Phase failure undervoltage analog monitoring relay 3UG5514-1BR20

The Siemens AG successor model is 3UG5514-1BR20 against of 3UG4513-1BR20 are both electronic monitoring relays. Which is designed to detect and respond to various power quality phase failures, undervoltage, overvoltage, and phase sequence errors to showing monitors

Datasheet of Relay:

Phase Failure Detection Monitor: Detects the loss of power one or more phases in a three-phase power supply.
Phase Sequence Detection: Detects incorrect phase rotation (phase order of L1, L2, L3 is not correct).
Undervoltage Detection: Monitors voltage levels and triggers an alarm or disconnects the load if the voltage drops below a preset threshold.
Overvoltage Detection: Monitors voltage levels and triggers an alarm or disconnects the load if the voltage exceeds a preset threshold.

Successor of 3UG5514-1BR20:

Sucessor models address phase failure and undervoltage, the exact features and functionalities may vary slightly.
Phase failure undervoltage analog monitoring relay 3UG5514-1BR20 of 3UG4513-1BR20

Summery:

The official datasheets for 3UG5514-1BR20 and 3UG4513-1BR20 will provide the most detailed information on their features, specifications, and applications. Specific parameters like voltage ratings, current ratings, and response times may differ.