Multifunctional programmable timer RNPP-312 NTRNP3120

Multifunctional protection and network parameter control RNPP-312

This advanced device is designed for comprehensive control of voltage quality in three-phase networks. RNPP-312 monitors the permissible voltage level, phase sequence, phase failure, and voltage symmetry, providing effective protection for connected devices. The device not only detects irregularities but also disconnects the load in case of a failure and automatically reconnects it after the correct parameters are restored. This minimizes downtime and ensures continuity of operation.

Versatile functions and flexibility

RNPP-312 offers a wide range of protective functions that can be adapted to the specific needs of the installation. It allows adjustment of the voltage activation threshold, automatic restart time (ART), and protection activation delay time. The ability to select the network voltage (400 V or 415 V) further increases its versatility. The device operates in several modes: control of minimum/maximum voltage, phase presence, incorrect phase sequence, and voltage symmetry. Phase presence control is active in all operating modes, providing constant monitoring of the network status.

Compact design and easy installation

The RNPP-312 relay is characterized by a very compact design (only 18 mm wide), which facilitates installation even in limited spaces. Connection is made via switching contacts, providing flexibility in integration with various control circuits. The device is resistant to interference thanks to the use of a pulse power supply, which guarantees reliable operation in harsh industrial conditions. An LED indicates the device status and any failures.

• Connection via a contactor – increases safety and reliability.
• Possibility to disable protective functions – allows adaptation of the device to specific application requirements.
• Switching contacts – provide flexibility in integration with various control circuits.
• Compact dimensions (90.2 x 36 x 64.5 mm) – facilitate installation in tight spaces.
• Interference resistance – guarantees stable operation even in environments with a high level of electromagnetic interference.
• Wide range of input voltages (230/400 AC) – enables use in various electrical networks.
• Two independent switching contacts (NO1-C1-NC1, NO2-C2-NC2) - increase the functionality and application possibilities of the device.

Applications

RNPP-312 finds application wherever protection against irregularities in the power supply network is required:

• Protection of motors and other electrical equipment against overvoltage, undervoltage, phase asymmetry, and power outages.
• Protection of refrigeration and ventilation installations against damage caused by power supply problems.
• Automatic transfer switches (ATS) - ensuring a stable power supply to critical loads during a mains failure.
• Compact control cabinets - an ideal solution for applications requiring space saving and high reliability.