Field Instruments

Product Overview

The Kyoritsu KEW 4300 is a compact and easy-to-use simplified earth resistance tester based on the 2-pole measurement method. It is designed for quick grounding checks on distribution lines, electrical installations, and appliances.

In addition to earth resistance measurement, the KEW 4300 also measures AC/DC voltage, with True RMS measurement for AC voltage, making it a versatile tool for field technicians and maintenance engineers.

With low test current (max 2 mA), the instrument does not trip RCDs, ensuring safe and uninterrupted testing.

Key Features

• Simplified 2-pole earth resistance measurement
• Auto-ranging 200 Ω / 2000 Ω ranges
• Warning buzzer when earth resistance is 100 Ω or less
• LED indicator for excessive earth voltage detection
• Live circuit warning at 30 V or higher
• Detects voltage even during resistance measurement
• Built-in LED light for illuminating measurement points
• Automatic light control based on ambient brightness
• Small test current (max 2 mA) — does not trigger RCD
• True RMS AC voltage measurement
• Auto power-off function
• Compact pen-type design

Technical Specifications

Manufacturer Information

• Manufacturer: Kyoritsu
• Model: KEW 4300

Earth Resistance Measurement

• Ranges: 200.0 Ω / 2000 Ω (Auto-ranging)
• Accuracy: ±3% rdg ±5 dgt

Voltage Measurement

AC Voltage:
• 5.0 – 300.0 V (45–65 Hz)
• Accuracy: ±1% rdg ±4 dgt

DC Voltage:
• ±5.0 – 300.0 V
• Accuracy: ±1% rdg ±8 dgt

General Specifications

• Applicable Standards: IEC 61010-1 CAT III 300 V (Pollution Degree 2)
• Compliance: IEC 61557-1, IEC 61557-5, IEC 61326-1, IEC 60529 (IP40)
• Withstand Voltage: 3540 V AC for 5 seconds
• Power Supply: 2 × AA alkaline batteries
• Dimensions: 232 × 51 × 42 mm
• Weight: Approx. 220 g (including batteries)

Included Accessories

• Test lead with alligator clip and flat test probe
• Carrying case
• Instruction manual
• 2 × AA batteries

Optional accessories available for CAT II and CAT III configurations and extension probes.

Applications

• Quick grounding verification
• Distribution panel testing
• Electrical appliance grounding check
• Residential and commercial installations
• Maintenance and service inspections
• Troubleshooting earth faults

Why Buy from FieldInstruments.lk? (Kyoritsu KEW 4300)

• 100% Genuine Kyoritsu Instruments – Original products with manufacturer warranty
• Competitive pricing with fast island-wide delivery
• Trusted supplier for professional electrical test equipment
• Local warranty support and technical assistance
• Reliable after-sales service and calibration support
• Expert consultation for grounding and safety testing applications

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk