DC-CT® Current TransducersThe best AC⚡DC current sensor available today!

Name: DC-CT® Current Transducers
Brand: Dewesoft d.o.o.
SKU: eQpVPHk1Roq9u9WUiq-cyw
Availability: InStock
Rating: 4.758620689655173 (29 reviews)

Dewesoft DC-CT® current transducers provide the advantages of a zero-flux current transducer but with lower power consumption and a more compact design. With a broad measurement range, high bandwidth, excellent linearity, high accuracy, and minimal temperature drift, the DC-CT® stands out as one of the top current sensors available in the market today.

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DC current

AC current

Isolation CAT II 1000 V

Isolation CAT III 600 V

Shock rating 100g

Highlights

AC⚡DC current measurement

The DC-CT® current transducer is versatile, capable of measuring both AC (alternating current) and DC (direct current). DC-CT with 1000A range is designed to measure up to 1000 A DC and up to 700 A AC rms.

No compromise

Experience uncompromised lab-grade measurement accuracy housed within a remarkably rugged and compact chassis. It is engineered to deliver flawless, reliable performance even in the most demanding and harsh environments.

Thermal stability

Lower power consumption means less selfheating, resulting in exceptional temperature stability.

High bandwidth

The gapless core design ensures a flat frequency response from DC up to 1 MHz at 0.5 dB for 1000A 22mm model, making it ideal for capturing high frequency switching noise in inverters.

Small size

DC-CT® current sensors are really compact. The entire sensor is packed into one of the smallest form-factors available in the market today. This makes it easy to fint and install it in tight places.

Low power consumption

Thanks to its innovative design, the DC-CT® consumes up to ten times less energy than traditional zero-flux units, enabling direct DAQ connections, simplified wiring, and significantly reduced heat dissipation.

Compatible pinout

Enjoy a frictionless upgrade. Our standard DB9 connector features a LEM/Danisense compatible pinout, making the Dewesoft DC-CT a seamless, drop-in replacement for older zero-flux sensors.

1000 V isolation

DC-CT® current sensors provide effective galvanic isolation between the primary and secondary components, meeting the stringent standards of IEC 61010-1 for CAT II 1000 V and CAT III 600 V. This ensures a high level of safety and reliability, making them suitable for a wide range of applications.

Fail-safe design

Unlike traditional zero-flux sensors that destroy their cores if unpowered during high current, the DC-CT is built fail-safe. It safely survives unpowered high-current flows, eliminating a major risk in fleet testing.

TEDS support

Both the sensor and the burden resistor come with built-in TEDS compatibility, ensuring a plug-and-play experience. Connecting the current transducer to the DAQ device initiates automatic sensor recognition, and settings are configured seamlessly.

Dewesoft quality and 7-year warranty

Enjoy our industry-leading 7-year warranty. Our data acquisition systems are made in Europe, utilizing only the highest build quality standards. We offer free and customer-focused technical support. Your investment into the Dewesoft solutions is protected for years ahead.

Revolutionary performance. Guaranteed for 7 years.

For decades, test engineers faced a frustrating compromise: choose compact Hall Effect sensors and endure temperature drift and noise, or use accurate Zero-Flux transducers that are bulky, power-hungry, and expensive. With the DC-CT® series, that trade-off is finally history.

By leveraging advanced ISOTEL technology and the patented Platise Flux Sensor (PFS), we deliver the best of both worlds, fully backed by Dewesoft’s guarantees:

Zero-Flux Accuracy: Achieve high-end linearity and exceptional bandwidth without the massive power draw, high costs, or complex installation.
Compact Size: We packed this elite performance into a form factor smaller than many standard current probes, perfect for tight environments.
European Build Quality: Manufactured to the highest industry standards to ensure absolute reliability in the field.
7-Year Warranty: Your investment is completely protected. Enjoy long-term peace of mind alongside our free, customer-focused technical support.

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DC-CT® current measurement technology overview

The patented Platiše Flux Sensor (PFS) fundamentally changes DC current measurement. While conventional fluxgate sensors rely on bulky multi-core setups, the PFS utilizes an innovative closed-loop, single-core design. It operates by guiding a feedback control system to maintain a perfect zero-flux equilibrium in the core.

This elegant simplification delivers high precision while remaining cost-effective. The DC-CT® achieves an exceptional bandwidth of -0.5 dB at 1 MHz and target accuracy from 0.1% down to 0.01%. Enjoy the elite performance of a zero-flux sensor—including Class B+ compliant residual current sensing capabilities—with significantly lower power consumption, reduced noise, and a dramatically smaller footprint.

