Operation Phase Monitoring Relays will protect against premature equipment failure caused by voltage faults on three-phase systems. These devices protect against unbalanced voltages or single phasing regardless of any regenerative voltages. The relay is energized when the phase sequence and all voltages are correct. Any one of four fault conditions will de-energize the relay. Re-energization is automatic upon correction of the fault. An LED indicates normal and tripped conditions.

AC OPERATED
NTE Type No.	Nom. Volt.	Contact Arr.	Adjustable Under Voltage Drop-Out	Input Current Nom.	Max. Contact Cur, @ 30VDC or 240VAC
R68-5A10-240	208/240VAC	SPDT	180-230V	14/12mA	10A
R68-5A10-480	480VAC	SPDT	360-460V	6mA	10A

ACCESSORIES
Mounting Styles	Description	NTE Type No.
Surface Mount	8-Pin Octal	R95-101
Panel Mount	8-Pin Octal	R95-118
DIN Rail Mount	8-Pin Octal	R95-113

Electrical Specifications

Contact
Rating: 10 Amps resistive at 240VAC, 1/2 HP at 240VAC,
10 Amps resistive at 30VDC
Life: 500,000 operations at full load
Mechanical Life: 7,000,000 operations at no load

Input
Nominal Input Voltage: See Chart
Steady State Input Current: See Chart

Operational Characteristics
Timing Values:
            Operate Time: 50mS
            Release Time: 50mS fixed on phase loss, phase unbalance, and phase reversal;  0.1-20sec adjustable on undervoltage only
Hysteresis: 2-3%

Protection
Transient: 10,000V for 20µs
Indicator LED: Red LED steady when all conditions are normal, and flashing when a fault condition has occurred
Reset: Automatic upon correction of fault

Environmental Characteristics
Operating: -28°C to +65°C