HAT
Compact current transducers for AC and DC currents from 200 to 1500A
HAT - Current sensors
The HAT family facilitates electronic measurements of DC, AC, or pulsed currents while ensuring galvanic isolation between the primary and secondary circuits.
These current sensors offer an instantaneous voltage output of +/- 4 V, operate with a bipolar power supply of +/- 15 V, and provide a DC bandwidth of 25 KHz.
HAT current sensors are based on Hall effect open-loop technology and are purpose-built for industrial applications.
HAT – Features and benefits

Main characteristics
- Hall Effect measuring principle
- Insulating plastic case recognized according to UL 94-V0
Benefits
- Easy installation
- Low power consumption
- Small size and space saving
- Only one design for wide current ratings range
- High immunity to external interference
Typical applications
HAT current sensors are specifically designed for the industrial area and can be effectively utilized in a wide range of applications, including:
- DC motor drives
- Switched Mode Power Supplies (SMPS)
- AC variable speed drives
- Uninterruptible Power Supplies (UPS)
- Battery supplied applications
- Power supplies for welding applications
LEM HAT – Download & Technical Characteristic
Product | Document | Primary nominal RMS voltage | Supply Voltage range | Op. Temperature |
---|---|---|---|---|
HAT 200-S | 200 A | 15 to 15 | -40 to 125°C | |
HAT 400-S | 400 A | 15 to 15 | -40 to 125°C | |
HAT 500-S | Datasheet | 500 A | 15 to 15 | -40 to 125°C |
HAT 600-S | Datasheet | 600 A | 15 to 15 | -40 to 125°C |
HAT 750-S | Datasheet | 750 A | 15 to 15 | -40 to 125°C |
HAT 800-S | Datasheet | 800 A | 15 to 15 | -40 to 125°C |
HAT 1000-S | Datasheet 3D |
1000 A | 15 to 15 | -40 to 125°C |
HAT 1200-S | Datasheet | 1200 A | 15 to 15 | -40 to 125°C |
HAT 1500-S | Datasheet | 1500 A | 15 to 15 | -40 to 125°C |
HAT sensors – ASK FOR SAMPLES / QUOTATIONS
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