In the world of measurement equipment, safety comes first, and Fluke | Fluke model i400 embodies this approach.
This current clamp, which is part of the digital multimeter (Digital Multimeters) accessories, is the only current clamp that has CAT IV 600V / CAT III 1000V safety certification.
This means you can safely use it in the main electrical inputs of buildings and hazardous industrial environments.
The i400 is designed for simplicity and durability. The output of this device is 1 millivolt per ampere; this means if your multimeter shows 150mV, it indicates that 150 amps are flowing.
The body of this product is made of durable plastic with overmolded soft-touch material, making it easy to grip even with thick safety gloves and preventing slippage.
If you are looking for a tool that will work for years without needing batteries or complex calibrations, the i400 is your ultimate choice.
Features and Benefits of the Fluke i400 AC Current Clamp
- Accurate AC current measurement up to 400 amps
- 1mA output per amp for easy reading on a multimeter
- Highest safety rating in its class: CAT IV 600 V / CAT III 1000 V
- Ergonomic design and non-slip body for one-handed operation
- No battery required (powered through magnetic induction)
- Fully compatible with most Fluke multimeters and other brands with milliamp inputs
Technical Specifications
| Feature | Value / Description |
|---|---|
| AC Current Range | 1A to 400A |
| Output Signal | 1mA/Amp |
| Basic Accuracy | 2% + 0.06A (45 Hz to 400 Hz) |
| Maximum Conductor Diameter | 32mm (1.25 inch) |
| Safety Standards | CAT IV 600V / CAT III 1000V |
| Connection Type | Safety Shrouded Banana Plugs |
| Body Material | Heavy-duty rubber overmolding |
Frequently Asked Questions about the Fluke i400 AC Current Clamp
Does the i400 measure DC current as well?
No, this model operates based on a current transformer (CT) and is only for measuring alternating currents (AC).
Do I need a battery to use this clamp?
No, one of the greatest advantages of the i400 is that it powers itself through electromagnetic induction from the cable being measured, and it never runs out!
Which multimeters is this clamp compatible with?
It is fully compatible with all multimeters that have a standard banana plug input and the capability to measure milliamperes (mA AC).
Conclusion
The Fluke i400 combines simplicity with unparalleled security. If your priority on industrial sites is personal safety and tool durability, this 400 amp clamp is the most reliable addition to your multimeter that will never let you down.
