Contactors

All electric motors have a lifespan, and to keep them running efficiently and safely they must be protected. One of the main causes of failure is electrical overload, sometimes called overcurrent. When a motor draws more current than it is designed to handle it causes the temperature to build-up resulting in overheating. This damages motor windings and coils. It is important to protect the motor and its circuit, and this is where the use of contactor overload relays can help.RS Components offer an extensive range of high-quality contactor overload relays from leading industry brands including Schneider Electric, Siemens, ABB, Eaton, Lovato, and Rockwell Automation.What is overload protection?Overload is where a motor draws a high current above its rated value for an extended amount of time. Overload causes overheating of the motor causing damage. To prevent this from happening devices such as contactor relays are specifically designed for industrial control motor protection. They are used with contactors as part of a motor starter or in a control panel or centre.What are the different types of contactor overload relays?The motor protection devices can be classified into two main types which are thermal types and electronic types.Thermal overload relaysUtilise a bi-metallic plate located near a heating element. When excessive current is passed through the heating element N/C (Normally Closed) contacts switch over and opens contacts. This interrupts power from flowing to the contactor’s control circuit. Thermal overloads usually offer an adjustable current range as well as a manual or automatic reset option.Electronic RelaysElectronic overload relays don’t have a bi-metallic mechanism, Instead, they work by using components such as temperature sensors to measure the load current. They are generally more accurate than thermal devices and they usually have a wider current range, a selectable trip class provides enhanced trip protection against single phasing against the motor.

Showing 241–264 of 584 results

S00 CONTACTOR 5.5KW 24VAC NC AUX SCREW

RS Stock No.

7061162

Brand

Siemens

Mfr. Prt No.

3RT2017-1AB02

IDR

1,427,343.12

Each

S00 CONTACTOR 5.5KW 24VAC NC AUX SCREW quantity
Schneider Electric TeSys D LC1D 3 Pole Contactor - 12 A, 230 V ac Coil, 3NO, 5.5 kW

RS Stock No.

6089425

Brand

Schneider Electric

Mfr. Prt No.

LC1D123P7

IDR

987,958.91

Each

Schneider Electric TeSys D LC1D 3 Pole Contactor - 12 A, 230 V ac Coil, 3NO, 5.5 kW quantity
3NO CONTROL RELAY,230VAC COIL

RS Stock No.

0326683

Brand

Eaton

Mfr. Prt No.

051768 DILER-31(230V50HZ,240V60HZ)

IDR

686,924.61

Each

3NO CONTROL RELAY,230VAC COIL quantity
3 POLE CONTACTOR,7.5KW,16A,240VAC,1NO

RS Stock No.

7447730

Brand

Schneider Electric

Mfr. Prt No.

LC1K1610U7

IDR

622,522.15

Each

3 POLE CONTACTOR,7.5KW,16A,240VAC,1NO quantity
CONTACTOR S00 7A 120VAC 1NO SCREW

RS Stock No.

8613067

Brand

Siemens

Mfr. Prt No.

3RT2015-1AK61

IDR

1,116,868.72

Each

CONTACTOR S00 7A 120VAC 1NO SCREW quantity
MODULAR CONTACTOR 2NO/2NC 25A 24VAC/DC

RS Stock No.

7761566

Brand

Finder

Mfr. Prt No.

22.34.0.024.4620

IDR

757,620.47

Each

MODULAR CONTACTOR 2NO/2NC 25A 24VAC/DC quantity
DC COIL CONTROL MINI RELAY,24V 4NO

RS Stock No.

4679622

Brand

Eaton

Mfr. Prt No.

010223 DILER-40-G(24VDC)

IDR

695,420.70

Each

DC COIL CONTROL MINI RELAY,24V 4NO quantity
Schneider Electric TeSys Contactor - 10 A, 220 V ac Coil, 3NO + 2NC

RS Stock No.

1884718

Brand

Schneider Electric

Mfr. Prt No.

CAD326M7

IDR

1,053,829.83

Each

Schneider Electric TeSys Contactor - 10 A, 220 V ac Coil, 3NO + 2NC quantity
3 POLE CONTACTOR 4KW 100-250V AC/DC NO

RS Stock No.

7116118

Brand

ABB

Mfr. Prt No.

1SBL137001R1310 AF09-30-10-13

IDR

719,125.84

Each

3 POLE CONTACTOR 4KW 100-250V AC/DC NO quantity
3TG1001-0BB4

RS Stock No.

3927835

Brand

Siemens

Mfr. Prt No.

