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Siemens 3RT2544-1AL20

power contactor, AC-3, 65 A, 30 kW / 400 V, 4-pole, 230 V AC, 50/60 Hz, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3

SiemensMFR # 3RT2544-1AL20SKU # YLSZGF8E2GI7TZH

product brand nameSIRIUS

product designationcontactor

product type designation3RT25

size of contactorS3

function module for communicationNo

auxiliary switchYes

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About This Product

power contactor, AC-3, 65 A, 30 kW / 400 V, 4-pole, 230 V AC, 50/60 Hz, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3

Siemens 3RT2544-1AL20

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 designationcontactor

product type designation3RT25

General technical data

size of contactorS3

function module for communicationNo

auxiliary switchYes

at AC in hot operating state per pole3.5 W

without load current share typical8.8 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 AC6.7 g / 5 ms, 4.0 g / 10 ms

at AC10.6 g / 5 ms, 6.3 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)09/01/2017

Net Weight1.909 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 circuit4

number of NO contacts for main contacts2

number of NC contacts for main contacts2

— at ambient temperature 40 °C rated value100 A

— at ambient temperature 60 °C rated value90 A

— per NO contact rated value65 A

— per NC contact rated value65 A

minimum cross-section in main circuit at maximum AC-1 rated value35 mm²

— at 24 V rated value100 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 110 V rated value100 A

— at 220 V rated value10 A

— at 440 V rated value1.8 A

— at 24 V per NC contact rated value40 A

— at 24 V per NO contact rated value40 A

— at 110 V per NC contact rated value2.5 A

— at 110 V per NO contact rated value2.5 A

— at 220 V per NC contact rated value1 A

— at 220 V per NO contact rated value1 A

— at 440 V per NC contact rated value0.15 A

— at 440 V per NO contact rated value0.15 A

— at 24 V per NC contact rated value100 A

— at 24 V per NO contact rated value100 A

— at 110 V per NC contact rated value100 A

— at 110 V per NO contact rated value100 A

— at 220 V per NC contact rated value7 A

— at 220 V per NO contact rated value7 A

— at 440 V per NC contact rated value0.42 A

— at 440 V per NO contact rated value0.42 A

at 230 V per NC contact rated value18.5 kW

at 230 V per NO contact rated value18.5 kW

at 400 V per NC contact rated value30 kW

at 400 V per NO contact rated value30 kW

limited to 1 s switching at zero current maximum880 A; Use minimum cross-section acc. to AC-1 rated value

limited to 5 s switching at zero current maximum880 A; Use minimum cross-section acc. to AC-1 rated value

limited to 10 s switching at zero current maximum691 A; Use minimum cross-section acc. to AC-1 rated value

limited to 30 s switching at zero current maximum437 A; Use minimum cross-section acc. to AC-1 rated value

limited to 60 s switching at zero current maximum344 A; Use minimum cross-section acc. to AC-1 rated value

power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor3.5 W

power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor3.5 W

at AC5 000 1/h

at AC-1 maximum900 1/h

Control circuit/ Control

type of voltage of the control supply voltageAC

at 50 Hz rated value230 V

at 60 Hz rated value230 V

at 50 Hz0.8 ... 1.1

at 60 Hz0.85 ... 1.1

apparent pick-up power of magnet coil at AC348 V·A

at 50 Hz348 V·A

at 60 Hz296 V·A

inductive power factor with closing power of the coil0.62

at 50 Hz25

at 60 Hz18

apparent holding power of magnet coil at AC25 V·A

at 50 Hz0.62 V·A

at 60 Hz0.55 V·A

inductive power factor with the holding power of the coil0.35

at 50 Hz0.35

at 60 Hz0.41

at AC13 ... 50 ms

at AC11 ... 21 ms

arcing time10 ... 20 ms

control version of the switch operating mechanismAC

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

for 3-phase AC motor at 460/480 V rated value25 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)

— with type of coordination 2 requiredgR: 250 A (690 V, 100 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

height140 mm

width70 mm

depth152 mm

— forwards0 mm

— backwards0 mm

— upwards0 mm

— downwards0 mm

— at the side0 mm

— forwards0 mm

— backwards0 mm

— upwards10 mm

— at the side10 mm

— downwards10 mm

— forwards0 mm

— backwards0 mm

— upwards10 mm

— downwards10 mm

— at the side10 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 (2.5 ... 16 mm²)

— stranded2x (6 ... 16 mm²), 2x (10 ... 50 mm²), 1x (10 ... 70 mm²)

— solid or stranded2x (2.5 ... 16 mm²); [2x (6 ... 16 mm²), 2x (10 ... 50 mm²), 1x (10 ... 70 mm²)]

— 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)

— solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 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 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

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

Accessories 49

Genuine accessories that can be used with the Siemens 3RT2544-1AL20 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
3RH2911-1LA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1FA40	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA31	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-1DA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-1DA11	Aksesuar · Auxiliary switch · auxiliary switches
3RT2936-1BD00	Aksesuar · Surge suppressor · varistors
3RH2911-1HA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1XA31-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RT2946-1CD00	Aksesuar · Surge suppressor · RC elements
3RH2911-1HA01	Aksesuar · Auxiliary switch · auxiliary switches
3RT2926-4RB11	Aksesuar · Coil connection modules · coil connection modules
3RH2914-1GP11	Aksesuar · Coupling links · coupling links
3RA2813-1FW10	Aksesuar
3RH2911-1HA10	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1NF11	Aksesuar · Auxiliary switch · auxiliary switches
3RT2936-4MC00	Aksesuar · Miscellaneous accessories · Control Kits
3RT2946-4EA4	Aksesuar · Terminal covers · terminal covers
3RH2911-1NF20	Aksesuar · Auxiliary switch · auxiliary switches
3RT2900-1SB10	Aksesuar · Miscellaneous accessories · labeling plates
3RT2926-4RA11	Aksesuar · Coil connection modules · coil connection modules
3RT2916-4MA10	Aksesuar · Sealing covers · sealing covers
3RA2813-1AW10	Aksesuar
3RT2900-1SB60	Aksesuar · Miscellaneous accessories · labeling plates
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
3RA2815-1AW10	Aksesuar
3RA2814-1FW10	Aksesuar
3RT2926-1QT00	Aksesuar · LED modules · LED display indicator modules
3RT2926-4RC11	Aksesuar · Coil connection modules · coil connection modules
3RA2831-1DH10	Aksesuar
3RA2831-1DG10	Aksesuar
3RA2832-1DH10	Aksesuar
3RH2911-1AA10	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1XA40-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA30	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA21	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1FC30	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1MA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1MA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1LA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1AA01	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1BA10	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1BA01	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1YA21-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RA2832-1DG10	Aksesuar
3RA2815-1FW10	Aksesuar
3RA2814-1AW10	Aksesuar
3RH2911-1FB11	Aksesuar · Auxiliary switch · auxiliary switches
3RT2944-5AL21	Yedek parça · Solenoid coils · solenoid coils