I400S Fluke Clamp Meter

Additional Features:

• Companion to your scope or power quality meter to measure up to 400 A AC
• Only current clamp available with a CAT IV 600 V/CAT III 1000 V safety rating
• Specially designed to offer maximum utility in a compact shape
• Take accurate current readings without breaking the circuit
• Soft non-slippery overmold handle
• Optional PM9081/001 BNC/Banana adapter for DMM's
• Two ranges: 40 A and 400 A, 10 and 1 mV/Amp output
• Max. conductor Ø 32 mm
• Nominal current range: 40 A Range: 0.5 A to 40 A; 400 A Range: 5 A to 400 A
• Basic accuracy: 40 A Range: 2% + 0.015 A (45-400 Hz); 400 A Range: 2% + 0.04 A (45-400 Hz)
• Typical bandwidth: 40 A Range: 5 Hz-10 kHz; 400 A Range: 5 Hz - 10 kHz
• Output level(s): 40 A Range: 10 mV/A; 400 A Range: 1 mV/A
• Crest factor: 40 A Range: ≤ 3; 400 A Range: ≤ 3 to 300 A, ≤ 2.5 to 400 A
• Safety: CAT IV, 600 V, CAT III, 1000 V
• Maximum non-destructive current: 1000 V AC
• Maximum conductor size: 32 mm (1.25 inches)
• Output cable length: 2.5 m (8.2 ft)
• Common Mode Voltage: 1000 V ac rms from earth ground, in compliance with EN61010
• Input Load Impedance (of host instrument): > 1 M Ω in parallel with up to 47 pF
• Maximum Non-destructive Current: 1000 A
• Duty Cycle: 0.5 A to 400 A continuous
• Influence of Adjacent Conductor: < 9.0 mA/A
• Influence of Conductor Position in Jaw Opening: ± 1.0 % of reading + 0.05 A 
• Altitude: Operating: 2000 m; 2000 m to 4000 m, derate category rating to 1000 V CAT II/600 V CAT III, Non-operating: 12000 m 
• BNC adapter
• Dimensions: 150 x 70 x 30 mm
• 1-Year Warranty

Phase shift 40 A Range

• 0.5 to 1 A: Unspecified
• 1 A to 5 A: 4°
• 5 A to 10 A: 3°
• 10 A to 20 A: 3°
• 20 A to 40 A: 2°
• 40 A to 400 A: NA

Phase shift 400 A Range

• 0.5 to 1 A: NA
• 1 A to 5 A: NA
• 5 A to 10 A: Unspecified
• 10 A to 20 A: 2°
• 20 A to 40 A: 2°
• 40 A to 400 A: 1.5°

The i400s is compatible with any Fluke Multimeter or any other current measurement device that has the following features:

• BNC or Banana inputs
• Input accuracy of 2 % or better to take full advantage of the accuracy of the Current Clamp.
• Input impedance of > 1 M Ω in parallel with up to 47 pF 

The Fluke i400S AC current clamp with BNC output extends the functionality of portable oscilloscopes or power quality meters to measure up to 400 A AC. Fluke current clamps extend the current ranges of digital multimeters, power quality analyzers, and portable oscilloscopes and are available for both AC and AC/DC environments. The Fluke i400s is specially designed to offer maximum utility in a compact shape and is the only current clamp available with a CAT IV 600/ CAT III 1000 V safety rating.