Siemens
Siemens 3UG4511-1AP20 Analog Phase Sequence Monitoring Relay
Siemens 3UG4511-1AP20 Analog Phase Sequence Monitoring Relay
● In Stock
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
Auto-reset function
6 kV surge voltage resistance
450 ms response time
Product description
The Siemens 3UG4511-1AP20 is an analog monitoring relay designed for phase sequence monitoring. It operates within a voltage range of 3 x 320 to 500V AC and features one changeover contact.
This relay is essential for protecting three-phase systems from incorrect phase rotation, which can cause damage to motors and other equipment. It is commonly used in industrial automation, motor control, and power distribution systems.
Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3UG4511-1AP20. We provide reliable industrial automation components with a focus on quality and customer satisfaction.
Technical specifications
| Type | Analog Monitoring Relay |
| Function | Phase Sequence Monitoring |
| Voltage | 3 x 320-500 V AC |
| Frequency | 50/60 Hz |
| Contacts | 1 Changeover |
| Terminals | Screw |
Common applications
Three-phase motor protection
Industrial automation
Power distribution
Machine control
HVAC systems
Compatible systems
Three-phase power systems
Also known as
Siemens 3UG4511 Phase Relay
Analog Phase Monitor 3UG4511-1AP20
Siemens 3-phase sequence monitor
Replaces / compatible with
This is a product phase-out. The preferred successor is 3UG5511-1AR20.
Technical note
Expert tip
Ensure correct wiring of the three phases to the input terminals for accurate phase sequence detection.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the voltage range for phase sequence monitoring on the Siemens 3UG4511-1AP20?
The Siemens 3UG4511-1AP20 monitors three-phase systems within a voltage range of 320 to 500V AC. It ensures correct phase sequence for reliable operation of connected equipment.