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UL Certificate Panel Meter

APM521

Multi-Function/Modbus_RTU(RS485)、Modbus_TCP(Ethernet) Communication

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DESCRIPTION

Description

The APM521 network power meter (hereinafter referred to as the meter) is designed according to IEC international standards, featuring full electrical quantity measurement, energy statistics, power quality analysis, event logging functions, and network communication capabilities. It is primarily used for comprehensive monitoring of power supply quality in power grids. This series of meters is equipped with DI/DO modules and AO modules that offer a wealth of functions, allowing for flexible implementation of full electrical quantity measurement and monitoring of switch statuses in electrical circuits.

Installation: Easy Installation	Service: 24 Hour

Certificate: UL	Quality: Quality Assurance

Parameters

Size

Installation dimension drawing for embedded installation of APM521

Installation dimension drawing for rail-mounted installation of APM521

Wiring Diagram

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Interface Descriptions

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633 APM521多功能仪表安装使用说明书V1.0 20250922.pdf

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Power Meter APM521 UL CAS 证书 Project80254482_Certificate_of_compliance.pdf

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UL Certificate Panel Meter

Product Summary:

Used for connection between pipe ends; Also useful is a flange on the inlet and outlet of the equipment, used for connecting between two devices, such as a gearbox flange. Flange connection or flange joint refers to a detachable connection consisting of flanges, gaskets, and bolts connected to each other as a combination sealing structure. Pipeline flange refers to the flange used for piping in pipeline devices, and when used on equipment, it refers to the inlet and outlet flanges of the equipment. There are holes on the flange, and bolts make the two flanges tightly connected. Seal the flanges with gaskets.

Classification：Butt welded pipe fittings

Keywords: Butt welded pipe parts

产品详细

There are GB series (national standard), JB series (mechanical department), HG series (chemical department), ASME B16.5 (American standard), BS4504 (British standard), DIN (German standard), JIS (Japanese standard).

Advantages:

The on-site installation is more convenient, and the process of welding seam rubbing can be omitted

Disadvantages:

The neck height of the flat welded flange with a neck is relatively low, which improves the stiffness and load-bearing capacity of the flange. Compared with butt welded flanges, the welding workload is large, the consumption of welding rods is high, and it cannot withstand high temperature and pressure, repeated bending, and temperature fluctuations.

The connection is not easily deformed, with good sealing effect, and is widely used. It is suitable for pipelines with significant temperature or pressure fluctuations, as well as pipelines with high, high, and low temperatures. It is also used for transporting expensive media, flammable and explosive media, and toxic gases