8
4 INSTALLATION AND OPERATION
personnel.
Make sure the circuit is de-energized before relay installation and
connection.
Before connecting, you must select the supply voltage (RKF-34, RKF-37
models). Do not change the supply voltage setpoint while the relay is
energized.
If there is a fault in the circuit, the output contact of the relay will
remain open after the relay is energized.
In the undervoltage event the relay will trip after a preset time delay
(RKF-34, RKF-37).
Phase sequence and phase loss faults will trip the relay and light up an
associated LED without time delay.
5 DELIVERY SCOPE
Phase monitoring relay RKF EKF — 1 pc.
6 SAFETY REQUIREMENTS
6.1. Do not operate relays with visible mechanical damage.
6.2. The relays conform to IEC 61140 Class 0 for protection against
electrical shock and must be installed in Class 1 enclosures or higher.
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