Page 577 - Motor_protection_and_control_Manual_motor_starters_ contactors

Low Voltage Ride Through (LVRT) modules

Description
RU19 is designed to meet the Low Voltage Ride Through (LVRT) requirements for grid connections by staying
operational during voltage dips preventing disturbances on the grid it self.
The RU19 is a separate module connected to the contactors coil connection A1-A2 creating a delay function
of the opening of the contactor. When controlled by PLC, the contactor is operated directly whitout delay
functionality. The RU19 can be screw or DIN rail mounted.
Ordering details
For contactor Rated control circuit Type Order code Weight
voltage Pkg
Uc (1 pce)
V 50/60 Hz RU19/120 1SFN170801R1001 kg
110...120
0.400
AF116 ... AF370 use coil 33
1SFC101223V0001 AF400 ... AF1250 use coil 69 230...240 RU19/240 1SFN170801R1002 0.400
AF116 ... AF370 use coil 33
RU19/120 AF400 ... AF1250 use coil 70 5
AF116 ... AF1250
AF116 ... AF1250
A1 A2

X3 X4
RU19
X1 X2

For direct opening of AF400 ... AF1250
contactors, connect through built in
PLC interface.

Control inputs

Main dimensions mm, inches
49 1.93"

DIN-rail
mounting
171 6.73"

M5 screw (not provided) 1SFC101077D0201
5 Nm
RU19/240

ABB | 5/377