Do the D-Line LR9D****overload relays provide phase unbalance / phase failure protection?
Do the D line solid state overload relays provide phase unbalance and phase failure protection?
Tesys D solid state overload relays
Products sold and used in the United States
Identifying phase protection in SSOLR
Yes, properly selected, the LR9D**** Solid State Overload Relays provide protection against phase imbalance, unbalanced circuits and single phase circuits. They also have an alarm function to avoid tripping by load shedding.