Phase Failure and Sequence Monitoring
Monitors three-phase systems for phase failure and incorrect phase sequence to protect machinery.
SIEMENS
SIEMENS 3UG4513-1BR20 Monitoring Relay 3-Phase Voltage 400VAC
$146.12
Available
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SIEMENS
SIEMENS 3UG4513-1BR20 Monitoring Relay 3-Phase Voltage 400VAC
PRODUCT PRICE
USD
$146.12
Available to order
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | SIEMENS |
| Model Number | 3UG4513-1BR20 |
| Product Category | Monitoring Relay |
| Product Family | SIRIUS 3UG4 |
| Product Type | Analog Phase Failure and Sequence Monitoring Relay |
| Monitoring Functions | Phase failure, phase sequence, unbalance, under voltage |
| Phase Monitoring Range | 3 x 160 to 690 V AC |
| Frequency | 50/60 Hz |
| Asymmetry Detection | 20% fixed |
| Hysteresis | 5% fixed |
| Delay Time | 0 to 20 s |
| Contacts | 2 changeover contacts (DPDT) |
| Terminal Type | Screw terminals |
| Operating Temperature | -25°C to +60°C |
| Dimensions (W x H x D) | 22.5 mm x 92 mm x 91 mm |
Key Features
Wide Voltage Range
Supports a phase monitoring range of 3 x 160 to 690 V AC for flexibility across different systems.
Adjustable Undervoltage and Delay
Provides adjustable undervoltage monitoring and a delay time of 0 to 20 s for customized protection.
DPDT Output Contacts
Equipped with 2 changeover contacts for versatile control and signaling integration.
Fixed Asymmetry Detection
Detects phase asymmetry at a fixed 20% threshold for reliable unbalance monitoring.
Applications
- Three-phase power supply monitoring
- Motor protection against phase failure
- Phase sequence verification for rotating equipment
- Undervoltage protection for industrial loads
- Unbalance monitoring in power distribution
- Machine and plant protection systems
Purchase Information
We support online purchase of the SIEMENS 3UG4513-1BR20 Monitoring Relay. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is the SIEMENS 3UG4513-1BR20? The 3UG4513-1BR20 is a SIRIUS 3UG4 analog monitoring relay for three-phase voltage systems.
What does this relay monitor? It monitors phase failure, phase sequence, unbalance, and under voltage.
What is the phase monitoring range? The monitoring range is 3 x 160 to 690 V AC at 50/60 Hz.
What is the asymmetry detection threshold? The asymmetry detection threshold is fixed at 20%.
What is the delay time range? The delay time is adjustable from 0 to 20 seconds.
What contacts does the relay have? The relay has 2 changeover contacts (DPDT).
What is the operating temperature range? The operating temperature range is -25°C to +60°C.
What terminal type does it use? It uses screw terminals for connection.
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Send us your part number and technical requirements.
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