This technical manual provides instructions for the installation, commissioning, and operation of the MiCOM P54x (P541 & P542) device
This technical manual covers the MiCOM P54x series relays (models P541 and P542). It includes safety information, installation guidelines, commissioning steps, and detailed descriptions of settings, operation, and application notes. The document also provides firmware design details, SCADA communication information, and a version history for software and hardware.
The manual is organized into sections such as Introduction, Technical Data, Getting Started, Settings, Operation, Application Notes, Programmable Logic, Measurements and Recording, Firmware Design, Commissioning, Maintenance, Troubleshooting, SCADA Communications, Symbols and Glossary, and Installation. Safety specifications, protective class, and environmental limits are also listed.
| Protective Fuse Rating | 16 A, High Rupture Capacity (HRC) Red Spot type NIT or TIA equivalent |
|---|---|
| Protective Class | IEC 60255‑27:2005 Class I |
| Installation Category | IEC 60255‑27:2005 Installation Category III |
| Maximum Operating Altitude | 2000 m |
The recommended external protective fuse rating is 16 A, High Rupture Capacity (HRC) Red Spot type NIT or TIA equivalent.
It complies with IEC 60255‑27 Class I safety class.
The device can operate up to an altitude of 2000 meters.