Perfectly suited for buildings and industry, utilities, and large industrial processes. Perfectly suited for buildings and industry, utilities, and large industrial processes. The relay include protection for overcurrent, overload, broken conductor, earth-fault and breaker failure as per ANSI. It also feature an automatic recloser, a switch ON to fault, inrush protection and lockout among others. Simple, reliable, safe and easy-to-use, thanks to the User Interface display. The protection relay can to be supplied by a 48 VAC/VDC to 230 VAC/VDC network. It include 16 digital inputs, 1 RS485 communication port and 1 USB on front of the device. Mechanical dimensions are 169.5 mm in height, 170 mm in width and 205 mm in depth. The relays are certified with EN 60255-26 for electromagnetic compatiblity. The device is compatible with aditional modules and accessories: connection cables, communication modules, temperature and analogue input and output modules, LPVT & PLCT option, arc flash sensors, and other accessories.

Model:P3U30-5AAA3BBAA

protection functions：

Phase overcurrent 50/51

Directional phase overcurrent 67

Earth fault overcurrent 50N/51N

Directional earth fault 67N

Transient earth fault 67NI

Capacitor bank unbalance 51C

Broken conductor 46 I2/I1

Cold load pick-up

Switch ON to fault (SOTF)

Breaker failure 50BF

Directional active underpower 37P

Fault locator 21FL

Recloser 79

Phase undercurrent 37

Excessive starting time, locked rotor 48/51LR

Motor restart inhibition 66

Capacitor overvoltage 59C

Negative sequence overcurrent 46

Overvoltage 59

Undervoltage 27

Positive sequence undervoltage 27P

Earth fault overvoltage 59N

Underfrequency 81/81N

Rate of change of frequency 81R

Synchro-check 25

Lockout relay 86

CT supervision 60

VT supervision 60

H2 detection 68H2

H5 detection 68H5

Programmable stages 99

Programmable curve