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Circuit Breaker

A switch automatically thrown in the event of a short or overload.

See Also: RCCB


Showing results: 211 - 225 of 272 items found.

  • Programmable DC Power Supply

    CBCT - Manta Test Systems

    The CBCT is a variable voltage DC power supply designed specifically to test substation circuit-breaker Open and Close coils. The CBCT uses the substation’s DC power supply to electronically generate a programmable output voltage from 5% to 95% of the source voltage. The CBCT can maintain up to an 80A test current while maintaining 2% or better voltage regulation during the circuit breaker coil operation.

  • 10A DIGITAL MICRO-OHMMETER

    MPK-2000e - MEGABRAS srl

    The MPK-2000e digital very low resistance ohmmeter is a portable, microprocessor controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1mA up to 10A. It uses the Kelvin-type, four-terminals measurement principle, thus eliminating errors caused by lead and contact resistances.

  • Power Probe III Set

    PP319FTC - Matco Tools

    Full functioning voltmeter measures in 1/10th of a volt increments from 1/10th of 1V up to 70V. Easy to read dual polarity indicators: red (+) symbol indicates positive green (-) symbol indicates negative. Circuit breaker protects the vehicles electrical system and your Power Probe. 20' extension lead gives you 40' total of lead. Great for RV'S, trucks and trailers.

  • 100 Amp Intelligent Power Management

    IPMDS100 - Technology Research Corp.

    - Intelligent Power Management System- 3 - 20 Amp Single Phase Outlets- 3 - 40 Amp Three Phase Outlets- 2 - 60 Amp Three Phase Outlets- Automatic Load Shedding- 100 Amp Mil Spec Input and Output Connector- Easy Access Circuit Breakers- Phase Over Current Protection- Low Voltage Warning- Built In Press to Test

  • 28 Days Test Bench (Single Phase & Three Phase)

    SCR ELEKTRONIKS

    The SCR Elektroniks 3 station MCB 28 Days and Temperature Rise Test Bench is economically designed to verify the 28 Days Test (21 hr ON, 3 hr OFF Test) as per clause 9.9 of IEC 60898-1 and Temperature Rise of the parts of a Circuit Breaker specified in Table 6 of clause 8.4.1 measured under the conditions specified in clause 9.8.2 of IEC 60898-1.

  • Contact Resistance Meter

    The Motwane Manufacturing Company

    High contact resistance values are a definite cause of the failure or less than optimal performance in a wide variety of electrical devices. Contact resistance testing is therefore most critical to measure the resistance of electrical connections in switching devices, circuit breakers, isolators, busbars, relays, joints, connectors, cables, and cable joints. The device helps to find destructive or corroded contacts and hence protects substation devices from damage.

  • Digital Earth Resistance Testers

    ST-1520 - MRC ltd.

    Capable of measuring earth voltage.2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit.Auto power off function.The timer operates automatically for approximately three to five minutes when the "push button switch" and "timer on button" are pressed together.

  • Advanced Primary Injection Test Set

    PI-2500 - ETI Precision

    The PI-2500 is a versatile and technologically advanced primary injection tester capable of testing circuit breakers up to 2000 amperes frame size. It incorporates a low-impedance output transformer with dual secondaries to provide optimal impedance matching to a wide range of breaker sizes. High-capacity internal fan cooling allows maximum utilization of the output transformer and faster recovery after overload conditions. It is housed in a rugged aluminum frame enclosure with removable sides allowing easy access to all internal components to facilitate ease of service and maintenance. The output of the test set is controlled by means of a proven SCR controller. This provides precise initial phase angle control to reduce DC offset for inductive loads and more consistent pulse currents.

  • Stored Energy Solenoid Drivers

    B-1014 - ROSS ENGINEERING CORPORATION

    The remote contact controlled HCA Series and the SCR controlled HCB Series of Stored Energy Solenoid Drivers produced by Ross Engineering Corporation are used for high speed opening or closing of Ross Circuit Breakers and Contactors. They perform high speed microseconds to milliseconds actuation of various electromechanical devices. The units feature minimum internal time delay, trigger signal overload protection, and up to 3000 joules of energy storage.

  • Dynamic Micro Ohm Meter

    PRIME 200 - EUROSMC, S.A.

    It is the only micro ohm meter in the market that integrates both the contact resistance and the dynamic resistance measurement (DRM) for cost-efficient condition evaluation of contacts in SF6 and vacuum type circuit breakers; PRIME is a high current micro-ohmmeter that provides true pure DC with smart control up to 200 A, a wide measurement range with high power, dual ground testing process, thermal printer, touch display, pre-defined test modes and automatic reporting.

  • Dynamic Micro Ohm Meter

    PRIME 600 - EUROSMC, S.A.

    It is the only micro ohm meter in the market that integrates both the contact resistance and the dynamic resistance measurement (DRM) for cost-efficient condition evaluation of contacts in SF6 and vacuum type circuit breakers; PRIME is a high current micro-ohmmeter that provides true pure DC with smart control up to 600 A, a wide measurement range with high power, dual ground testing process, thermal printer, touch display, pre-defined test modes and automatic reporting.

  • 10 A True DC Micro-Ohmmeter

    AUTO-OHM 10 - Manta Test Systems

    The Vanguard Auto-Ohm 10 is a 10-ampere battery powered micro-ohmmeter designed for low-resistance-measuring applications such as the measurement of resistance in circuit breaker contacts, bushing contact joints, and welding joints. The unit is powered by four 3400mAh, 3.7Vdc Li-Ion rechargeable batteries. With these high capacity batteries, up to 2,900 tests per charge (10A/2 second duration) can be performed in the field. The Auto-Ohm 10 features a built-in charger that can charge the batteries when the unit is not in use.

  • Low Resistance Or Continuity Testing

    Megger Group Ltd.

    From Megger, these highly accurate, easy to operate instruments measure resistance with resolution as fine as 0.1 micro-ohm. Digital micro-ohmeters and DLROs measure contact resistance of switch and circuit breakers, aircraft frame bonds, and rail and pipeline bonds just to name a few of the applications. Megger has models available for testing using test currents from 0.5 mA to 200 amps covering a multitude of applications that require precise low-resistance measurements.

  • 300kV/5mA DC Hipot Tester

    HDZG - HD Power Test Equipment Co.ltd

    HDZG-305 300kV/5mA DC high voltage tester is used for testing DC high voltage for zinc oxide arresters,magnetic blowing arresters, power cables,generators,transformers,circuit breakers and other equipments,which is suitable for electric power branch,power department of factories,scientific research units,railway,chemical industry,and power plants.

  • SF6 Optical Gas Imaging Camera

    FLIR GF306 - Teledyne FLIR

    The FLIR GF306 optical gas imaging camera visualizes sulfur hexafluoride (SF6) and other gas emissions without the need to shut down operations. SF6 is used in the electric power industry as an insulator and quenching medium for gas-insulated substations and circuit breakers. The portable, non-contact GF306 allows you to quickly scan substations for leaks while maintaining a safe distance from high-voltage equipment. By catching leaks early, the GF306 reduces lost revenue to breakdowns and repairs.

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