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Siemens 3RT2045-3KB40

power contactor, AC-3e/AC-3, 80 A, 37 kW / 400 V, 3-pole, 24 V DC, 0.8-1.2* Uc, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, integrated varistor, main circuit: screw terminal, control and auxiliary circuit: spring-loaded terminal, frame size: S3, suitable for PLC outputs

SiemensMFR # 3RT2045-3KB40SKU # CEY-8EF3B02C7DF4

product brand nameSIRIUS

product designationPower contactor

product type designation3RT2

size of contactorS3

function module for communicationNo

auxiliary switchYes

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About This Product

Siemens 3RT2045-3KB40

Genuine, certified Siemens product
Fast sourcing through a worldwide supply network
Product selection and compatibility support from our technical team
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Specifications

product brand nameSIRIUS

product designationPower contactor

product type designation3RT2

General technical data

size of contactorS3

function module for communicationNo

auxiliary switchYes

at AC in hot operating state15.9 W

at AC in hot operating state per pole5.3 W

without load current share typical0.9 W

type of calculation of power loss current-dependentquadratic

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

maximum permissible voltage for protective separation between coil and main contacts according to EN 60947-1690 V

at AC10.3 g / 5 ms, 6,7 g / 10 ms

at DC6.3 g / 5 ms, 3.6 g / 10 ms

at AC16.3 g / 5 ms, 10.5 g / 10 ms

at DC9.8 g / 5 ms, 5.6 g / 10 ms

of contactor typical10 000 000

of the contactor with added electronically optimized auxiliary switch block typical5 000 000

of the contactor with added auxiliary switch block typical10 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 Lead monoxide (lead oxide) CAS-No. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1

