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EATON Definite Purpose Contactors, Two and Three Pole
Eaton definite purpose contactors are used in the HVAC, refrigeration and industrial control industries to switch electrical loads ON and OFF. These contactors are ideal for low-duty-cycle applications that need low-cost switching of single- and three-phase loads of as motors & resistive heatin...g loads.Read more
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- They are designed for industrial control applications and are compatible with AC & DC control circuits.
- These contactors have a 2 or 3-pole configuration and a current rating of 25A.
- They offer sealed housing and removable covers for enhanced safety & leakproof operations.
- These contactors have a universal footprint for easy installation and reduced downtime.
- Selected models have a built-in surge suppressor to protect the circuit from voltage spikes and transients.
Standards and Approvals
- CSA
- UL
- CE
- RoHS
Frequently Asked Questions
How to install these contactors?
- Select the contactor with the appropriate voltage and current rating for your specific application.
- Install the contactor in a suitable location, following the manufacturer's instructions. Make sure it is secured properly and level.
- Connect the power supply and load wires to the contactor. Follow the wiring diagram provided by the manufacturer, ensuring the wires are connected to the correct terminals.
- Connect the control circuit wires to the appropriate terminals on the contactor. This will be based on the specific control circuit used in your application.
- Turn on the power and test the contactor to ensure it is functioning correctly. Use a multimeter to measure the voltage and current to verify they are within the contactor's rated values.
How to maintain these contactors?
- Inspect the contactor regularly to ensure it is in good condition. Check for any signs of damage, such as overheating, corrosion or wear.
- Clean the contactor and the surrounding area to remove dust and debris, which can cause overheating and interfere its operation.
- Store these contactors in a clean, dry and cool place when not in use to prevent corrosion and damage.
- Regularly inspect the control circuits that activate the contactor.
How do I test an Eaton definite-purpose contactor?
- Turn off power to the circuit where the contactor is installed.
- Inspect the contactor for any signs of damage or wear, such as burned or pitted contacts or a damaged coil.
- Verify that the control circuit is functioning correctly and that the contactor is receiving the correct signals.
- Use a multimeter to measure the voltage and current flowing through the contactor.
- Verify that the readings match the contactor's rated values.
- Energise the control circuit and observe the contactor's operation.
- Verify that the contacts close and open properly and that the contactor is switching the load on and off as expected.
- If the contactor has built-in overload protection, test it by applying a load that exceeds the rated current and verifying that the overload protection trips and disconnects the load.
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