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Siemens 3RT2026-1BB44-3MA0

power contactor, AC-3e/AC-3, 25 A, 11 kW / 400 V, 3-pole, 24 V DC, auxiliary contacts: 2 NO + 2 NC, screw terminal, size: S0, captive auxiliary switch, no surge suppressor retrofittable

SiemensMFR # 3RT2026-1BB44-3MA0SKU # CEY-937FC78E2C8B

product brand nameSIRIUS

product designationPower contactor

product type designation3RT2

size of contactorS0

function module for communicationNo

auxiliary switchNo

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About This Product

power contactor, AC-3e/AC-3, 25 A, 11 kW / 400 V, 3-pole, 24 V DC, auxiliary contacts: 2 NO + 2 NC, screw terminal, size: S0, captive auxiliary switch, no surge suppressor retrofittable

Siemens 3RT2026-1BB44-3MA0

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Specifications

product brand nameSIRIUS

product designationPower contactor

product type designation3RT2

General technical data

size of contactorS0

function module for communicationNo

auxiliary switchNo

at AC in hot operating state5.7 W

at AC in hot operating state per pole1.9 W

without load current share typical5.9 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 name2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol (UV-329) CAS-No. 3147-75-9

Net Weight648.666 g

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 maximum690 V

at AC-3e rated value maximum690 V

at AC-1 at 400 V at ambient temperature 40 °C rated value40 A

— up to 690 V at ambient temperature 40 °C rated value40 A

— up to 690 V at ambient temperature 60 °C rated value35 A

— at 400 V rated value25 A

— at 500 V rated value18 A

— at 690 V rated value13 A

— at 400 V rated value25 A

— at 500 V rated value18 A

— at 690 V rated value13 A

at AC-4 at 400 V rated value15.5 A

at AC-5a up to 690 V rated value35.2 A

at AC-5b up to 400 V rated value20.7 A

— up to 230 V for current peak value n=20 rated value20.2 A

— up to 400 V for current peak value n=20 rated value20.2 A

— up to 500 V for current peak value n=20 rated value20.2 A

— up to 690 V for current peak value n=20 rated value12.9 A

— up to 230 V for current peak value n=30 rated value13.5 A

— up to 400 V for current peak value n=30 rated value13.5 A

— up to 500 V for current peak value n=30 rated value13.5 A

— up to 690 V for current peak value n=30 rated value13 A

minimum cross-section in main circuit at maximum AC-1 rated value10 mm²

at 400 V rated value9 A

at 690 V rated value9 A

— at 24 V rated value35 A

— at 60 V rated value20 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 60 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 60 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 60 V rated value5 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 60 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 60 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 230 V rated value5.5 kW

— at 400 V rated value11 kW

— at 500 V rated value11 kW

— at 690 V rated value11 kW

— at 230 V rated value5.5 kW

— at 400 V rated value11 kW

— at 500 V rated value11 kW

— at 690 V rated value11 kW

at 400 V rated value4.4 kW

at 690 V rated value7.7 kW

up to 230 V for current peak value n=20 rated value8 kVA

up to 400 V for current peak value n=20 rated value13.9 kVA

up to 500 V for current peak value n=20 rated value17.4 kVA

up to 690 V for current peak value n=20 rated value15.4 kVA

up to 230 V for current peak value n=30 rated value5.3 kVA

up to 400 V for current peak value n=30 rated value9.3 kVA

up to 500 V for current peak value n=30 rated value11.6 kVA

up to 690 V for current peak value n=30 rated value15.5 kVA

limited to 1 s switching at zero current maximum375 A; Use minimum cross-section acc. to AC-1 rated value

limited to 5 s switching at zero current maximum300 A; Use minimum cross-section acc. to AC-1 rated value

limited to 10 s switching at zero current maximum210 A; Use minimum cross-section acc. to AC-1 rated value

limited to 30 s switching at zero current maximum144 A; Use minimum cross-section acc. to AC-1 rated value

limited to 60 s switching at zero current maximum118 A; Use minimum cross-section acc. to AC-1 rated value

