Current Preamplifiers
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Product
Current Measuring Instruments
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The testo 755 current/voltage testers are fast and easy to use, especially when you are testing many circuits. The convenient open-jaw current tester automatically turns on when voltage exceeds 6V. It then auto-selects the correct parameters and range for your test. These rugged testers are suitable for virtually all your daily electrical measuring tasks.
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Product
Primary Current Injection Test Set
T 3000
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T 3000 is a primary current injection testing system designed to perform primary tests requested in substations commissioning. It allows to perform different tests and measurements on current transformers, voltage transformers, power transformers, protection relays, energy meters and transducers
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Product
High-Voltage Differential Probe, 70 MHz
N2891A
High Current Probe
Use the N2891A 70-MHz high-voltage differential probe to make safe and accurate floating measurements with an oscilloscope. The N2891A differential probe allows conventional earth-grounded Keysight oscilloscopes to be used for floating signal measurements of up to ±7000 V of differential and common mode voltage.
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Product
Leakage Current Clamp Tester with Bluetooth
M-1141XR
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MULTI MEASURING INSTRUMENTS Co., Ltd.
・Waveform display is possible with connection to a smartphone・Measurement data is to be accumulated in the server, and it is available for graph and CSV output・Auto 5-range : AC 30mA / 300mA / 3A / 30A / 300A・CT inside diameter : φ40mm・Minimum resolution : 0.01mA・Maximum value hold / Data hold function available・Band path filter with center frequency (fo = 55Hz)・Compliant with EN 61010, CAT-III 1000V / CAT-IV 600V・With backlight
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Product
Split type AC Current Transformer
CTS-300
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*5A output for metering application.*Short circuit switch for secondary output is provided for safe operation.*High accurate transformer for the application of first class meter.*Easy to install by metal fitting.
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Product
Through Hole Type AC Current Sensor
CTF-600B
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*For AC current and power measurements.*Suitable for current measurements of main cable.*Measuring range:AC 1A~600A.
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Product
Current Transformer
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OutputDC 10VLinearityAs graph aboveApplied VoltageAC 2000V, 1min (between aperture and terminals)ImpendanceDC 500V, over 100M (between aperture and terminals)Fire Retardant Level94V0Output Terminals2.54 mm pinAnti-vibration50 Hz 5G
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Product
Digital Ior Leakage Current Clamp Tester
MCL-400IR+
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MULTI MEASURING INSTRUMENTS Co., Ltd.
・About Ior Leakage CurrentRecently, the leakage current clamp meter is widely used for insulation control of low voltage circuit as the supplementary method of the insulation resistance measurement. The control of leakage current has the advantages to enable the prediction of insulation condition in the electrical power line without having to shut off the power. The leakage current (Io) includes the capacitive leakage current (Ioc)originated in the capacitance and the resistive leakage current (Ior) originated in the insulation resistance each related to the ground. It is considered that the measurement of resistive leakage current (Ior) is the very useful and effective method for the insulation control of low voltage circuit. However, it was difficult to measure the resistive leakage current (Ior)with traditional leakage current clamp meter. MCL-400IR new digital clamp tester enabled the measurements of the resistive leakage current (Ior)without voltage input(phase detection).
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Product
LCR Meter For High Current Test System
5400L Series
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WK5400 is the test system controller. The DC Bias Current source WK3265B machines are connected to the Bias Adapter of the 5400 directly with a dedicated wiring system. This makes it is easier to set up and maintain the system.
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Product
Capacitors - Power - Heavy Current (ESTA)
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Vishay ESTA is one of the few manufacturers to offer a complete range of power capacitors. These cost-effective devices for harmonic control, energy savings, and voltage stabilization are highly reliable and environmentally safe, and can be used under the most rugged conditions. Vishay ESTA power capacitors address a wide range of energy-generation applications. Their “green” applications include energy generation in on- and off-shore wind turbines and solar power plants.
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Product
Current Transformer Tester
CTT
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The CTT is designed to test the current transformer ratio, Phase shift, Polarity, Excitation, Saturation, Winding resistance and Insulation resistance using the voltage method in compliance with ANSI/IEEE C57.13.1 and IEC 60044-1 standards, where voltage is applied to the secondary X terminals of the current transformer.
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Product
Air Core Current Limiting Reactors
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Current Limiting Reactor (CLR) is one of the most effective short circuit current limiting devices. It reduces stresses on busses, insulators, circuit breakers and other high voltage devices. Use of CLR is the most practical and economical approach at current limiting.
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Product
Current / Voltage input Panel meter with output options
DM3420
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The DM3420 panel meter accepts Voltage and Current process signals and displays the process value on a high efficiency daylight readable LED display. A built in transmitter power supply is also provided.
