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Relays and Contactors

Optimize your electrical control systems with our premium Relays and Contactors. Designed for precise switching and control, these devices are essential for managing power in residential, commercial, and industrial applications.

Our selection features high-quality relays and contactors from globally trusted brands, ensuring reliability, durability, and compliance with international standards. Whether for automation systems, motor control, or circuit switching, these components deliver exceptional performance and longevity.

Browse our in-stock range and enjoy fast, worldwide shipping to keep your electrical systems running smoothly and efficiently.

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3RT2028 - 1AP00 3RT Contactor 3P 38A 18,5kW 230VAC 1NA+1NU S0
$85.76 - $85.76
$85.76
$85.76 - $85.76
$85.76

Siemens 3RT2028-1AP00 Power Contactor 38A 18.5kW 3P 230V AC

Low stock

The Siemens 3RT2028-1AP00 is a SIRIUS 3RT2 size S0 3-pole power contactor rated 38 A at AC-3 / 400 V, corresponding to 18.5 kW. The coil operates o...

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$85.76 - $85.76
$85.76
$85.76 - $85.76
$85.76
Siemens 3RT1055-2AB36 SIRIUS Contactor 55 A 24 V AC Coil Sold out
$375.42 - $375.42
$375.42
$375.42 - $375.42
$375.42

Siemens 3RT1055-2AB36 SIRIUS Contactor 55 A 24 V AC Coil

Out of stock

The Siemens 3RT1055-2AB36 is a high-quality SIRIUS 3RT10 series contactor designed for reliable switching of motors and power circuits in industria...

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$375.42 - $375.42
$375.42
$375.42 - $375.42
$375.42
Sold out
3RT1056 - 6AV36 Siemens Power Contactor 3P 185A 90 kW 2NO+2NC
$508.63 - $508.63
$508.63
$508.63 - $508.63
$508.63

Siemens 3RT1056-6AV36 SIRIUS Power Contactor 3P 185A 90kW AC 380-420V

Low stock

The Siemens 3RT1056-6AV36 (MLFB: 3RT1056-6AV36) is a SIRIUS 3RT1 series power contactor rated for AC-3e/AC-3 duty at 185 A and 90 kW / 400 V. It fe...

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$508.63 - $508.63
$508.63
$508.63 - $508.63
$508.63
3RT2018 - 1AP02 3RT Mini contactor 3P 16A 7,5kW 230VAC 1NU S00
$36.11 - $36.11
$36.11
$36.11 - $36.11
$36.11

Siemens 3RT2018-1AP02 Power Contactor 16A 7.5kW 230V AC Coil

In stock

The Siemens 3RT2018-1AP02 is a SIRIUS 3RT2 series 3-pole power contactor rated at 16 A and 7.5 kW at 400 V under AC-3e/AC-3 duty. It is controlled ...

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$36.11 - $36.11
$36.11
$36.11 - $36.11
$36.11
3RT1054 - 1AV36 Siemens Power Contactor 3P 115A 55kW 2NO+2NC
$329.85 - $329.85
$329.85
$329.85 - $329.85
$329.85

Siemens 3RT1054-1AV36 SIRIUS Power Contactor 3P 115A 55kW 380-420V AC

Low stock

The Siemens 3RT1054-1AV36 (MLFB: 3RT1054-1AV36) is a SIRIUS series 3-pole power contactor rated at 115 A and 55 kW at 400 V under AC-3/AC-3e duty. ...

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$329.85 - $329.85
$329.85
$329.85 - $329.85
$329.85
3RH2921 - 2DA02 3RH Auxiliary switch 2NC 3RH/3RT, lateral, spring terminal
$9.59 - $9.59
$9.59
$9.59 - $9.59
$9.59

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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$9.59 - $9.59
$9.59
$9.59 - $9.59
$9.59
3RH2911 - 1FA04 3RH Auxiliary switch 4NC 3RH/3RT, top mounted, screw terminal
$10.28 - $10.28
$10.28
$10.28 - $10.28
$10.28

