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Siemens 3RT2028-2XB40-0LA2

traction contactor, AC-3e/AC-3, 38 A, 18.5 kW / 400 V, 3-pole, 24 V DC, 0.7-1.25* Uc, solid-state operating mechanism, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, spring-loaded terminal, frame size: S0

SiemensMFR # 3RT2028-2XB40-0LA2SKU # CEY-8EF3B0393CA2

product brand nameSIRIUS

product designationPower contactor

design of the productWith extended operating range

product type designation3RT2

size of contactorS0

function module for communicationNo

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About This Product

Siemens 3RT2028-2XB40-0LA2

Genuine, certified Siemens product
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Specifications

product brand nameSIRIUS

product designationPower contactor

design of the productWith extended operating range

product type designation3RT2

General technical data

size of contactorS0

function module for communicationNo

auxiliary switchYes

at AC in hot operating state11.4 W

at AC in hot operating state per pole3.8 W

without load current share typical1.4 W

type of calculation of power loss current-dependentquadratic

of main circuit with degree of pollution 3 rated value690 V

of auxiliary circuit with degree of pollution 3 rated value690 V

of main circuit rated value6 kV

of auxiliary circuit rated value6 kV

maximum permissible voltage for protective separation between coil and main contacts according to EN 60947-1400 V

at DC10g / 5 ms, 7,5g / 10 ms

at DC15 g / 5 ms, 10 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)10/01/2009

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 Weight0.596 kg

Ambient conditions

installation altitude at height above sea level maximum2 000 m

during operation-40 ... +70 °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

at AC-3 rated value maximum690 V

at AC-3e rated value maximum690 V

at AC-1 at 400 V at ambient temperature 40 °C rated value50 A

— up to 690 V at ambient temperature 40 °C rated value50 A

— up to 690 V at ambient temperature 60 °C rated value42 A

at AC-2 at 400 V rated value38 A

— at 400 V rated value38 A

— at 500 V rated value32 A

— at 690 V rated value21 A

— at 400 V rated value38 A

— at 500 V rated value32 A

— at 690 V rated value21 A

at AC-4 at 400 V rated value22 A

at maximum AC-1 rated value10 mm²

at maximum Ith rated value10 mm²

at 400 V rated value12 A

at 690 V rated value12 A

— at 24 V rated value35 A

— at 110 V rated value4.5 A

— at 220 V rated value1 A

— at 440 V rated value0.4 A

— at 600 V rated value0.25 A

— at 24 V rated value35 A

— at 110 V rated value35 A

— at 220 V rated value5 A

— at 440 V rated value1 A

— at 600 V rated value0.8 A

— at 24 V rated value35 A

— at 110 V rated value35 A

— at 220 V rated value35 A

— at 440 V rated value2.9 A

— at 600 V rated value1.4 A

— at 24 V rated value20 A

— at 110 V rated value2.5 A

— at 220 V rated value1 A

— at 440 V rated value0.09 A

— at 600 V rated value0.06 A

— at 24 V rated value35 A

— at 110 V rated value15 A

— at 220 V rated value3 A

— at 440 V rated value0.27 A

— at 600 V rated value0.16 A

— at 24 V rated value35 A

— at 110 V rated value35 A

— at 220 V rated value10 A

— at 440 V rated value0.6 A

— at 600 V rated value0.6 A

at AC-2 at 400 V rated value18.5 kW

— at 230 V rated value11 kW

— at 400 V rated value18.5 kW

— at 500 V rated value18.5 kW

— at 690 V rated value18.5 kW

— at 230 V rated value11 kW

— at 400 V rated value18.5 kW

— at 500 V rated value18.5 kW

— at 690 V rated value18.5 kW

at 400 V rated value6 kW

at 690 V rated value10.3 kW

limited to 1 s switching at zero current maximum593 A; Use minimum cross-section acc. to AC-1 rated value

limited to 5 s switching at zero current maximum341 A; Use minimum cross-section acc. to AC-1 rated value

limited to 10 s switching at zero current maximum260 A; Use minimum cross-section acc. to AC-1 rated value

limited to 30 s switching at zero current maximum199 A; Use minimum cross-section acc. to AC-1 rated value

limited to 60 s switching at zero current maximum162 A; Use minimum cross-section acc. to AC-1 rated value

