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The popular ATC-Diversified Electronics SLU Series Universal Phase Monitors provide cost-effective protection against premature equipment failure caused by voltage faults on 3-phase systems (Delta or Wye). A single SLU Phase Monitoring Relay can be easily adjusted for the voltage, percent unbalance and fault delay requirements to protect against unbalanced voltages or single-phasing on applications up to 700 VAC.



With normal operating voltage present on all three phases in the proper sequence, the internal relay will energize (pick-up). When an incorrect phase sequence, phase loss, under-voltage, over-voltage, frequency shift or unbalance condition occurs greater than the settings, the internal relay will de-energize. When all conditions return to normal, the relay will energize when the adjustable restart delay has expired.



Both Delta and Wye systems may be monitored. In Wye systems, connections to neutral are not required.



Protects Against:

Phase Loss

Phase Reversal

Over/Under Voltage

Phase Unbalance

Over/Under Frequency

Phase Shift

Auto Ranging



Specifications:

Automatic or Manual Reset

Phase Unbalance: 2% to 10%, Adjustable

Fault Delay: 0.1 to 25 Sec, Adjustable

Restart: 0.5 to 300 Sec, Adjustable (Auto Restart)

Relay Rating: 10 A @ 240 VAC

UL and Canadian UL Listed

Brand/Series	SLU Series
Current Rating	10 A
Depth, Overall	110 mm
Dimensions, Overall	100 x 92.2 x 110
Enclosure Type	Polycarbonate Housing
For Use With	SLU Series Motor Starter
Input Type	Voltage
Length, Overall	100 mm
Output Type	SPDT/DPDT
Supply Voltage	200 to 630 VAC
Temperature, Operating, Maximum	+55 °C
Temperature, Operating, Minimum	0 °C
Temperature, Operating, Range	0 to +55 °C
Termination	Screw
Type	Phase Monitor
Voltage, Control	120 VAC
Width, Overall	75 mm
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Brand/Series SLU Series  ATC Diversified Electronics Brand/Series SLU Series  Motor Protection Brand/Series SLU Series  ATC Diversified Electronics Motor Protection Brand/Series SLU Series   Current Rating 10 A  ATC Diversified Electronics Current Rating 10 A  Motor Protection Current Rating 10 A  ATC Diversified Electronics Motor Protection Current Rating 10 A   Depth, Overall 110 mm  ATC Diversified Electronics Depth, Overall 110 mm  Motor Protection Depth, Overall 110 mm  ATC Diversified Electronics Motor Protection Depth, Overall 110 mm   Dimensions, Overall 100 x 92.2 x 110  ATC Diversified Electronics Dimensions, Overall 100 x 92.2 x 110  Motor Protection Dimensions, Overall 100 x 92.2 x 110  ATC Diversified Electronics Motor Protection Dimensions, Overall 100 x 92.2 x 110   Enclosure Type Polycarbonate Housing  ATC Diversified Electronics Enclosure Type Polycarbonate Housing  Motor Protection Enclosure Type Polycarbonate Housing  ATC Diversified Electronics Motor Protection Enclosure Type Polycarbonate Housing   For Use With SLU Series Motor Starter  ATC Diversified Electronics For Use With SLU Series Motor Starter  Motor Protection For Use With SLU Series Motor Starter  ATC Diversified Electronics Motor Protection For Use With SLU Series Motor Starter   Input Type Voltage  ATC Diversified Electronics Input Type Voltage  Motor Protection Input Type Voltage  ATC Diversified Electronics Motor Protection Input Type Voltage   Length, Overall 100 mm  ATC Diversified Electronics Length, Overall 100 mm  Motor Protection Length, Overall 100 mm  ATC Diversified Electronics Motor Protection Length, Overall 100 mm   Output Type SPDT/DPDT  ATC Diversified Electronics Output Type SPDT/DPDT  Motor Protection Output Type SPDT/DPDT  ATC Diversified Electronics Motor Protection Output Type SPDT/DPDT   Supply Voltage 200 to 630 VAC  ATC Diversified Electronics Supply Voltage 200 to 630 VAC  Motor Protection Supply Voltage 200 to 630 VAC  ATC Diversified Electronics Motor Protection Supply Voltage 200 to 630 VAC   Temperature, Operating, Maximum +55 °C  ATC Diversified Electronics Temperature, Operating, Maximum +55 °C  Motor Protection Temperature, Operating, Maximum +55 °C  ATC Diversified Electronics Motor Protection Temperature, Operating, Maximum +55 °C   Temperature, Operating, Minimum 0 °C  ATC Diversified Electronics Temperature, Operating, Minimum 0 °C  Motor Protection Temperature, Operating, Minimum 0 °C  ATC Diversified Electronics Motor Protection Temperature, Operating, Minimum 0 °C   Temperature, Operating, Range 0 to +55 °C  ATC Diversified Electronics Temperature, Operating, Range 0 to +55 °C  Motor Protection Temperature, Operating, Range 0 to +55 °C  ATC Diversified Electronics Motor Protection Temperature, Operating, Range 0 to +55 °C   Termination Screw  ATC Diversified Electronics Termination Screw  Motor Protection Termination Screw  ATC Diversified Electronics Motor Protection Termination Screw   Type Phase Monitor  ATC Diversified Electronics Type Phase Monitor  Motor Protection Type Phase Monitor  ATC Diversified Electronics Motor Protection Type Phase Monitor   Voltage, Control 120 VAC  ATC Diversified Electronics Voltage, Control 120 VAC  Motor Protection Voltage, Control 120 VAC  ATC Diversified Electronics Motor Protection Voltage, Control 120 VAC   Width, Overall 75 mm  ATC Diversified Electronics Width, Overall 75 mm  Motor Protection Width, Overall 75 mm  ATC Diversified Electronics Motor Protection Width, Overall 75 mm