MOHAMMAD MAHDI Electronics Trading LLC
Hioki IR4057-50 Insulation Tester
Brand:
Hioki
SKU:
1131
Discover the Hioki Ir4057-50, ideal for accurate 1000V insulation testing in electrical systems. Enhance your diagnostics today.
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Description
Overview
The Hioki IR4057-50 is a high-performance five-range digital insulation resistance tester (megohmmeter) offering test voltages from 50 V to 1000 V and efficient functions that shorten field insulation-testing time. It delivers stable, high-speed readings with a 0.3-second response for quick PASS/FAIL decisions, and includes a built-in AC/DC voltage meter that is convenient for testing solar power generation systems and electric vehicles. Rugged and drop-proof with wireless communication support, the IR4057-50 is a professional-grade tool for demanding electrical and industrial testing.
Key Features
- Five test voltages from 50 V/100 MΩ to 1000 V/4000 MΩ
- Fast 0.3-second response for quick PASS/FAIL judgment
- Built-in AC/DC voltage meter for solar and EV testing
- Comparator function for go/no-go decisions
- Drop-proof and rugged all-in-one design
- Wireless communication support (Z3210 adapter)
Applications
- Insulation testing of electrical installations and equipment
- Solar power generation and electric-vehicle testing
- Field electrical maintenance and troubleshooting
- Preventive maintenance and safety inspection
What’s in the Box
- IR4057-50 Insulation Tester
- Test leads
- LR6 (AA) alkaline batteries ×4
- Instruction manual
Why buy from MME in UAE
MOHAMMAD MAHDI Electronics Trading LLC (MME) is a trusted supplier of Hioki test and measurement equipment in the UAE. We offer genuine products, competitive pricing, fast local delivery across Dubai, Abu Dhabi and the wider UAE, and knowledgeable after-sales support. 
Download the datasheet
Specifications
Specifications
Hioki IR4057-50 Specifications
| Specification | 50 V DC | 125 V DC | 250 V DC | 500 V DC | 1000 V DC |
|---|---|---|---|---|---|
| Rated Output Voltage | 50 V DC | 125 V DC | 250 V DC | 500 V DC | 1000 V DC |
| Effective Maximum Indicated Value | 100 MΩ | 250 MΩ | 500 MΩ | 2000 MΩ | 4000 MΩ |
| Accuracy (1st Effective Measuring Range MΩ) | ±2 % rdg. ±2 dgt. (0.200 – 10.00) | ±2 % rdg. ±2 dgt. (0.200 – 25.0) | ±2 % rdg. ±2 dgt. (0.200 – 50.0) | ±2 % rdg. ±2 dgt. (0.200 – 500) | ±2 % rdg. ±2 dgt. (0.200 – 1000) |
| Lower Limit Resistance | 0.05 MΩ | 0.125 MΩ | 0.25 MΩ | 0.5 MΩ | 1 MΩ |
| 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 kΩ 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 kΩ or higher, Average rectifier | |||
| Low Resistance Range | 10 Ω (0.01 Ω resolution) to 1000 Ω (1 Ω resolution), 3 ranges | Basic accuracy: ±3 % rdg. ±2 dgt., testing current 200 mA or more (at 6 Ω 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 MΩ 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 × 4, 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 mm (6.26 in) W × 177 mm (6.97 in) H× 53 mm (2.09 in) D, 640 g (22.6 oz) (including batteries, excluding test leads) | ||||
| Included Accessories | Connection cable L4930 ×1, Alligator clip set L4935 ×1, Test pin set L4938 ×1, Neck strap ×1, Instruction manual ×1, LR6 (AA) alkaline batteries ×4 | ||||
Reviews (2)
2 reviews for Hioki IR4057-50 Insulation Tester
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Bench Multimeters
Cynthia –
They are really easy to work with.
mick –
The Ir4057-50 by Hioki offers exceptional reliability and power in insulation testing, making it a must-have for professionals.