Description

The ATC Diversified SLA series is a family of three-phase universal phase monitoring relays, designed to provide cost-effective protection against phase loss, under voltage, and phase reversal conditions that can contribute to premature motor or equipment failure and downtime. It is designed for use with three-phase systems (Delta and Wye), such as those typically found in motor control centers or other critical motor and pump monitoring applications.

When a phase is lost while the motor is running, a condition known as regeneration occurs where a voltage is induced into the open phase nearly equal in magnitude to the normal phase-to-phase voltage. However, with the exception of lightly loaded motors, enough change is detected by the SLA to provide the required protection when properly adjusted.

Features:

• Monitors up to 480 VAC
• Protects three-phase equipment from:
• Phase loss
• Under voltage
• Phase reversal
• Delta or Wye systems
• Lockshaft or screwdriver adjustment
• Several enclosure styles

Applications:

• Critical motor and pump monitoring
• Water and wastewater plants
• Sewage plants
• Booster stations
• Grinders
• Irrigation equipment
• Petrochemical
• Machine Tool
• Conveyors
• HVAC/R
• Elevators/escalators
• Utilities
• Processing equipment
• Agricultural machinery and equipment
• Renewable energy& wind power turbine monitoring