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. 746-0730
Mfr. Part No.3RH2122-1AF00
BrandSiemens
TWD1,479.00
Each
units
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 2NO/2NC - - - Screw
RS Stock No. 493-1239
Mfr. Part No.278440 & ZB12-10
BrandEaton
TWD1,153.00
Each
units
6 → 10 A 500 V ac 10 A - - 690 V ac Direct Contactor - ZB NO/NC 2 6 W Automatic, Manual Screw
RS Stock No. 744-6747
Mfr. Part No.CA3KN40FD
TWD1,419.00
Each
units
- - 10 A - TeSys K 690 V dc - - CA3KN 4NO - - - Screw
RS Stock No. 395-0425
Mfr. Part No.CAD32BD
TWD2,194.00
Each
units
- 24 V dc 10 A - TeSys 690 V dc DIN Rail - CAD 3NO/2NC - - - Screw
RS Stock No. 455-6210
Mfr. Part No.BC7-30-10-P01
BrandABB
TWD1,667.00
Each
units
- - 9 A - B Range 690 V ac - - BC7 3NO 1 5.5 kW - PCB
RS Stock No. 279-6292
Mfr. Part No.CA3KN31BD
TWD1,061.00
Each
units
- 24 V dc 10 A - TeSys K 690 V ac DIN Rail Mount, Panel Mount - CA3KN 3NO/NC - - - Screw
RS Stock No. 746-0759
Mfr. Part No.3RH2140-1AP00
BrandSiemens
TWD1,479.00
Each
units
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 4NO 4 - - Screw
RS Stock No. 394-9419
Mfr. Part No.LRD06
TWD1,765.00
Each
units
1 → 1.6 A - 1.6 A 3P TeSys 690 V ac Direct Contactor - LRD NO/NC 2 - Automatic, Manual Screw
RS Stock No. 261-5682
Mfr. Part No.LT3SA00M
TWD4,474.00
Each
units
- 115 V ac, 230 V ac - - TeSys 250 V ac - - LT3S NO/NC 2 100 VA Automatic Cage Clamp
RS Stock No. 326-813
Mfr. Part No.014565 & ZE-6
BrandEaton
TWD1,629.00
Each
units
4 → 6 A 600 V ac 6 A - - 690 V ac Direct Contactor - ZE NO/NC 2 6 W Automatic, Manual Screw
RS Stock No. 746-0743
Mfr. Part No.3RH2131-1BB40
BrandSiemens
TWD1,092.00
Each
units
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 3NO/1NC 4 - - Screw
RS Stock No. 122-9449
Mfr. Part No.3RT2026-1AL20
BrandSiemens
TWD3,318.00
Each
units
22 A 230 V ac 40 A 3P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RT2 3NO 2 - - Screw
RS Stock No. 323-072
Mfr. Part No.010094 & DILER-40(24V50HZ)
BrandEaton
TWD1,328.00
Each
units
- - 3 A - XStart 400 V ac - - DILER 4NO - - - Screw
RS Stock No. 746-0749
Mfr. Part No.3RH2131-1AP00
BrandSiemens
TWD1,479.00
Each
units
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 3NO/1NC 4 - - Screw
RS Stock No. 746-0733
Mfr. Part No.3RH2122-1AP00
BrandSiemens
TWD1,479.00
Each
units
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 2NO/2NC - - - Screw
RS Stock No. 122-9420
Mfr. Part No.3RH2140-2BB40
BrandSiemens
TWD1,711.00
Each
units
- 24 V dc 10 A 4P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RH2 4NO 4 - - Screw
RS Stock No. 817-5335
Mfr. Part No.LR3D086
TWD3,237.00
Each
units
- - 4 A - TeSys - - 690 V ac LR3D - - - Push Button Screw
RS Stock No. 394-9267
Mfr. Part No.LRD3359
TWD2,961.00
Each
units
48 → 65 A - 65 A 3P TeSys 690 V ac Direct Contactor - LRD NO/NC 2 - Automatic, Manual Screw
RS Stock No. 818-8537
Mfr. Part No.LRD4367
TWD9,757.00
Each
units
- - 95 → 120 A - TeSys - Panel Mount 600 V ac LRD - - - - Screw
RS Stock No. 400-8581
Mfr. Part No.LRD35
TWD2,059.00
Each
units
30 → 38 A - 38 A 3P TeSys 690 V ac Direct Contactor - LRD NO/NC 2 - Automatic, Manual Screw