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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

  • Measurement accuracy±1.5%+5mV
  • Certifications and standardsCE
  • Size or dimensions224?97?44 mm
  • Sold asEach
  • Product typeElectrical Testing & Measuring
  • 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.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $556.99
Pricier than about 90% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand namePINTECH
Model namePT740-1A
Product typeElectrical Testing & Measuring
Performance
Measurement accuracy±1.5%+5mV
Size & build
Size or dimensions224?97?44 mm
Environment & compliance
Certifications and standardsCE

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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