Power factor monitoring relay COS-1monitors and scores power factor

Relay monitors phase shift between current and voltage - cos-φ in 3-phase and also 1-phase mains for monitoring overload/unloading of motors

• Supply set 3x400 V
• Function “MEMORY” - manual reset - button on front panel
• It is possible to connect current transformer in front of the device. This enables increase of current range
• 2 output relays, independent for each level
• Adjustable delay to eliminate short peak overloading
• Adjustable range and bottom level cos-φ, of power factor between 0.1- 0.99
• Adjustable delay to eliminate starting of motor
• Selectable hysteresis 5 or 10%
• Galvanically separated supply AC 230 V, AC 400 V or AC/DC 24 V
• Output contact: 2x changeover/DPDT 16 A / 250 V AC1
• 3-MODULE, DIN rail mounting