CSA+UL双认证！北美专用网络电力仪表

Market Background - The electric meter serves as a "bridge" between power supply and users, ensuring accurate measurement and compliance with safety standards, particularly for companies targeting the North American market [1] - A case study highlighted the importance of UL certification, where a household appliance company faced significant costs and missed sales opportunities due to non-compliant meters [1] Overview of APM521 Network Power Meter - The APM521 network power meter is designed according to IEC international standards, featuring comprehensive functions such as full electrical quantity measurement, energy statistics, power quality analysis, event logging, and network communication capabilities [2][3] - It is primarily utilized for monitoring power supply quality in power grids and includes various modules for flexible electrical measurement and monitoring [2][3] Functionality - The meter provides a range of electrical measurements, including four-quadrant active and reactive energy, phase energy, apparent energy, and real-time demand measurements [5] - Communication protocols supported include Modbus-RTU and Modbus-TCP, with an accuracy of ±0.2% [5] Product Certification - The CSA (Canadian Standards Association) is the largest safety certification body in Canada, testing products according to UL standards for compliance in the US and Canada [8] - The APM521 is currently undergoing CSA certification to meet UL standards, ensuring compliance for both the US and Canadian markets [9] Additional Information - The APM521 model has various configurations, with differences primarily in communication functions [14] - The equipment is designed for continuous operation under specific environmental conditions, including a temperature range of -40 to 70°C and humidity levels of up to 95% RH [14] - The company is actively promoting overseas business and renewable energy initiatives, launching a series of smart meters that meet the demands of the European and American markets [19]