Earth Differential Relay Type A
• earth leakage current measurement by external toroidal gearbox
• measurement in true effective value (trms)
• programming and display via a backlit LCD display
- fault current (red display when it is taken)
- programming parameters
- instantaneous fault current
- disconnection of the external toroid
• status indication via 2 LEDs
• two programmable independent outputs (alarm and pre-alarm)
• type of reconnection: manual, via reset button or power failure
• din rail mounting (EN50022), 3 modules