Siemens
Siemens 3UG4511-1AQ20 Analog Phase Sequence Monitoring Relay
Siemens 3UG4511-1AQ20 Analog Phase Sequence Monitoring Relay
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12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
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Response within 1 business hour
12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Phase sequence recognition
Phase failure detection
690 VAC insulation voltage
450 ms response time
10,000,000 operating cycles
Product description
The Siemens 3UG4511-1AQ20 is an analog monitoring relay designed for phase sequence monitoring in higher voltage applications. It operates within a voltage range of 3 x 420 to 690V AC and features one changeover contact.
This relay is crucial for protecting three-phase equipment from incorrect phase rotation and phase failure. Its wider voltage range makes it suitable for demanding industrial environments and higher voltage distribution networks.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3UG4511-1AQ20. We are dedicated to providing high-quality industrial automation components and reliable service.
Technical specifications
| Type | Analog Monitoring Relay |
| Function | Phase Sequence Monitoring |
| Voltage | 3 x 420-690 V AC |
| Frequency | 50/60 Hz |
| Contacts | 1 Changeover |
| Terminals | Screw |
Common applications
High voltage three-phase systems
Industrial power distribution
Large motor protection
Machine control
Power quality monitoring
Compatible systems
Higher voltage three-phase power systems
Also known as
Siemens 3UG4511 Phase Relay
Analog Phase Monitor 3UG4511-1AQ20
Siemens High Voltage Phase Monitor
Replaces / compatible with
This is a product phase-out. The preferred successor is 3UG5511-1AR20.
Technical note
Expert tip
This relay is suitable for higher voltage three-phase systems and requires careful installation to ensure safety and proper function.What happens next?
1
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2
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3
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Frequently asked questions
What is the voltage range for the Siemens 3UG4511-1AQ20 phase sequence monitoring relay?
The Siemens 3UG4511-1AQ20 is designed for phase sequence monitoring in three-phase systems operating between 420 and 690V AC. This higher voltage capability makes it suitable for specific industrial applications.