Kyoritsu KEW-3431 Analogue Insulation Tester | 250V / 500V / 1000V Insulation Testing

Kyoritsu KEW-3431 Analogue Insulation Tester – Reliable Insulation Testing for Professionals

The Kyoritsu KEW-3431 Analogue Insulation Tester is a classic, durable, and easy-to-use instrument designed for accurate insulation resistance testing in electrical installations. Trusted by electricians, maintenance engineers, and safety inspectors worldwide, this tester delivers dependable readings and rugged performance in a simple analogue format. Ideal for routine electrical safety checks, commissioning, and preventive maintenance, the KEW-3431 is a reliable choice for professionals who value precision and durability.

Kyoritsu Kew 3431 Features 

• Accurate Insulation Resistance Measurement

The KEW-3431 provides precise insulation resistance testing, enabling technicians to evaluate the condition of wiring, electrical equipment, motors, transformers, and switchgear. Its analogue needle display offers clear and intuitive readings, ideal for quick diagnostics on the job site.

• Rugged Construction for Field Use

Designed with a robust casing and classic analogue dial, the tester withstands tough working environments. Its reliable mechanical design ensures long-term durability, making it suitable for frequent use in industrial, commercial, and residential applications.

• Simple Operation & Quick Results

With straightforward controls and a large, easy-to-read scale, the KEW-3431 simplifies insulation resistance testing even for technicians who prefer analogue measurement. This makes it a great choice for daily electrical testing tasks, site inspections, and equipment certification.

• Portable and User-Friendly

Compact and lightweight, the tester is easy to carry and ideal for field engineers and electricians who require efficient, on-the-go testing without sacrificing accuracy or reliability.

Kyoritsu Kew 3431 Analogue Insulation Tester Specification:

• Max. effective scale value 250V: 200MΩ
• Max. effective scale value 500V: 200MΩ
• Max. effective scale value 1000V: 2000MΩ
• Mid-scale value 250V: 5MΩ
• Mid-scale value 500V: 5MΩ
• Mid-scale value 1000V: 50MΩ
• Accuracy: ±5% of indicated value
• Second effective measuring ranges: Measuring ranges other than above, 0 and ∞
• Accuracy: ±10% of indicated value
• Voltage range: AC 600V [45 – 65Hz]/DC 600V
• Voltage Accuracy: ±5% of full scale value
• Power source: LR6/R6(AA)(1.5V) × 4