IR4057-50 - Digital Insulation Tester with Bar Graph, 50 V to 1000 V
€488.00*
In stock in Germany
€488.00*
Product information IR4057-50 - Digital Insulation Tester with Bar Graph, 50 V to 1000 V
Key Specifications
- 5 test voltages from 50 V to 1000 V
- Insulation resistance up to 4000 MΩ
- Safety category CAT III 600 V
- Digital bar graph display
- 200 mA protective conductor test in accordance with EN 61557-4
Typical Applications
- Inspection and maintenance of low-voltage electrical installations
- Troubleshooting insulation faults in wiring, motors, and equipment
- Field testing of machinery, control panels, and distribution boards
- Periodic inspection of plant and equipment
| Feature | IR4053 | IR4056 | IR4057-50 | IR4057-90 | IR4059 |
|---|---|---|---|---|---|
| PVΩ Function | Yes | – | |||
| Bar Graph Display | – | Yes | |||
| Bluetooth | – | Optional (Z3210) | Yes (Z3210 included) | Optional (Z3210) | |
| Housing | Integrated hard case |
Compact housing with silicone protector |
|||
| L9788-10 Test Lead with Remote Switch | Optional | Yes | |||
Detailed Product Overview
In installation and maintenance work, insulation resistance testing is required when checking wiring, distribution boards, motors and electrical equipment after repairs or during periodic inspections. A dedicated insulation tester is often the practical choice without the need for a multifunction installation tester or combined test instrument.Digital Bar Graph and Fast PASS/FAIL Evaluation
In addition to the numeric display, the IR4057-50 features a digital bar graph that provides immediate visual indication of insulation resistance during measurement. Changes in resistance are visible directly on the scale display. The integrated comparator evaluates the insulation measurement in approximately 0.3 seconds and indicates PASS or FAIL. PASS and FAIL are signaled acoustically, and in the event of a FAIL result, the display backlight turns red.Protective Conductor (PE) and Voltage Check
Protective conductor testing is performed with a 200 mA test current in accordance with EN 61557-4. The defined test current applies sufficient load to the protective conductor connection to detect increased contact resistance, loose connections and oxidized terminals. This provides a more reliable assessment than a low-current continuity check performed with a standard digital multimeter.For Daily Field Work
The IR4057-50 complies with CAT III 600 V and has been tested for a 1 m drop onto concrete. It is specified for operation in ambient temperatures from -25 °C to 65 °C. The instrument is integrated into a robust hard case that forms a single protective unit and provides storage space for test leads and accessories. The leads remain connected during transport, allowing the tester to be stored and carried as one complete unit.- IR4057-50 Digital Insulation Tester
- L9787 Test Lead Set
- Neck strap
- Instruction manual
- LR6 (AA) alkaline Batteries ×4
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Product Catalog with data sheet, Field Measuring Instruments (English)39,121 KB pdf
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Product Catalog, INSULATION TESTER Series (English)6,116 KB pdf
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Instruction Manual, INSULATION TESTER IR4053, IR4055, IR4056, IR4057 (English)4,728 KB pdf
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Instruction Manual, INSULATION TESTER IR4053, IR4056, IR4057-50 (German)12,959 KB pdf
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Instruction Manual, INSULATION TESTER IR4053, IR4056, IR4057-50 (French)13,078 KB pdf
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