Is the KEW 4300 safe for field use?

Yes, the CAT III 300V rating ensures it can be safely used in electrical distribution systems and grounding applications. However, it has an IP40 rating, meaning it is not fully protected against water or heavy dust exposure—making it more suitable for indoor or controlled outdoor environments.

What power source does the KEW 4300 use?

The KEW 4300 operates on 2 x AA (1.5V) batteries, providing portability and long battery life for field use.

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Kyoritsu KEW 4300 Earth Tester

Name: Buy Kyoritsu KEW 4300 Earth Tester
Brand: Kyoritsu
SKU: 3956
Price: 1007 AED
Availability: InStock
Rating: 5.00 (2 reviews)

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Short Description:

Kyoritsu Earth Insulation Testers KEW 4300

200/2000Ω (2 ranges): auto-ranging.
Warning buzzer triggered at 100Ω or less.
LED lights up when a large earth voltage is detected.
Live circuit warning when 30V or higher voltage is detected. (KEW 4300 detects voltage even when measuring resistances.)
LED light for illuminating measurement points. (It turns on/off automatically in relation to the ambient brightness.)
Small test current (max 2mA) not triggering RCD.

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SKU: 3956

Brand:Kyoritsu

Original price was: AED 1,100.Current price is: AED 1,007. (excl.VAT)

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Description

Kyoritsu Earth Testers KEW 4300

The new KEW 4300 is a simplified earth resistance tester (based on a 2-pole approach) that may be used for a variety of distribution lines and electrical appliances, as well as measuring AC/DC voltage. (As with AC voltages, accurate RMS values are available.)

kyoritsu kew 4300 Features

• 200/2000Ω (2 ranges): auto-ranging.
• Warning buzzer triggered at 100Ω or less.
• LED lights up when a large earth voltage is detected.
• Live circuit warning when 30V or higher voltage is detected. (KEW 4300 detects voltage even when measuring resistances.)
• LED light for illuminating measurement points.
(It turns on/off automatically in relation to the ambient brightness.)
• Small test current (max 2mA) not triggering RCD

Kyoritsu Earth Testers KEW 4300 Kit

KEW4300 simplified earth testers manual and datasheet, It won’t matter much to those who know how to use an earth tester, but new users can have a hard time. However, most of it is self-explanatory and you also have the online manual to refer to if you get stuck.

Kyoritsu Earth Testers KEW 4300 Manual

You can check our other products like Kyoritsu Earth Testers MODEL 4102A, Kyoritsu Earth Testers KEW 4105DL-H, Kyoritsu Earth Testers KEW 4105A, and Kyoritsu Earth Testers KEW 4300 on our website.

Working procedure of Kyoritsu Earth Testers KEW 4300

manual

datasheet

specifications

Specification	Details
Earth Resistance Ranges	200.0Ω / 2000Ω (Auto-ranging) ±3%rdg ±5dgt
Voltage Ranges	AC: 5.0 – 300.0V (45 – 65Hz) ±1%rdg ±4dgt DC: ±5.0 – 300.0V ±1%rdg ±8dgt
Applicable Standards	IEC 61010-1 CAT III 300V Pollution Degree 2 IEC 61010-031, 61557-1, -5 IEC 61326-1, 2-2, IEC 60529 (IP40)
Power Source	LR6 (AA) (1.5V) × 2 pcs
Dimensions	232(L) × 51(W) × 42(D) mm
Weight	220g approx. (including battery)