Kewtech 2433R True RMS AC Earth Leakage Clamp Meter 600V AC/DC (between line/neutral) 300V AC/DC (against earth)

Kewtech

£411.00 / £493.20 incl VAT

⚡ 2 Year warranty
⚡ Digital clamp meter for AC leakage measurements
⚡ Accurate true RMS readings of AC current on distorted waveforms
⚡ Designed to resist the effects of magnetic fields, ensuring a wide measurement range
⚡ Teardrop-shaped jaws for ease of use in crowded cable areas/other tight spaces

Available on back-order

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SKU: KEW-2433R Category: Brand:

Description

Kewtech 2433R True RMS AC Earth Leakage Clamp Meter

Product details:

The Kewtech 2433R True RMS Earth Leakage Clamp Meter accurately measures earth leakage current with this dedicated clamp meter from Kewtech.

Suitable for AC current measurements only, the clamp has three ranges: 40mA, 400mA and 400A. A built-in frequency selector switch is included to eliminate the effects of harmonics, ensuring your results are always as accurate as possible.

This clamp is suitable for use with conductors with a maximum diameter of 40mm.

Product Features:

  • Digital clamp meter for AC leakage measurements
  • Accurate true RMS readings of AC current on distorted waveforms
  • Designed to resist the effects of magnetic fields, ensuring a wide measurement range
  • Measure up to 400A
  • Teardrop-shaped jaws for ease of use in crowded cable areas/other tight spaces
  • Data hold function
  • Filtering function removes high frequency generated by equipment such as inverters
  • Peak hold function
  • Auto power-off function
AC A
(50/60Hz)  40/400mA/400A
|±1%rdg±5dgt (40/400mA)
|±1%rdg±5dgt (0 – 300A)
|±2%rdg (300.1 – 399.9A)

AC A
(WIDE)  40/400mA/400A
|±1%rdg±5dgt [50/60Hz],
|±2.5%rdg±10dgt [20Hz – 1kHz] (40/400mA)
|±1%rdg±5dgt [50/60Hz],
|±2.5%rdg±10dgt [40Hz – 1kHz] (0 – 300A)
|±2%rdg [50/60Hz],
|±5%rdg [40Hz – 1kHz] (300.1 – 399.9A)
Frequency Response 20Hz – 1kHz [40Hz – 1kHz:400A]

Maximum  Circuit Voltage

600V AC/DC (between line/neutral) 300V AC/DC (against earth)

Conductor Size

Ø40mm max.

Safety Standard

IEC 61010-1 CAT III 300V Pollution Degree 2 IEC 61010-2-032

Effect of External Stray Magnetic Field

10mA AC approx. in proximity to a 15mm-dia conductor carrying 100A AC

Withstand Voltage

3700V AC for 1 minute

Response Time

Approx. 2 seconds

Power Source

Two R03 or equivalent (DC1.5V) batteries

Dimensions

185(L) × 81(W) × 32(D)mm

Weight

270g approx.

  • Kewtech 2433R Clamp Meter
  • Carrying Case
  • 2 x 1.5V Batteries
  • Instruction Manual

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.

Additional information

Weight500 g

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