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Product
DC Resistance and Current Measurement System
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DC Resistance and Current Measurement System including: 6622A Series Bridge, 6634A Temperature Stabilized Resistance Standards, 6664C Scanner(s), world’s most precise and stable 6623A Precision Current Source/Range Extender, Wired Equipment Rack, and Bridgeworks Software.
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Product
8-Ch SPST 20A-250VAC High Current
YAV90087
Relay
8 power relays Switching 20A 250Vac PNP Outputs para control or YAV90304 control CAN Control (or Ethernet with Ethernet to CAN Gateway) Drivers dll & VIs available
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Product
High Current SMU
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Source and Measurement Units (SMUs) are devices that generate voltages or currents and can measure them simultaneously using the integrated measurement units (VMU, CMU).High current SMUs operate as a regulated power source and are able to generate very high output currents as pulses.
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Integrated Current Sensors
GO series
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*Standard package and small footprint*Cost effective*A perfect compromise for small drives, robots, solar inverters, e-bikes etc.
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Product
High Current Transformers
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High Current Transformer is designed to elevate and check the temperature of the conductors at high current levels, in order to simulate the current loading conditions found in electrical circuits. High Current Transformer is designed as an open type transformer that uses the test object as its secondary coil or has 1 or 2-turn self secondary winding. The conductors cores' temperature depends on the short-circuit high current caused by the test object. According to the current going through the test object, the test temperature of the conductor will change. The loop temperature is measured by a thermocouple probe which is directly connected to conductor.
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Product
DC Bias Current Source
FD1772B
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• Constant DC output 0-6A• Auto or manual current sweep output• 5 current range output• Output voltage range: 0-11.5V• Current accuracy ± (1%reading + 2digit)
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Product
Clamp type AC Current Sensor/for Load Current Measurements(CT Series)
CT-33S
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Ultra compact size*AC 1A~200A*Current measurements of feeder
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Product
Current Booster
BUX
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The current boosters allow performing tests up to 2000A, 3000A and 5000A. The option is made of a module, which incorporates a power transformer, which generates a low-voltage, high current output and a metering CT, which measures the output current and sends the metering to eKAM.
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Product
Brute High Current Probe
P4301-2F
High Current Probe
Current Rating (Amps): 50Current Rating Remark: 40 Amps for BeCu plungersAverage Probe Resistance (mOhm): 5Test Center (mil): 300Test Center (mm): 7.62Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 167Recommended Travel (mm): 4.24Mechanical Life (no of cyles): 1,000,000Overall Length (mil): 1,750Overall Length (mm): 44.45
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Product
T3RC Rogowski Coil Current Probes
T3RC Series
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Teledyne Test Tools Rogowski Current probes offer a broad range of products covering a wide frequency span and current measurement ranges for maximum application coverage whilst being easy to use in difficult to reach parts of the circuit.
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Product
Split type Pulse Current Sensor
CTF-05
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MULTI MEASURING INSTRUMENTS Co., Ltd.
High accurate AC pulse current sensor for power demand meter.
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Product
High Impedance Preamplifier
1671
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The Model 1671 is a single ended low noise field effect transistor
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Product
Fuse Buddy Current Loop
307M/308B
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*Just clamp your current probe over the loop to access the amperage draw through a fused circuit. *Easy testing access, plugs right into fuse socket, no more hand made adapters. *Testing range 0-30 Amps - Do Not Exceed 30 Amps
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Clamp type AC Current Sensor/with DC Voltage Output
ACT-50H
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*For current measurements of the control board*AC 1A~50A*DC 5V full scale output
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Product
AC / DC Current Probe, 100 MHz, 30 Arms
N2783B
Oscilloscope Probe
The N2783B current probe is an accurate and reliable solution for measuring AC and DC currents. Using a hybrid technology that includes a Hall effect sensor and an AC current transformer, the probe provides accurate measurement of DC or AC currents up to 30 Arms continuous.
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Product
Current Pulsers and Laser Diode Drivers (Pulsed Current)
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These instruments generate current pulses whose amplitude is largely independent of the load voltage. This makes them ideal for pulsing device whose voltage may vary with time (for instance, the voltage drop of laser diodes may vary with temperature, or explosive squibs which change impedance during ignition). This voltage independence is a trade-off with speed. If faster rise times are required, consider using pulsed voltage instruments instead.
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Product
Current Transformers
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Contrel Elettronica s.r.l. Company
We can supply current transformers (measure transformers, protection transformers and double ratio transformers, with analog output) with the following accuracy classes: 0.1, 0.2s, 0.5s; 1; 3. A wide range of combinations is available in our standard range with specific versions available upon request (other ratios, specific frequency, class or load). They are equipped with sealable terminal covers as standard.





























