at AC-3 rated value maximum1.000 V
at AC-3e rated value maximum1.000 V
— up to 690 V at ambient temperature 40 °C rated value910 A
— up to 690 V at ambient temperature 55 °C rated value850 A
— at 400 V rated value820 A
— at 500 V rated value820 A
— at 690 V rated value820 A
— at 400 V rated value630 A
— at 500 V rated value630 A
— at 690 V rated value630 A
at AC-4 at 400 V rated value690 A
— up to 500 V for current peak value n=20 rated value675 A
— up to 690 V for current peak value n=20 rated value675 A
— up to 1000 V for current peak value n=20 rated value580 A
— up to 400 V for current peak value n=30 rated value450 A
— up to 500 V for current peak value n=30 rated value450 A
— up to 690 V for current peak value n=30 rated value450 A
— up to 1000 V for current peak value n=30 rated value450 A
at 40 °C minimum permissible600 mm²
at 400 V rated value360 A
at 690 V rated value360 A
— at 230 V rated value260 kW
— at 400 V rated value450 kW
— at 500 V rated value600 kW
— at 690 V rated value800 kW
— at 230 V rated value200 kW
— at 400 V rated value355 kW
— at 690 V rated value600 kW
up to 400 V for current peak value n=20 rated value445 kVA
up to 690 V for current peak value n=20 rated value771 kVA
up to 1000 V for current peak value n=20 rated value1.003 kVA
up to 400 V for current peak value n=30 rated value297 kVA
up to 690 V for current peak value n=30 rated value514 kVA
up to 1000 V for current peak value n=30 rated value778 kVA
thermal short-time current limited to 10 s7.000 A
power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor70 W
power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor42 W
no-load switching frequency at AC500 1/h
at AC-1 maximum500 1/h
— at 400 V maximum500 1/h
— at 690 V maximum500 1/h
at AC-2 at AC-3 maximum200 1/h
at AC-2 at AC-3e maximum200 1/h
Control circuit/ Control
type of voltage of the control supply voltageAC
at 50 Hz rated value230... 276 V
at 60 Hz rated value230... 276 V
at 50 Hz0,8... 1,1
at 60 Hz0,8... 1,1
inrush current peak18 A
duration of inrush current peak300 µs
pickup current mean value3,9 mA
pickup current peak5,5 A
duration of pickup current150.000 µs
holding current mean value30 mA
— at 50 Hz900 V·A
— at 60 Hz900 V·A
— at 60 Hz1.050 V·A
— at 50 Hz1.050 V·A
at 50 Hz1
at 60 Hz1
— at 50 Hz7 V·A
— at 60 Hz7 V·A
— at 50 Hz8 V·A
— at 60 Hz8 V·A
at 50 Hz0,4
at 60 Hz0,4
at AC70... 120 ms
at AC50... 130 ms
arcing time10... 15 ms
control version of the switch operating mechanismStandard A1 - A2
Auxiliary circuit
attachable4
instantaneous contact4
attachable4
instantaneous contact4
operational current at AC-12 maximum10 A
at 230 V rated value5,6 A
at 400 V rated value3,6 A
at 500 V rated value2,5 A
at 690 V rated value2,3 A
operational current at DC-12 at 440 V rated value0,33 A
at 24 V rated value10 A
at 48 V rated value10 A
at 110 V rated value3,2 A
at 125 V rated value2,5 A
at 220 V rated value0,9 A
at 600 V rated value0,22 A
at 24 V rated value10 A
at 48 V rated value5 A
at 110 V rated value1,14 A
at 125 V rated value0,98 A
at 220 V rated value0,48 A
at 600 V rated value0,07 A
contact reliability of auxiliary contactsone incorrect switching operation of 100 million switching operations (17 V, 5 mA)
UL/CSA ratings
at 480 V rated value820 A
at 600 V rated value820 A
— at 200/208 V rated value290 hp
— at 220/230 V rated value350 hp
— at 460/480 V rated value700 hp
— at 575/600 V rated value860 hp
contact rating of auxiliary contacts according to ULA600 / Q600
Short-circuit protection
— with type of coordination 1 requiredgG: 1250 A (690 V, 100 kA)
— with type of coordination 2 requiredgG: 630 A (690 V, 50 kA), aM: 630 A (690 V, 50 kA), BS88: 630 A (690 V, 50 kA)
for short-circuit protection of the auxiliary switch requiredfuse gG: 10 A
Installation/ mounting/ dimensions
mounting positionwith dikey mounting surface +/-90° rotatable, with dikey mounting surface +/- 22,5° tiltable to the front ve back
fastening method side-by-side mountingVar
fastening methodscrew fixing
height295 mm
width230 mm
depth237 mm
— forwards20 mm
— upwards10 mm
— downwards10 mm
— at the side10 mm
— forwards20 mm
— upwards10 mm
— at the side10 mm
— downwards10 mm
— forwards20 mm
— upwards10 mm
— downwards10 mm
— at the side10 mm
Connections/ Terminals
for main current circuitConnection bar
for auxiliary and control circuitscrew-type terminals
at contactor for auxiliary contactsScrew-type terminals
width of connection bar40 mm
thickness of connection bar6 mm
diameter of holes13,5 mm
number of holes1
stranded50... 240 mm²
finely stranded with core end processing50... 240 mm²
finely stranded with core end processing240... 50 mm²
solid or stranded0,5... 2,5 mm²
finely stranded with core end processing0,5... 2,5 mm²
— solid2x (0,5... 1,0 mm²), 2x (1,0... 2,5 mm²)
— finely stranded with core end processing2x (0,5... 1,0 mm²), 2x (0,75... 2,5 mm²)
for AWG cables for auxiliary contacts2x (18... 12)
AWG number as coded connectable conductor cross section for main contacts500
AWG number as coded connectable conductor cross section for auxiliary contacts18... 12
Safety related data
mirror contact according to IEC 60947-4-1Var; One NC contact her biri must be connected in series for the right ve left auxiliary switch block respectively
positively driven operation according to IEC 60947-5-1Yok
suitable for safety functionVar
service life maximum20 a
test wear-related service life necessaryVar
with low demand rate according to SN 3192040 %
with high demand rate according to SN 3192073 %
B10 value with high demand rate according to SN 319201.000.000
failure rate [FIT] with low demand rate according to SN 31920100 FIT
ISO 13849
device type according to ISO 13849-13
overdimensioning according to ISO 13849-2 necessaryVar
IEC 61508
safety device type according to IEC 61508-2Type A
Electrical Safety
protection class IP on the front according to IEC 60529IP00; IP20 with cover
touch protection on the front according to IEC 60529finger-safe, for dikey contact from the front with cover

Aksesuarlar 4

Siemens 3TF6944-8CP7 motorla birlikte kullanılabilen, ayrı olarak tedarik edilen orijinal aksesuarlar aşağıda listelenmiştir. Koda tıklayarak aksesuarın sayfasına ve uyumlu diğer motorlara ulaşabilirsiniz.

Parça noAçıklamaUyumlu motor
3TX7572-3GAksesuar · Surge suppressor · varistors
3TX7572-3JAksesuar · Surge suppressor · varistors
3TX7686-0AAksesuar · Terminal covers · terminal covers
3TX7696-0AAksesuar · Terminal covers · terminal covers

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