3TG1001-0BB4

IDR

717,972.05

Each

3TG1001-0BB4 quantity
DILM CONTACTOR,4KW 24VAC 1 MAKE CONTACT

RS Stock No.

4930028

Brand

Eaton

Mfr. Prt No.

276677 DILM9-10(24V50HZ)

IDR

687,344.17

Each

DILM CONTACTOR,4KW 24VAC 1 MAKE CONTACT quantity
3 POLE CONTACTOR 5.5KW 100-250VAC/DC NC

RS Stock No.

7116177

Brand

ABB

Mfr. Prt No.

1SBL157001R1301 AF12-30-01-13

IDR

807,967.67

Each

3 POLE CONTACTOR 5.5KW 100-250VAC/DC NC quantity
3 POLE CONTACTOR 5.5KW 100-250VAC/DC NO

RS Stock No.

7116111

Brand

ABB

Mfr. Prt No.

1SBL157001R1310 AF12-30-10-13

IDR

870,482.11

Each

3 POLE CONTACTOR 5.5KW 100-250VAC/DC NO quantity
S0 CONTACTOR 5.5KW 230VAC NC AUX SCREW

RS Stock No.

7061305

Brand

Siemens

Mfr. Prt No.

3RT2024-1AP00

IDR

1,397,029.91

Each

S0 CONTACTOR 5.5KW 230VAC NC AUX SCREW quantity
CONTACTOR, DEFINITE PURPOSE, MODEL 96

IDR

0.00

Each

CONTACTOR, DEFINITE PURPOSE, MODEL 96 quantity
DILM CONTACTOR,4KW 230VAC 1BREAK CONTACT

RS Stock No.

4930062

Brand

Eaton

Mfr. Prt No.

276725 DILM9-01(230V50HZ,240V60HZ)

IDR

661,541.23

Each

DILM CONTACTOR,4KW 230VAC 1BREAK CONTACT quantity
CONTACTOR RELAY, 2NO+2NC, DC 24V, S00

RS Stock No.

1229412

Brand

Siemens

Mfr. Prt No.

3RH2122-2BB40

IDR

1,085,191.94

Each

CONTACTOR RELAY, 2NO+2NC, DC 24V, S00 quantity
ELECTROMAGNETIC RELAY, CA2KN40P7

RS Stock No.

6087176

Brand

Schneider Electric

Mfr. Prt No.

CA2KN40P7

IDR

745,348.34

Each

ELECTROMAGNETIC RELAY, CA2KN40P7 quantity
Schneider Electric TeSys K LC1K 4 Pole Contactor - 9 A, 24 V ac Coil, 2NO + 2NC

RS Stock No.

6090150

Brand

Schneider Electric

Mfr. Prt No.

LC1K09008B7

IDR

659,862.99

Each

Schneider Electric TeSys K LC1K 4 Pole Contactor - 9 A, 24 V ac Coil, 2NO + 2NC quantity
Eaton Overload Relay - 1NO + 1NC, 6 → 10 A F.L.C, 10 A Contact Rating, 6 W, 500 Vac

RS Stock No.

4931239

Brand

Eaton

Mfr. Prt No.

278440 ZB12-10

IDR

700,560.31

Each

Eaton Overload Relay - 1NO + 1NC, 6 → 10 A F.L.C, 10 A Contact Rating, 6 W, 500 Vac quantity
CONTACTOR 24VDC 4KW 1NO 3 POLE

RS Stock No.

4679379

Brand

Eaton

Mfr. Prt No.

010213 DILEM-10-G(24VDC)

IDR

688,288.18

Each

CONTACTOR 24VDC 4KW 1NO 3 POLE quantity
MINIATURE CONTACTOR,4KW 16A 240VAC COIL

RS Stock No.

4450881

Brand

ABB

Mfr. Prt No.

GJL1311001R8100 B7-30-10-80

IDR

888,628.08

Each

MINIATURE CONTACTOR,4KW 16A 240VAC COIL quantity
OVERLOAD RELAY,12-18A FLC RANGE

RS Stock No.

3949330

Brand

Schneider Electric

Mfr. Prt No.

LRD21

IDR

776,500.67

Each

OVERLOAD RELAY,12-18A FLC RANGE quantity
DILA CONTACTOR RELAY,24VAC 4MAKE CONTACT

RS Stock No.

4930595

Brand

Eaton

Mfr. Prt No.

276316 DILA-40(24V50HZ)

IDR

832,721.71

Each

DILA CONTACTOR RELAY,24VAC 4MAKE CONTACT quantity