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Current Sensors · Open Loop · Compact Busbar

VTC-S Series

Compact isolated current sensing from 50 A to 500 A.

The VTC-S family is designed for accurate measurement of DC, AC, pulsed and arbitrary-waveform currents while maintaining galvanic isolation between the primary high-power circuit and the secondary electronics. Its compact rectangular aperture supports busbars up to 30.5 × 10.7 mm, while one common mechanical design covers the complete 50 A to 500 A range.

50–500 ANominal current range
Up to ±1000 APrimary measuring range
2.5 kVIsolation voltage
5 µsResponse time
50 kHzBandwidth @ −1 dB
55 gCompact sensor mass
ADISENS VTC-S compact open-loop current sensor
Engineering value

Compact mechanics with strong dynamic performance

VTC-S combines a light mechanical package with a rectangular busbar opening, fast response and low thermal drift for compact power-electronics architectures.

< ±0.5 mV/°C

Thermal drift of offset voltage.

< ±0.05%/°C

Thermal drift of output gain.

50 A/µs

di/dt accurately followed.

0.5% IPN

Linearity error at 25°C.

±1% IPN

Accuracy from 0 to ±IPN.

500 MΩ

Isolation resistance at 500 V.

References & Documents

VTC-S technical characteristics and datasheets

All six validated references are listed below with direct access to their technical datasheets.

Reference Product code Nominal current Measuring range Supply Linearity Accuracy Response Bandwidth Isolation Operating temp. Datasheet
VTC-S-50J4Available on request 12100050031800001 50 A ±150 A ±15 VDC 0.5% IPN ±1% IPN 5 µs 50 kHz 2.5 kV −10 to +80°C Open PDF ↗Available on request
VTC-S-100J4Available on request 12100100031800001 100 A ±300 A ±15 VDC 0.5% IPN ±1% IPN 5 µs 50 kHz 2.5 kV −10 to +80°C Open PDF ↗Available on request
VTC-S-200J4Available on request 12100200031800001 200 A ±600 A ±15 VDC 0.5% IPN ±1% IPN 5 µs 50 kHz 2.5 kV −10 to +80°C Open PDF ↗Available on request
VTC-S-300J4Available on request 12100300031800001 300 A ±900 A ±15 VDC 0.5% IPN ±1% IPN 5 µs 50 kHz 2.5 kV −10 to +80°C Open PDF ↗Available on request
VTC-S-400J4Available on request 12100400031800001 400 A ±1000 A ±15 VDC 0.5% IPN ±1% IPN 5 µs 50 kHz 2.5 kV −10 to +80°C Open PDF ↗Available on request
VTC-S-500J4Available on request 12100500031800001 500 A ±1000 A ±15 VDC 0.5% IPN ±1% IPN 5 µs 50 kHz 2.5 kV −10 to +80°C Open PDF ↗Available on request
Custom VTC-S Need another nominal current or project-specific connection?
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Mechanical integration

Designed for compact rectangular busbars

The mechanical envelope and mounting arrangement are shared across the full VTC-S-xxxJ4 family.

30.5 × 10.7 mmMaximum primary busbar section supported by the aperture.
3 × Ø4.5 mmMounting holes.
0.75 N·mRecommended M4 screw torque.
55 gLightweight sensor design.
Common envelopeShared from 50 A through 500 A.
Single-busbar optimisationBest dynamic performance when the primary opening is effectively filled.
Secondary connection

Standard Molex 4-pole interface

Molex 220410414-pole secondary connector.
Molex 22011042Crimp housing.
Molex 08500113Crimping terminal.
Output polarityVOUT is positive when primary current follows the direction arrow on the product label.
Applications

Best-fit applications for VTC-S

AC Variable-Speed DrivesAccurate current feedback across the full speed range. DC Motor DrivesCurrent measurement in static converters and motor-control systems. Battery-Supplied SystemsCompact isolated current feedback with low power consumption. SMPS & UPSFast current response in high-frequency switching environments. Welding Power SuppliesMeasurement of pulsed and mixed current waveforms. Compact Power ElectronicsRectangular busbar integration where installation space is constrained.
Standards & Compliance

Electrical safety and environmental compliance

IEC 61010-1Electrical-safety framework for measurement and control equipment integration.
EN 50178Electronic equipment for use in power installations.
CEEU conformity information available from ADISENS on request.
RoHS / REACHEnvironmental compliance declarations available on request.
Selection support

Need help selecting the right VTC-S?

Share nominal current, overload current, busbar dimensions, switching frequency and environmental constraints with our technical team.

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Custom engineering

Need another current rating or connection solution?

ADISENS can review project-specific current ratings, electrical interfaces and mechanical adaptations.

Request a Custom VTC-S →