Single Phase Under Voltage Monitor/Relay

Trip Points

  • UOA120ALA
    • Drop Out: 97-130 VAC
    • Pick Up: 102-135 VAC
    • Hysteresis: 5 volts
  • UOA240ALA
    • Drop Out: 205-250 VAC
    • Pick Up: 215-260 VAC
    • Hysteresis: 10 Volts


UOA Series Spec Sheet and Wiring Diagram

 

RELAY OVERVIEW

The UOA Series offers protection to single phase equipment that is required to operate above a certain voltage minimum.  With operating voltage applied above the preset Pick-Up voltage, the internal relay will energize.  When the voltage falls below the preset Drop-Out voltage for a period longer than the release delay, the output relay will de-energize.

When line conditions return above the preset Pick-Up voltage, the UOA Series automatically resets and the internal relay energizes.  The Hysteresis in each unit provides a differential between the Pick-Up and Drop-Out Trip Points.

 

PURCHASE RELAY

ITEM NUMBER DESCRIPTION PRICE

QTY UOA120ALA

120 VAC Under Voltage Monitor
$94.50

QTY UOA240ALA

240 VAC Under Voltage Monitor
$106.50

QTY RB08

8-Pin Socket Base
$7.00
RELAY SPECIFICATIONS
Relay DPDT, 5A @ 240 VAC, Resistive
211 VA @ 240, Inductive
Response Times Operate: 50 mSEC (approximately)
Release: 0.5 SEC (approximately)
Temperature Rating Operate: 30 to 131 degrees F (0-55 C)
Storeage: -49 to 185 degrees F (-45 to 85 C)
Power Required Models up to 110 VDC: 3 Watts, Max
Models up to 300 VAC: 5 VA, Max
Terminations: 8-Pin Industrial Plug-in
Dimensions 3.5" H x 2.8" W x 1.75" D