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Siemens 3TF6933-8DB4

Vacuum contactor AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 1000 V, 3-pole

MPN: 3TF6933-8DB4
Category: SIRIUS 3RT12 and 3TF6 vacuum contactors

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What is the Siemens 3TF6933-8DB4?

vacuum contactor AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 1000 V, 3-pole, Uc: 24 V DC drive: conventional installed with series resistor with reversing contactor 3TC4417-4A DC economy circuit auxiliary contacts 3 NO + 3 NC main circuit: busbar control and auxiliary circuit: screw terminal

Specifications

General

product designation	Vacuum contactor
product type designation	3TF6

General technical data

size of contactor	14
product extension — function module for communication	No
product extension — auxiliary switch	No
insulation voltage — of main circuit with degree of pollution 3 rated value	1 000 V
insulation voltage — of auxiliary circuit with degree of pollution 3 rated value	690 V
surge voltage resistance — of main circuit rated value	8 kV
surge voltage resistance — of auxiliary circuit rated value	6 kV
maximum permissible voltage for protective separation — in networks with grounded star point between auxiliary and auxiliary circuit	300 V
maximum permissible voltage for protective separation — in networks with grounded star point between main and auxiliary circuit	500 V
shock resistance at rectangular impulse — at DC	8.6 g / 5 ms, 5.1 g / 10 ms
shock resistance with sine pulse — at DC	13.5 g / 5 ms, 7.8 g / 10 ms
mechanical service life (operating cycles) — of contactor typical	5 000 000
reference code according to IEC 81346-2	Q
Substance Prohibitance (day/month/year)	03/01/2017
SVHC substance name	Lead CAS-No. 7439-92-1 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1
Net Weight	22.64 kg

Ambient conditions

installation altitude at height above sea level maximum	2 000 m
ambient temperature — during operation	-25 ... +55 °C
ambient temperature — during storage	-55 ... +80 °C
relative humidity minimum	10 %
relative humidity during operation	10 ... 95 %
relative humidity at 55 °C according to IEC 60068-2-30 maximum	95 %

Main circuit

number of poles for main current circuit	3
number of NO contacts for main contacts	3
number of NC contacts for main contacts	0
type of voltage for main current circuit	AC
operating voltage — at AC-3 rated value maximum	1 000 V
operating voltage — at AC-3e rated value maximum	1 000 V
operational current — at AC-1 — up to 690 V at ambient temperature 40 °C rated value	910 A
operational current — at AC-1 — up to 690 V at ambient temperature 55 °C rated value	850 A
operational current — at AC-3 — at 400 V rated value	820 A
operational current — at AC-3 — at 500 V rated value	820 A
operational current — at AC-3 — at 690 V rated value	820 A
operational current — at AC-3e — at 400 V rated value	630 A
operational current — at AC-3e — at 500 V rated value	630 A
operational current — at AC-3e — at 690 V rated value	630 A
operational current — at AC-4 at 400 V rated value	690 A
operational current — at AC-6a — up to 500 V for current peak value n=20 rated value	675 A
operational current — at AC-6a — up to 690 V for current peak value n=20 rated value	675 A
operational current — at AC-6a — up to 1000 V for current peak value n=20 rated value	580 A
operational current — at AC-6a — up to 400 V for current peak value n=30 rated value	450 A
operational current — at AC-6a — up to 500 V for current peak value n=30 rated value	450 A
operational current — at AC-6a — up to 690 V for current peak value n=30 rated value	450 A
operational current — at AC-6a — up to 1000 V for current peak value n=30 rated value	450 A
connectable conductor cross-section in main circuit at AC-1 — at 40 °C minimum permissible	600 mm²
operational current for approx. 200000 operating cycles at AC-4 — at 400 V rated value	360 A
operational current for approx. 200000 operating cycles at AC-4 — at 690 V rated value	360 A
operating power — at AC-3 — at 230 V rated value	260 kW
operating power — at AC-3 — at 400 V rated value	450 kW
operating power — at AC-3 — at 500 V rated value	600 kW
operating power — at AC-3 — at 690 V rated value	800 kW
operating power — at AC-3e — at 230 V rated value	200 kW
operating power — at AC-3e — at 400 V rated value	355 kW
operating power — at AC-3e — at 690 V rated value	600 kW
operating apparent power at AC-6a — up to 400 V for current peak value n=20 rated value	445 kVA
operating apparent power at AC-6a — up to 690 V for current peak value n=20 rated value	771 kVA
operating apparent power at AC-6a — up to 1000 V for current peak value n=20 rated value	1 003 kVA
operating apparent power at AC-6a — up to 400 V for current peak value n=30 rated value	297 kVA
operating apparent power at AC-6a — up to 690 V for current peak value n=30 rated value	514 kVA
operating apparent power at AC-6a — up to 1000 V for current peak value n=30 rated value	778 kVA
thermal short-time current limited to 10 s	7 000 A
power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor	70 W
power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor	42 W
no-load switching frequency at AC	1 000 1/h
operating frequency — at AC-1 maximum	700 1/h
operating frequency — at AC-3e — at 400 V maximum	500 1/h
operating frequency — at AC-3e — at 690 V maximum	500 1/h
operating frequency — at AC-2 at AC-3 maximum	200 1/h
operating frequency — at AC-2 at AC-3e maximum	200 1/h

