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 25–48 of 613 results

ABB AF Range AF12 3 Pole Contactor - 9 A, 230 V ac Coil, 3NO, 5.5 kW

RS Stock No.

7116111

Brand

ABB

Mfr. Prt No.

1SBL157001R1310 AF12-30-10-13

VND

1,592,080.16

Each

ABB AF Range AF12 3 Pole Contactor - 9 A, 230 V ac Coil, 3NO, 5.5 kW quantity
ABB AF Range AF16 3 Pole Contactor - 30 A, 230 V ac Coil, 3NO, 7.5 kW

RS Stock No.

7116115

Brand

ABB

Mfr. Prt No.

1SBL177001R1310 AF16-30-10-13

VND

1,338,659.52

Each

ABB AF Range AF16 3 Pole Contactor - 30 A, 230 V ac Coil, 3NO, 7.5 kW quantity
ABB AF Range AF16 3 Pole Contactor - 30 A, 24 V ac/dc Coil, 3NO, 7.5 kW

RS Stock No.

7648993

Brand

ABB

Mfr. Prt No.

1SBL177001R1110 AF16-30-10-11

VND

1,513,042.08

Each

ABB AF Range AF16 3 Pole Contactor - 30 A, 24 V ac/dc Coil, 3NO, 7.5 kW quantity
ABB AF Range AF16 4 Pole Contactor - 30 A, 230 V ac Coil, 4NO, 7.5 kW

RS Stock No.

7116200

Brand

ABB

Mfr. Prt No.

1SBL177201R1300 AF16-40-00-13

VND

2,087,219.20

Each

ABB AF Range AF16 4 Pole Contactor - 30 A, 230 V ac Coil, 4NO, 7.5 kW quantity
ABB AF Range AF16 4 Pole Contactor - 30 A, 230 V ac/dc Coil, 2NO + 2NC, 7.5 kW

RS Stock No.

7116247

Brand

ABB

Mfr. Prt No.

1SBL177501R1400 AF16-22-00-14

VND

2,299,010.56

Each

ABB AF Range AF16 4 Pole Contactor - 30 A, 230 V ac/dc Coil, 2NO + 2NC, 7.5 kW quantity
ABB AF Range AF190 3 Pole Contactor - 275 A, 230 V ac Coil, 3NO, 90 kW

RS Stock No.

8007258

Brand

ABB

Mfr. Prt No.

1SFL487002R1311 AF190-30-11-13

VND

18,108,353.12

Each

ABB AF Range AF190 3 Pole Contactor - 275 A, 230 V ac Coil, 3NO, 90 kW quantity
ABB AF Range AF26 3 Pole Contactor - 17 A, 24 V ac/dc Coil, 3NO, 11 kW

RS Stock No.

7116089

Brand

ABB

Mfr. Prt No.

1SBL236001R2100 AF26Z-30-00-21

VND

2,661,971.84

Each

ABB AF Range AF26 3 Pole Contactor - 17 A, 24 V ac/dc Coil, 3NO, 11 kW quantity
ABB AF Range AF26 4 Pole Contactor - 45 A, 230 V ac Coil, 2NO + 2NC, 11 kW

RS Stock No.

7648927

Brand

ABB

Mfr. Prt No.

1SBL237501R1300 AF26-22-00-13

VND

2,570,847.84

Each

ABB AF Range AF26 4 Pole Contactor - 45 A, 230 V ac Coil, 2NO + 2NC, 11 kW quantity
ABB AF Range AF26 4 Pole Contactor - 45 A, 24 V ac/dc Coil, 4NO, 11 kW

RS Stock No.

7648974

Brand

ABB

Mfr. Prt No.

1SBL237201R1100 AF26-40-00-11

VND

3,093,228.16

Each

ABB AF Range AF26 4 Pole Contactor - 45 A, 24 V ac/dc Coil, 4NO, 11 kW quantity
ABB AF Range AF26Z 3 Pole Contactor - 45 A, 24 V ac/dc Coil, 3NO, 11 kW

RS Stock No.

7649009

Brand

ABB

Mfr. Prt No.

1SBL237001R1100 AF26-30-00-11

VND

4,635,046.24

Each

ABB AF Range AF26Z 3 Pole Contactor - 45 A, 24 V ac/dc Coil, 3NO, 11 kW quantity
ABB AF Range AF30 3 Pole Contactor - 21 A, 24 V ac/dc Coil, 3NO, 15 kW

RS Stock No.

7116082

Brand

ABB

Mfr. Prt No.

1SBL276001R2100 AF30Z-30-00-21

VND

5,098,339.84

Each

ABB AF Range AF30 3 Pole Contactor - 21 A, 24 V ac/dc Coil, 3NO, 15 kW quantity
ABB AF Range AF38 3 Pole Contactor - 24 A, 230 V dc Coil, 3NO, 18.5 kW

RS Stock No.

