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Siemens 3RT2535-1AL20

power contactor, AC-3, 35 A, 18.5 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: S2

SiemensMFR # 3RT2535-1AL20SKU # CEY-8EF3B03935CD

product brand nameSIRIUS

product designationcontactor

product type designation3RT25

size of contactorS2

function module for communicationNo

auxiliary switchYes

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About This Product

power contactor, AC-3, 35 A, 18.5 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: S2

Siemens 3RT2535-1AL20

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 contactorS2

function module for communicationNo

auxiliary switchYes

at AC in hot operating state per pole2.2 W

without load current share typical6.5 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 AC11.8 g / 5 ms, 7.4 g / 10 ms

at AC18.5 g / 5 ms, 11.6 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)10/01/2014

Net Weight1.103 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 circuit4

number of NO contacts for main contacts2

number of NC contacts for main contacts2

— at ambient temperature 40 °C rated value60 A

— at ambient temperature 60 °C rated value55 A

— per NO contact rated value35 A

— per NC contact rated value35 A

minimum cross-section in main circuit at maximum AC-1 rated value16 mm²

— at 24 V rated value55 A

— at 110 V rated value4.5 A

— at 220 V rated value1 A

— at 440 V rated value0.4 A

— at 24 V rated value55 A

— at 110 V rated value45 A

— at 220 V rated value5 A

— at 440 V rated value1 A

— at 24 V per NC contact rated value35 A

— at 24 V per NO contact rated value35 A

— at 110 V per NC contact rated value1.25 A

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

— at 220 V per NC contact rated value0.5 A

— at 220 V per NO contact rated value1 A

— at 440 V per NC contact rated value0.045 A

— at 440 V per NO contact rated value0.1 A

— at 24 V per NC contact rated value55 A

— at 24 V per NO contact rated value55 A

— at 110 V per NC contact rated value12.5 A

— at 110 V per NO contact rated value25 A

— at 220 V per NC contact rated value2.5 A

— at 220 V per NO contact rated value5 A

— at 440 V per NC contact rated value0.135 A

— at 440 V per NO contact rated value0.27 A

at 230 V per NC contact rated value11 kW

at 230 V per NO contact rated value11 kW

at 400 V per NC contact rated value18.5 kW

at 400 V per NO contact rated value18.5 kW

limited to 1 s switching at zero current maximum546 A; Use minimum cross-section acc. to AC-1 rated value

limited to 5 s switching at zero current maximum443 A; Use minimum cross-section acc. to AC-1 rated value

limited to 10 s switching at zero current maximum334 A; Use minimum cross-section acc. to AC-1 rated value

limited to 30 s switching at zero current maximum241 A; Use minimum cross-section acc. to AC-1 rated value

limited to 60 s switching at zero current maximum196 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 conductor2.2 W

power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor2.2 W

at AC5 000 1/h

at AC-1 maximum1 200 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 AC210 V·A

at 50 Hz210 V·A

at 60 Hz188 V·A

inductive power factor with closing power of the coil0.69

at 50 Hz0.69

at 60 Hz0.65

apparent holding power of magnet coil at AC17.2 V·A

at 50 Hz17.2 V·A

at 60 Hz16.5 V·A

inductive power factor with the holding power of the coil0.36

at 50 Hz0.36

at 60 Hz0.39

at AC10 ... 80 ms

at AC10 ... 18 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 value20 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: 125 A (690 V, 100 kA)

— with type of coordination 2 requiredgG: 63 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 50022

height114 mm

width75 mm

depth130 mm

— forwards0 mm

— backwards0 mm

— upwards0 mm

— downwards0 mm

— at the side0 mm

— forwards0 mm

— backwards0 mm

— upwards50 mm

— at the side10 mm

— downwards50 mm

— forwards0 mm

— backwards0 mm

— upwards50 mm

— downwards50 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 (1 ... 35 mm²), 1x (1 ... 50 mm²)

— solid or stranded2x (1 ... 35 mm²), 1x (1 ... 50 mm²)

— finely stranded with core end processing2x (1 ... 25 mm²), 1x (1 ... 35 mm²)

for AWG cables for main contacts2x (18 ... 2), 1x (18 ... 1)

— 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 as coded connectable conductor cross section for main contacts18 ... 1

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 50

Genuine accessories that can be used with the Siemens 3RT2535-1AL20 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
3RH2911-1HA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1FA40	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA31	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-1DA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1LA11	Aksesuar · Auxiliary switch · auxiliary switches
3RT2936-1CD00	Aksesuar · Surge suppressor · RC elements
3RH2911-1HA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1XA31-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA01	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1HA10	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1AA10	Aksesuar · Auxiliary switch · auxiliary switches
3RT2936-1BD00	Aksesuar · Surge suppressor · varistors
3RH2911-1NF11	Aksesuar · Auxiliary switch · auxiliary switches
3RT2916-4MA10	Aksesuar · Sealing covers · sealing covers
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
3RT2926-4RA11	Aksesuar · Coil connection modules · coil connection modules
3RH2914-1GP11	Aksesuar · Coupling links · coupling links
3RT2926-1QT00	Aksesuar · LED modules · LED display indicator modules
3RT2936-4MC00	Aksesuar · Miscellaneous accessories · Control Kits
3RA2815-1AW10	Aksesuar
3RA2814-1FW10	Aksesuar
3RT2926-4RC11	Aksesuar · Coil connection modules · coil connection modules
3RH2911-1XA40-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1AA01	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-1DA20	Aksesuar · Auxiliary switch · auxiliary switches
3RT2900-1SB10	Aksesuar · Miscellaneous accessories · labeling plates
3RH2911-1BA10	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1LA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1MA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1BA01	Aksesuar · Auxiliary switch · auxiliary switches
3RT2900-1SB60	Aksesuar · Miscellaneous accessories · labeling plates
3RH2911-1HA21	Aksesuar · Auxiliary switch · auxiliary switches
3RA2813-1FW10	Aksesuar
3RH2911-1MA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1FB11	Aksesuar · Auxiliary switch · auxiliary switches
3RT2936-1JL00	Aksesuar · Surge suppressor · varistors
3RA2815-1FW10	Aksesuar
3RT2926-4RB11	Aksesuar · Coil connection modules · coil connection modules
3RH2911-1HA30	Aksesuar · Auxiliary switch · auxiliary switches
3RA2813-1AW10	Aksesuar
3RH2911-1FC30	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1NF20	Aksesuar · Auxiliary switch · auxiliary switches
3RA2814-1AW10	Aksesuar
3RA2831-1DH10	Aksesuar
3RA2831-1DG10	Aksesuar
3RA2832-1DH10	Aksesuar
3RA2832-1DG10	Aksesuar
3RT2936-4EA4	Aksesuar · Terminal covers · terminal covers
3RH2911-1YA21-0MA0	Aksesuar · Auxiliary switch · auxiliary switches
3RT2934-5AL21	Yedek parça · Solenoid coils · solenoid coils