3UG4512-2AR20
The Siemens SIRIUS 3UG4512-2AR20 analog phase sequence monitoring relay monitors three-phase phase loss and phase sequence errors. It has a monitoring range of 3 x AC160~690V, one set of switching contacts (SPDT) for output, spring-loaded terminals for quick wiring, and a narrow 22.5mm design suitable for distribution panels with limited space.
Product Positioning
The 3UG4512-2AR20 is a Siemens SIRIUS series analog phase sequence monitoring relay. It has the same monitoring function as the 2BR20, but the difference is that it only provides one set of switching contacts, making it suitable for applications that only require a single output signal.
Core Product Advantages and Features
Single-group switching contact output
It provides one set of SPDT switching contacts, simplifying output configuration and reducing panel wiring complexity.
Spring-loaded terminal design
It adopts spring-type terminal wiring, eliminating the need for screw fastening and making on-site installation and wiring faster.
Real-time monitoring of phase sequence loss
Continuously monitor three-phase phase loss and phase sequence errors to detect abnormal power supply conditions as early as possible.
Compact 22.5mm size
The 22.5mm standard width design makes it easy to embed into existing DIN rail distribution panels.
Recommend
Read More
3UG4512-2BR20
The Siemens SIRIUS 3UG4512-2BR20 analog phase sequence monitoring relay is designed to monitor three-phase phase loss and phase sequence errors. It has a monitoring range of 3 x AC160~690V, a zero-delay design for rapid response, and two sets of switching contacts with spring terminals, making it suitable for basic protection applications in general motor circuits.
Read More
3UG4512-1BR20
The Siemens SIRIUS 3UG4512-1BR20 analog phase sequence monitoring relay monitors three-phase phase loss and phase sequence errors. It has a monitoring range of 3 x AC160~690V, two sets of switching contacts with screw terminals, and robust and durable wiring. It is a common replacement and upgrade option for existing older models.
Read More
3UG4512-1AR20
The Siemens SIRIUS 3UG4512-1AR20 analog phase sequence monitoring relay monitors three-phase phase loss and phase sequence errors, with a monitoring range of 3 x AC160~690V. It features an automatic reset function, a set of switching contacts with screw terminals, and can automatically resume operation after the abnormality is cleared.