Control circuit/ Control

type of voltage of the control supply voltage	DC
control supply voltage at DC rated value	24 V
operating range factor control supply voltage rated value of magnet coil at DC — initial value	0.8
operating range factor control supply voltage rated value of magnet coil at DC — full-scale value	1.1
apparent holding power — at minimum rated control supply voltage at DC	20.6 V·A
closing power of magnet coil at DC	960 W
holding power of magnet coil at DC	20.6 W
closing delay — at DC	86 ... 280 ms
opening delay — at DC	19 ... 25 ms
arcing time	10 ... 15 ms
control version of the switch operating mechanism	Standard A1 - A2

Auxiliary circuit

number of NC contacts for auxiliary contacts — attachable	3
number of NC contacts for auxiliary contacts — instantaneous contact	3
number of NO contacts for auxiliary contacts — attachable	3
number of NO contacts for auxiliary contacts — instantaneous contact	3
operational current at AC-12 maximum	10 A
operational current at AC-15 — at 230 V rated value	5.6 A
operational current at AC-15 — at 400 V rated value	3.6 A
operational current at AC-15 — at 500 V rated value	2.5 A
operational current at AC-15 — at 690 V rated value	2.3 A
operational current at DC-12 at 440 V rated value	0.33 A
operational current at DC-12 — at 24 V rated value	10 A
operational current at DC-12 — at 48 V rated value	10 A
operational current at DC-12 — at 110 V rated value	3.2 A
operational current at DC-12 — at 125 V rated value	2.5 A
operational current at DC-12 — at 220 V rated value	0.9 A
operational current at DC-12 — at 600 V rated value	0.22 A
operational current at DC-13 — at 24 V rated value	10 A
operational current at DC-13 — at 48 V rated value	5 A
operational current at DC-13 — at 110 V rated value	1.14 A
operational current at DC-13 — at 125 V rated value	0.98 A
operational current at DC-13 — at 220 V rated value	0.48 A
operational current at DC-13 — at 600 V rated value	0.07 A
contact reliability of auxiliary contacts	one incorrect switching operation of 100 million switching operations (17 V, 5 mA)

UL/CSA ratings

full-load current (FLA) for 3-phase AC motor — at 480 V rated value	820 A
full-load current (FLA) for 3-phase AC motor — at 600 V rated value	820 A
yielded mechanical performance [hp] — for 3-phase AC motor — at 200/208 V rated value	290 hp
yielded mechanical performance [hp] — for 3-phase AC motor — at 220/230 V rated value	350 hp
yielded mechanical performance [hp] — for 3-phase AC motor — at 460/480 V rated value	700 hp
yielded mechanical performance [hp] — for 3-phase AC motor — at 575/600 V rated value	860 hp
contact rating of auxiliary contacts according to UL	A600 / Q600

