The ES-55 Power Factor Relay is a microprocessor-based protection relay designed to monitor power factor and protect synchronous motors from damaging operating conditions.
The ES-51 Overcurrent Relay is a microprocessor-based protection relay designed to provide accurate current monitoring and reliable overcurrent protection for electrical power systems.
The ES-47 Phase Sequence Relay monitors a three-phase, three-wire system for correct phase rotation/sequence. It provides protection against incorrect phase sequence, phase loss, and undervoltage.
The ES-47N Phase Balance Relay is a microprocessor-based protective relay designed to monitor three-phase power systems for voltage imbalance conditions that can adversely affect equipment performance and reliability.
ES reverse power relays can prevent damage due to reverse power flow such as generator motoring caused by a loss of prime mover torque. The ES-32 relay achieves this by monitoring the direction of real power flow.
ES ac current relays provide current monitoring and undercurrent protection and may be specified for use in single-phase or three-phase applications.
The ES-37/51 Under/Overcurrent Relay is a microprocessor-based protective relay designed to provide comprehensive current monitoring and protection for electrical power systems.
The ES-25 Sync-Check Relay is a microprocessor-based protection relay designed to verify synchronization between two AC power sources before allowing circuit breaker closure.
