The SIEMENS 7SJ5115-5CA00-0A/HH is a Numerical Protection Relay from the SIPROTEC 5 series of protection relays manufactured by Siemens.

The SIPROTEC 5 series offers advanced functionality, flexibility, and ease of integration into modern protection, control, and systems.

Type: Numerical Protection Relay

Series: SIPROTEC 5

Manufacturer: Siemens

The 7SJ5115-5CA00-0A/HH relay is part of Siemens' SIPROTEC 5 series, which is designed for the protection of feeders and transformers in medium and high-voltage networks. 

The 7SJ5115-5CA00-0A/HH numerical relay uses microprocessor-based technology for precise fault detection, measurement, and protection of power systems.

The 7SJ5115-5CA00-0A/HH relay supports IEC 61850 and DNP 3.0 communication protocols, making it compatible with modern substation systems.

It can be integrated with SCADA (Supervisory Control and Data Acquisition) systems for remote monitoring and control, ensuring system-wide visibility and diagnostics.

The 7SJ5115-5CA00-0A/HH relay provides comprehensive measurements for voltage, current, power, and energy, which are essential for the operation and control of electrical systems.

The 7SJ5115-5CA00-0A/HH relay can be configured to suit a wide range of applications and system requirements.

Nominal current ranges：1A to 5A.

The relay supports 50Hz and 60Hz.