
Description for 3UG4513-1BR20
The Siemens 3UG4513-1BR20 is an analog monitoring relay engineered for precise phase failure and phase sequence detection within industrial applications. Designed for use with three-phase systems, this relay supports an adjustable undervoltage range and features a fixed asymmetry threshold of 20%. Operating across 3 x 160 to 690 V AC at 50 to 60 Hz, the 3UG4513-1BR20 ensures reliable protection for machinery and production lines by monitoring voltage stability and phase integrity. The device includes a hysteresis fixed at 5% and a configurable delay time from 0 to 20 seconds, allowing for tailored response to voltage fluctuations. Two change-over contacts provide flexible integration with existing control circuits, while screw terminals support secure installation. This model is a direct successor to the 3UG3013-1B, offering enhanced performance and compatibility. The 3UG4513-1BR20 is designed to meet the demands of fast-paced industrial environments, helping to minimize downtime and protect critical infrastructure.
- Brand: Siemens
- Extensive voltage range (3 x 160–690 V AC) for versatile industrial use
- Configurable delay and robust asymmetry detection ensure operational reliability
- Successor to 3UG3013-1B for easy system upgrades
