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Siemens 3UG4512-1AR20
Condition: New
Warranty: 1 Year

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Siemens 3UG4512-1AR20 | SIRIUS Phase Failure and Sequence Monitoring Relay
Overview:
The Siemens 3UG4512-1AR20 is a SIRIUS series monitoring relay engineered to oversee phase failure and sequence in three-phase AC systems. Operating within a voltage range of 160 to 690 V AC at 50 to 60 Hz, this relay is essential for safeguarding motors and other critical equipment from phase-related issues. Its design includes a single changeover contact and screw terminal connections, facilitating straightforward integration into existing control panels.
Key Features:
- Phase Monitoring: Detects incorrect phase sequences and phase failures, preventing potential equipment damage.
- Wide Voltage Range: Accommodates systems operating between 160 to 690 V AC, offering versatility across various applications.
- Compact Design: Features a 22.5 mm width, allowing for space-efficient installation in control cabinets.
- User-Friendly Interface: Equipped with an analog display for real-time monitoring and diagnostics.
- Reliable Contacts: Includes one changeover contact rated for 3 A at 400 V AC, ensuring dependable switching performance.
Technical Specifications:
- Product Type: Phase Failure and Sequence Monitoring Relay
- Part Number: 3UG4512-1AR20
- Voltage Range: 160–690 V AC
- Frequency: 50–60 Hz
- Output Contact: 1 Changeover (SPDT)
- Contact Rating: 3 A at 400 V AC
- Connection Type: Screw Terminals
- Width: 22.5 mm
- Mounting: DIN Rail
- Operating Temperature: -25°C to +60°C
- Protection Rating: IP20
Applications:
- Industrial Automation: Protects motors and machinery from phase loss or incorrect wiring sequences.
- Pumping Systems: Ensures pumps operate with the correct phase sequence, preventing mechanical damage.
- HVAC Systems: Maintains proper operation of compressors and fans by monitoring phase integrity.
- Material Handling: Safeguards conveyors and hoists from phase-related malfunctions.
Warranty Policy
Our warranty policy is designed to provide peace of mind and confidence in your purchases.
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New
1-year
This warranty covers manufacturing defects and performance issues, ensuring that you can enjoy your product worry-free.
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Our priority is to ensure your satisfaction and the quality of our products and services. If you have any questions about our warranty policy, please do not hesitate to contact our customer service team.
sales@ddpartssolution.com
📞 +1 (689) 275-3558
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NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply