Basler Electric BE3‑49R‑5I5A1 Temperature Relay (9320500101)
The Basler Electric BE3‑49R‑5I5A1 (catalog number 9320500101) is a temperature relay designed to protect electrical equipment such as motors, generators, and transformers from overheating. It monitors one or more RTD (resistance temperature detector) inputs and provides alarm and trip outputs when preset temperature thresholds are exceeded.
This relay uses digital signal processing to accurately measure temperature and compensate for lead resistance, ensuring reliable protection in critical applications. The BE3‑49R is configurable for various RTD types, including platinum and copper, making it versatile for different installations.
Key Features
Up to 5 RTD inputs (configurable)
Adjustable alarm and trip setpoints
Digital display for real‑time temperature readings
Lead‑resistance compensation
Two independent output relays
Modbus RTU communication option
Technical Specifications
RTD input: Pt100, Pt1000, Cu10; temperature range: -50°C to +250°C; accuracy: ±1°C; power supply: 24–240 VDC/AC; outputs: 2 x SPDT relays rated 5A at 250 VAC.
Applications
Used in motor control centres, generator stator winding monitoring, transformer oil temperature monitoring, and bearing temperature protection. The BE3‑49R helps prevent catastrophic failures by providing early warning of abnormal temperature rise.
Installation and Configuration
Mounting is via standard DIN rail or panel. Configuration is done through the front‑panel menu, where users set RTD type, alarm/trip levels, and hysteresis. The relay also supports remote configuration via communication protocols.
Reliability and Maintenance
With robust design and self‑checking features, the BE3‑49R ensures long‑term reliability. Regular calibration checks are recommended to maintain accuracy. Basler Electric’s quality manufacturing guarantees consistent performance.
Why Choose the BE3‑49R?
This temperature relay offers a cost‑effective solution for thermal protection, combining advanced functionality with ease of use. Its compatibility with multiple RTD types and communication options makes it suitable for both new and retrofit projects.
In conclusion, the Basler Electric BE3‑49R‑5I5A1 is an essential device for safeguarding valuable electrical equipment from thermal damage, ensuring uninterrupted operation and extended asset life.
