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Phase and earth fault detection
Use the 7SR23 DAD numeric high impedance circulating current relay with four current inputs. Accurately detect phase and earth faults to execute rapid response for system stability.
Why Reyrolle 7SR23?
The Reyrolle 7SR23 DAD is a numeric high impedance circulating current relay with four current inputs. Use it as a unit protection to detect phase and earth faults in critical electrical infrastructure.
This relay provides comprehensive unit protection for your electrical assets. It detects phase and earth faults to prevent damage and deliver operational continuity across busbars, transformers and motors.
An integral CT supervision feature detects open circuits in CT secondary wiring for reliability. Integrated logic allows optimal configuration of relay input and output functionality, streamlining setup. Access protection, instrumentation and metering functionality via data comms channels, including a front fascia USB port and RS485 rear port, for flexible local and remote monitoring.
Key benefits
Protect your system
Precisely detect phase and earth faults to protect your electrical systems. Integral CT supervision identifies open circuits in secondary wiring to prevent issues and maintain continuous, safe operation.
Simplify installation and setup
Design and install easily with standardized external components in an Epsilon case. Our integrated logic effectively configures relay input and output functionality to streamline setup and reduce complexity for your team.
Maintain control remotely
Access critical protection, instrumentation and metering data through various communication channels. Connect locally via a front USB port or remotely using the RS485 rear port to stay informed and in control from any location.
Featured capabilities
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Diverse applications
Apply to busbars, connections, transformers, reactors and motors. Use in high impedance applications with stabilizing and non-linear resistors. Standardized components in an Epsilon case simplify design and installation.
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Connection options
Access protection, instrumentation and metering via data communication channels. Connect locally using a front fascia USB port or remotely with a rear RS485 port. Integrated logic effectively configures relay I/O.