Features
Versatile and rugged tools for applications with high currents
Confidently take reliable readings with the True RMS, Fluke 355 digital clamp meter the tool of choice for high current clamp-on amp meter measurement up to 2000 A. The extra-wide jaw easily clamps around large conductors, typically found in high-current applications. The extra rugged design and CAT IV 600 V, CAT III 1000 V ratings add an extra element of user protection when taking high-powered measurements.
Accurate peak measurements can be taken using the in-rush current mode, ideal for motors and inductive loads. The 355 also measures voltage and resistance, making this an ideal clamp meter for utilities, electrical contractors and industrial service technicians.
- Reliably handle a wide range of high-current applications with 2000 A AC + DC True RMS, 1400 A AC, and 2000 A DC
- The large 58 mm (2.3 in) jaw capacity is suitable for large or multiple conductors
- CAT IV 600 V, CAT III 1000 V rating for added user protection
- In-rush current measurement captures ‘power-on’ surge current with accuracy and repeatability
- High voltage measurement of 1000 V AC + DC True RMS, 600 V AC, and 1000 V DC allows the user to perform multiple tests with only one tool
- Resistance to 400K ohms coupled with a continuity beeper provide the convenience of a multimeter in a clamp meter.
- Accurately measure frequency up to 1 kHz for optimum troubleshooting
- Quickly analyze readings using the MIN, MAX, and AVG functions
- A large backlit display allows for easy visibility in low-lit areas
- Use the display hold feature to capture readings even when the display cannot be viewed
- Use the low-pass filter to smooth out noisy loads and stabilize readings
What's Included?
- C43 soft carrying case
- 6 AA batteries
- TL224 1.5 m silicone rubber test leads
- TP2 test probes
- AC285 alligator clips
- User manual
- 3 year warranty
Specifications
Electrical Specifications |
Current measurement DC and AC 10 Hz to 100 Hz |
Range |
40 A / 400 A / 2000 A / 1400 AC rms |
Resolution |
10 mA / 100 mA / 1 A |
Accuracy |
A: 1.5% rdg + 15 digits
A: 1.5% rdg + 5 digits |
Trigger level for Inrush |
0.50 A / 5.0 A / 5 A |
Trigger level for Hz filter OFF |
2.50 A / 2.5 A / 8 A |
Trigger level for Hz filter ON |
0.50 A / 2.5 A / 8 A |
Crest Factor (50/60 Hz) |
Range |
40 A / 400 A / 2000 A / 1400 AC rms |
Crest Factor1 |
2 @ 33 A, 2.4 @ 27 A
2 @ 330 A, 2.4 @ 270 A
2 @ 1000 A, 2.4 @ 833 A |
Current measurement AC 100.1 Hz to 1 kHz |
Range |
40 A / 400 A / 2000 A; 1400 AC rms |
Resolution |
10 mA / 100 mA / 1 A |
Accuracy |
10 A: 3.5% rdg + 15 digits
10 A: 3.5% rdg + 5 digits |
Trigger level for Inrush |
0.50 A / 5.0 A / 5 A |
Trigger level for Hz filter OFF |
2.50 A / 2.5 A / 8 A |
Trigger level for Hz filter ON |
0.50 A / 2.5 A / 8 A |
Voltage measurement DC and AC 10 Hz to 100 Hz
(600 V and 1000 V ranges have 10% over range to 660 V and 1100 V respectively.) |
Range |
4 V / 40 V / 400 V / 600 V AC rms / 1000 VDC |
Resolution |
1 mV / 10 mV / 100 mV / 1 V |
Accuracy |
1% rdg + 10 digits
1% rdg + 5 digits |
Trigger level for Hz filter OFF |
0.25 V / 6 V |
Trigger level for Hz filter ON |
0.25 V / 6 V |
Voltage measurement AC 100.1 Hz to 1 kHz
(600 V and 1000 V ranges have 10% over range to 660 V and 1100 V respectively.) |
Range |
4 V / 40 V / 400 V / 600 V ac rms |
Resolution |
1 mV / 10 mV / 100 mV / 1 V |
Accuracy |
3% rdg + 10 digits
3% rdg + 5 digits |
Trigger level for Hz filter OFF |
0.050 V / 0.25 V / 6 V |
Trigger level for Hz filter ON |
0.050 V / 0.25 V / 6 V |
Ohms measurement |
Range |
4 kΩ / 40 kΩ / 400 kΩ |
Resolution |
0.1 Ω / 1 Ω / 10 Ω / 100 Ω |
Accuracy |
1.5% + 5 digits |
Continuity beeper |
On at ≤ 30 Ω
Off at ≥ 100 Ω |
Frequency measurement |
Measurement range |
5.0 Hz to 1 kHz |
Resolution |
0.1 Hz (15 Hz to 399.9 Hz); 1 Hz (400 Hz to 1 kHz) |
Accuracy – 5.0 Hz to 100 Hz |
0.2% + 2 counts |
Accuracy – 100.1 Hz to 1 kHz |
0.5% + 5 counts |
Trigger level |
Refer to current and voltage tables |
1. Add 2% to error spec for CF > 2 |
General Specifications |
Batteries |
Six 1.5 V AA NEDA 15 A or IEC LR6 |
Battery life (with typical usage, backlight off) |
100 hours |
Test leads |
Rated to 1000 V |
Weight |
.814 kg (1.8 lb) |
Jaw size |
58 mm (2.28 in) |
Dimensions (L x W x D) |
300 x 98 x 52 mm (12 x 3.75 x 2 in) |
Safety rating |
IEC 61010-2-032, 600 V CAT IV, 1000 V CAT III |
Environmental Specifications |
Operating temperature |
32°F to +122°F (0°C to +50°C) |
Storage temperature |
-4°F to 140°F (-20°C to +60°C) |
Operating humidity |
0 to 95% (non-condensing) |
Operating altitude |
2000 m |
Storage altitude |
10,000 m |
IP rating |
42 (indoor use only) |
Drop test requirements |
1 m |
EMI, RFI, EMC |
FCC part 15, IEC/EN 61326-1:1997 class B
IEC/EN 61326:1997 3 V/m, performance criteria B, EN61325 |
Temperature coefficients |
Current |
0.1% of reading per °C outside 22°C to 24°C |
Voltage |
0.1% of reading per °C outside 22°C to 24°C |