The LEM LA55-P/SP1 is a current transducer designed for electronic measurement of currents. This transducer utilizes the Hall effect to accurately measure AC, DC, and pulsed currents and provides an electrically isolated output signal that is proportional to the measured current. It is widely used in various industrial applications requiring precise current monitoring and control.

Applications:

• AC variable speed drives
• Static converters for DC motor drives
• Battery supplied applications
• Uninterruptible Power Supplies (UPS)
• Switched Mode Power Supplies (SMPS)
• Welding equipment

Features:

• Closed-loop (compensated) current transducer using the Hall effect
• Galvanic isolation between primary and secondary circuits
• Low temperature drift
• High accuracy
• Compact design
• Easy mounting

Benefits:

• Accurate current measurement: Provides precise and reliable measurement of currents, enabling accurate control and monitoring of electrical systems.
• Safety through isolation: Offers galvanic isolation between the primary and secondary circuits, protecting sensitive electronic equipment from high voltages and transients.
• Stable performance: Designed for demanding industrial environments, providing stable and reliable performance over a wide temperature range.
• Easy to integrate: Compact design and easy mounting facilitate integration into existing systems.
• Cost-effective solution: Provides a cost-effective solution for current measurement in diverse applications.

Additional Details:

The LA55-P/SP1 is capable of measuring currents up to 55A and outputs a signal proportional to the measured current. It operates with a supply voltage of ±15V DC. The galvanic isolation between the primary conductor and the secondary circuit ensures safety by preventing high-voltage transients from affecting the measurement circuit. The transducer’s construction includes a magnetic core and a Hall effect sensor, which together provide accurate and linear measurements of the current passing through the primary conductor.

The transducer is typically mounted on a panel or chassis using screws or other mounting hardware. It allows easy connection to both the primary current conductor and the secondary measurement circuit. The output signal, typically a small DC current proportional to the measured current, can be easily interfaced with various measurement and control systems. Meeting relevant industry standards for safety and performance, the LA55-P/SP1 ensures compliance with regulatory requirements.