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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$10.28 - $10.28
$10.28
$10.28 - $10.28
$10.28
3RT2036 - 1AP04 3RT Contactor 3P 50A 22kW 230VAC 2NA+2NU S2
$123.98 - $123.98
$123.98
$123.98 - $123.98
$123.98

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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$123.98 - $123.98
$123.98
$123.98 - $123.98
$123.98
3RT2023-2FB44-3MA0 Siemens Power Contactor 3P 9A 4kW 400V 24VDC 2NO+2NC, Spring-Loaded Terminal, Size: S0
$75.58 - $75.58
$75.58
$75.58 - $75.58
$75.58

Siemens 3RT2023-2FB44-3MA0 Power Contactor 3P 9A 4kW 24VDC

Low stock

The Siemens 3RT2023-2FB44-3MA0 is a SIRIUS 3RT2 3-pole power contactor rated at 9 A and 4 kW at 400 V (AC-3/AC-3e), operated by a 24 V DC coil with...

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$75.58 - $75.58
$75.58
$75.58 - $75.58
$75.58
3RT2027 - 1AP00 3RT Contactor 3P 32A 15kW 230VAC 1NA+1NU S0
$77.16 - $77.16
$77.16
$77.16 - $77.16
$77.16

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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$77.16 - $77.16
$77.16
$77.16 - $77.16
$77.16
3RT2017 - 1AP01 3RT Mini contactor 3P 12A 5,5kW 230VAC 1NA S00
$28.47 - $28.47
$28.47
$28.47 - $28.47
$28.47

Siemens 3RT2017-1AP01 Power Contactor 3P 12A AC-3 230V Coil S00

In stock

The Siemens 3RT2017-1AP01 (MLFB: 3RT2017-1AP01) is a SIRIUS 3RT2 series 3-pole power contactor rated at 12 A / 5.5 kW at 400 V under AC-3/AC-3e dut...

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$28.47 - $28.47
$28.47
$28.47 - $28.47
$28.47
3RT2023 - 1AP04 3RT Contactor 3P 9A 4kW 230VAC 2NA+2NU S0
$35.53 - $35.53
$35.53
$35.53 - $35.53
$35.53

Siemens 3RT2023-1AP04 SIRIUS Power Contactor 3P 9A AC-3 230V

Low stock

The Siemens 3RT2023-1AP04 (MLFB: 3RT2023-1AP04) is a SIRIUS 3RT2 series 3-pole power contactor rated at 9 A AC-3 / 4 kW at 400 V, with a 230 V AC 5...

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$35.53 - $35.53
$35.53
$35.53 - $35.53
$35.53
3RT2036-3KB40 Siemens Power Contactor 3P 51A 22kW 400V 24VDC 1NO+1NC, Spring-Loaded Terminal, Frame Size: S2
$178.29 - $178.29
$178.29
$178.29 - $178.29
$178.29

Siemens 3RT2036-3KB40 SIRIUS Power Contactor 3P 51A 22kW 24VDC 1NO+1NC

Low stock

The Siemens 3RT2036-3KB40 is a SIRIUS 3RT2 series 3-pole power contactor rated at 51 A and 22 kW at 400 V (AC-3/AC-3e), fitted with a 24 V DC coil ...

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$178.29 - $178.29
$178.29
$178.29 - $178.29
$178.29
3RH2921 - 1DA02 3RH Auxiliary switch 2NC 3RH/3RT, lateral, screw terminal
$9.69 - $9.69
$9.69
$9.69 - $9.69
$9.69

Siemens 3RH2921-1DA02 Auxiliary Switch 2NC Lateral Screw Terminal

In stock

The Siemens 3RH2921-1DA02 is a SIRIUS lateral auxiliary switch with 2 instantaneous normally closed (NC) contacts, designed to mount on either side...

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$9.69 - $9.69
$9.69
$9.69 - $9.69
$9.69
3RT2023 - 1BB44 3RT Contactor 3P 9A 4kW 24VDC 2NA+2NU S0
$66.12 - $66.12
$66.12
$66.12 - $66.12
$66.12

Siemens 3RT2023-1BB44 SIRIUS Power Contactor 3P 9A 4kW 24V DC

Low stock

The Siemens 3RT2023-1BB44 is a 3-pole SIRIUS power contactor rated 9 A (AC-3) and 4 kW at 400 V, controlled by a 24 V DC coil. It includes a remova...

