Earth Leakage Circuit Breaker Testers
test trip time and trip current values.
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Product
E-Z Check® Circuit Tester
61-035
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*Tests for correct wiring, open ground, reverse polarity, open hot, open neutral, hot on neutral, hot and ground reversed with open hot in 3 wire, 120 VAC circuits*Simulates ground fault for testing GFCIs*No-slip ergonomic design maximizes comfort*Premium neon lamps prevent false readings*Tough, impact-resistant case*2-year warranty
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Product
Circuit Breaker Time Interval Meter
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Measuring contact timings is useful for finding the contact bounces and non-simultaneity of contacts. This helps in finding the possible electrical or mechanical defects in the circuit breaker contacts. Timing analysis also make it possible to detect incorrect mechanical adjustments and wear phenomena of the circuit breaker by measuring the differences between the fastest and slowest phases.
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Product
6-way Round Pin Vehicle side Circuit Tester
7897
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Innovative Products of America
The 6-way Round Pin Trailer Circuit Tester tests trailer circuits on older light to medium duty trucks and RVs. Plug the 6 pole trailer tester into the back of the vehicle and apply the Brake Lights, Turn Signals, Running Lights etc.
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Product
Winding Resistance Tester with Demagnetisation Circuit
WRT-10D
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The WRT-10D is a high performance winding resistance tester designed for power transformer and large motor applications. It is equipped with a bright LCD display, a rugged high quality cable set, a built-in printer, a full QWERTY keypad and a demagnetisation circuit.
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Product
6-24V DC Heavy Duty Automotive Circuit Tester
1175
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Circuit tester with 1.5M of heavy duty cable and earth (crocodile) clip. Insulated contact point to prevent accidental shorting. Testing range 6-24V DC
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Product
Circuit Breaker Identifiers
188 FFF
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Standard Electric Works Co., Ltd
● The 188FFF doesn't have the function of the sensitivity adjustment. If the customers need the sensitivity adjustment function, plase refer to other models.● The 188FFF is a Fuse and Fault Finder which comprises of two parts : The Receiver and the Transmitter.● The Transmitter, draws a current from the mains supply circuit to which it is connected to. The Signal● Current from the Tx is at about 10kHz. The Transmitter is powered by the mains and requires no batteries.● The 10kHz signal current generated by the Transmitter is then searched(sniffed) by the Receiver to detect the Fuse, Circuit Breaker or the faulty circuit.● The Receiver is a tuned circuit which has it's center frequency tuned to about 10kHz. The sensor is located in the tip of the Receiver.● The amplitude of the received signal is shown on a bar-graph type Leds.● The more Leds ON, the stronger the signal.
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Product
Circuit Breaker Analyzer
CBA 1000
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CBA 1000 circuit breaker timing test equipment is a reliable and very accurate operating device for the maintenance and commissioning of circuit breakers in medium and high voltage substation. It can perform static and dynamic contact resistance measurement and it’s an accurate timing speed and motion analyzer.
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Product
Professional Cordless Circuit Tester
CT8002
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No Ground or clip required. No ground wire means no wire tangles nor time lost searching for grounding points. High Impedance Electronic circuitry. Safety V-groove needle accessory for piercing and carrying. Negligible current draw ( 20 micro-amps) is 10,000 times less than regular lamp type testers. This gives complete safety when working around sensitive electronic control modules and sensors. Operating range between 3 and 28 Volt DC in battery powered systems.
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Product
Mini AC Leakage Current Clamp Tester
M-104+
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MULTI MEASURING INSTRUMENTS Co., Ltd.
・33mmφCT window and ultra compact size.・Data-hold function. Especially useful when working in dark or hard to get areas.・Low cost type, Core shielding is not equipped.
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Product
Low Circuit Tester
26250
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Helps locate shorts or breaks in wiring. Complete with insulated grounding clip.
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Product
Circuit Breaker Contact Resistance Meters
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Vanguard Instruments Company, Inc.
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.
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Product
6-12V Heavy Duty Circuit Tester
1668
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Peaceful Thriving Enterprise Co Ltd
Check on 6 and 12V systems. To indicate whether there is an electrical potential at any low voltage point in the system. By using the pointed contact tip to pierce insulation on cables, it will also indicate if current is present. This can be helpful when tracing faults or add cable to a circuit.
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Product
First Trip Testing of Circuit Breakers
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Significance of Circuit Breaker "First Trip Time"A circuit breaker may not be called upon to operate and clear a fault for years, but when a fault occurs, it is expected to operate within it's published time-current characteristics. Unfortunately, frequently this does not happen... environmental contaminants, hardened grease, vibration and other factors can adversely affect the operating time of the circuit breaker.
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Product
12V Circuit Tester With LED Polarity Indicator
1658
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Peaceful Thriving Enterprise Co Ltd
Checks open or short circuits on 12V automotive computer circuits and all primary automotive electrical circuits. Safely tests standard primary automotive circuits and on-board computer controlled electrical system without damaging the micro-processor.
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Product
Measuring Earth Resistance
OSP-510
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Additional equipment to measure the earth resistance and soil resistivity AD-510.
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Product
Circuit Breaker Simulation Device
PSS01
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PSS01 is the circuit breaker simulator,which can conduct circuit breaker simulation to test the whole secondary relay scheme together with relay test set. It is very good accessory for protection relay test kit to avoid complicated software programming to finalize the same test.
