Basler Electric G1E-Z1P-B1E0F BE1-51 Solid State Protective Relay

Basler Electric BE1-51 G1E-Z1P-B1E0F Solid State Protective Relay is a self-powered, three‑phase protective relay in Basler’s BE1 family that provides time‑overcurrent protection for electrical feeders and switchgear. It monitors three‑phase currents and trips on preset time‑overcurrent (TOC) and instantaneous overcurrent (IOC) levels, making it suitable for coordinating protection in distribution networks and generator feed paths. The unit is specified for 125 VDC supply, with TOC settings typically rangeable from 0.75 to 12 seconds and an instantaneous current multiplier (IOC) from 1 to 40x, enabling precise protection across a wide operating window. It is designed to meet ANSI/IEEE C37.90.1 surge withstand and performance standards and operates from −40°C to +70°C, ensuring reliability in harsh industrial environments. As a retrofit‑friendly BE1 relay, BE1‑51 devices offer plug‑and‑play compatibility intended to replace older electromechanical relays with minimal wiring changes, preserving form, fit, and function within existing protection schemes while delivering solid‑state reliability. The G1E‑Z1P‑B1E0F variant denotes the exact model and configuration of this BE1‑51 relay, ensuring compatibility with specific protection applications and bus configurations while delivering Basler’s proven protection logic in a compact, robust package.