Net Weight1.768 kg

Ambient conditions

installation altitude at height above sea level maximum2 000 m

during operation-25 ... +60 °C

during storage-55 ... +80 °C

relative humidity minimum10 %

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

at AC-3 rated value maximum1 000 V

at AC-3e rated value maximum1 000 V

at AC-1 at 400 V at ambient temperature 40 °C rated value125 A

— up to 690 V at ambient temperature 40 °C rated value125 A

— up to 690 V at ambient temperature 60 °C rated value105 A

— at 400 V rated value80 A

— at 500 V rated value80 A

— at 690 V rated value58 A

— at 1000 V rated value30 A

— at 400 V rated value80 A

— at 500 V rated value80 A

— at 690 V rated value58 A

— at 1000 V rated value30 A

at AC-4 at 400 V rated value66 A

at AC-5a up to 690 V rated value110 A

at AC-5b up to 400 V rated value80 A

— up to 230 V for current peak value n=20 rated value80 A

— up to 400 V for current peak value n=20 rated value80 A

— up to 500 V for current peak value n=20 rated value80 A

— up to 690 V for current peak value n=20 rated value58 A

— up to 230 V for current peak value n=30 rated value54 A

— up to 400 V for current peak value n=30 rated value54 A

— up to 500 V for current peak value n=30 rated value54 A

— up to 690 V for current peak value n=30 rated value54 A

minimum cross-section in main circuit at maximum AC-1 rated value50 mm²

at 400 V rated value34 A

at 690 V rated value24 A

— at 24 V rated value100 A

— at 60 V rated value60 A

— at 110 V rated value9 A

— at 220 V rated value2 A

— at 440 V rated value0.6 A

— at 600 V rated value0.4 A

— at 24 V rated value100 A

— at 60 V rated value100 A

— at 110 V rated value100 A

— at 220 V rated value10 A

— at 440 V rated value1.8 A

— at 600 V rated value1 A

— at 24 V rated value100 A

— at 60 V rated value100 A

— at 110 V rated value100 A

— at 220 V rated value80 A

— at 440 V rated value4.5 A

— at 600 V rated value2.6 A

— at 24 V rated value40 A

— at 60 V rated value6 A

— at 110 V rated value2.5 A

— at 220 V rated value1 A

— at 440 V rated value0.15 A

— at 600 V rated value0.06 A

— at 24 V rated value100 A

— at 60 V rated value100 A

— at 110 V rated value100 A

— at 220 V rated value7 A

— at 440 V rated value0.42 A

— at 600 V rated value0.16 A

— at 24 V rated value100 A

— at 60 V rated value100 A

— at 110 V rated value100 A

— at 220 V rated value35 A

— at 440 V rated value0.8 A

— at 600 V rated value0.35 A

at AC-2 at 400 V rated value37 kW

— at 230 V rated value22 kW

— at 400 V rated value37 kW

— at 500 V rated value45 kW

— at 690 V rated value55 kW

— at 1000 V rated value37 kW

— at 230 V rated value22 kW

— at 400 V rated value37 kW

— at 500 V rated value45 kW

— at 690 V rated value55 kW

— at 1000 V rated value37 kW

at 400 V rated value17.9 kW

at 690 V rated value21.8 kW

up to 230 V for current peak value n=20 rated value31 kVA

up to 400 V for current peak value n=20 rated value55 kVA

up to 500 V for current peak value n=20 rated value69 kVA

up to 690 V for current peak value n=20 rated value69 kVA

up to 230 V for current peak value n=30 rated value21.5 kVA

up to 400 V for current peak value n=30 rated value37.4 kVA

up to 500 V for current peak value n=30 rated value46.7 kVA

up to 690 V for current peak value n=30 rated value64.5 kVA

limited to 1 s switching at zero current maximum1 500 A; Use minimum cross-section acc. to AC-1 rated value

limited to 5 s switching at zero current maximum1 186 A; Use minimum cross-section acc. to AC-1 rated value

limited to 10 s switching at zero current maximum851 A; Use minimum cross-section acc. to AC-1 rated value

limited to 30 s switching at zero current maximum538 A; Use minimum cross-section acc. to AC-1 rated value

limited to 60 s switching at zero current maximum423 A; Use minimum cross-section acc. to AC-1 rated value

at DC1 000 1/h

at AC-1 maximum900 1/h

at AC-2 maximum400 1/h

at AC-3 maximum1 000 1/h

— maximum1 000 1/h

at AC-4 maximum300 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 value1.2

design of the surge suppressorwith varistor

inrush current peak2.7 A

duration of inrush current peak50 µs

pickup current mean value0.9 A

pickup current peak2.1 A

duration of pickup current150 ms

holding current mean value40 mA

closing power of magnet coil at DC25 W

holding power of magnet coil at DC0.9 W

at DC50 ... 70 ms

at DC38 ... 57 ms

arcing time10 ... 20 ms

control version of the switch operating mechanismStandard A1 - A2

Auxiliary circuit

number of NC contacts for auxiliary contacts instantaneous contact1

number of NO contacts for auxiliary contacts instantaneous contact1

operational current at AC-12 maximum10 A

at 230 V rated value6 A

at 400 V rated value3 A

at 500 V rated value2 A

at 690 V rated value1 A

at 24 V rated value10 A

at 48 V rated value6 A

at 60 V rated value6 A

at 110 V rated value3 A

at 125 V rated value2 A

at 220 V rated value1 A

at 600 V rated value0.15 A

at 24 V rated value10 A

at 48 V rated value2 A

at 60 V rated value2 A

at 110 V rated value1 A

at 125 V rated value0.9 A

at 220 V rated value0.3 A

at 600 V rated value0.1 A

contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)

UL/CSA ratings

at 480 V rated value77 A

at 600 V rated value62 A

— at 110/120 V rated value7.5 hp

— at 230 V rated value15 hp

— at 200/208 V rated value25 hp

— at 220/230 V rated value30 hp

— at 460/480 V rated value60 hp

— at 575/600 V rated value60 hp

contact rating of auxiliary contacts according to ULA600 / P600

Short-circuit protection

design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 VC characteristic: 10 A; 0.4 kA

— with type of coordination 1 requiredgG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)

— with type of coordination 2 requiredgG: 160 A (690 V, 100 kA), aM: 80 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)

for short-circuit protection of the auxiliary switch requiredgG: 10 A (500 V, 1 kA)

Installation/ mounting/ dimensions

mounting position+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface

fastening method side-by-side mountingYes

fastening methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715

height140 mm

width70 mm

depth152 mm

— forwards20 mm

— upwards10 mm

— downwards10 mm

— at the side0 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 circuitscrew-type terminals

for auxiliary and control circuitspring-loaded terminals

at contactor for auxiliary contactsSpring-type terminals

of magnet coilSpring-loaded terminal

— finely stranded with core end processing2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²)

for AWG cables for main contacts2x (10 ... 1/0), 1x (10 ... 2/0)

solid2.5 ... 16 mm²

stranded6 ... 70 mm²

finely stranded with core end processing2.5 ... 50 mm²

solid or stranded0.5 ... 2.5 mm²

finely stranded with core end processing0.5 ... 2.5 mm²

finely stranded without core end processing0.5 ... 2.5 mm²

— solid or stranded2x (0.5 ... 2.5 mm²)

