We offer PC based Contactor Test Benches to serve all your needs of IS/IEC 60947.

Our Contactor Test Bench is capable to perform following:

• Contactor Continuity Test:
  Continuity test is basically conducted to ensure proper contact between moving and fixed contacts. Continuity test is conducted by doing Contactor On & Off for say 50 times and Contact Make/ Break is checked.

• Contactor Pick up Voltage Measurement and Test:
  Coil Voltage is automatically increased steadily from 0 to rated value, and the voltage at which Contactor gets picked up is measured and tested.

• Contactor Drop off Voltage Measurement and Test:
  Coil Voltage is automatically decreased from rated value till Contactor gets dropped off, this value is captured, measured and tested.

• Contactor Pick up/ Drop off Time Measurement and Test:
  With the help of high speed analog cards, We plot Voltage, Current and Continuity graphs in order to find out the Pick up time and Drop off time of the Contactor with instantaneous voltage applied and removed.

• Contactor Coil Current/ VA rating Measurement and Test:
  Every contactor coil has some resistance and inductance and due to manufacturing process defects, quality of the Coil gets hampered and eventually performance of the Contactor too. Hence, Coil current/ VA rating measurement test is conducted. In this test, 85%, 100% and 110% rated coil voltage is applied and corresponding current (mA) consumption and Power Factor is measured. This test ensures that coil quality being used in the production is optimum and controlled.

• Contactor Humming/ Vibration Test:
  Contactor Coil is energized at predefined voltage, and its Humming/ Vibration is measured and tested.

• Contact Resistance or mV drop measurement and Test:
  Moving Contacts/ Fixed contacts should make contact firmly and should not offer any additional contact resistance. To ensure this, Contact Resistance/ mV drop is measured and tested. This test ensures that Contacts are not offering any subsequent contact resistance and hence do not heat up during operation.
  

• DiElectric Test:
  Every contactor should have sufficient gap between their moving contact and fixed contact, when in open state, to ensure proper isolation. To ensure this, HV (High voltage)/ Dielectric test is conducted on Contactor. In this, High voltage in the range of 2.5KV or 3KV or sometimes more depending on the Contactor capacity, is applied across the open poles of the Contactor and the leakage current is measured in the range of 0.1mA to 50mA. This leakage current value should be minimum or below specified limits. This is product deteriorating test, hence usually conducted at the end of all tests.

• Contactor Contact Gap/ Over Travel/ Total Travel measurement and Test:
  This is a Mechanical measurement Test. In Contactor, Moving contacts are assembled on to the Fixed contacts. Due to spring, moving contacts are maintained at some height and when Contactor is made On, still there is some over travel capacity to ensure the proper contact. Hence, CG,OT,TT (Contact Gap, Over Travel, Total Travel) is measured and tested.

• Contactor Moving Contact Spring Force Measurement and Test:
  Every Contactor has a spring which holds the Moving Contacts up and elevated. This spring should have enough force to push and to keep the Moving Contacts up. If the Spring Force is low, then it’s Contacts may Close accidentally in presence of other component’s vibrations in the panel. And if the Spring Force is very high, then its Contacts may Open accidentally in presence of other component’s vibrations. To ensure this, Moving Contact Spring Force is measured and tested.

• Contactor Mechanical/ Electrical Life Test:
  Contactor Life is defined in 2 categories, Mechanical Life and Electrical Life. In this test, Contactors are made On/ Off for millions of operations with and without electric current through its poles. And all the necessary parameters like coil current, coil power factor, Pick up Voltage/ Time, Drop off Voltage/ Time etc are measured and tested.

NSMView Logic Builder

Our proprietary “NSMView Logic Builder” software offers a user-friendly interface for creating and running test programs for above Function Modules.

It is Designed with ease-of-use in mind, even beginners can create and modify test programs using a straightforward table format. This approach ensures that the testing process is clear and accessible, promoting efficiency and adaptability.

Salient Features

• Auto Mode: For Production Use
• Data Logging and Traceability against Sample Identifier.
• Manual Mode: For Maintenance and Troubleshooting
• Calibration Mode: For Calibration of internal instruments.
• Test Master: Add/ Edit/ Delete Test Recipes
• Result CSV file direct email facility. No need of Pen drive.
• Multi-User system with different authorities: Engineering, Quality, Maintenance, Production, Operator.
• System Health Check: For Preventive and Corrective Maintenance.
• Industry 4.0 compliant system.
• Machine to Machine communication capability.
• 21CFR compliant.

Benefits

• ISO 9001 Compliance: Our systems helps you to adhere and implement ISO 9001 standards compliance in your manufacturing process.

• Reduced Dependency on Skilled Labor: Our Contactor Test Benches are largely automated, they require less skilled human intervention, reducing labor costs and human errors during testing

• Traceability and Reporting: Data logging and reporting capabilities, providing detailed information on each Contactor’s test results are our by default features. This allows manufacturers to maintain full traceability and perform root cause analysis in case of defects.

• Expert OEM Support: Our dedicated online support system ensures that you receive assistance directly from our engineers.

• Modular Design: Our state-of-the-art rack systems are highly modular, adapting to different production needs and ensuring long-term flexibility.