Megger LT300-EN-BS Loop Tester

£599.94
Megger LT300 Loop Tester
Voltage Measurement Range 0V to 550V (400V @ 16Hz)
Voltage Accuracy ±5% ± 2V
 Loop Test Operating Frequencies  16Hz - 15Hz to 18Hz, 29Hz to 337Hz
50/60Hz - 40Hz to 70Hz, 125Hz, 100Hz to 142Hz
400Hz - 260Hz to 498Hz
Test Currents 550V: 20Ω - 27A, 200Ω - 2.7A
230V: 12Ω - 12A, 200Ω - 1.2A
115V: 20Ω - 6A, 200Ω - 0.6A
50V: 20Ω - 3A, 200Ω - 0.3A
Loop Test Accuracy 0 to 19.99Ω (20Ω range) - ±5% ±0.03Ω
0 to 199.9Ω (200Ω range) - ±5% ± 0.5Ω
Operating Temperature -10 to 60°C
Storage Temperature -25 to 70°C
Humidity 90% RH @ 40°C
Maximum Altitude 2000m
Dust and Water IP54
Battery 8 x AA (LR6) Alkaline or NiMH Rechargable Cells
Safety Meets the requirements of IEC61010-1 300V CAT IV
Phase to Earth or 550V Phase to Phase (400V@16Hz) 
EN61557 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
Montioring of Protective Measures:
Part 1 - General Requirements
Part 3 - Loop Resistance
EMC In accordance with IEC61326-1
Weight 980gms (2.6lb)
Dimensions 203 x 148 x 78mm (8 x 5.8 x 3in)

Description

Megger LT300 Earth Loop Tester


This version of the Megger LT300 Earth Loop Tester ships as standard with a set of fused leads and clips. There are also two other models of this tester available that ship with a mains plug and non-fused leads.

Designed to take the difficulty out of carrying out high current loop testing procedures, the Megger LT300 is incredibly simple to use, suitable for use over a wide range of frequencies and uses simple and fast two wire operation to generate measurements.

When connected to the supply, the Megger LT300 will automatically indicate the supply frequency, setting to the measured supply frequency of 16Hz, 50/60Hz or 400Hz. Once calculated, testing will commence automatically. Two measurement ranges are included: 20Ω with resolution to 0.01Ω and 200Ω with resolution to 0.1Ω.

Suitable for both single and 3 phase testing scenarios, the LT300 will also indicate when operational supply range of over 330V is detected, ensuring that the accidental phase to phase connections on 230V systems do not take place.

The LT300 is ideal for use in a wide variety of different testing scenarios due to its special armoured casing that surrounds the instrument. A built-in cover protects the interface of the tester when not in use, while IP54 weatherproof rating provides excellent protection in adverse conditions.

 

Megger LT300 Comes Supplied With:

  • Megger LT300 Earth Loop Tester
  • Fused Leads & Clips (Dependant on Model)
  • Mains Plug Test Lead (Optional)
  • Standard Test Leads and Clips (Optional)
  • Hard Carrying Case
  • Manufacturer's Certificate
 

Megger LT300 Earth Loop Tester Key Features

  • High current loop testing instrument
  • Portable design made for use out in the field
  • Heavy duty armoured casing with protective cover
  • Suitable for both single and 3 phase testing
  • 16Hz to 400Hz operation
  • CAT IV 300V rated
  • Two loop impedance ranges of 20Ω and 200Ω
  • Protected against accidental phase-to-phase connections

Features & Specification

More Information
Key Features Fast loop test, 0.01 ohm resolution, High Accuracy
Product Stock Status Next Day Delivery (subject to availability)
Manufacturer Megger
Short Description
Megger LT300 Loop Tester
Voltage Measurement Range 0V to 550V (400V @ 16Hz)
Voltage Accuracy ±5% ± 2V
 Loop Test Operating Frequencies  16Hz - 15Hz to 18Hz, 29Hz to 337Hz
50/60Hz - 40Hz to 70Hz, 125Hz, 100Hz to 142Hz
400Hz - 260Hz to 498Hz
Test Currents 550V: 20Ω - 27A, 200Ω - 2.7A
230V: 12Ω - 12A, 200Ω - 1.2A
115V: 20Ω - 6A, 200Ω - 0.6A
50V: 20Ω - 3A, 200Ω - 0.3A
Loop Test Accuracy 0 to 19.99Ω (20Ω range) - ±5% ±0.03Ω
0 to 199.9Ω (200Ω range) - ±5% ± 0.5Ω
Operating Temperature -10 to 60°C
Storage Temperature -25 to 70°C
Humidity 90% RH @ 40°C
Maximum Altitude 2000m
Dust and Water IP54
Battery 8 x AA (LR6) Alkaline or NiMH Rechargable Cells
Safety Meets the requirements of IEC61010-1 300V CAT IV
Phase to Earth or 550V Phase to Phase (400V@16Hz) 
EN61557 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
Montioring of Protective Measures:
Part 1 - General Requirements
Part 3 - Loop Resistance
EMC In accordance with IEC61326-1
Weight 980gms (2.6lb)
Dimensions 203 x 148 x 78mm (8 x 5.8 x 3in)

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT £4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 2:00pm £7.75
Saturday ANYTIME Delivery - Order by 2:00pm £9.95
 

 

 

 

 

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export 

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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