Description
Siemens 3UG5514-1BR20 Digital Monitoring Relay Overview
The Siemens 3UG5514-1BR20 is a high-performance digital monitoring relay engineered for reliable voltage supervision in commercial HVAC, building automation, and industrial control applications. Designed as part of Siemens’ trusted 3UG55 series, this relay provides continuous monitoring of electrical parameters to protect equipment from damaging voltage conditions, helping to minimize downtime and extend the service life of connected systems.
Key Features
- Digital monitoring relay for precise voltage supervision and fault detection
- Part of the Siemens 3UG55 series — a proven platform for electrical monitoring
- Compact DIN rail-mountable design for easy panel integration
- Adjustable setpoints allow flexible configuration to match application requirements
- Clear LED status indication for quick visual diagnostics in the field
- Output relay contact for seamless integration with control circuits and alarms
- Suitable for commercial HVAC systems, building automation panels, and industrial machinery
- Robust construction built to withstand demanding electrical environments
Application Benefits
The 3UG5514-1BR20 is ideal for HVAC technicians and controls engineers who need dependable over- and under-voltage protection for motors, compressors, and other critical equipment. Its digital design ensures accurate threshold detection, reducing nuisance trips while providing genuine protection against harmful voltage deviations. The relay’s DIN rail form factor makes it a natural fit for electrical enclosures and control panels common in commercial and light industrial HVAC installations.
Why Choose Siemens Monitoring Relays
Siemens monitoring relays are globally recognized for their engineering precision, long operational life, and compatibility with a wide range of control systems. The 3UG55 series offers a scalable solution for monitoring voltage, current, and phase parameters — making it a go-to choice for contractors, system integrators, and facility managers who demand reliability.
Product Details
- Brand: Siemens
- SKU / Part Number: 3UG5514-1BR20
- Series: 3UG55
- Type: Digital Monitoring Relay
- Mounting: DIN Rail
- Application: Voltage Monitoring / Supervision
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