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Setra Systems Announces Split Core Magnetic Sensing Technology for AC Electric Current Measurements

By DE Editors

Setra Systems has unveiled its split core magnetic current sensing technology, found within its Current Transducer (CTC) Series.

According to the company, the sensing technology provides cost-effective, high-accuracy measurement of electrical current up to 150 Amps. Such current typically may be found running through the cables and wires used within HVAC/R and industrial applications, including refrigeration units, air handlers, compressors, pumps, fans, small industrial motors and lighting. Offered in three models, the CTC Series features a three-position slide switch for user selection of the best amperage range for individual applications. Available versions include industry standard 4-20 mA and 0-5V outputs, both with 30/60/120 Amp selectable range; and a 0-10V output version with 20/100/150 Amp selectable range. They are also available in both 24 VDC loop- and self-powered versions. Total measurement accuracy is ±2% of selected range, with an isolation rating of up to 600 VAC RMS.

The series clamped split core and self-gripping iris fingers design allows for the magnetic current transducer to grip onto the cable without additional support. In addition, the series is directly compatible with a snap-on command relay. Two optional power relay modules with LED indicators, sold separately as Models CCR-24 (24VAC/VDC) and CCR-12 (12VAC/VDC) are available for remote motor startups. Designed for onsite mechanical attachment to the CTC Series, Model CCR relays provide a cost-effective solution for load switching without the need to mount an external relay elsewhere in the control enclosure.

For more information, visit Setra Systems.

Sources: Press materials received from the company and additional information gleaned from the company’s website. br>

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