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庫存編號 746-0730
製造零件編號3RH2122-1AF00
BrandSiemens
TWD1,479.00
單位
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 2NO/2NC - - - Screw
RS庫存編號 746-0759
製造零件編號3RH2140-1AP00
BrandSiemens
TWD1,479.00
單位
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 4NO 4 - - Screw
RS庫存編號 746-0749
製造零件編號3RH2131-1AP00
BrandSiemens
TWD1,479.00
單位
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 3NO/1NC 4 - - Screw
RS庫存編號 746-0743
製造零件編號3RH2131-1BB40
BrandSiemens
TWD1,158.00
單位
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 3NO/1NC 4 - - Screw
RS庫存編號 122-9449
製造零件編號3RT2026-1AL20
BrandSiemens
TWD3,318.00
單位
22 A 230 V ac 40 A 3P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RT2 3NO 2 - - Screw
RS庫存編號 746-0733
製造零件編號3RH2122-1AP00
BrandSiemens
TWD1,479.00
單位
- - 10 A - SIRIUS Innovation 690 V ac - - 3RH2 2NO/2NC - - - Screw
RS庫存編號 122-9420
製造零件編號3RH2140-2BB40
BrandSiemens
TWD1,711.00
單位
- 24 V dc 10 A 4P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RH2 4NO 4 - - Screw
RS庫存編號 122-9438
製造零件編號3RT2016-2JB41
BrandSiemens
TWD1,972.00
單位
9 A 24 V dc 22 A 3P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RT2 3NO 1 - - Cage Clamp
RS庫存編號 706-1535
製造零件編號3RU2116-1AB0
BrandSiemens
TWD1,538.00
單位
1.1 → 1.6 A - 1.6 A 3P Sirius Innovation 690 V ac Direct Contactor - 3RU NO/NC 2 0.55 kW Automatic, Manual Screw
RS庫存編號 751-8860
製造零件編號3RB2066-1MC2
BrandSiemens
TWD21,282.00
單位
- - 4 A 3P Sirius Classic 220 V dc, 230 V ac - - 3RB NO/NC 2 250 kW - Screw
RS庫存編號 638-7432
製造零件編號3RB2056-1FC2
BrandSiemens
TWD11,302.00
單位
50 → 200 A - 315 A 3P Sirius Classic 1 kV ac Direct Contactor - 3RB NO/NC 2 90 kW Automatic, Manual Screw
RS庫存編號 122-9436
製造零件編號3RT2016-1JB42
BrandSiemens
TWD1,972.00
單位
9 A 24 V dc 22 A 3P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RT2 3NO 1 - - Screw
RS庫存編號 203-3927
製造零件編號3TH4293-0AP0
BrandSiemens
TWD3,423.00
單位
- 230 V ac 10 A 8P - - - - - 4NO/4NC - - - -
RS庫存編號 122-9418
製造零件編號3RH2140-1BW40
BrandSiemens
TWD1,711.00
單位
- 48 V dc 10 A 4P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RH2 4NO 4 - - Screw
RS庫存編號 122-9419
製造零件編號3RH2140-1JB40
BrandSiemens
TWD1,976.00
單位
- 24 V dc 10 A 4P Sirius Innovation 690 V DIN Rail Mount, Snap On - 3RH2 4NO 4 - - Screw
RS庫存編號 203-3937
製造零件編號3TH4346-0BB4
BrandSiemens
TWD7,094.00
單位
- 24 V dc 10 A 10P - - - - - 7NO/3NC - - - -
RS庫存編號 751-5990
製造零件編號3RU2126-4PB0
BrandSiemens
TWD3,864.00
單位
- - 3 A 3P Sirius Innovation 220 V dc, 400 V ac - - 3RU NO/NC 2 18.5 kW Automatic, Manual Screw
全新
RS庫存編號 213-0554
製造零件編號3RH2122-2JB40
BrandSiemens
TWD1,976.00
單位
- 24 V dc 3 A - SIRIUS - - - - 2NC/2NO - - - -
RS庫存編號 203-2151
製造零件編號3RH2140-2SB40
BrandSiemens
TWD1,976.00
單位
- 24 V dc 10 A 4P SIRIUS - - - - 4NO - - - -
RS庫存編號 866-5759
製造零件編號3RH2131-1BG40
BrandSiemens
TWD1,896.00
單位
- - 6 A - SIRIUS Innovation 690 V ac @ 1 A - - 3RH2 3NO/1NC 4 - - Screw