✅ 50438 – Schneider Electric PA50 Closed Toroid (VigiPacT / Vigilohm, 50 mm, 85 A) The Schneider Electric 50438 is the PA50 closed toroid A-type current transformer, part of the VigiPacT and Vigilohm insulation monitoring and earth-fault detection series. With a 50 mm inner diameter and a rated current of 85 A, it is designed for accurate detection of residual currents in low-voltage installations. Its robust closed-loop design ensures precision and noise immunity, making it suitable for protection systems that demand high reliability. This toroid sensor is essential for monitoring ground faults in critical infrastructure, providing reliable input signals to earth leakage relays such as RH99M. 🔧 Technical Specifications: Specification Details Part Number 50438 Model PA50 Brand Schneider Electric Product Type Closed Toroid A-Type Current Sensor Series VigiPacT / Vigilohm Internal Diameter 50 mm Rated Current 85 A Construction Closed circular toroid Compatible Relays RH99M, other VigiPacT & Vigilohm relays Mounting Panel-mounted or on DIN rail (via accessory) Insulation Reinforced insulation Standard Compliance IEC 62020, IEC 61557 🌟 Key Features: ✅ 85 A Rating for medium-to-high load detection in earth-leakage systems. ✅ 50 mm Window Size ideal for multiple conductor passes or busbars. ✅ Closed-Type Design enhances signal stability and external interference resistance. ✅ Trusted Compatibility with Schneider RH99M and other protection devices. ✅ Engineered for Safety in industrial and critical installations. 🧰 Applications: Ground fault detection in MCCs and control panels Monitoring of critical loads in substations Integration into building safety and automation systems Electrical protection for transformers, motors, and feeders