Features:
Intelligent Protection and Communication: The ETU37WT/38WT supports adjustable protection settings and fault memory. Modbus RTU enables remote monitoring, parameter setting, and energy data acquisition, improving operation and maintenance efficiency.
Safety, Reliability, and Low Power Consumption: Maximum breaking capacity of 66kA, highly efficient arc extinguishing; cabinet door sealing frame enhances protection; mechanical closing lock prevents misoperation; low power consumption design adapts to spaces with limited ventilation.
Modular Design and Convenient Maintenance: Main contacts and trip units can be replaced individually; universal accessories reduce spare parts costs; pull-out type with standard lock; mechanical closing readiness indicator facilitates fault diagnosis (Siemens).
Flexible Installation and Operation: Fixed/pull-out type convertible; screwless design ensures safe installation; clear opening/closing indicators and auxiliary signal contacts facilitate status monitoring.
Strong Application Adaptability: Supports incoming line, bus tie, and feeder protection; adaptable to loads such as motors, transformers, and capacitors; the ETU meets diverse protection requirements.
Typical Applications:
Industrial Sector: Main incoming lines, busbar tie-ins, large motor control circuits, and transformer/capacitor bank protection for small and medium-sized factories; compatible with transformer systems of 2500kVA and below.
Public and Commercial Buildings and Infrastructure: Building trunk lines, data center UPS input/output, power circuits for air conditioning/water pumps, etc. Withdrawable design for easy maintenance; communication functions compatible with energy management systems.
Energy and Municipal: Output of photovoltaic/energy storage inverters, power distribution for charging piles, municipal pump stations/lighting; ETU adapts to different protection requirements; Modbus supports remote monitoring.