Comparison to other current sensing technologies

	Type	Isolation	Current range	AC bandwidth	Linearity	Accuracy	Temperature drift	Power consumption
DC-CT®	DC/AC	Yes	High	Excellent	Excellent	Very High	Very Low	Medium
Flux-gate	DC/AC	Yes	High	High	Excellent	Excellent	Low	High
Hall	DC/AC	Yes	High	Medium	Medium	Medium	High	Low-Med
Shunt	DC/AC	No	Medium	Medium	Good	High	Medium	High
Rogowsky	AC	Yes	High	Excellent	Good	Medium	Low	Low
CT	AC	Yes	High	Medium	Medium	Medium	Low	Low

Dewesoft's DC-CT current sensing technology

Available models of DC-CT® current sensors

The Dewesoft DC-CT® series is designed with complete flexibility in mind. We now offer four distinct models to cover everything from compact precision testing to heavy-duty EV applications. Select the ideal combination to match your measurement environment:

Two Aperture Sizes: Choose the compact 22 mm inner diameter for standard test cables, or the 45 mm aperture to easily accommodate thick, high-voltage busbars.
Two Connectivity Options: Opt for the industry-standard DB9 connector for typical laboratory work, or select the rugged LEMO connector for enhanced durability and secure locking in harsh conditions.

Model name	Range (DC)	Aperture	Connector
DC-CT-1000I-S22DA	1000 A	22 mm	DSUB-9
DC-CT-1000I-S22LA	1000 A	22 mm	LEMO
DC-CT-1000I-S45DA	1000 A	45 mm	DSUB-9
DC-CT-1000I-S45LA	1000 A	45 mm	LEMO

DC-CT-1000I-S22DA current transducer front and back sides

Small form factor, perfect for placements in tight spots

The DC-CT-1000I-S22DA current transducer stands out by offering an impressive continuous measurement range of up to 1000 amperes, making it a reliable and versatile choice for various applications.

What sets this transducer apart is not only its high performance but also its compact design, which ranks it among the smallest form factors available in the market. Its inner diameter measures a mere 22 mm, contributing to its sleek and space-efficient profile.

The compact form factor is made possible by the transducer's efficient power consumption, ensuring optimal functionality while minimizing its overall size. This combination of advanced measurement capabilities, small form factor, and energy efficiency makes the DC-CT-1000I-S22DA an exceptional solution for precise and unobtrusive current measurements in diverse settings.

DC CT sensors provide the flexibility of either flat or vertical panel mounting. With just four M4 screws, these sensors can be easily mounted either in a vertical or horizontal orientation, allowing for versatile installation options to suit specific requirements.

Seamless integration

The DC-CT current transducers are characterized by their low power consumption and efficiency in energy usage. With a single SIRIUSi-PWR-MCTS2 power supply unit we can effortlessly power up to four DC-CT sensors without any limitations. This not only underscores the transducers' economic power requirements but also highlights the seamless integration capabilities facilitated by the power supply unit.

The signals from these DC-CT sensors are channeled through the SIRIUSi-MCTS2 slice into any low-voltage signal conditioning unit such as SIRIUS LV or SIRIUS STG.

Built for demanding applications

DC-CT current transducers are ideal for a wide range of current measurement applications, especially those that demand precise, high-bandwidth sensors with low angular shift. This versatility encompasses various scenarios, including:

E-Mobility Measurements: Covering everything from quiescent DC currents to the analysis of higher harmonics of PWM switching frequencies, which may extend into the MHz range.
Motor and Inverter Testing: The DC-CT transducer stands out as an excellent choice for current sensing applications, especially in the rigorous testing environments of motors and inverters. With its impressive high bandwidth and minimal angular shift, this transducer proves to be a reliable and efficient solution, meeting the demands of the most challenging motor and inverter testing scenarios including efficiency testing.
Power Quality Measurements: Particularly useful in the examination of power quality in renewable energy sources or battery storage systems.
High-Power Applications: Well-suited for demanding environments like railway systems, as well as power transmission and distribution grids.
Other Applications: Serving as a valuable feedback element in precision power supplies or calibration units, contributing to their overall accuracy and performance.

In essence, DC-CT current transducers offer a comprehensive solution for applications where precision, high bandwidth, and minimal angular shift are crucial, spanning diverse fields such as e-mobility, power quality analysis, high-power systems, and more.

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