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. 890-4290
Mfr. Part No.11RF933
BrandLovato
HK$334.17
Each
units
- 690 V ac - 3P - - Snap-On - RF9 1NO/1NC 2 2.2 kW Manual Screw
RS Stock No. 136-3673
Mfr. Part No.3RH2244-2BB40
BrandSiemens
HK$713.87
Each
units
- 24 V dc 10 A 8P Sirius Innovation 600 V dc, 690 V ac DIN Rail Mount 24 V dc 3RH2 4NO/4NC 4 4 W - Spring Load
RS Stock No. 493-0494
Mfr. Part No.276414 & DILA-22(24VDC)
BrandEaton
HK$449.26
Each
units
- - 4 A - XStart 415 V ac - - DILA 2NO/2NC - - - Screw
New
RS Stock No. 211-1779
Mfr. Part No.LR97D38M7
HK$997.97
Each
units
38 A 240 V 3 A - TeSys - - - - - - - - -
RS Stock No. 711-6600
Mfr. Part No.1SAZ721201R1014 TF42-0.41
BrandABB
HK$451.54
Each
units
0.31 → 0.41 A - 410 mA 3P AF Range 690 V ac/dc Direct Contactor - TF42 NO/NC 2 2 W Automatic, Manual Screw
RS Stock No. 744-6832
Mfr. Part No.CAD50MD
HK$799.19
Each
units
- - 10 A - TeSys 690 V dc - - CAD 5NO - - - Screw
RS Stock No. 203-2137
Mfr. Part No.3RH2131-2FB40
BrandSiemens
HK$537.32
Each
units
- 24 V dc 10 A 4P SIRIUS - - - - 3NO/1NC - - - -
New
RS Stock No. 211-1849
Mfr. Part No.LT4730BS
HK$911.66
Each
units
30 A 24 V 6 A SP TeSys - - - - 1NO+1NC - - - -
RS Stock No. 382-185
Mfr. Part No.LR2K0322
HK$418.38
Each
units
12 → 16 A 250 V dc, 690 V ac 16 A - TeSys 690 V ac Clip On 250 V dc, 690 V ac LR2K NO/NC 2 - Automatic, Manual Screw
RS Stock No. 493-0371
Mfr. Part No.278437 & ZB12-2,4
BrandEaton
HK$430.32
Each
units
1.6 → 2.4 A 500 V ac 2.4 A - - 690 V ac Direct Contactor - ZB NO/NC 2 6 W Automatic, Manual Screw
New
RS Stock No. 211-1661
Mfr. Part No.CA4KN22FW3
HK$503.86
Each
units
110 A 110 V 5 mA - TeSys - - - - 2NO+2NC - 0.0018 kW - -
New
RS Stock No. 211-1654
Mfr. Part No.CA3KN31FD3
HK$467.17
Each
units
110 A 110 V 5 mA - TeSys - - - - 3NO+1NC - 0.003 kW - -
RS Stock No. 395-0374
Mfr. Part No.CAD50BD
HK$547.38
Each
units
- - 10 A - TeSys 690 V ac - - CAD 5NO - - - Screw
RS Stock No. 203-2172
Mfr. Part No.3RH2131-1AD00
BrandSiemens
HK$453.40
Each
units
- 42 V ac 10 A 4P SIRIUS - - - - 3NO/1NC - - - -
RS Stock No. 711-6578
Mfr. Part No.1SAX121001R1102 EF19-1.0
BrandABB
HK$979.32
Each
units
0.3 → 1 A - 1 A 3P AF Range 690 V ac/dc Direct Contactor - EF19 NO/NC 2 54 W Automatic, Manual Screw
New
RS Stock No. 211-1760
Mfr. Part No.LR2D3561
HK$2,837.38
Each
units
38 A 690 V 5 A - TeSys - - - - - - - - -
RS Stock No. 706-1689
Mfr. Part No.3RU2126-4EC0
BrandSiemens
HK$1,000.85
Each
units
27 → 32 A - 32 A 3P Sirius Innovation 690 V ac Direct Contactor - 3RU NO/NC 2 15 kW Automatic, Manual Cage Clamp
RS Stock No. 122-1050
Mfr. Part No.RWB40E-3-A4U002
BrandWEG
HK$1,715.65
Each
units
2 A - 0.4 → 2 A 3P - 690 V DIN Rail Mount - RW_E 1NO/1NC 2 0.07 W Automatic, Manual Screw
RS Stock No. 122-1011
Mfr. Part No.CWCA0-13-00D02
BrandWEG
HK$314.33
Each
units
- 24 V 10 A (AC1) 4P - 690 V DIN Rail Mount - CWCA0 1NO/3NC 4 - - Screw
RS Stock No. 445-7933
Mfr. Part No.1SAZ211201R1009
BrandABB
HK$699.53
Each
units
0.16 → 0.25 A - 240 mA 3P A Line 690 V ac Clip On - TA25 NO/NC 2 2.2 W Automatic, Manual Screw