7116121

Brand

ABB

Mfr. Prt No.

1SBL297001R1300 AF38-30-00-13

VND

5,073,976.16

Each

ABB AF Range AF38 3 Pole Contactor - 24 A, 230 V dc Coil, 3NO, 18.5 kW quantity
ABB AF Range AF38 3 Pole Contactor - 50 A, 24 V ac/dc Coil, 3NO, 18.5 kW

VND

0.00

Each

ABB AF Range AF38 3 Pole Contactor - 50 A, 24 V ac/dc Coil, 3NO, 18.5 kW quantity
ABB AF Range AF38 3 Pole Contactor - 50 A, 24 V ac/dc Coil, 3NO, 18.5 kW

RS Stock No.

7649012

Brand

ABB

Mfr. Prt No.

1SBL297001R1100 AF38-30-00-11

VND

4,189,401.92

Each

ABB AF Range AF38 3 Pole Contactor - 50 A, 24 V ac/dc Coil, 3NO, 18.5 kW quantity
ABB AF Range AF38 4 Pole Contactor - 55 A, 24 V ac/dc Coil, 4NO, 18.5 kW

VND

0.00

Each

ABB AF Range AF38 4 Pole Contactor - 55 A, 24 V ac/dc Coil, 4NO, 18.5 kW quantity
ABB AF Range AF38 4 Pole Contactor - 55 A, 24 V ac/dc Coil, 4NO, 18.5 kW

RS Stock No.

7648977

Brand

ABB

Mfr. Prt No.

1SBL297201R1100 AF38-40-00-11

VND

3,569,950.56

Each

ABB AF Range AF38 4 Pole Contactor - 55 A, 24 V ac/dc Coil, 4NO, 18.5 kW quantity
ABB AF Range AF40 3 Pole Contactor - 70 A, 230 V ac Coil, 3NO, 18.5 kW

RS Stock No.

8007188

Brand

ABB

Mfr. Prt No.

1SBL347001R1300 AF40-30-00-13

VND

5,082,225.28

Each

ABB AF Range AF40 3 Pole Contactor - 70 A, 230 V ac Coil, 3NO, 18.5 kW quantity
ABB AF Range AF40 3 Pole Contactor - 70 A, 24 V ac Coil, 3NO, 18.5 kW

RS Stock No.

8007175

Brand

ABB

Mfr. Prt No.

1SBL347001R4100 AF40-30-00-41

VND

3,795,554.40

Each

ABB AF Range AF40 3 Pole Contactor - 70 A, 24 V ac Coil, 3NO, 18.5 kW quantity
ABB AF Range AF40 4 Pole Contactor - 70 A, 230 V ac Coil, 4NO, 18.5 kW

RS Stock No.

8376939

Brand

ABB

Mfr. Prt No.

1SBL347201R1300 AF40-40-00-13

VND

7,656,142.56

Each

ABB AF Range AF40 4 Pole Contactor - 70 A, 230 V ac Coil, 4NO, 18.5 kW quantity
ABB AF Range AF52 3 Pole Contactor - 100 A, 230 V ac Coil, 3NO, 22 kW

RS Stock No.

8007194

Brand

ABB

Mfr. Prt No.

1SBL367001R1300 AF52-30-00-13

VND

4,640,801.44

Each

ABB AF Range AF52 3 Pole Contactor - 100 A, 230 V ac Coil, 3NO, 22 kW quantity
ABB AF Range AF65 3 Pole Contactor - 105 A, 230 V ac Coil, 3NO, 30 kW

RS Stock No.

8007201

Brand

ABB

Mfr. Prt No.

1SBL387001R1300 AF65-30-00-13

VND

6,151,925.12

Each

ABB AF Range AF65 3 Pole Contactor - 105 A, 230 V ac Coil, 3NO, 30 kW quantity
ABB AF Range AF65 3 Pole Contactor - 105 A, 230 V ac/dc Coil, 3NO, 30 kW

RS Stock No.

8007204

Brand

ABB

Mfr. Prt No.

1SBL387001R1400 AF65-30-00-14

VND

6,151,925.12

Each

ABB AF Range AF65 3 Pole Contactor - 105 A, 230 V ac/dc Coil, 3NO, 30 kW quantity
ABB AF Range NF 4 Pole Contactor - 6 A, 230 V ac/dc Coil, 2NO + 2NC

RS Stock No.

7649034

Brand

ABB

Mfr. Prt No.

1SBH137001R1422 NF22E-14

VND

928,121.92

Each

ABB AF Range NF 4 Pole Contactor - 6 A, 230 V ac/dc Coil, 2NO + 2NC quantity
ABB AF Range NF 4 Pole Contactor - 6 A, 24 V ac/dc Coil, 2NO + 2NC

VND

0.00

Each

ABB AF Range NF 4 Pole Contactor - 6 A, 24 V ac/dc Coil, 2NO + 2NC quantity