— finely stranded with core end processing2x (0.5 ... 1.5 mm²)

— finely stranded without core end processing2x (0.5 ... 2.5 mm²)

for AWG cables for auxiliary contacts2x (20 ... 16)

AWG number extended as coded connectable conductor cross section for main contacts10 ... 2/0

AWG number as coded connectable conductor cross section for auxiliary contacts20 ... 14

Safety related data

mirror contact according to IEC 60947-4-1Yes

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

suitable for safety functionYes

suitability for use safety-related switching OFFYes

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 60529IP20

touch protection on the front according to IEC 60529finger-safe, for vertical contact from the front

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing9.35 kg

global warming potential [CO2 eq] / during operation259 kg

global warming potential [CO2 eq] / after end of life-1.55 kg

global warming potential [CO2 eq] / total267 kg

Accessories 78

Genuine accessories that can be used with the Siemens 3RT2045-3KB40 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
3RH2911-2HA22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FA22	Aksesuar · Auxiliary switch · auxiliary switches
3RT2946-4G	Aksesuar · Terminal covers · box terminal blocks
3RH2911-2XA22-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RA2942-2F	Aksesuar · Base plates · base plates
3RT2936-1ER00	Aksesuar · Surge suppressor · diode assemblies
3RH2911-2FA40	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DE11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA31	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA12	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA40-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA01	Aksesuar · Auxiliary switch · auxiliary switches
3RA2934-2B	Aksesuar · Mechanical interlocks · mechanical interlocks
3RH2911-2XA31-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RT2936-4MC00	Aksesuar · Miscellaneous accessories · Control Kits
3RA2943-3L	Aksesuar · Plugs, adapters and terminals · infeed terminals
3RH2914-2GP11	Aksesuar · Coupling links · coupling links
3RT2900-1SB10	Aksesuar · Miscellaneous accessories · labeling plates
3RT2916-4MA10	Aksesuar · Sealing covers · sealing covers
3RT2946-1CB00	Aksesuar · Surge suppressor · RC elements
3RA2813-2FW10	Aksesuar
3RT2900-1SB60	Aksesuar · Miscellaneous accessories · labeling plates
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
3RT1946-4BB31	Aksesuar · Wiring modules, connectors and kits · coil connectors
3RA2816-0EW20	Aksesuar
3RA2943-2AA1	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RT2946-4F	Aksesuar · Terminal covers · auxiliary conductor terminals
3RH2911-2HA13	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NF02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NF11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NF20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DA02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FA04	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA03	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FB22-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA10	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA21	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA30	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA04-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA11-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA13-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA20-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XB22-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2916-2XA22-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NL22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NL40	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NM31	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NE21	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FC22	Aksesuar · Auxiliary switch · auxiliary switches
3RA2943-2BB1	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RH2911-2FB11	Aksesuar · Auxiliary switch · auxiliary switches
3RA2932-2D	Aksesuar · Mechanical interlocks · mechanical connectors
3RA2943-2C	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RA1943-3D	Aksesuar · Wiring modules, connectors and kits · link modules
3RA1943-3E	Aksesuar · Wiring modules, connectors and kits · link modules
3RA1953-3G	Aksesuar · Wiring modules, connectors and kits · link rails
3RA1954-2G	Aksesuar · Mechanical interlocks · mechanical connectors
3RA2831-2DG10	Aksesuar
3RA2831-2DH10	Aksesuar
3RA2832-2DG10	Aksesuar
3RA2832-2DH10	Aksesuar
3RA2908-1A	Aksesuar · Miscellaneous accessories · screwdrivers
3RT2916-2BE01	Aksesuar · OFF-delay device · OFF-delay device
3RT1946-4BA31	Aksesuar · Wiring modules, connectors and kits · coil connectors
3RH2911-2NF22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2916-2FA22	Aksesuar · Auxiliary switch · auxiliary switches
3RA2813-2AW10	Aksesuar
3RA2814-2AW10	Aksesuar
3RA2814-2FW10	Aksesuar
3RA2815-2AW10	Aksesuar
3RA2815-2FW10	Aksesuar
3RH2911-2HA02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FB22	Aksesuar · Auxiliary switch · auxiliary switches
3RT2945-6A	Yedek parça · Contact pieces and vacuum interrupters · contacts