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Contactors

Ensure reliable control of your electrical systems with our high-performance Contactors. Designed for switching and managing high-power circuits, these essential devices are widely used in industrial, commercial, and residential applications, including motor control, lighting, and heating systems.

Our contactors are sourced from globally trusted brands, offering superior durability, reliability, and compliance with international safety standards. With various models and specifications available, you’ll find the perfect solution to meet your system requirements.

Explore our in-stock selection and benefit from fast, worldwide shipping to optimize your electrical control systems.

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3RH2921 - 2DA02 3RH Auxiliary switch 2NC 3RH/3RT, lateral, spring terminal
$6.90 - $6.90
$6.90
$6.90 - $6.90
$6.90

Siemens 3RH2921-2DA02 SIRIUS Auxiliary Switch 2NC Lateral 690V

Low stock

The Siemens 3RH2921-2DA02 is a SIRIUS lateral auxiliary switch with 2 NC instantaneous contacts, designed to snap-on beside 3RT2 contactors and 3RH...

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$6.90 - $6.90
$6.90
$6.90 - $6.90
$6.90
3RH2921 - 1DA20 3RH Auxiliary switch 2NO 3RH/3RT, lateral, screw terminal
$6.65 - $6.65
$6.65
$6.65 - $6.65
$6.65

Siemens 3RH2921-1DA20 Auxiliary Switch 2NO Lateral Screw Terminal

Low stock

The Siemens 3RH2921-1DA20 is a SIRIUS lateral auxiliary switch providing 2 instantaneous normally open contacts for use with 3RT2 contactors and 3R...

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$6.65 - $6.65
$6.65
$6.65 - $6.65
$6.65
3RH2911 - 2FA04 3RH Auxiliary switch 4NC 3RH/3RT, top mounted, spring terminal
$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40

Siemens 3RH2911-2FA04 SIRIUS Auxiliary Switch 4NC Front 690V

Low stock

The Siemens 3RH2911-2FA04 is a SIRIUS front-mounted auxiliary switch featuring 4 NC instantaneous contacts with spring-loaded terminals. It snaps d...

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$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40
3RH2911 - 2FA40 3RH Auxiliary switch 4NO 3RH/3RT, top mounted, spring terminal
$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40

Siemens 3RH2911-2FA40 SIRIUS Auxiliary Switch 4NO Spring Terminal

Low stock

The Siemens 3RH2911-2FA40 is a SIRIUS front-mount auxiliary switch with 4 normally open (NO) instantaneous contacts, designed to snap onto the fron...

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$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40
3RH2911 - 1DA11 3RH Auxiliary switch 1NO+1NC 3RH/3RT, lateral, screw terminal
$6.65 - $6.65
$6.65
$6.65 - $6.65
$6.65

Siemens 3RH2911-1DA11 SIRIUS Auxiliary Switch 1NO+1NC Lateral

In stock

The Siemens 3RH2911-1DA11 is a SIRIUS lateral auxiliary switch with 1 NO and 1 NC instantaneous contact, designed for snap-on mounting onto 3RT2.1 ...

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$6.65 - $6.65
$6.65
$6.65 - $6.65
$6.65
3RH2911 - 1FA04 3RH Auxiliary switch 4NC 3RH/3RT, top mounted, screw terminal
$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40

Siemens 3RH2911-1FA04 SIRIUS Auxiliary Switch 4NC 690V Screw Terminal

Low stock

The Siemens 3RH2911-1FA04 is a SIRIUS series auxiliary switch designed to snap onto the front of 3RT2.1 contactors and 3RH2 contactor relays. It pr...

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$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40
3RH1921 - 2CA01 3RH Auxiliary switch 1NC 3RH/3RT, top mounted, spring terminal
$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39

Siemens 3RH1921-2CA01 SIRIUS Auxiliary Switch 1NC Spring for 3RT1

In stock

The Siemens 3RH1921-2CA01 is a SIRIUS front-side auxiliary switch with 1 NC instantaneous contact and spring-loaded terminals, designed for snap-on...

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$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39
3RH1921 - 2CA10 3RH Auxiliary switch 1NO 3RH/3RT, top mounted, spring terminal
$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39

Siemens 3RH1921-2CA10 SIRIUS Auxiliary Switch 1NO Spring Terminal 3RT1

In stock

The Siemens 3RH1921-2CA10 is a SIRIUS front-mounted auxiliary switch with 1 normally open (NO) instantaneous contact and spring-type terminals, des...

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$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39
3RH1921 - 1CA01 3RH Auxiliary switch 1NC 3RH/3RT, top mounted, screw terminal
$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39

Siemens 3RH1921-1CA01 SIRIUS Auxiliary Switch 1NC 690V Screw Terminal

Low stock

The Siemens 3RH1921-1CA01 is a front-side auxiliary switch from the SIRIUS range, featuring 1 instantaneous NC contact with screw terminals. It sna...