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Circuit Breaker & Control Cabinet Simulator
SIM-CB6
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The SIM-CB6 is the circuit breaker simulator that will make you an expert in breaker testing. The SIM-CB6 enables you to simulate any type of circuit breaker (SF6, Air Blast, Oil, etc.) up to 6 contacts (2 contacts per phase), with or without closing/opening resistor contacts and control cabinets. This simulator will allow you to increase your knowledge on circuit breaker analyzer systems to ensure full efficiency once on the field.
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6-24V Heavy Duty Circuit Tester
1653
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Peaceful Thriving Enterprise Co Ltd
Check on 6 and 24V systems. Use on fuses, test connections and find short circuits quickly and easily. Available for checking on lights, starters, alternators, cooling and heating components, radios and relays.
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Battery Short Circuit Tester
TOB-BSCT-01
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Xiamen Tob New Energy Technology Co., Ltd
Battery Short Circuit Tester For Not Charging Semi-Finished Battery Core Checking Out. This Battery Short Circuit Tester is used for check out NG batteries for battery core without electrolyte filled or before battery charging. For lithium battery research, it is used for battery core after winding process or stacking process to check out bad battery with automatic alarm.
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Earth Testers
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Sanwa Electric Instrument Co., Ltd
Most facilities have grounded electrical systems, so that in the event of a lightning strike or utility overvoltage, current will find a safe path to earth. A ground electrode provides the contact between the electrical system and the earth.
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Product
4 Wire Earth Resistance Testers
2734 ER
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Standard Electric Works Co., Ltd
● Microprocessor-controlled with advanced safety features.● 4-wire testing only.● Automatic C spike check.● Auto power-off.● Auto data hold.● Large LCD (2000 counts).● Protective terminal cover.
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Product
Earth Bond Test Set
EC-12
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The Earth bond test is a basic safety test prescribed in many standards to test samples for the integrity of earthing continuity throughout the sample.
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Sensor Circuit Probe
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The probe can be used in 12/24 volt system with ECM/ECU either independently or used together with a diagnostic scanner to distinguish faults that lie in the sensor itself or the connection wires. The simulated voltage is used to emulate signals generated by different types of sensors.
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Circuit Breaker Analyzers & Timers
CAT Advanced Series
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DV Power circuit breaker analyzer and timer utilizes the latest technological enhancements for safe and fast testing of circuit breakers. The sophisticated design ensures efficient and reliable operations in high-voltage substations and industrial environments.The CAT Advanced series are stand-alone or PC-controlled digital instruments for a circuit breaker testing. The timing channels record closing and an opening of the arcing, resistor, and auxiliary contacts. Also, the main contact channels can measure the resistance value of the pre-insertion resistors (if present in the circuit breaker).With CAT Advanced series instruments, it is possible to record graphs of open and close coil currents. Furthermore, it records displacements of the HV and MV circuit breaker moving parts. Test results can be saved via USB, PC or be printed via 112 mm (4.4 inches) thermal printer (optional accessory) in tabular and graphical form.A circuit breaker test consists of different operational modes and CAT Advanced series supports:Open (O)Close (C)Reclose (O-0,3s-C)Trip free (CO)O-0,3s-COOpen-Close (O-C)Close-Open (C-O)Open-Close-Open (O-C-O)First trip (O)Multiple operations, such as Open-Close and Open-Close-Open, can be initiated by using a predefined delay time or by sensing a breaker’s contact position.The auxiliary inputs are used to monitor dry and wet auxiliary contacts. The six coil control analog channels measure and record coil currents simultaneously (OPEN and CLOSE), up to 35 A AC/DC.The additional six voltage analog channels have four selectable voltage ranges available (±1 V, ±5 V, ±60 V and ±300 V AC/DC).A built-in micro-ohmmeter generates up to 500A true DC ripple-free current with an automatically regulated test ramp that provides performing static and dynamic contact resistance measurement.Three transducer channels provide a measuring displacement of the circuit breaker moving parts, contact wipe, over-travel, rebound, damping time and average velocity. Also, a user can connect either an analog or a digital transducer to these universal channels.
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Product
DIGITAL EARTH TESTER
MTD-20KWe
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The MTD-20KWe digital earth tester allows for the measurement of Earth Resistances and Soil Specific Resistivity, and also the spurious voltages caused by parasitic voltages present in the soil.
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SAFETY TESTERS ( CURRENT LEAKAGE TESTERS )
ST-05
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Safety Tester Model ST-05 is a test set for testing small equipment powered by 120V 60 Hz, from an approved U-ground source. Test also can be run on double-insulated tools an on appliances with two-pin parallel plugs.
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Listed Circuit Breakers
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Mitsubishi Electric Automation, Inc
To meet the demands of the U.S. and Canadian markets, the UL listed MCCB and ELCB products are compliant to UL489 and CSA C22.2 No.5-02 This range of breakers series offers a standard and high performance protection up to 630 amps and are easily installed in the field accesories.
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Circuit Breakers
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As the premier supplier of power system components, Interpower has what you need to complete your projects, including circuit breakers. Interpower has no minimum order requirements, plus same day shipping is available on in-stock Interpower products.





