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$66.12 - $66.12
$66.12
$66.12 - $66.12
$66.12
3RT2037 - 1AP00 3RT Contactor 3P 65A 30kW 230VAC 1NA+1NU S2
$167.27 - $167.27
$167.27
$167.27 - $167.27
$167.27

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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$167.27 - $167.27
$167.27
$167.27 - $167.27
$167.27
3RH2921 - 1DA20 3RH Auxiliary switch 2NO 3RH/3RT, lateral, screw terminal
$9.24 - $9.24
$9.24
$9.24 - $9.24
$9.24

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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$9.24 - $9.24
$9.24
$9.24 - $9.24
$9.24
3RT2035 - 1AP04 3RT Contactor 3P 40A 18,5kW 230VAC 2NA+2NU S2
$98.67 - $98.67
$98.67
$98.67 - $98.67
$98.67

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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$98.67 - $98.67
$98.67
$98.67 - $98.67
$98.67
3RT2018 - 1AP01 3RT Mini contactor 3P 16A 7,5kW 230VAC 1NA S00
$36.11 - $36.11
$36.11
$36.11 - $36.11
$36.11

Siemens 3RT2018-1AP01 Power Contactor 3P 16A AC-3 230V AC

In stock

The Siemens 3RT2018-1AP01 is a SIRIUS 3RT2 power contactor rated at 16 A (AC-3/AC-3e) and 7.5 kW at 400 V, for switching three-phase AC loads. This...

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$36.11 - $36.11
$36.11
$36.11 - $36.11
$36.11
3RH2911 - 2FA40 3RH Auxiliary switch 4NO 3RH/3RT, top mounted, spring terminal
$10.28 - $10.28
$10.28
$10.28 - $10.28
$10.28

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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$10.28 - $10.28
$10.28
$10.28 - $10.28
$10.28
3RT2025 - 1AP00 3RT Contactor 3P 17A 7,5kW 230VAC 1NA+1NU S0
$41.64 - $41.64
$41.64
$41.64 - $41.64
$41.64

Siemens 3RT2025-1AP00 SIRIUS Power Contactor 17A 3P 230V AC

In stock

The Siemens 3RT2025-1AP00 is a 3-pole SIRIUS power contactor from the 3RT2 series, rated 17 A and 7.5 kW at 400 V in AC-3/AC-3e duty. It is equippe...

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$41.64 - $41.64
$41.64
$41.64 - $41.64
$41.64
3RT2038 - 1AP04 3RT Contactor 3P 80A 37kW 230VAC 2NA+2NU S2
$190.10 - $190.10
$190.10
$190.10 - $190.10
$190.10

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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$190.10 - $190.10
$190.10
$190.10 - $190.10
$190.10
3RH2921 - 2DA11 3RH Auxiliary switch 1NO+1NC 3RH/3RT, lateral, spring terminal
$9.59 - $9.59
$9.59
$9.59 - $9.59
$9.59

Siemens 3RH2921-2DA11 SIRIUS Auxiliary Switch 1NO+1NC Spring Terminal

Low stock

The Siemens 3RH2921-2DA11 is a SIRIUS laterally mountable auxiliary switch with 1 NO + 1 NC contacts, designed for snap-on fitting to the left or r...

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$9.59 - $9.59
$9.59
$9.59 - $9.59
$9.59
3RT2024 - 2KB40 Siemens Power Contactor 3P 12A 5,5kW 400V 24VDC 1NO+1NC, Spring - Loaded Terminal, Size: S0
$65.20 - $65.20
$65.20
$65.20 - $65.20
$65.20

Siemens 3RT2024-2KB40 Power Contactor 3P 12A 5.5kW 24VDC

Low stock

The Siemens 3RT2024-2KB40 is a 3-pole SIRIUS power contactor rated 12 A / 5.5 kW at 400 V (AC-3), designed for switching three-phase induction moto...

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$65.20 - $65.20
$65.20
$65.20 - $65.20
$65.20

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