RS Components
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Megger LT300 Loop Impedance Tester 2 Wire 550V ±5% CAT IV 300 V LT300 UKAS Calibration

Tillfälligt slut i lager - restorder för leverans 2020-12-10
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6 924,32 kr

(exkl. moms)

8 655,40 kr

(inkl. moms)


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LT300 Loop Tester

The LT300 combines high current-loop testing over a wide range of frequencies and supply voltages with simple operation. This is a HIGH CURRENT ONLY tester, designed for installations where there are no RCDs installed. A two-wire test performs a fast loop impedance measurement at a test current up to 27A, with a resolution of 0.01ohms. Frequency range and operating voltage are wide, allowing for a diverse range of applications up to and including CATIV 550V phase-to-phase. Testing commences automatically as soon as the instrument is connected to the supply. Repeat testing is provided by the TEST button.

High current loop tester
Simple auto start operation
16Hz to 400Hz frequency range
Up to CATIV 300V phase-to-earth (550V phase-to-phase) applications
Optional two-wire lead set available separately, RS stock no. 537-7282


RS is an authorised Megger distributor. Purchased though RS this product is eligible for the Megger extended 3 Year warranty

Supplied with

durable hard carry case; BS1363 mains socket test lead; 8 x AA alkaline batteries; instructions.

Loop Impedance Test Type2 Wire
Maximum Voltage Measurement550V
Best Loop Test Accuracy±5%
Resolution0.1 Ω
Safety CategoryCAT IV 300 V
Display TypeLCD
Battery TypeAA
Power SourceBattery
Dimensions203 x 148 x 78mm
Safety Category LevelCAT IV
Maximum Operating Temperature+60°C
Model Number pLT300
Plug TypeType G - British 3-pin
Minimum Operating Temperature-10°C
Maximum Test Frequency400Hz
Minimum Test Frequency16Hz
Safety Category Voltage300V