Precision Sensors for Solar Inverters and Renewable Energy

Grid-tied PV inverters, hybrid storage, and utility-scale solar farms demand sensors that deliver high bandwidth, long-term accuracy, and 25+ year field reliability.

Solar Inverter Measurement Challenges

PV inverters run at high efficiency targets (>98 %) for 25 years in uncontrolled outdoor environments. Measurement accuracy directly affects MPPT efficiency and revenue. Meanwhile, islanding detection and anti-islanding algorithms require fast, drift-free sensing. A 0.1 % offset drift translates to thousands of kWh lost over a solar farm lifetime.

Why Contisys for Solar & Renewable Energy?

Low Drift over Lifetime

Guaranteed offset drift below ±0.3 mA over 20 years — protects long-term MPPT efficiency.

High Bandwidth Sensing

150 kHz (-3 dB) bandwidth supports fast grid-support functions and anti-islanding algorithms.

Wide Measurement Range

Accurately sense low-irradiance morning currents and full-rated midday currents with a single sensor.

Robust Outdoor Rating

Conformal-coating-friendly construction; operating humidity to 95 % non-condensing.

Key Use Cases

String / MPPT Inverter

DC string current measurement for maximum power point tracking in 3-30 kW string inverters.

Central Inverter

High-current (>1000 A) bus-bar measurement for utility-scale central inverters.

Hybrid Storage Inverter

Bidirectional battery current sensing for PV + storage hybrid systems.

Grid-Tie Protection

Residual current monitoring for RCD/RCMU mandated by IEC 62109-2.

Standards Compliance:IEC 62109-1IEC 62109-2IEC 61000-6-2UL 1741RoHS

Recommended Products

Sensors optimized for Solar & Renewable Energy applications

CEB100LAE100
CEB

CEB100LAE100

Closed-loop (compensated) current transducer for high-precision current measurement.

Rated Input Current:100 A
Measuring Range:0 to ±350
Output Current:±100×IP/IP N
CEB200LAE100
CEB

CEB200LAE100

Closed-loop (compensated) current transducer for high-precision current measurement

Rated Input Current:200 A
Measuring Range:0 to ±600
Output Current:±100×IP/IP N
CEB300LAE150
CEB

CEB300LAE150

Closed-loop (compensated) current transducer for high-precision current measurement.

Rated Input Current:300 A
Measuring Range:0 to ±600
Output Current:±150×IP/IP
CEB300LAE100
CEB

CEB300LAE100

Closed-loop (compensated) current transducer for high-precision current measurement.

Rated Input Current:300 A
Measuring Range:0 to ±700
Output Current:±100×IP/IPN
CEB400LAE80
CEB

CEB400LAE80

Closed-loop (compensated) current transducer for high-precision current measurement.

Rated Input Current:400 A
Measuring Range:0 to ±700
Output Current:±80×IP/IPN
CEB500LAE250
CEB

CEB500LAE250

Closed-loop (compensated) current transducer for high-precision current measurement.

Rated Input Current:500 A
Measuring Range:0 to ±700
Output Current:±250×IP/IP N
CEB400LTC100SF-SP3
CEB

CEB400LTC100SF-SP3

High-precision closed-loop (compensated) current transducer designed for industrial and railway applications.

Rated Input Current:400 A
Measuring Range:0 to ±1000 A
Output Current:±80 × IP / IPN mA
CEB1000LTC250SFSP3
CEB

CEB1000LTC250SFSP3

High-precision closed-loop (compensated) current transducer designed for industrial and railway applications.

Rated Input Current:1000 A
Measuring Range:0 to ±3000 A
Output Current:±250 × IP / IPN mA

Frequently Asked Questions

Need a Custom Solution?

Our engineers can recommend the optimal sensor configuration for your specific Solar & Renewable Energy application.