Specifications

G14
GE Limitamp
®
Medium Voltage Motor Control
Components
G
Description
The Model LPVRB-120 is designed to protect 3-phase loads
from damaging power conditions. Its wide operating range
combined with UL and CE compliance enables quick access to
domestic and global markets. A unique microcontroller-based
voltage and phase sensing circuit constantly monitors the
three phase voltages to detect harmful power line conditions.
When a harmful condition is detected, the LPVRB-120’s output
relay is deactivated after a specified trip delay. The output
relay reactivates after power line conditions return to an
acceptable level for a specified amount of time (Restart
Delay) or after a manual reset. The trip and restart delays
prevent nuisance tripping due to rapidly fluctuating power
line conditions. An adjustment is provided to set the nominal
line voltage from 95-120 VAC. Other adjustments include a
1-30 second trip delay, a 1-500 second restart delay, and a
2-8% voltage unbalance trip point adjustment. Two LEDs
indicate the status of the Model LPVRB-120; Run Light,
Under Voltage, Over Voltage, Phasing Fault/ Reverse Phase,
and Manual Reset. The LPVRB-120 ships with a jumper
installed for automatic restart. A connector with two 12"
wires is included for manual reset switch.
Key Benefits
Protects 3-Phase motors from:
• Loss of any Phase
• Low Voltage
• High Voltage
• Voltage Unbalance
• Phase Reversal
• Rapid Cycling
Features
• Four adjustment pots provide versatility for all kinds of
applications
• Range from 95-120 VAC 50/60 Hz provides the versatility
needed to handle global applications
• Diagnostic LEDs indicate trip status and provide simple
troubleshooting
• Microcontroller based circuitry provides better accuracy
and higher reliability than analog designs
• Transient protected to meet IEEE and IEC standards and
operate under tough conditions
• Will detect single phase condition regardless of regenerated
voltages
• Compact design
• UL and cUL listed
• CE compliant
• Finger safe terminals
• 5 year warranty
• Made in USA
• Standard surface or DIN rail mount
• Standard 1-500 sec. variable restart delay
• Standard 2-8% variable voltage unbalance
• Standard 1-30 sec. variable trip delay
• One 10 amp general purpose Form C relay
• Optional manual reset
LPVRB-120 Phase Voltage Relay