Contact Resistance Meter : PCRM-100SM

Motwane’s PCRM-100SM is a true DC Contact Resistance meter designed to provide accurate and reliable results at a very reasonable cost. The instrument is based on the Kelvin four wire connection method for the measurement of low resistance.

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    Motwane’s PCRM-100SM is a true DC Contact Resistance meter designed to provide accurate and reliable results at a very reasonable cost. The instrument is based on the Kelvin four wire connection method for the measurement of low resistance. PCRM 100SM has a true 100A DC test current suitable for testing Circuit Breakers, Bus Bars, Isolators, Cables, etc. PCRM 100SM has a dual ground feature considering the safety of the operator and equipment. PCRM100SM is very lightweight and easily portable, and comes with heavy duty test leads with C clamp and crocodile clips to suit different applications.


    Stationary and moving contacts are built from alloys that are formulated to endure the stresses of electrical arcing. However, if contacts are not maintained on a regular basis, their electrical resistance builds up due to repeated arcing, resulting in a significant decrease in the contact’s ability to carry current and an increase in resistance. Excessive corrosion of contacts is detrimental to the breaker’s performance. Hence to check contacts, apply DC and measure the contact resistance or voltage drop across the closed contacts. The use of a higher current value gives more reliable results than using lower current values. The resistance value is usually measured in micro ohms (μΩ).

    PCRM-100SM is specially used to measure static contact resistance of LV, HV, EHV circuit breaker contacts installed in energized switchyards. High accuracy and repeatability make it a reliable tool for quality assurance and easy operations. It is a very handy tool for quick maintenance checks in various industries.

    Typical resistance measurement applications are: 

    Circuit Breaker contact resistance 
    Bus bar joints 
    Isolator contacts 
    Weld joints 
    Bond resistance


    • 100A true DC test current 
    • Resistance range: 0.1µΩ to 2mΩ 
    • Direct mV drop reading 
    • Internal memory of 100 test
    • Dual grounding facility 
    • Lightweight & portable
    • Rust removing C clamp 

    Test Current Injection: 100A DC 

    Range & Resolution: 200µΩ with 0.1µΩ 
                                  2000µΩ with 1µΩ 

    Basic Accuracy: ± 2% of reading, ± 1 digits 
    (From 10% of the range)

    Measurement Principle: Four wire measurement 
    Display: 3 ½ LCD with a backlight
    Memory Storage: 100 tests

    Physical Specifications 

    Dimensions (DxWxH): 320mm x 435mm x 188mm 
    Weight: 7 Kg approx

    Power Supply 

    Mains: 115V-230V, 50Hz / 60Hz single phase AC supply 
    Power Consumption: 35VA


    Operating Temperature: 0°C to 50°C
    Storage Temperature: 0°C to 55°C
    Humidity: Less than 95% RH, non condensing

    Standard Accessories 

    • 15 meters lead set with C clamp 75mm opening 
    • Master earthing cable (5 meters) 
    • Mains power cord 
    • User manual 
    • Calibration certificate 
    • Spare fuse (250mA/250V slow blow) 
    • Carry case

    Optional Accessories 

    • 22 meters lead set with 

    C Clamp 50mm jaw size 
    C Clamp 100mm jaw size 
    C Clamp 150mm jaw size 
    Heavy duty crocodile clip 32mm jaw size.

    • 15 meters cable (heavy crocodile clip 32mm jaw opening) 

    Our Customers

    Motwane’s customer base is a testament to its ongoing ability to provide reliable, accurate, and long-lasting products, resulting in enduring relationships that are based on mutual satisfaction, loyalty, and trust.

    Contact Us

    Motwane products are highly reliable, built with great quality, and deliver accurate results.  We at BSES Rajdhani Power have been using Motwane products for many years, and continue to do so.

    Shailendra Saxena

    Additional VP Protection BSES Rajdhani Power Ltd.

    Motwane is the oldest and the most trusted company in electrical testing products and solutions also. Motwane is known for reliable and rugged products also, we have procured from them. And our organization has been using these products and have found them satisfactory in performance and services also.

    Mr. Shrikant S Rajurkar

    Director Technical MSETCL

    By using the MOT-WARE software, all equipment testing difficulties have been removed, leading to increased efficiency and happy clients.

    Mr. Milind Thekedar

    Managing Director JBS Enterprises Pvt. Ltd.

    Motwane offers great products! The company fullfills our demands, and supplies reliable products for our Power, Oil & Gas, and other industry projects.  

    Justin Thomas

    FAWAZ Trading & Engineering Services Co. W.L.L.

    MOTWANE is reputed brand since many years & we prefer it for all our International Projects

    Nikunj Mistri

    DGM- India Operations MBH Power Pvt. Ltd.

    We are very satisfied on Motwane’s oil testing products to test electrical properties of Insulation Oil


    LABGULF Sharjah UAE

    TATA Projects regularly uses Motwane’s Test & Measurement equipment for various undertakings. We are satisfied with the product performance!

    Naiyar Kamal Siddiqui

    AGM Projects Tata Projects Ltd.

    MOT-WARE will enable us to go live with data immediately after recording

    Sanjay Sarkar

    Head Projects IBMS SPG, Sterling and Wilson

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    It’s easy to switch to Motwane. Our specialists take care of all conceivable requirements your project may have. With over a 100 years of experience in delivering world-class projects, Motware is the right choice.

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