Megger LTW335 Non-Tripping Loop Impedance Tester

Megger LTW335 Non-Tripping Loop Impedance Tester — Storage & Downloading

The Megger LTW335 is the most capable model in the LTW range, adding on-board test-result storage and downloading to maxZ display and (R1+R2) calculation. Its low-current no-trip test measures loop impedance without tripping RCD-protected circuits, while a high-current mode gives precise low-impedance readings across a wide 50–440 V range — and stored results streamline certification and reporting, all in a rugged CAT IV handheld to EN 61557.

Key Features

• Non-tripping loop testing — a nominal 15 mA test current measures loop impedance on RCD-protected circuits without tripping.
• High-current test — a nominal 4 A test delivers accurate low-impedance loop results where tripping is not a concern.
• Result storage & downloading — stores test results on the instrument and downloads them for certification and reporting.
• maxZ display & (R1+R2) — shows maximum permitted loop impedance and calculates conductor resistance for fast pass/fail decisions.
• Wide measurement range — displays loop impedance from 0.01 Ω to 2000 Ω at 0.01 Ω resolution, ±5% ±0.03 Ω at 230 V.
• Prospective fault current — calculates PFC up to 20 kA for protective-device verification.
• Wide voltage range — measures supply voltage over 50–440 V (±2% ±1 V).
• CAT IV 300 V & IP54 — rugged, weatherproof build; 8 × AA cells; 203 × 148 × 78 mm, ~1000 g; −10 °C to +50 °C.

Applications

The LTW335 is ideal for contractors and test engineers who need earth-fault loop impedance, (R1+R2) and prospective fault current measurement with full record-keeping — on domestic, commercial and industrial installations, including RCD-protected supplies where non-tripping measurement is essential.

What’s in the Box

• Megger LTW335 non-tripping loop impedance tester
• Test lead set
• 8 × AA batteries (fitted)
• Calibration certificate and user guide

Why Buy from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) is your trusted supplier of genuine Megger test and measurement equipment in the UAE. We offer competitive pricing, fast local delivery across Dubai, Abu Dhabi and the wider UAE, and knowledgeable after-sales support. Contact us on WhatsApp for the latest price and availability.

Download the Megger LTW335 datasheet (PDF).