Phone: +38 (044) 500-61-51 (-52, 53), +38 (063) 313-57-17 - Email: sales@relsis.ua

Control Stations of Motor Protection
of the SUZD series

Stations of the SUZD series are intended for harmonious association of functions of protection, automatic control, the alarm system, indication, monitoring of work with function of economy of the electric power of three-phase asynchronous electric motors, pumps, fans, compressors, the lifting and transport equipment, industrial facilities with supply voltage 3x220/380 V with power from 0,25 to 320 kW.

SUZD series

  • SUZD-01...06 - Control stations of motor protection based on microprocessor protection;
  • SUZD-P - Control stations of motor protection with gradual start-up;
  • SUZD-CH - Control stations of motor protection with using of frequency converter;
  • SUZD-М - Control stations of motor protection with integration in APCS;
  • SUZD-ТЕ - Control stations of motor protection based on the solid-state relays and thermal protection;
  • SUZD-Т - Control stations of motor protection on thermal protection.

Control Stations of Motor Protection
based on Microprocessor Protection
SUZD-01...06

SUZD-01 - Control Stations of Motor Protection

Main functions

  • Connections control in four modes: manual, automatic, remote and telecontrol.
  • Digital and light indication of controlled parameters.
  • Motor reversal (SUZD-01...06Р).
  • AVR - switching-in of a reserve power supply (voltage control relay) (SUZD-01...06А).
  • Gradual start-up according to the scheme "star-triangle" (SUZD-01...06 s/t).

Learn more








Control Station of Motor Protection
with Gradual Start-Up
SUZD-P

SUZD-P - Control Station of Motor Protection

Main functions

  • Controlled gradual start-up (the unit of gradual start-up).
  • Connections control in four modes: manual, automatic, remote and telecontrol.
  • Digital and light indication of controlled parameters.
  • Current protection (automatic switch) (SUZD-PТ).
  • Thermal protection (thermal relay).
  • Voltage protection (voltage relay).
  • Motor reversal (SUZD-P01...06R, SUZD-PТЕR).
  • AVR - switching-in of a reserve power supply (voltage control relay) (SUZD-P01...06А, SUZD-PТЕА).

Learn more






Control Station of Motor Protection
with Using of Frequency Converter
SUZD-CH

SUZD-CH - Control Station of Motor Protection

This is the station of control and protection on the basis of microprocessor relays of protection with frequency regulation of torque and frequency of rotation of the electric motor (pump) on feedback that allows to operate by small agricultural, industrial, technological units of automation of buildings and other units of the consumer.

Main functions

  • Controlled gradual start-up (frequency converter).
  • Minimum wear of motor and driving unit.
  • Power saving.
  • Connections control in two (SUZD-CH) or four (SUZD-CH01...06) modes: manual, automatic, remote and telecontrol.
  • Rotations checking of the electric drive with using of feedback (sensors).
  • Full protection of the motor and driving unit.
  • Digital and light indication of controlled parameters.
  • Current protection (automatic switch).
  • Thermal protection (thermal relay).
  • Protection as a part of frequency converter.

Learn moree


Control Stations of Motor Protection
with integration in APCS
SUZD-М

SUZD-М - Control Stations of Motor Protection

Main functions

  • Operating with using in advance fixed algorithm.
  • Connections control in four modes: manual, automatic, remote and telecontrol.
  • Digital and light indication of the controlled parameters.
  • Association of flow lines and other automatic units in industrial control system.
  • Power saving (up to 60%).
  • Minimum wear of motor and driving unit.
  • Automatic gradual start-up and operating with using in advance fixed algorithm (frequency convereter and controller) (SUZD-М04CH, SUZD-М06CH).
  • Rotations checking of electric drive with using of feedback (sensors).

