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Multi-Amp MS-2 Circuit Breaker & Overload Relay Test Set NIST Calibrat
This item is an excellent condition used Multi-Amp MS-2 Circuit Breaker & Overload Relay Test Set. Calibrated to NIST traceable standards on June 3rd, 2025. Includes large red/black test leads with clamps, small red/black banana test leads with clips, user manual, fixed power cable, spare fuses, traceable certificate of calibration, and 180 day warranty. All pictures are of the actual unit and accessories.
 
This item comes with a 6 Month (180 day) warranty. Every pre-owned unit we offer goes through meticulous inspection and NIST calibration to guarantee its reliability and durability.
 
For customers in the USA, all purchases arrive cleared. ALL brokerage or customs fees are prepaid by us.  Your item arrives FOB destination.
 
International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. For more information of clarification, please ask.
 
Will ship worldwide. We make our best efforts to get you the best shipping prices. Contact us for other international rates and we will be pleased to give you a quote. We accept VISA / Mastercard. Paypal is also accepted. Sales to within Canada are subject to 5% GST.  Ontario sales subject to 13% HST.
 
Contact us for Calibration options, including ISO 17025 Accredited Calibration for your Test Equipment! Visit stratatek.com/calibration for more details.

Multi-Amp MS-2 Circuit Breaker & Overload Relay Test Set NIST Calibrat

$3,999.00Price
Quantity

  • The MS-2 test set is used around the world by several thousand utility companies, industrial plants and electrical service organizations. Using the latest technology, Model MS-2 is a self-contained test set that incorporates a variable high-current output and appropriate control circuitry and instrumentation for testing thermal, magnetic or solid-state motor overload relays; molded-case circuit breakers; and ground-fault trip devices.

    • Digital memory ammeter: High-accuracy, direct reading instrument has read-and-hold memory for measurement of short-duration currents.
    • Digital, multi-range timer: Crystal-controlled, high accuracy instrument with autoranging measures operating time to 1 millisecond.
    • High-current output: Provides instantaneous currents up to 750 amperes through a 125 ampere breaker.
    • Rugged and lightweight: Unit weighs only 33 lb (15 kg) and is tough enough to withstand daily field or plant use.
    • Solid-state output initiate circuit: Solid-state circuit eliminates need for contact maintenance.
    Input 120 volts OR 240 volts, 50/60 Hertz single-phase
    Output Ranges 0 to 120 volts at 5 amperes
    0 to 24 volts at 25 amperes
    0 to 6 volts at 120 amperes
    0 to 3 volts at 240 amperes
    Output Capacity The test set is capable of testing the time delay characteristics of devices rated up to 125 amperes using a test current of
    three times their rating (375 amperes). Additionally, to perform an instantaneous trip test, it will provide 750 amperes
    through a typical, 125-ampere, molded-case circuit breaker connected with the test leads provided with the test set
    Ammeter Display: 3½-digit
    Ranges (switch-selected): 0 to 1.999/19.99/199.9/750 amperes
    Timer Display: 5-digit
    Ranges (switch-selected):

    A. 0 to 99.999 seconds
    B. 0 to 999.99 seconds
    C. 0 to 99999 cycles
    Timer Control Circuit A. Current Actuated
    B. Normally Closed
    C. Normally Open

  • Output Ranges.

    The output is continuously adjustable in four ranges to accommodate a variety of test-circuit impedances:

    • 0 to 5 A at 120 V max.
    • 0 to 25 A at 24 V max.
    • 0 to 120 A at 6 V max.
    • 0 to 240 A at 3 V max.
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