Basler Electric BE151G1EB6PB0N0F – Protective Relay
The Basler Electric BE151G1EB6PB0N0F is a solid‑state protective relay that provides comprehensive voltage and frequency protection for generators, transformers, and feeders. It integrates multiple protection functions in a single compact unit, reducing panel space and simplifying wiring.
Protection Functions
The relay includes overvoltage (ANSI 59), undervoltage (27), overfrequency (81O), and underfrequency (81U) protection. Each element has independently adjustable pickup and time delay settings. The relay also features a target indicator for trip indication and a manual reset.
Voltage inputs: 120/240 V AC, 50/60 Hz
Overvoltage pickup: 100–130% of nominal
Undervoltage pickup: 70–95% of nominal
Frequency pickup: 45–65 Hz
Time delays: 0.1–10 seconds per element
Accuracy: ±2% for voltage, ±0.05 Hz for frequency
Output contacts: 2 Form‑C relays, 5 A at 250 V AC
Power supply: 120/240 V AC or 125/250 V DC
Mounting: panel draw‑out case
Operating temperature: –20 °C to +65 °C
Applications
This relay is used in generator protection panels, motor control centres, and transformer feeders.
Installation and Configuration
Mounting is via a standard panel cutout. Settings are made using front‑panel controls.
Reliability
Complies with IEEE C37.90 and IEC 60255 standards.
In summary, the Basler Electric BE151G1EB6PB0N0F provides essential voltage and frequency protection.




