Basler BE1-25 Sync‑Check Relay

The Basler BE1-25 (style M1E A7P A5N3F) is a sync‑check relay used for generator paralleling. It monitors voltage, frequency, and phase angle difference between the generator and the bus, and issues a close permit when conditions are within tolerance. This ensures safe and reliable synchronization.

The relay features adjustable thresholds and a front‑panel display. It is suitable for utility and industrial paralleling applications.

Technical Specifications

• Model: BE1-25 (M1E A7P A5N3F)

• Function: Sync‑check / synchronizing

• Voltage inputs: Generator and bus (0‑600 V)

• Frequency difference: 0.05‑1.00 Hz adjustable

• Voltage difference: 0.5‑20 V adjustable

• Phase angle: ±1° to ±20°

• Output: 2 form C (close permit and alarm)

• Power supply: 24‑240 V AC/DC

• Operating temperature: -40°C to +70°C

• Certifications: CE, UL, RoHS

Functional Features

• Accurate sync check.

• Adjustable windows.

• Secure close permit.

Typical Applications

• Generator paralleling with grid.

• Multiple generator sets.

Installation

Panel mount, connect voltage inputs and outputs.

Conclusion

BE1-25 ensures safe synchronization of generators.