Fluke 377FC True-RMS Non Contact Clamp Meter

Fluke 377 FC – Specifications

⚡ Electrical Measurements

• AC Current (Clamp Jaw)

  • Range: Up to 999.9 A

  • Resolution: 0.1 A

  • Accuracy: ±2% ±5 digits (10–100 Hz), ±2.5% ±5 digits (100–500 Hz)

  • Crest Factor: Up to 3 (varies with current range)

• AC Current (iFlex Flexible Current Probe)

  • Range: Up to 2500 A

  • Resolution: 0.1 A to 1 A

  • Accuracy: ±3% ±5 digits (5–500 Hz)

• DC Current (Clamp Jaw)

  • Range: Up to 999.9 A

  • Resolution: 0.1 A

  • Accuracy: ±2% ±5 digits

• AC Voltage (FieldSense, Non-Contact)

  • Range: Up to 1000 V

  • Accuracy: ±3% ±5 digits (typical for conductors up to 4/0 AWG)

• AC/DC Voltage (Test Leads)

  • Range: Up to 1000 V

  • Resolution: 0.1 V (≤600 V), 1 V (≤1000 V)

  • Accuracy: ±1% ±5 digits

• DC mV Input

  • Range: Up to 500.0 mV

  • Resolution: 0.1 mV

  • Accuracy: ±1% ±5 digits

• Frequency (Clamp or iFlex)

  • Range: 5 Hz to 500 Hz

  • Resolution: 0.1 Hz

  • Accuracy: ±0.5% ±5 digits

• Resistance

  • Range: Up to 60 kΩ

  • Resolution: 0.1 Ω / 1 Ω / 10 Ω

  • Accuracy: ±1% ±5 digits

• Capacitance

  • Range: Up to 1000 µF

  • Resolution: 0.1 µF to 1 µF

  • Accuracy: ±1% ±4 digits

🛠 Features

• FieldSense™ Technology: Non-contact measurement of voltage and current

• iFlex Probe: Expands current measurement range to 2500 A AC

• Three-Phase Testing: Complete 3-phase voltage and current measurement in 3 quick steps

• Fluke Connect Compatible: Wireless logging, remote monitoring, and reporting

• Visual Continuity & Measurement Stability Indicators: Visual cues for live circuits and stable readings

• Data Hold, Auto Power-Off, Min/Max/Avg Recording

📐 Physical & General Specs

• Jaw Opening: 34 mm

• iFlex Probe: 1.8 m length, 7.5 mm diameter, 450 mm Rogowski coil

• Display: Dual-display for simultaneous measurement readouts

• Battery: 2 × AA batteries

• Battery Life: ~200 hours

• Dimensions: 274 × 86 × 47 mm

• Weight: Approx. 463 g

🌍 Environmental & Safety Ratings

• Operating Temperature: –10 °C to +50 °C

• Storage Temperature: –40 °C to +60 °C

• Humidity: 0%–90% RH (non-condensing up to 30 °C)

• Altitude: Operating up to 2000 m

• Ingress Protection: IP30 (with jaw closed)

• Safety Category Ratings: CAT III 1000 V / CAT IV 600 V

• Pollution Degree: 2

✅ Summary Table