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Contact Resistance Tester

Contact Resistance Testers & Meters for Sale

The contact resistance test (commonly known as the Ductor test) measures the resistance of electrical connections such as joints, terminations, connectors, etc. These can be connections between any two conductors, for instance busbar sections or cable connections. The test measures the resistance at the micro- or milli-ohm level and is used primarily to verify that electrical connections are made properly, and can detect the following problems:

  • Loose connections
  • Adequate tension on bolted joints
  • Eroded contact surfaces
  • Contaminated or corroded contacts

This is particularly important for contacts that carry large amounts of current (e.g. switchgear busbars) as higher contact resistance leads to higher losses and lower current carrying capacity.

Also check our EMF Meters!



Image Ad title Price Condition Location
Raytech USA - MICRO JR 2 Micro Ohm Meter $ 3300.00 USDNewUS
Raytech USA MICRO JR 2 $ 0.00 USDUsedUS
The 2840 is a resistance meter from BK Precision. A resistance meter is a type... $ 549.00 USDUsedUS
The 2841 is a resistance meter from BK Precision. A resistance meter is a type... $ 1495.00 USDUsedUS
The 4620 is a resistance meter from AEMC. A resistance meter is a type of test... ContactUsedUS
The 580 is a Micro Ohmmeter from Keithley. Micro ohmmeters take low-resistance... ContactUsedUS
The GOM-804 is a Milli Ohmmeter from Instek. When engineers need to collect... $ 545.00 USDUsedUS
The GOM-804GP is a Milli Ohmmeter from Instek. When engineers need to collect... $ 727.00 USDUsedUS
The GOM-805 is a Milli Ohmmeter from Instek. When engineers need to collect... $ 900.00 USDUsedUS
The PRS-202 is a used Resistance Meter from IET Labs. A resistance meter is a... ContactUsedUS
Valhalla 4100ATC The 4100ATC Digital Ohmmeter measures resistance from 200 mohms to 20 $ 3992.00 USDUsedUS
Valhalla Scientific 4150ATC Digital Micro-Ohmmeter ContactUsedUS
Valhalla Scientific 4300B Digital Micro-Ohmmeter ContactUsedUS
Vanguard Instruments Company WRM-10P ContactUsedUS


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