Learn more


Control Stations of Motor Protection
based on Solid-state Relays and Thermal Protection
SUZD-ТЕ, SUZD-Т

SUZD-ТЕ - Control Stations of Motor Protection

SUZD-Т - Control Stations of Motor Protection

Main functions

  • Current protection (automatic switch).
  • Thermal protection (thermal relay).
  • Voltage protection (voltage relay) (SUZD-ТЕ).
  • Connections control in two (SUZD-Т) or three (SUZD-ТЕ) modes: manual, automatic and remote.
  • Motor reversal (SUZD-ТЕR).
  • Switching-in of a reserve power supply (voltage control relay) (SUZD-ТЕА).
  • Control on the timer (time relay) (SUZD-ТЕВ).
  • Gradual start-up according to the scheme "star - triangle" (SUZD-Т s/t, SUZD-ТЕ s/t).

Learn more about SUZD-ТЕ

Learn more about SUZD-Т









Control stations SUZD allow to:

  • create completely automatic mode of control of drives with a possibility of remote measurement of parameters, the analysis of the modes, recording and preservation of parameters of production cycles;
  • look through all current measured values at any moment in the place and on telemetry on the computer;
  • define the most effective operating modes for optimization of a resource of the motor, consumption of the electric power and work of personnel, using the operational and saved-up information of SUZD;
  • carry out accounting (not commercial) of the consumed electric energy and signaling of telemetry in the system of technical accounting of the top level;
  • perform functions of local automation of technological process;
  • carry out transfer of emergency signals to an automatic control system of the top level;
  • carry out receiving and processing of the operating signals from an automatic control system of the top level;
  • carry out displaying of electric parameters, conditions of loading and operating time, a possibility of remote configuration and control from the remote workstation;
  • install the portable terminal on a case door;
  • install the built-in serial port RS485 for connection to the bus with the ModBus RTU protocol.

Detailed information on SUZD is specified in the comparative table


Functions of the station SUZD- 01...06 P CH М ТЕ Т
Rated current up to 1000 A
Protection functions
Protection against current overload    
Protection against big impulse overloads    
Protection against underrunning    
Protection against decrease of the voltage supply  
Protection against increase of voltage supply  
Protection against current asymmetry  
Protection against excess of level of earth current    
Protection against wrong phase rotation  
Protection against decrease of isolation resistance of motor coils before start-up    
Protection against sticking effect of the starter before start-up    
Protection against phase break  
Service functions
Monitoring and indication:            
     - current in each phase  
     - voltage in the network in each phase  
     - frequency of supply network    
     - cos φ of electric motor    
     - motor temperature    
     - active, reactive and gross power of motor    
Temperature measurement of electric motor by means of temperature sensor    
Reset of emergency parameters    
Password    
Motor-meter    
Digital indication of working modes  
Embedded interface RS-485    
Possibility of switching off of functions which aren't used    
Event log (up to 100)    
Additional functions
Automatic repeated start-ups (up to 5)    
Automatic switching-on of reserve  
Gradual start-up with using of the scheme «Υ-∆»      
Gradual start-up with using of the unit of gradual start-up      
Motor frequency control with using of frequency converter      
Motor control by means of PLK        
Motor operation in the reverse mode  
Light indication of overcurrent condition  
Motor control within a day  
Motor control using level sensor  
Motor control using sensor «dry course»          
Motor control using sensor «flooding»          
Motor control using temperature sensor          
Lighting in Control Stations of Motor Protection
Heating in Control Stations of Motor Protection
Light indication of motor condition (switching on/off)
Warning system  
Beeping
Working mode of Control Stations of Motor Protection (manual/automatic)  
Motor control (start-up/stop)
Panic button
Female connector
Delay before motor start-up  
Cooling system (additional)    
Wireless system of data transfer    
Control system for servodrive        
Motor control by means of PC    
Wireless control system    
Modbus RTU protocol (telecontrol and data exchange)    
• - the function was done;
○ - the function will be done by means of order.



Contact person for SUZD:
Matviienko Sergii tel.    tel.: +38(044) 406-61-80;
   tel./fax: +38(044) 406-61-52, -53
e-mail    This email address is being protected from spambots. You need JavaScript enabled to view it.
Chernous Yulian tel.    tel.: +38(044) 406-61-52;
   tel./fax: +38(044) 406-61-53
e-mail    This email address is being protected from spambots. You need JavaScript enabled to view it.