Description
THE Pextron PCPT 4 Relay is a microprocessor-based digital thermal protection device, developed for applications in medium voltage systems, such as dry transformers and other electrical machines. With multiple ANSI protection functions, MODBUS® RTU communication and robust design, it offers high reliability and ease of integration into industrial automation systems.
Main Technical Characteristics:
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ANSI Protection Functions:
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23: Temperature control device.
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26: Thermal device of the equipment.
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49: Thermal relay for electrical machine or transformer.
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- Inputs and Outputs:
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4 inputs for RTD Pt100Ω sensors – 3 wires DIN 43.760 (range 0 to 250°C).
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1 command output for alarm (ALARM).
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1 output for shutdown command (TRIP).
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1 output for open or short sensor fault (FAULT).
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2 outputs for fan control (FAN I and FAN II).
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