Short-circuit protection

design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 1 required	gG: 1250 A (690 V, 100 kA)
design of the fuse link — for short-circuit protection of the main circuit — with type of coordination 2 required	gG: 630 A (690 V, 50 kA), aM: 630 A (690 V, 50 kA), BS88: 630 A (690 V, 50 kA)
design of the fuse link — for short-circuit protection of the auxiliary switch required	fuse gG: 10 A

Installation/ mounting/ dimensions

mounting position	with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back
fastening method side-by-side mounting	Yes
fastening method	screw fixing
height	295 mm
width	230 mm
depth	237 mm
required spacing — with side-by-side mounting — forwards	20 mm
required spacing — with side-by-side mounting — upwards	10 mm
required spacing — with side-by-side mounting — downwards	10 mm
required spacing — with side-by-side mounting — at the side	10 mm
required spacing — for grounded parts — forwards	20 mm
required spacing — for grounded parts — upwards	10 mm
required spacing — for grounded parts — at the side	10 mm
required spacing — for grounded parts — downwards	10 mm
required spacing — for live parts — forwards	20 mm
required spacing — for live parts — upwards	10 mm
required spacing — for live parts — downwards	10 mm
required spacing — for live parts — at the side	10 mm

Connections/ Terminals

type of electrical connection — for main current circuit	Connection bar
type of electrical connection — for auxiliary and control circuit	screw-type terminals
type of electrical connection — at contactor for auxiliary contacts	Screw-type terminals
width of connection bar	40 mm
thickness of connection bar	6 mm
diameter of holes	13.5 mm
number of holes	1
type of connectable conductor cross-sections for main contacts — stranded	50 ... 240 mm²
type of connectable conductor cross-sections for main contacts — finely stranded with core end processing	50 ... 240 mm²
connectable conductor cross-section for main contacts — finely stranded with core end processing	240 ... 50 mm²
connectable conductor cross-section for auxiliary contacts — solid or stranded	0.5 ... 2.5 mm²
connectable conductor cross-section for auxiliary contacts — finely stranded with core end processing	0.5 ... 2.5 mm²
type of connectable conductor cross-sections — for auxiliary contacts — solid	2x (0.5 ... 1.0 mm²), 2x (1.0 ... 2.5 mm²)
type of connectable conductor cross-sections — for auxiliary contacts — finely stranded with core end processing	2x (0.5 ... 1.0 mm²), 2x (0.75 ... 2.5 mm²)
type of connectable conductor cross-sections — for AWG cables for auxiliary contacts	2x (18 ... 12)
AWG number as coded connectable conductor cross section for main contacts	500
AWG number as coded connectable conductor cross section for auxiliary contacts	18 ... 12

Safety related data

product function — mirror contact according to IEC 60947-4-1	Yes; One NC contact each must be connected in series for the right and left auxiliary switch block respectively
product function — positively driven operation according to IEC 60947-5-1	No
product function — suitable for safety function	Yes
service life maximum	20 a
test wear-related service life necessary	Yes
proportion of dangerous failures — with low demand rate according to SN 31920	40 %
proportion of dangerous failures — with high demand rate according to SN 31920	73 %
B10 value with high demand rate according to SN 31920	1 000 000
failure rate [FIT] with low demand rate according to SN 31920	100 FIT
device type according to ISO 13849-1	3
overdimensioning according to ISO 13849-2 necessary	Yes
safety device type according to IEC 61508-2	Type A
protection class IP on the front according to IEC 60529	IP00

Downloads & documentation

Official documents from Siemens, downloaded directly from the manufacturer.

Data sheets & manuals

Product data sheet 3TF6933-8DB4PDF

3TF6933-8DB4: frequently asked questions

When can 3TF6933-8DB4 be shipped?

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Is express delivery available?

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