IA-3, IA-4 SOFT STARTERS

Functions of IA-3, IA-4:

• controlling electric drives of regulating valves;
• softly starting an electric motor;
• electrodynamically braking an electric motor.

Technical characteristics of IA-3:

• capacity of controlled electric motors – from 3 to 15 kW;
• range of operating ambient air temperatures – from +5 to +75 °С;
• DU-О and DU-Z control commands are characterized by direct or pulsating voltage 24 V;
• power supply of IA-3 – three-phase voltage 220/380 V.

Technical characteristics of IA-4:

• capacity of controlled electric motors – from 0.06 to 3.5 kW;
• range of operating ambient air temperatures – from +5 to +50 °С;
• DU-О and DU-Z control commands are characterized by a range of direct or pulsating voltage from 18 to 34 V;
• power supply of IA-4 – three-phase voltage 220/380 V.

Key charakteristics:

• structural design (a remote device for wall or panel mounting) assures ease of installation and maintenance;
• possibility of implementation of different variants of actuator control:

• from local regulators;
• from controllers of instrumentation and control systems;
• from a console of a process operator (manually);

• use of several modes of operation:

• continuous;
• short-term;
• intermittent with frequency up to 630 activations per an hour.

Safety class – 3.
Safety category – В.
Protection degree – IP 54.

Implementation facilities:

• Khmelnitsky NPP
• Zaporizhzhya NPP
• Rivne NPP
• South-Ukraine NPP
• Balakovo NPP
• Rostov NPP
• Kursk NPP
• Kozloduy NPP (Bulgaria)