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Pintech PT740-1A AC/DC current probe, dark grey clamp body with BNC cable and jaw open to 30mm

Pintech

Pintech PT740-1A AC/DC Current Probe 400A 150kHz BNC

SKU CH-8BZ6-4DY5Q MPN PT740-1A

Measures AC and DC current up to 400 A with 150 kHz bandwidth and BNC oscilloscope output

  • Size/Dimensions224?97?44mm
  • Selling UnitEach
  • TypeElectrical Testing & Measuring
  • Accuracy±1.5%+5mV
  • Standards/CertificationsCE
  • Measures AC and DC currents up to 400 A with 150 kHz bandwidth
  • ±1.5 % accuracy plus 5 mV ensures reliable readings
  • BNC output connects directly to any oscilloscope
  • Two selectable ranges cover 0.2 A to 40 A and 40 A to 400 A
  • Jaw accepts 30 mm single cable or dual conductors up to 24 mm

AC/DC Current Probe for Oscilloscope Users

The Pintech PT740-1A is a new AC/DC current probe built for oscilloscope measurements up to 400 A. It connects via a BNC cable and offers two selectable ranges for peak and DC currents from 0.2 A to 40 A and 40 A to 400 A. The probe suits engineers and technicians who need to capture both AC and DC waveforms on a scope. It is not for users who require a handheld multimeter display or logging without an oscilloscope.

Sustained Load Behaviour at 150 kHz Bandwidth

The probe maintains its ±1.5 % plus 5 mV accuracy across the full DC to 150 kHz bandwidth during continuous operation. Insert impedance stays low at 0.39 mΩ at 50 Hz and 58 mΩ at 1 kHz, minimising circuit loading. Noise is specified at 1 mV rms. Overload and battery indicators alert the operator before measurement integrity degrades. It is not for applications demanding bandwidth beyond 150 kHz or currents above 400 A peak.

Installation Practicalities and Common Issues

The 2 m BNC lead plugs directly into any oscilloscope with a 1 MΩ and 100 pF input. Jaw opening accepts a single 30 mm cable or two 24 mm cables and 31.5 × 10 mm busbars. A DC zero adjustment corrects offset before each session. The probe ships with an external adapter; a battery-powered version is available on request but batteries are not included. Automatic shutdown after 10 minutes saves power but can interrupt long captures if unnoticed.

Highlights

  • Measures AC and DC currents up to 400 A with 150 kHz bandwidth
  • ±1.5 % accuracy plus 5 mV ensures reliable readings
  • BNC output connects directly to any oscilloscope
  • Two selectable ranges cover 0.2 A to 40 A and 40 A to 400 A
  • Jaw accepts 30 mm single cable or dual conductors up to 24 mm

Specifications

BrandPINTECH
ModelPT740-1A
Size/Dimensions224?97?44mm
Selling UnitEach
TypeElectrical Testing & Measuring
Accuracy±1.5%+5mV
Standards/CertificationsCE

Questions about this item

How much heat or noise does the PT740-1A generate during all-day use?

The probe has no fan or active cooling; it produces no audible noise and its insert impedance stays at 0.39 mΩ at 50 Hz and 58 mΩ at 1 kHz, so self-heating remains negligible during continuous operation.

What must I already own for the PT740-1A to work?

You need an oscilloscope with a 1 MΩ / 100 pF BNC input and a 9 V battery (not supplied) if you prefer battery power over the included adapter.

Will the PT740-1A clamp around the 30 mm cables I already use?

Yes — the jaw accepts a single conductor up to 30 mm diameter, two cables up to 24 mm each, or a 31.5 × 10 mm busbar, so your existing 30 mm cables fit the 400 A range.

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