at DC1 500 1/h

at AC-1 maximum750 1/h

at AC-2 maximum750 1/h

at AC-3 maximum750 1/h

— maximum750 1/h

at AC-2 at AC-3e maximum750 1/h

at AC-4 maximum250 1/h

Ratings for railway applications

up to 40 °C according to IEC 60077 rated value50 A

up to 70 °C according to IEC 60077 rated value38 A

Control circuit/ Control

type of voltageDC

type of voltage of the control supply voltageDC

control supply voltage at DC rated value24 V

initial value0.7

full-scale value1.25

design of the surge suppressorwith varistor

inrush current peak3 A

duration of inrush current peak30 µs

pickup current mean value0.3 A

pickup current peak0.52 A

duration of pickup current180 ms

holding current mean value45 mA

closing power of magnet coil at DC6.7 W

holding power of magnet coil at DC1.4 W

at DC50 ... 75 ms

at DC30 ... 50 ms

arcing time10 ms

control version of the switch operating mechanismStandard A1 - A2

Auxiliary circuit

number of NC contacts for auxiliary contacts1

instantaneous contact1

number of NO contacts for auxiliary contacts1

instantaneous contact1

operational current at AC-12 maximum10 A

at 230 V rated value10 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

UL/CSA ratings

at 480 V rated value34 A

at 600 V rated value27 A

— at 110/120 V rated value3 hp

— at 230 V rated value5 hp

— at 200/208 V rated value10 hp

— at 220/230 V rated value10 hp

— at 460/480 V rated value25 hp

— at 575/600 V rated value25 hp

contact rating of auxiliary contacts according to ULA600 / Q600

UL File Number (CCN)E31519 (NLDX, NLDX7)

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: 125 A (690 V,100 kA), aM: 50 A (690 V,100 kA), BS88: 125 A (415 V,80 kA)

— with type of coordination 2 requiredgG: 50 A (690 V, 100 kA), aM: 25 A (690 V, 100 kA), BS88: 50 A (415 V, 80 kA)

for short-circuit protection of the auxiliary switch requiredgG: 10 A (690 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

height102 mm

width45 mm

depth107 mm

— forwards10 mm

— upwards10 mm

— downwards10 mm

— at the side0 mm

— forwards10 mm

— upwards10 mm

— at the side6 mm

— downwards10 mm

— forwards10 mm

— upwards10 mm

— downwards10 mm

— at the side6 mm

Connections/ Terminals

for main current circuitspring-loaded terminals

for auxiliary and control circuitspring-loaded terminals

at contactor for auxiliary contactsSpring-type terminals

of magnet coilSpring-loaded terminal

— solid2x (1 ... 10 mm²)

— solid or stranded2x (1 ... 10 mm²)

— finely stranded with core end processing2x (1 ... 6 mm²)

— finely stranded without core end processing2x (1 ... 6 mm²)

for AWG cables for main contacts2x (18 ... 8)

— 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 ... 14)

AWG number as coded connectable conductor cross section for main contacts18 ... 8

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

Communication/ Protocol

product function bus communicationNo

Accessories 54

Genuine accessories that can be used with the Siemens 3RT2028-2XB40-0LA2 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
3RT2926-1ER00	Aksesuar · Surge suppressor · diode assemblies
3RH2911-2HA22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FA22	Aksesuar · Auxiliary switch · auxiliary switches
3RT2926-1CB00	Aksesuar · Surge suppressor · RC elements
3RH2911-2XA22-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
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
3RH2911-2XA31-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RA2813-2FW10	Aksesuar
3RT2927-2PA01	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
3RT2927-2PR01	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
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
3RH2911-2NE21	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA04-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NL22	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
3RT2927-2PA11	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
3RT2927-2PR11	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
3RH2911-2NF20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2XA11-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NF11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NF22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA13	Aksesuar · Auxiliary switch · auxiliary switches
3RT2926-1MR00	Aksesuar · Surge suppressor · diode assemblies
3RH2916-2FA22	Aksesuar · Auxiliary switch · auxiliary switches
3RA2813-2AW10	Aksesuar
3RA2814-2AW10	Aksesuar
3RA2814-2FW10	Aksesuar
3RA2815-2AW10	Aksesuar
3RA2815-2FW10	Aksesuar
3RH2911-2NF02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NL40	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2HA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FB11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FB22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2FC22	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-2DA02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-2NM31	Aksesuar · Auxiliary switch · auxiliary switches