Siemens SIRIUS Phase Monitoring Relay
Model No.: 3UG4511-1AP20
✅ 3 Phase Monitoring (Phase Sequence, Phase Failure, Undervoltage)
✅ Operating Voltage Range: 160-690V AC
✅ Compact DIN Rail Mounting
✅ Reliable Protection for Motors and Equipment
✅ Used and fully tested, ready to install
