Tailored solutions for diverse sectors and challenges.
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. Suitable for both single-phase and three-phase applications, the ES-37/51 combines undercurrent and overcurrent protection in a single device, helping safeguard equipment from abnormal operating conditions that may indicate faults, overloads, loss of load, or other system disturbances. Advanced digital circuitry enhances performance and measurement accuracy, while built-in diagnostics continuously monitor relay health and alert users if relay functionality or accuracy becomes compromised. The ES-37/51 offers dependable protection for industrial, commercial, utility, and power generation applications requiring reliable current monitoring and fault protection.