Contactor & Control Relay Overloads

Contactor and control overload relays protect machinery from overheating, this includes the machine itself and the bearings, gears and coolants as the relay receives the corresponding signal and trips.


What is a Contactor and Control Overload Relay?


Often referred to as an overload relay, our generous range of contactor and control relay overloads offer users motor control within a multitude of environments.


It is important for users to have sufficient motor protection; electrical motors can be operated safely with the assistance of overload relays. They are predominantly designed for imitating the heating prototypes.


Within our range of contactor and control relay overloads, we feature thermal overload relays. A thermal overload relay is a protective device which cuts the power whenever the motor uses too much current for a long period of time.


These devices are directly related to circuit breakers, in design and in application. The difference being that a circuit breaker will disturb the circuit if an overload occurs for just a second, whereas a thermal overload will cut the power after a prolonged period of time.


Applications of a Contactor and Control Overload Relay


  • The majority of the time is to protect a motor

  • To detect both overload conditions and fault conditions to then announce trip command for a protective device

  • To deactivate a device whenever it pulls high current

  • Sometimes developed into microprocessor systems and solid-state electronics

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Description Price FLC Motor Rating Control Voltage Contact Current Rating Pole Configuration Range Contact Voltage Rating Mounting Style Interface Supply Voltage Series Normal State Configuration Number Of Auxiliary Contacts Power Rating Reset Method
RS Stock No. 122-1049
Mfr. Part No.RWB40E-3-A4U008
BrandWEG
£90.66
Each
Units
8 A - 1.6 → 8 A 3P 1.6 → 8 A 690 V DIN Rail Mount - - RW_E NO/NC 2 0.06 W Automatic, Manual
RS Stock No. 122-1050
Mfr. Part No.RWB40E-3-A4U002
BrandWEG
£90.66
Each
Units
2 A - 0.4 → 2 A 3P 0.4 → 2 A 690 V DIN Rail Mount - - RW_E NO/NC 2 0.07 W Automatic, Manual
RS Stock No. 122-0754
Mfr. Part No.RW17-1D3-U004
BrandWEG
£26.38
Each
Units
4 A - 2.8 → 4 A 3P 2.8 → 4 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-1314
Mfr. Part No.RW27-2D3-U023
BrandWEG
£34.68
Each
Units
23 A - 15 → 23 A 3P 15 → 23 A 690 V Direct Contactor - - RW27 NO/NC 2 0.9 → 1.7 W Automatic, Manual
RS Stock No. 122-0793
Mfr. Part No.CWCA0-22-00C03
BrandWEG
£25.23
Each
Units
- 24 V dc 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 2NO/2NC 4 - -
RS Stock No. 122-1306
Mfr. Part No.RW27-2D3-U004
BrandWEG
£34.68
Each
Units
4 A - 2.8 → 4 A 3P 2.8 → 4 A 690 V Direct Contactor - - RW27 NO/NC 2 0.9 → 1.7 W Automatic, Manual
RS Stock No. 122-0797
Mfr. Part No.CWCA0-04-00C03
BrandWEG
£25.23
Each
Units
- 24 V dc 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 4NC 4 - -
RS Stock No. 122-0755
Mfr. Part No.RW17-1D3-D063
BrandWEG
£26.38
Each
Units
6.3 A - 4 → 6.3 A 3P 4 → 6.3 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-1012
Mfr. Part No.CWCA0-40-00D02
BrandWEG
£21.39
Each
Units
- 24 V 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 4NO 4 - -
RS Stock No. 122-0757
Mfr. Part No.RW17-1D3-U010
BrandWEG
£26.38
Each
Units
10 A - 7 → 10 A 3P 7 → 10 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-0819
Mfr. Part No.CWCA0-22-00D24
BrandWEG
£21.39
Each
Units
- 230 V 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 2NO/2NC 4 - -
RS Stock No. 122-0751
Mfr. Part No.RW17-1D3-D012
BrandWEG
£26.38
Each
Units
1.2 A - 0.8 → 1.2 A 3P 0.8 → 1.2 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-0753
Mfr. Part No.RW17-1D3-D028
BrandWEG
£26.38
Each
Units
2.8 A - 1.8 → 2.8 A 3P 1.8 → 2.8 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-0801
Mfr. Part No.CWCA0-40-00D24
BrandWEG
£21.18
Each
Units
- 230 V 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 4NO 4 - -
RS Stock No. 122-1017
Mfr. Part No.CWCA0-31-00D24
BrandWEG
£21.39
Each
Units
- 230 V 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 3NO/NC 4 - -
RS Stock No. 122-1305
Mfr. Part No.RW27-2D3-D028
BrandWEG
£34.68
Each
Units
2.8 A - 1.8 → 2.8 A 3P 1.8 → 2.8 A 690 V Direct Contactor - - RW27 NO/NC 2 0.9 → 1.7 W Automatic, Manual
RS Stock No. 122-0765
Mfr. Part No.RW17-2D3-U023
BrandWEG
£27.92
Each
Units
23 A - 15 → 23 A 3P 15 → 23 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-0796
Mfr. Part No.CWCA0-40-00C03
BrandWEG
£24.97
Each
Units
- 24 V dc 10 A (AC1) 4P - 690 V DIN Rail Mount - - CWCA0 4NO 4 - -
RS Stock No. 122-0756
Mfr. Part No.RW17-1D3-U008
BrandWEG
£26.38
Each
Units
8 A - 5.6 → 8 A 3P 5.6 → 8 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual
RS Stock No. 122-0758
Mfr. Part No.RW17-1D3-D125
BrandWEG
£26.38
Each
Units
12.5 A - 8 → 12.5 A 3P 8 → 12.5 A 690 V DIN Rail Mount - - RW17 NO/NC 2 0.9 → 1.4 W Automatic, Manual