L60 Line Phase Comparison Relay - UR Series Instruction Manual - L60 Revision: 2.6X
L60 Line Phase Comparison Relay - UR Series Instruction Manual - L60 Revision: 3.3x
L60 Line Phase Comparison Relay - UR Series Instruction Manual - L60 Revision: 4.9x
L60 Line Phase Comparison System - UR Series Instruction Manual - L60 Revision: 5.4x
L60 Line Phase Comparison System - UR Series Instruction Manual - L60 Revision: 5.5x