Protection relay and automatic phase switching DigiTop PS-PRO-63A, cu o nominal capacity of 63A on each phase, is designed to ensure the safe and stable supply of single-phase consumers in industrial and domestic environments.

It works efficiently in a three-phase power system, providing protection against voltage fluctuations that can affect sensitive equipment.

Its main features include advanced microcontroller management, which monitors and displays voltage values for each phase on digital indicators. The switching between the power phases is carried out by means of reliable electromagnetic relays, and the device receives power directly from the controlled phases of the network.

The user can configure the switching / tripping limits for voltage, phase prioritization, start-up delay time, switching time to the backup phase and the delay time before returning to the priority phase. All settings are stored in a memory, ensuring their preservation in case of power failure.

Mounting the device is simple and efficient, on a standard 35 mm mounting rail, occupying 6 modules, which makes it ideal for integration into distribution boards and electrical control panels.

Technical characteristics:

• measured voltage (V): 50 – 400;
• stop time at the upper limit (sec.): 0.02;
• stop time at the lower limit (U mas. <120V, sec.): 0.02;
• voltmeter error (%), not more than: 1;
• nominal current at the relay contacts with the active load (A): 63;
• output control against contact welding: yes.

User defined parameters:

• lower stop limit (V): 120 – 200 (170 factory set);
• upper stop limit (V): 210 – 270 (250 factory set);
• priority phase: L1, L2, L3, OFF (OFF factory set);
• load start delay time (sec.): 0 – 600 (15 factory set);
• delay time for returning to the priority phase (sec.): 5 – 600 (15 factory set); [#$$#]
• the switching delay time at the lower limit, at 120V< U mas. < U stab. (sec.): 1 – 10 (1 factory set)