Relays
Switchgear relays are protection devices that detect residual current in a circuit or the overload current of a motor and either open the circuit or give a trip signal to a contactor. They are used in residential, commercial and industrial distribution panels to protect people against electric shock, the installation against fire caused by insulation faults, and motors against overload. This category consists of two subgroups: residual current relays of 2 and 4 poles with 30 mA and 300 mA thresholds, and thermal overload relays that work with a contactor and whose setting range is determined by the motor current; Schneider Electric, ABB and Siemens are the predominant brands. For a residual current relay, choose the number of poles, rated current, residual current threshold and AC or A type; for a thermal overload relay, choose the current setting range and contactor compatibility according to your load. The two groups are not alternatives to each other; in the same panel they work together against different faults. Phase, voltage and current monitoring relays are listed in the Protection Relays category, and timer relays and socketed automation relays under Automation and Control.
Products
- Siemens 5SV1313-7KK06 Residual Current Protection Device Type A 6 A — Siemens · SKU: 5SV1313-7KK06 · TRY 10,348.00 · Made to order
- Siemens 3RU2116-1FB0 Thermal Overload Relay 3.5-5 A — Siemens · SKU: 3RU2116-1FB0 · TRY 1,051.68 · Made to order
- Siemens 5SV6016-7KK10 Arc Fault Detection Device (AFDD), C10, 1+N, 230 V — Siemens · SKU: 5SV6016-7KK10 · TRY 24,688.00 · Made to order
- Schneider EZ9R39225 Easy9 Residual Current Device 2 Pole 25A 30mA AC Type 240V — Schneider Electric · SKU: EZ9R39225 · TRY 1,044.05 · In stock
- Siemens 3RU2116-0GC0 Thermal Overload Relay 0.45-0.63 A — Siemens · SKU: 3RU2116-0GC0 · TRY 3,756.00 · Made to order
- Schneider LRD10 TeSys D Thermal Overload Relays 4...6A Class 10A — Schneider Electric · SKU: LRD10 · TRY 1,224.14 · In stock
- Siemens 3RU2116-1HC0 Thermal Overload Relay 5.5-8 A — Siemens · SKU: 3RU2116-1HC0 · TRY 3,756.00 · Made to order
- Siemens 3RU2126-4AC0 Thermal Overload Relay 11-16 A — Siemens · SKU: 3RU2126-4AC0 · TRY 4,456.00 · Made to order
- Siemens 5SV6016-7KK32 Arc Fault Detection Device (AFDD), C32, 1+N, 230 V — Siemens · SKU: 5SV6016-7KK32 · TRY 28,151.00 · Made to order
- Schneider LRD05 TeSys D Thermal Overload Relays 0.63...1A Class 10A — Schneider Electric · SKU: LRD05 · TRY 1,224.14 · In stock
- Schneider LRD22 TeSys D Thermal Overload Relays 16...24A Class 10A — Schneider Electric · SKU: LRD22 · TRY 1,249.21 · In stock
- Siemens 3MU7210-1AA0 Thermal Overload Relay 23 - 32A — Siemens · SKU: 3MU7210-1AA0 · TRY 2,309.06 · In stock
- Schneider LR2K0316 TeSys K Differential Thermal Overload Relays 8...11.5A Class 10A — Schneider Electric · SKU: LR2K0316 · TRY 1,356.36 · In stock
- Schneider A9R14291 Acti9 iID Residual Current Device 2 Pole 100A 300mA AC Type — Schneider Electric · SKU: A9R14291 · TRY 3,487.77 · Made to order
- Schneider A9R11480 Acti9 iID Residual Current Device 4 Pole 80A 30mA AC Type — Schneider Electric · SKU: A9R11480 · TRY 4,308.42 · In stock
- Siemens 3RU2116-1AB0 Thermal Overload Relay 1.1-1.6 A — Siemens · SKU: 3RU2116-1AB0 · TRY 1,051.68 · In stock
- Schneider Electric A9R44225 iID 2P 25A 300mA AC — Schneider Electric · SKU: A9R44225 · TRY 3,052.42 · In stock
- Siemens 3RU2116-1FC0 Thermal Overload Relay 3.5-5 A — Siemens · SKU: 3RU2116-1FC0 · TRY 3,756.00 · Made to order
- Siemens 3MU7110-0QA0 Thermal Overload Relay 17 - 25A — Siemens · SKU: 3MU7110-0QA0 · TRY 1,506.75 · In stock
- Schneider Electric 50442 TOROID GA300 DIA. 300 mm — Schneider Electric · SKU: 50442 · TRY 52,986.51 · In stock
- Siemens 3RU2116-1DB1 Thermal Overload Relay - With Stop and Test Buttons 2.2-3.2 A — Siemens · SKU: 3RU2116-1DB1 · TRY 1,229.48 · In stock
- Siemens 3RU2146-4MB0 Thermal Overload Relay 80-100 A — Siemens · SKU: 3RU2146-4MB0 · TRY 4,555.32 · Made to order
- Schneider LRD14 TeSys D Thermal Overload Relays 7...10A Class 10A — Schneider Electric · SKU: LRD14 · TRY 1,224.14 · In stock
- Siemens 3RU2116-1DB0 Thermal Overload Relay - With Stop and Test Buttons 2.2-3.2 A — Siemens · SKU: 3RU2116-1DB0 · TRY 1,051.68 · In stock
- Siemens 3MU7310-2AA0 Thermal Overload Relay 23 - 32A — Siemens · SKU: 3MU7310-2AA0 · TRY 2,704.93 · In stock
How to choose Relays
Switchgear relays are protection devices that detect residual current in a circuit or the overload current of a motor and either open the circuit or give a trip signal to a contactor. They are used in residential, commercial and industrial distribution panels to protect people against electric shock, the installation against fire caused by insulation faults, and motors against overload.
- Separate overcurrent/leakage protection, motor starting and local isolation requirements.
- Select rated current, pole count and breaking capacity (kA) from the installation calculation.
- Match coil voltage, auxiliary contacts and tripping curve to the control circuit and load type.
Frequently asked questions
What is Relays and where is it used?
Switchgear relays are protection devices that detect residual current in a circuit or the overload current of a motor and either open the circuit or give a trip signal to a contactor. They are used in residential, commercial and industrial distribution panels to protect people against electric shock, the installation against fire caused by insulation faults, and motors against overload.
What should I compare when choosing Relays?
For a residual current relay, choose the number of poles, rated current, residual current threshold and AC or A type; for a thermal overload relay, choose the current setting range and contactor compatibility according to your load.
Which product groups are available under Relays?
The current subcategories include Residual Current Circuit Breakers (RCCB), Thermal Overload Relays. Open a subcategory to compare its products and technical details.