Order &
Advice Line
Teesside 01642 265426 Manchester 0161 6740168
London 0203 8295781 Birmingham 0121 7969657
International +44 203 8295780    

Megger LTW315 Loop Impedance Tester

Only 3 In Stock
Reward Points: 718 [?]

  • Entry-level loop tester

  • Suitable for 110V to 280V applications

  • Non-tripping loop testing

Save £171.00
£430.80 (Inc. VAT)

Login / Sign Up for Member Discount.
Why do I need a calibration?

Ex Demo Available Ex Demo Available
Found it Cheaper? Found it Cheaper? Price Match
Need Help? Need Help? Contact Us

Megger LTW315 Earth Loop Tester kit

Click to enlarge
  • Description

Megger LTW315 Loop Impedance Tester Details

Megger's LTW315 is a two-wire earth loop tester that directly measure loop impedance of live electrical circuits without the need to disconnect.

Portable, reliable and robust enough to be used in demanding environments, the LTW315 can perform loop testing on phase to earth, phase to neutral and phase-to-phase. It's also guaranteed not to trip RCDs at a working current of more than 30mA thanks to its built-in non-trip loop testing function and suitable for use with 3 phase and single phase equipment.

To ensure accurate results are always generated the LTW315 users advanced noise detection to continously monitor the supply and filters out the effects of electrical noise (which can cause incorrect results if left unchecked). PFC can also be displayed on the instrument up to 20kA.

Megger LTW315 Loop Impedance Tester Key Features

  • 2-wire, non-trip loop testing
  • High current mode for fast testing
  • Suitable for use in 110V to 280V applications
  • 20kA PFC range
  • 0.01Ω resolution
  • Automatic noise detection and filtering
  • Automatic starting of loop testing
  • Voltage and frequency measurements
  • Backlit display for use in poor lighting conditions
  • Built-in foldaway front cover
  • IP54 weaterproof casing
  • Suitable for use with rechargeable batteries

What's Included?

  • Megger LTW315 Earth Loop Tester
  • BS1363 to 3 x 4mm Socket Leadset
  • 2 Wire Leadset with Croc Clips
  • Shuko Plug Test Lead – EU-SC
  • AU/NZ Plug Test Lead – EU-AU
  • Hard Carry Case
  • User CD
Questions?Do you have a question about this product? Call our customer service team on 01642 631685.
  • Technical Specs

Megger LTW315 Technical Specifications

General Accuracy
All accuracy statements are based on:  
Ambient Temperature 23° ±2°C
Nominal Voltage Source 230V a.c ±1%
Voltage Measurements
(ac only) 50V to 440V
Accuracy ±2% ±1V
Frequency Measurements
Range  25Hz to 99.99Hz 
Accuracy ±0.1Hz
 A warning will be shown if applied voltage exceeds 440V. 
Damage will occur if applied voltage exceeds 600V rms
Loop Testing Accuracy
±5% ±0.03Ω @230V a.c
±10% ±0.03Ω @100V a.c and 280V
No Trip Loop and High Current Loop Test
Source Voltage  100V to 280V (49Hz to 50.1Hz) 
Display Range 0.01 to 2000Ω
Accuracy ±5% ± 0.03Ω
No Trip Loop Test Nominal Current  15ma (at nominal 230V a.c supply) 
High Current Loop Test 4A (at nominal 230V a.c supply)
Operational Range 0.30 to 1000Ω
Prospective Fault Current (PFC)
Prospective Fault Current  =Measured Source Voltage/Loop Resistance 
Maximum Range No Trip Mode: 20KA
Accuracy is derived from loop test and voltage measurement

IEC 61010
Designed to IEC61010-1
Designed for 300 volts to Earth Category IV
with phase to phase voltages to 440V.
Fuse protected to 600 volts rms AC


 Complies with the following parts of EN61577: 
Electrical Safety in Low Voltage Systems up to
1000V ac and 1500V dc - Equipment for testing,
measuring or monitoring of protective measures:
Part 1: General Requirements
Part 3 - Loop Resistance

E.M.C In accordance with IEC61326-1
Power Supply
Battery 8 x 1.5V Cells IEC LR6 Type (AA Alkaline)
Rechargeable 8 x 1.2V NiCd or NIMH Cells
Battery Life 2000 consecutive tests
Weight 1000g ±10% excluding test leads
Dimensions 203 x 148 x 78mm
Questions?Do you have a question about this product? Call our customer service team on 01642 631685.
  • Reviews

We'd really appreciate it if you'd review this product

Write Your Own Review for Megger LTW315 Loop Impedance Tester

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars

  • Related Items