The FLUKE 1550C FC 5 KV DIGITAL INSULATION TESTER is a robust, field-proven instrument engineered for high-voltage insulation resistance testing in power generation, industrial, and utility environments. With a 5 kV output and the ability to measure up to 1 TΩ, it provides reliable diagnostics for motors, transformers, cables, and switchgear. The tester features a rechargeable 12 V lead-acid battery, a large 75 x 105 mm display, and supports FlukeView Forms software for data analysis. Its accuracy is specified for one year after calibration, with temperature compensation for extreme conditions, ensuring consistent performance in harsh settings.
| Electrical Specifications |
| Insulation Resistance Measurement |
| Test voltage (DC) |
Range |
Accuracy (± reading) |
| 250 V |
< 250 kΩ
250 kΩ to 5 GΩ
5 GΩ to 50 GΩ
> 50 GΩ |
Unspecified
5%
20%
Unspecified |
| 500 V |
< 500 kΩ
500 kΩ to 10 GΩ
10 GΩ to 100 GΩ
> 100 GΩ |
Unspecified
5%
20%
Unspecified |
| 1000 V |
< 1 MΩ
1 MΩ to 20 GΩ
20 GΩ to 200 GΩ
> 200 GΩ |
Unspecified
5%
20%
Unspecified |
| 2500 V |
< 2.5 MΩ
2.5 MΩ to 50 GΩ
50 GΩ to 500 GΩ
> 500 GΩ |
Unspecified
5%
20%
Unspecified |
| 5000 V |
< 5 MΩ
5 MΩ to 100 GΩ
100 GΩ to 1 TΩ
> 1 TΩ |
Unspecified
5%
20%
Unspecified |
| Bar graph range |
0 to 1 TΩ (1550C) - 0 to 2 TΩ (1555) |
| Insulation test voltage accuracy |
-0%, +10% at 1 mA load current |
| Induced AC mains current rejection |
2 mA maximum |
| Charging rate for capacitive load |
5 seconds per μF |
| Discharge rate for capacitive load |
1.5 s/μF |
| Leakage current measurement |
Range |
1 nA to 2 mA |
| - |
Accuracy |
± (5% + 2 nA) |
| Capacitance measurement |
Range |
0.01 μF to 15.00 μF |
| - |
Accuracy |
± (15% rdg + 0.03 μF) |
| Timer |
Range |
0 to 99 minutes |
| - |
Resolution setting |
1 minute |
| - |
Resolution indication |
1 second |
| Live circuit warning |
Warning range |
30 V to 660 V AC/DC, 50/60 Hz |
| - |
Voltage accuracy |
± (15% + 2 V) |
| Software specifications |
FlukeView Forms basic software requires a PC running Windows XP, Windows Vista, Windows 7 or Windows 8. |
| General Specifications |
| Display |
75 x 105 mm |
| Power |
12 V lead-acid rechargeable battery, Yuasa NP2.8-12 |
| Charger Input (AC) |
85 V to 250 V AC 50/60 Hz 20 VA |
| Dimensions |
269 x 277 x 160 mm (10.6 x 10.9 x 6.3 in) |
| Weight |
3.7 kg (8.2 lb) |
| Temperature (operating) |
-20°C to 50°C (-4°F to 122°F) |
| Temperature (storage) |
-20°C to 65°C (-4°F to 149°F) |
| Humidity |
80% to 31°C decreasing linearly to 50% at 50°C |
| Altitude |
2000 m |
| Enclosure sealing |
IP40 |
| Input overload protection |
1000 V AC |
| Electromagnetic compatibility |
EN 61326 |
| Safety compliance |
IEC 61010-1: Overvoltage category II, Pollution Degree 2.
IEC 61010-2-030: Measurement 600V CAT IV / 1000V CAT III
IEC 61557-1, IEC 61557-2 |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22