Nanjing Zhuneng Electric Co., Ltd.

The REF615’s commissioning mode simulates discrete outputs and switch states to verify protection module accuracy and digital signal reliability during on-site debugging and system testing.

Looking for the compact efficiency of the Schneider Easergy P3 but need faster delivery and better margins? Our advanced protection relay is designed as a direct, drop-in alternative for standard medium-voltage applications. It delivers the core benefits engineers expect from the P3 series—comprehensive protection, intuitive operation, and reliable performance—without the OEM lead times or premium markup. Key Advantages: 100% Compatible: Form, fit, and function replacement for major OEMs like Schneider. Fast Delivery: Ships in 7 days, not the standard 12+ weeks. Cost-Effective: 40–60% below brand-name pricing to protect your project margin. Certified Reliability: IEC & CE certified for medium-voltage system safety. OEM/ODM Ready: Custom branding available for distributors and panel builders.

Low-voltage blocked overcurrent protection enhances sensitivity and reliability by combining current relays with voltage-blocking elements to ensure power system safety and stability.

ABB’s REF615 relay enables complex automatic transfer switching—e.g., dual utility feeds, bus tie, and two generators—with a single device, eliminating multiple ATS units and PLCs, simplifying wiring and reducing commissioning and maintenance costs.