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$2.39 - $2.39
$2.39
$2.39 - $2.39
$2.39
3RT1055 - 6AP36 3RT Contactor 3P 150A 75kW 230VAC 2NO+2NC
$319.83 - $319.83
$319.83
$319.83 - $319.83
$319.83

Siemens 3RT1055-6AP36 Power Contactor 150A 75kW 3P 220-240V AC/DC

Low stock

The Siemens 3RT1055-6AP36 is a SIRIUS 3RT1 size S6 3-pole power contactor designed for AC-3e/AC-3 motor and load switching duties. Rated at 150 A a...

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$319.83 - $319.83
$319.83
$319.83 - $319.83
$319.83
3RT2038 - 1KB40 3RT Contactor 3P 80A 37kW 24VDC 1NA+1NU S2
$185.15 - $185.15
$185.15
$185.15 - $185.15
$185.15

Siemens 3RT2038-1KB40 SIRIUS Power Contactor 80A 37kW 24V DC 3P

In stock

The Siemens 3RT2038-1KB40 is a SIRIUS 3RT2 series power contactor rated at 80 A / 37 kW at 400 V (AC-3/AC-3e), 3-pole, with a 24 V DC control coil....

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$185.15 - $185.15
$185.15
$185.15 - $185.15
$185.15
3RT2038 - 1AP04 3RT Contactor 3P 80A 37kW 230VAC 2NA+2NU S2
$136.82 - $136.82
$136.82
$136.82 - $136.82
$136.82

Siemens 3RT2038-1AP04 SIRIUS Power Contactor 80A 37kW 3P 230V AC

Low stock

The Siemens 3RT2038-1AP04 is a SIRIUS 3RT2 series power contactor rated at 80 A and 37 kW at 400 V for AC-3/AC-3e duty. The 3-pole device is contro...

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$136.82 - $136.82
$136.82
$136.82 - $136.82
$136.82
3RT2038 - 1AP00 3RT Contactor 3P 80A 37kW 230VAC 1NA+1NU S2
$129.76 - $129.76
$129.76
$129.76 - $129.76
$129.76

Siemens 3RT2038-1AP00 Power Contactor 3P 80A 37kW 230V AC Coil

Low stock

The Siemens 3RT2038-1AP00 is a SIRIUS 3RT2 series power contactor rated at 80 A and 37 kW at 400 V (AC-3). The 3-pole, size S2 unit operates on a 2...

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$129.76 - $129.76
$129.76
$129.76 - $129.76
$129.76
3RT2037 - 1AP04 3RT Contactor 3P 65A 30kW 230VAC 2NA+2NU S2
$123.81 - $123.81
$123.81
$123.81 - $123.81
$123.81

Siemens 3RT2037-1AP04 Power Contactor 3P 65A 30kW 230V AC Coil

Low stock

The Siemens 3RT2037-1AP04 is a SIRIUS 3RT2 series 3-pole power contactor rated at 65 A (AC-3, 400 V) and 30 kW, designed for switching three-phase ...

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$123.81 - $123.81
$123.81
$123.81 - $123.81
$123.81
3RT2037 - 1AP00 3RT Contactor 3P 65A 30kW 230VAC 1NA+1NU S2
$120.38 - $120.38
$120.38
$120.38 - $120.38
$120.38

Siemens 3RT2037-1AP00 SIRIUS Power Contactor 65A 3P 230V AC

Low stock

The 3RT2037-1AP00 is a Siemens SIRIUS 3RT2 series power contactor rated for AC-3/AC-3e operation at 65 A and 30 kW at 400 V. This 3-pole, size S2 d...

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$120.38 - $120.38
$120.38
$120.38 - $120.38
$120.38
3RT2036 - 1KB40 3RT Contactor 3P 50A 22kW 24VDC 1NA+1NU S2
$128.65 - $128.65
$128.65
$128.65 - $128.65
$128.65

Siemens 3RT2036-1KB40 Power Contactor 51A 22kW 3P 24V DC

Low stock

The Siemens 3RT2036-1KB40 is a 3-pole SIRIUS power contactor rated at 51 A and 22 kW / 400 V under AC-3e/AC-3 duty. It operates from a 24 V DC cont...

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$128.65 - $128.65
$128.65
$128.65 - $128.65
$128.65
3RT2036 - 1AP04 3RT Contactor 3P 50A 22kW 230VAC 2NA+2NU S2
$89.23 - $89.23
$89.23
$89.23 - $89.23
$89.23

Siemens 3RT2036-1AP04 Power Contactor 3P 51A 22kW 400V 230VAC Coil

Low stock

The Siemens 3RT2036-1AP04 is a 3-pole SIRIUS power contactor rated at 51 A / 22 kW at 400 V under AC-3/AC-3e duty, with a 230 V AC 50 Hz control co...

