Contactor Overload Relays

RS Components wide range of contactor 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.

Our contactor overload relays come from trusted and well known brands helping us provide quality products for all of our customers needs.

What is a Contactor Overload Relay?

Often referred to as an overload relay, these high quality contactor overload relays offer motor control within a multitude of environments. Designed to help your motor carry on working in a safe environment they give you the peace of mind that you have sufficient motor protection when using electrical motors. Predominantly designed for imitating the heating prototypes they are a staple for keeping your motors healthy.

Also featured within our range of contactor overload relays are the 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 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 Supply Voltage Series Normal State Configuration Number Of Auxiliary Contacts Power Rating Reset Method Terminal Type
RS Stock No. 608-7233
Mfr. Part No.CAD323BD
HK$811.45
Each
units
- - 10 A - TeSys 690 V dc - - CAD 3NO/2NC - - - Cage Clamp
RS Stock No. 279-6292
Mfr. Part No.CA3KN31BD
HK$269.34
Each
units
- 24 V dc 10 A - TeSys K 690 V ac DIN Rail Mount, Panel Mount - CA3KN 3NO/NC - - - Screw
RS Stock No. 493-0400
Mfr. Part No.278441 & ZB12-12
BrandEaton
HK$430.26
Each
units
9 → 12 A 500 V ac 12 A - - 690 V ac Direct Contactor - ZB NO/NC 2 6 W Automatic, Manual Screw
RS Stock No. 764-9043
Mfr. Part No.1SAZ321201R1002
BrandABB
HK$1,340.84
Each
units
22 → 32 A - 32 A 3P A Line 690 V ac Under Contactor Mount - TA75 NO/NC 2 2.91 W - Screw
RS Stock No. 394-9273
Mfr. Part No.LRD3357
HK$1,030.47
Each
units
37 → 50 A - 50 A 3P TeSys 690 V ac Direct Contactor - LRD NO/NC 2 - Automatic, Manual Screw
RS Stock No. 711-6657
Mfr. Part No.1SAZ721201R1049 TF42-20
BrandABB
HK$626.91
Each
units
16 → 20 A - 20 A 3P AF Range 690 V ac/dc Direct Contactor - TF42 NO/NC 2 2.6 W Automatic, Manual Screw
RS Stock No. 261-5682
Mfr. Part No.LT3SA00M
HK$1,668.05
Each
units
- 115 V ac, 230 V ac - - TeSys 250 V ac - - LT3S NO/NC 2 100 VA Automatic Cage Clamp
RS Stock No. 445-7826
Mfr. Part No.1SAZ211201R1043
BrandABB
HK$508.69
Each
units
7.5 → 11 A - 11 A 3P A Line 690 V ac Clip On - TA25 NO/NC 2 2.2 W Automatic, Manual Screw
RS Stock No. 326-807
Mfr. Part No.014518 & ZE-4
BrandEaton
HK$458.83
Each
units
2.4 → 4 A 600 V ac 4 A - - 690 V ac Direct Contactor - ZE NO/NC 2 6 W Automatic, Manual Screw
RS Stock No. 751-5990
Mfr. Part No.3RU2126-4PB0
BrandSiemens
HK$1,050.66
Each
units
- - 3 A 3P Sirius Innovation 220 V dc, 400 V ac - - 3RU NO/NC 2 18.5 kW Automatic, Manual Screw
RS Stock No. 445-7911
Mfr. Part No.1SAZ211201R1038
BrandABB
HK$709.71
Each
units
4.5 → 6.5 A - 6.5 A 3P A Line 690 V ac Clip On - TA25 NO/NC 2 2.2 W Automatic, Manual Screw
RS Stock No. 685-1560
Mfr. Part No.RF380400
BrandLovato
HK$356.51
Each
units
2.5 → 4 A - 4 A 3P - - - - RF38 - - - Automatic, Manual -
RS Stock No. 744-8020
Mfr. Part No.LR3D16
HK$749.95
Each
units
9 → 13 A - 25 A - TeSys 690 V ac DIN Rail Mount - LRD - - - - Screw
RS Stock No. 817-5335
Mfr. Part No.LR3D086
HK$889.96
Each
units
- - 4 A - TeSys - - 690 V ac LR3D - - - Push Button Screw
RS Stock No. 312-4070
Mfr. Part No.LR9D5369
HK$3,958.83
Each
units
90 → 150 A 24 V dc 105 A - TeSys 440 V ac Direct Contactor 17 → 32 V dc LR9D - - 59 kW - Screw
RS Stock No. 609-8003
Mfr. Part No.LR9F7375
HK$4,819.45
Each
units
200 → 330 A - 630 A - TeSys 1 kV ac Direct Contactor 24 V dc LR9F - - 100 W Manual Solder Tag
RS Stock No. 817-5313
Mfr. Part No.LR3D350
HK$1,154.51
Each
units
- - 50 A - TeSys - DIN Rail Mount, Plate 690 V ac LR3D - - - Push Button Screw
RS Stock No. 455-6232
Mfr. Part No.GJL1213001R7101 - B6S-30-10-1.7-71
BrandABB
HK$419.76
Each
units
- - 9 A - B Range 690 V ac - - B6 3NO 1 4 kW - Screw
RS Stock No. 764-9062
Mfr. Part No.1SAX111001R1103
BrandABB
HK$759.16
Each
units
0.8 → 2.7 A 600 V ac/dc 1.5 A dc, 3 A ac 3P AF Range 250 V dc, 500 V ac - 690 V ac E16 NO/NC 2 - Automatic, Manual -
RS Stock No. 608-7299
Mfr. Part No.CAD32M7
HK$328.40
Each
units
- - 10 A - TeSys 690 V ac - - CAD 3NO/2NC - - - Screw