The 3UG4615-1CR20 is a versatile 3-phase line monitoring relay from Siemens, engineered to detect phase imbalance (≥20%), phase failure, and sequence errors. It features dual changeover contacts (2CO) and an adjustable off-delay for reliable system protection.
Phase imbalance detection: ≥20%
Monitors phase loss, sequence, and asymmetry
Adjustable off-delay: 0.1 – 20 seconds
Output Contacts: 2 CO (Changeover Contacts)
Operating voltage: 160–690V AC
DIN rail mountable
LED indicators for quick diagnostics
Durable and compact industrial design