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. 261-5682
Mfr. Part No.LT3SA00M
£142.00
Each
Units
- 115 V ac, 230 V ac - - TeSys 250 V ac - - - LT3S NO/NC 2 100 VA Automatic
RS Stock No. 789-2982
Mfr. Part No.RF38 0650
BrandLovato
£29.00
Each
Units
- 690 V 38 A 3P - 8 kV Direct Contactor - - RF38 - - 4 → 6.5 A Manual
RS Stock No. 372-9029
Mfr. Part No.LR2K0321
£33.00
Each
Units
10 → 14 A 250 V dc, 690 V ac 14 A 3P TeSys 690 V ac Direct Contactor - - LR2K NO/NC 2 100 W Automatic, Manual
RS Stock No. 419-8713
Mfr. Part No.LR9F5371
£279.00
Each
Units
132 → 220 A - 630 A 3P TeSys 1 kV ac Direct Contactor - 24 V dc LR9F - - 100 W Manual
RS Stock No. 133-179
Mfr. Part No.8TT92RS
BrandEaton
£62.49
Each
Units
7 → 10 A - 10 A - - 415 V ac Direct Contactor - - ADS8 NO/NC 1 4 kW Automatic
RS Stock No. 513-0308
Mfr. Part No.ZB65-40
BrandEaton
£68.35
Each
Units
24 → 40 A 500 V ac 40 A - - 690 V ac Direct Contactor - - ZB65 NO/NC 2 7.5 W Automatic, Manual
RS Stock No. 685-1560
Mfr. Part No.RF38 0400
BrandLovato
£29.00
Each
Units
2.5 → 4 A - 4 A 3P - - - - - RF38 - - - Automatic, Manual
RS Stock No. 527-3708
Mfr. Part No.193-EECB
£55.00
Each
Units
1 → 5 A 690 V ac 5 A 3P Bulletin 690 V ac Clip On Ethernet - 193-E1 Plus NO/NC 2 150 mW Automatic, Manual
RS Stock No. 493-0387
Mfr. Part No.ZB12-4
BrandEaton
£35.00
Each
Units
2.4 → 4 A 500 V ac 4 A - - 690 V ac Direct Contactor - - ZB NO/NC 2 6 W Automatic, Manual
RS Stock No. 326-807
Mfr. Part No.ZE-4
BrandEaton
£37.32
Each
Units
2.4 → 4 A 600 V ac 4 A - - 690 V ac Direct Contactor - - ZE NO/NC 2 6 W Automatic, Manual
RS Stock No. 419-8690
Mfr. Part No.LR9F5369
£213.00
Each
Units
90 → 150 A - 630 A 3P TeSys 1 kV ac Direct Contactor - 24 V dc LR9F - - 100 W Manual
RS Stock No. 394-9267
Mfr. Part No.LRD3359
£94.00
Each
Units
48 → 65 A - 65 A 3P TeSys 690 V ac Direct Contactor - - LRD3 NO/NC 2 - Automatic, Manual
RS Stock No. 758-995
Mfr. Part No.LR2K0316
£33.00
Each
Units
8 → 11.5 A 250 V dc, 690 V ac 11.5 A 3P TeSys 690 V ac Direct Contactor - - LR2K NO/NC 2 100 W Automatic, Manual
RS Stock No. 638-7432
Mfr. Part No.3RB2056-1FC2
BrandSiemens
£159.05
Each
Units
50 → 200 A - 315 A 3P Sirius Classic 1 kV ac Direct Contactor - - 3RB2 NO/NC 2 90 kW Automatic, Manual
RS Stock No. 727-6210
Mfr. Part No.LRD340
£83.00
Each
Units
30 → 40 A - 40 A - TeSys D 1 kV ac Under Contactor Mount - - LRD3 NO/NC 2 - -
RS Stock No. 394-9245
Mfr. Part No.LRD3363
£112.00
Each
Units
63 → 80 A - 80 A 3P TeSys 690 V ac Direct Contactor - - LRD3 NO/NC 2 - Automatic, Manual
RS Stock No. 395-0431
Mfr. Part No.CAD32B7
£33.00
Each
Units
- - 10 A - TeSys 690 V ac - - 24 V ac CAD3 3NO/2NC - - -
RS Stock No. 735-2787
Mfr. Part No.3TH2031-0BB4
BrandSiemens
£51.33
Each
Units
- - 4 A - SIRIUS Innovation 660 V ac - - - 3TH2 3NO/1NC 4 - -
RS Stock No. 608-7299
Mfr. Part No.CAD32M7
£35.00
Each
Units
- - 10 A - TeSys 690 V ac - - - CAD3 3NO/2NC - - -
RS Stock No. 758-866
Mfr. Part No.CA2KN22U7
£26.11
Each
Units
- - 10 A - TeSys K 690 V ac DIN Rail Mount, Screw Mount - - CA2KN 2NO/2NC - - -
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