HAZ 20000-SB , HAZ20000-SB

HAZ 20000-SB Open-Loop Hall Effect Current Transducer

HAZ 20000-SB Product Overview

The HAZ 20000-SB is an open-loop Hall effect current transducer from LEM's HAZ series, designed for the electronic measurement of DC, AC, pulsed, and mixed currents with galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). This panel-mount sensor provides an instantaneous voltage output, making it suitable for ultra-high-current industrial, traction, and renewable energy applications.

Rated for 20000 A RMS nominal with a bidirectional measuring range of ±20000 A, it outputs an instantaneous ±10 V voltage signal at rated current. Accuracy is ±1% with linearity of <±0.5%. Frequency bandwidth is DC to 3 kHz and response time to 90% of IPN is <10 µs. Supply voltage is ±15 V (±5%) with a maximum current consumption of ±30 mA. Overload capacity is 30000 A. Insulation test voltage is 12 kV RMS (50Hz, 1 minute) with impulse withstand voltage of 27 kV. Operating temperature range is -25°C to +85°C. Mass is approximately 6 kg. Mounting is panel mount with secondary connection via a Fujicon F2023A connector. Housing is PBT, UL 94-V0 recognized. Product status is Active.

HAZ 20000-SB Key Specifications

Rated current (IPN): 20000 A RMS
Measuring range (IPM): ±20000 A
Output signal: Instantaneous ±10 V (voltage)
Supply voltage: ±15 V (±5%)
Accuracy: ±1%
Linearity: <±0.5%
Response time: <10 µs
Frequency bandwidth: DC to 3 kHz
Maximum supply current: ±30 mA
Overload capacity: 30000 A
Insulation test voltage: 12 kV RMS (50Hz, 1 minute)
Impulse withstand voltage: 27 kV
Operating temperature: -25°C to +85°C
Mass: 6 kg
Mounting: Panel mount
Aperture: 162 x 42 mm
Technology: Open-loop Hall effect
Housing: PBT, UL 94-V0
Standards: EN 50178, RoHS compliant

HAZ 20000-SB Key Advantages

The HAZ 20000-SB features an open-loop Hall effect design with an insulating plastic case recognized according to UL 94-V0 for flame-retardant protection. The ±20000 A measuring range provides full-scale coverage for ultra-high-current applications. The 12 kV insulation test voltage and 27 kV impulse withstand voltage ensure safe operation in ultra-high-voltage environments. The <10 µs response time and DC to 3 kHz bandwidth capture fast current transients with high fidelity. The sensor offers easy mounting, small size and space savings, low power consumption, and high immunity to external interference, with a single design covering a wide current ratings range from 4000 A to 20000 A. The panel-mount design and Fujicon F2023A connector simplify installation in industrial cabinets and railway equipment. The ±10 V voltage output provides simplified integration with standard measurement and control systems.

HAZ 20000-SB Typical Applications

AC variable speed drives and servo motor drives
Static converters for DC motor drives
Battery supplied applications
Uninterruptible Power Supplies (UPS)
Switched Mode Power Supplies (SMPS)
Power supplies for welding and telecom applications
Single or three phase inverters
Propulsion and braking choppers
Propulsion converters and auxiliary converters
Battery chargers
Trackside traction systems and railway onboard applications
Smart grid and renewable energy systems

HAZ 20000-SB Why Choose the HAZ 20000-SB?

The HAZ 20000-SB combines a 20000 A rating, ±20000 A measuring range, ±1% accuracy, and panel-mount design in a robust package optimized for ultra-high-current industrial, railway, and renewable energy applications. Manufactured by LEM, a global leader in electrical measurement, it delivers reliable, accurate current sensing for demanding ultra-high-current environments. The open-loop Hall effect technology provides high immunity to external interference with non-intrusive measurement, while the single design for a wide current ratings range simplifies inventory and design efforts. The product is active and available for new designs.