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$89.23 - $89.23
$89.23
$89.23 - $89.23
$89.23
3RT2035 - 1KB40 3RT Contactor 3P 40A 18,5kW 24VDC 1NA+1NU S2
$98.90 - $98.90
$98.90
$98.90 - $98.90
$98.90

Siemens 3RT2035-1KB40 Power Contactor 3P 41A 18.5kW 24V DC

Low stock

The Siemens 3RT2035-1KB40 is a SIRIUS frame S2 3-pole power contactor rated at 41 A and 18.5 kW at 400 V under AC-3e/AC-3 duty. The 24 V DC coil op...

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$98.90 - $98.90
$98.90
$98.90 - $98.90
$98.90
3RT2035 - 1AP04 3RT Contactor 3P 40A 18,5kW 230VAC 2NA+2NU S2
$71.02 - $71.02
$71.02
$71.02 - $71.02
$71.02

Siemens 3RT2035-1AP04 SIRIUS Power Contactor 41A 18.5kW 230V AC 3P

Low stock

The Siemens 3RT2035-1AP04 (MLFB: 3RT2035-1AP04) is a SIRIUS 3RT2 series 3-pole power contactor rated at 41 A / 18.5 kW at 400 V AC-3, designed for ...

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$71.02 - $71.02
$71.02
$71.02 - $71.02
$71.02
3RT2028 - 1BB40 3RT Contactor 3P 38A 18,5kW 24VDC 1NA+1NU S0
$90.72 - $90.72
$90.72
$90.72 - $90.72
$90.72

Siemens 3RT2028-1BB40 SIRIUS Power Contactor 38A 18.5kW 24V DC 3P

Low stock

The Siemens 3RT2028-1BB40 is a SIRIUS 3RT2 series power contactor rated at 38 A and 18.5 kW at 400 V, designed for AC-3e/AC-3 motor switching dutie...

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$90.72 - $90.72
$90.72
$90.72 - $90.72
$90.72
3RT2027 - 1BB40 3RT Contactor 3P 32A 15kW 24VDC 1NA+1NU S0
Sold out
$82.91 - $82.91
$82.91
$82.91 - $82.91
$82.91

Siemens 3RT2027-1BB40 Power Contactor 3P 32A 15kW 24V DC Coil

Out of stock

The Siemens 3RT2027-1BB40 is a SIRIUS 3RT2 3-pole power contactor rated 32 A / 15 kW at 400 V under AC-3 and AC-3e utilization categories with a 24...

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$82.91 - $82.91
$82.91
$82.91 - $82.91
$82.91
Sold out
3RT2027 - 1AP00 3RT Contactor 3P 32A 15kW 230VAC 1NA+1NU S0
$55.53 - $55.53
$55.53
$55.53 - $55.53
$55.53

Siemens 3RT2027-1AP00 Power Contactor 3P 32A AC-3 230V AC Coil

Low stock

The Siemens 3RT2027-1AP00 is a SIRIUS 3RT2 series 3-pole power contactor rated 32 A / 15 kW at 400 V in AC-3e/AC-3 duty. It operates from a 230 V A...

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$55.53 - $55.53
$55.53
$55.53 - $55.53
$55.53
3RT2026 - 1AP04 3RT Contactor 3P 25A 11kW 230VAC 2NA+2NU S0
$46.47 - $46.47
$46.47
$46.47 - $46.47
$46.47

Siemens 3RT2026-1AP04 Power Contactor 3P 25A 11kW 230V AC

Low stock

The Siemens 3RT2026-1AP04 is a SIRIUS 3RT2 series 3-pole power contactor rated 25 A / 11 kW at 400 V in AC-3 duty. It operates on a 230 V AC, 50 Hz...

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$46.47 - $46.47
$46.47
$46.47 - $46.47
$46.47
3RT2025 - 1BB44 3RT Contactor 3P 17A 7,5kW 24VDC 2NA+2NU S0
$58.38 - $58.38
$58.38
$58.38 - $58.38
$58.38

Siemens 3RT2025-1BB44 Power Contactor 17A 7.5kW/400V 3P 24V DC

Low stock

The Siemens 3RT2025-1BB44 is a SIRIUS 3RT2 3-pole power contactor rated at 17 A and 7.5 kW at 400 V (AC-3/AC-3e). It operates on a 24 V DC control ...

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$58.38 - $58.38
$58.38
$58.38 - $58.38
$58.38
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