at DC1 500 1/h

at AC-1 maximum1 000 1/h

at AC-2 maximum750 1/h

at AC-3 maximum750 1/h

— maximum750 1/h

at AC-4 maximum250 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

closing power of magnet coil at DC5.9 W

holding power of magnet coil at DC5.9 W

at DC50 ... 170 ms

at DC15 ... 18 ms

arcing time10 ms

control version of the switch operating mechanismStandard A1 - A2

Auxiliary circuit

design of the auxiliary switchon the front, non-detachable

number of NC contacts for auxiliary contacts instantaneous contact2

number of NO contacts for auxiliary contacts instantaneous contact2

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 value6 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 value21 A

at 600 V rated value22 A

— at 110/120 V rated value2 hp

— at 230 V rated value3 hp

— at 200/208 V rated value5 hp

— at 220/230 V rated value7.5 hp

— at 460/480 V rated value15 hp

— at 575/600 V rated value20 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: 100 A (690 V, 100 kA), aM: 50 A (690 V, 100 kA), BS88: 100 A (415 V, 80 kA)

— with type of coordination 2 requiredgG: 35 A (690 V, 100 kA), aM: 20 A (690 V, 100 kA), BS88: 35 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

height85 mm

width45 mm

depth151 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 circuitscrew-type terminals

for auxiliary and control circuitscrew-type terminals

at contactor for auxiliary contactsScrew-type terminals

of magnet coilscrew terminal

— solid2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)

— solid or stranded2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)

— finely stranded with core end processing2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²

for AWG cables for main contacts2x (16 ... 12), 2x (14 ... 8)

solid1 ... 10 mm²

stranded1 ... 10 mm²

finely stranded with core end processing1 ... 10 mm²

solid or stranded0.5 ... 2.5 mm²

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

— solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)

— finely stranded with core end processing2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)

for AWG cables for auxiliary contacts2x (20 ... 16), 2x (18 ... 14)

AWG number as coded connectable conductor cross section for main contacts16 ... 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

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing2.65 kg

global warming potential [CO2 eq] / during operation219 kg

global warming potential [CO2 eq] / after end of life-0.639 kg

global warming potential [CO2 eq] / total221 kg

Accessories 47

Genuine accessories that can be used with the Siemens 3RT2026-1BB44-3MA0 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
3RV2925-5AB	Aksesuar · Plugs, adapters and terminals · infeed terminals
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3RT2926-1ER00	Aksesuar · Surge suppressor · diode assemblies
3RA2922-2H	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RT1926-4BA31	Aksesuar · Wiring modules, connectors and kits · coil connectors
3RA2923-2AA1	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RT2926-4RB11	Aksesuar · Coil connection modules · coil connection modules
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3RA2923-2BB1	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
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3RT2927-2PA01	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
3RT2927-2PR01	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
3RT2926-1CB00	Aksesuar · Surge suppressor · RC elements
3RT2900-1SB10	Aksesuar · Miscellaneous accessories · labeling plates
3RT2926-1JJ00	Aksesuar · Surge suppressor · varistors
3RT2916-4MA10	Aksesuar · Sealing covers · sealing covers
3RT2926-1MR00	Aksesuar · Surge suppressor · diode assemblies
3RT2926-3AB31	Aksesuar · Latching blocks · mechanical latching blocks
3RT2900-1SB60	Aksesuar · Miscellaneous accessories · labeling plates
3RA2923-3DA1	Aksesuar · Wiring modules, connectors and kits · wiring kits
3RA2816-0EW20	Aksesuar
3RA2923-3EA1	Aksesuar · Wiring modules, connectors and kits · wiring kits
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3RH2914-1GP11	Aksesuar · Coupling links · coupling links
3RA2811-1CW10	Aksesuar
3RT2926-1QT00	Aksesuar · LED modules · LED display indicator modules
3RA2812-1DW10	Aksesuar
3RT2926-3AF31	Aksesuar · Latching blocks · mechanical latching blocks
3RT2926-3AP31	Aksesuar · Latching blocks · mechanical latching blocks
3RT2916-2BL01	Aksesuar · OFF-delay device · OFF-delay device
3RT2916-2BE01	Aksesuar · OFF-delay device · OFF-delay device
3RT2916-2BK01	Aksesuar · OFF-delay device · OFF-delay device
3RT2927-2PR11	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
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3RR2242-1FA30	Aksesuar
3RR2142-1AA30	Aksesuar
3RT2927-2PA11	Aksesuar · Pneumatic delay blocks · pneumatic delay blocks
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