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Difference Between LR2K and LR7K Overload Relays

Issue:
What is the difference between LR2K and LR7K overloads (eg LR2K0316 and LR7K0316)?

Product Line:
K-Line Overload Relays - GIC Product

Environment:
US Product

Cause:
Product Specifications

Resolution:
LR2K is for three phase or balanced loads.  LR7K is for single phase or unbalanced loads.
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