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IR4057-50 Insulation Tester

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Product code: IR4057-50

Backorder Now, once ordered your item will dispatch before the 22nd of May 2025, call 1300 737 871 (NZ 0800 737 871 to confirm).

The IR4057-50 is a 5-range, 50 V to 1000 V digital insulation resistance tester with bargraph, and delivers efficient functions and features to help shorten work time associated with field insulation testing.

-5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 milliohms.

-Built in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles.

-Stable & high-speed digital readings, 0.3 second response time for PASS/ FAIL decisions.

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$829.10 AUD + GST
 $912.01 AUD Inc. GST
Comparator function provides PASS/ FAIL decisions at a glance
Compare measured values to pre-set reference values to generate a pass or fail judgment with the Comparator function. (also pair with insulation resistance measurement and low-resistance measurement)
The insulation testers give you pass/ fail results using a beeping sound, LCD light, and indication right on the test lead with remote control switch (option), letting you check for insulation integrity without needing to look at the instrument.
Robust, damage-resistant design
These instruments feature a robust design that can withstand being dropped onto concrete from a height of 1 m. Difficult to damage, this insulation tester is ideal for use in the field.
White LED lighting thats easy to read in dim locations in the field
The scale is lit by a white LED, ensuring that insulation resistance values are easy to read, even when using the instrument in a dim location.

Specifications

- Rated output voltage: 50 V / DC 125 V / DC 250 V / DC 500 V / DC 1000 V DC
- Effective maximum indicated value: 100 milliohms / 250 milliohms / 500 milliohms / 2000 milliohms / 4000 milliohms
- Accuracy: 1st effective measuring range milliohms +/- 2 % rdg. +/- 2 dgt. 0.200 to 10.00 +/- 2 % rdg. +/- 2 dgt. / 0.200 to 25.0 +/- 2 % rdg. +/- 2 dgt. / 0.200 to 50.0 +/- 2 % rdg. +/- 2 dgt. / 0.200 to 500 +/- 2 % rdg. +/- 2 dgt. /0.200 to 1000
- Lower limit resistance: 0.05 milliohms / 0.125 milliohms / 0.25 milliohms / 0.5 milliohms / 1 milliohms
- Overload protection: 600 V AC (10s) / 660 V AC (10s)
- DC voltage range: 4.2 V (0.001 V resolution) to 600 V (1 V resolution), 4 ranges, Accuracy: +/- 1.3% rdg. +/- 4 dgt., Input resistance: 100 kiloohms or higher
- AC voltage range: 420 V (0.1 V resolution) / 600 V (1 V resolution), 2 ranges, 50/60 Hz, Accuracy: +/- 2.3% rdg. +/- 8 dgt., Input resistance: 100 kiloohms or higher, Average rectifier
- Low resistance range: For checking the continuity of ground wiring, 10 ohms (0.01 ohms resolution) to 1000 ohms (1 ohms resolution), 3 ranges, Basic accuracy: +/- 3 % rdg. +/- 2 dgt., testing current 200 mA or more (at 6 ohms or less)
- Display: Semi-transmissive FSTN LCD with back lighting, bar-graph indicator
- Response: time Approx. 0.3 second for PASS/FAIL decision (based on in-house testing)
- Other functions: Indicate milliohms measurement value after a lapse of one minute, Live circuit indicator, Automatic electric discharge, Automatic DC/AC detection, Comparator, Drop proof, Auto power save
- Power supply: LR6 (AA) alkaline batteries x4, Continuous use: 20 hours (based on in-house testing)
- Number of measurements: 1000 times (at 5 s ON, 25 s OFF cycle, insulation measurement of lower limit resistance value to maintain nominal output voltage)
- Dimensions and mass: 159 x 177 x 53 mm, 640 g (including batteries, excluding test leads)
- Accessories: Connection cable L4930 x1, Alligator clip set L4935 x1, Test pin set L4938 x1, Neck strap x1, Instruction manual x1, LR6 (AA) alkaline batteries x4

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