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Siemens 3TF6933-1DB4

vacuum contactor AC-3e 630 A, 335 kW / 400 V, AC-3 820 A, 450 kW / 400 V, Ue 690 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

SiemensMFR # 3TF6933-1DB4SKU # CEY-8EF3B038E57C

product designationVacuum contactor

product type designation3TF6

size of contactor14

function module for communicationNo

auxiliary switchNo

of main circuit rated value8 kV

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About This Product

Siemens 3TF6933-1DB4

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Specifications

product designationVacuum contactor

product type designation3TF6

General technical data

size of contactor14

function module for communicationNo

auxiliary switchNo

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 DC8.6 g / 5 ms, 5.1 g / 10 ms

at DC13.5 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-No. 7439-92-1

Net Weight22.962 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 maximum690 V

at AC-3e rated value maximum690 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 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

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 400 V for current peak value n=30 rated value297 kVA

up to 690 V for current peak value n=30 rated value514 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 AC1 000 1/h

at AC-1 maximum700 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 voltageDC

control supply voltage at DC rated value24 V

initial value0.8

full-scale value1.1

at minimum rated control supply voltage at DC20.6 V·A

closing power of magnet coil at DC960 W

holding power of magnet coil at DC20.6 W

at DC86 ... 280 ms

at DC19 ... 25 ms

arcing time10 ... 15 ms

control version of the switch operating mechanismStandard A1 - A2

Auxiliary circuit

attachable3

instantaneous contact3

attachable3

instantaneous contact3

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 vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back

fastening method side-by-side mountingYes

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 60947-4-1Yes; One NC contact each must be connected in series for the right and left auxiliary switch block respectively

positively driven operation according to IEC 60947-5-1No

suitable for safety functionYes

service life maximum20 a

test wear-related service life necessaryYes

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 necessaryYes

IEC 61508

safety device type according to IEC 61508-2Type A

Electrical Safety

protection class IP on the front according to IEC 60529IP00

Accessories 4

Genuine accessories that can be used with the Siemens 3TF6933-1DB4 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.

Part no	Description	Compatible motors
3TX7572-3G	Aksesuar · Surge suppressor · varistors
3TX7572-3J	Aksesuar · Surge suppressor · varistors
3TX7686-0A	Aksesuar · Terminal covers · terminal covers
3TX7696-0A	Aksesuar · Terminal covers · terminal covers