#ie5

© KSB SE & Co. KGaAFrom June 2025 the KSB’s new high-efficiency AmaRex Pro submersible motor pumps will also be available as an explosion-proof version. These pumps fulfil the stringent European Directives Atex 2014/34/EU and Atex 1999/92/EC. They are suitable for being operated in hazardous zones classified as Zone 1.To prevent ignition sources such as sparks or hot surfaces, the engineers designed AmaRex Pro in such a way that no flames or sparks can be caused outside the pump casing. In addition, the pump set is protected against the generation of internal sparks.The areas of the high-efficiency IE5 motors and the electronic control units are fitted with overheating protection equipment. Excessive heating will trigger an alarm and interrupt the power supply to the pump set.The manufacturing process of the hydraulically highly efficient pumps is checked several times a year by an ATEX inspector. This is how the manufacturer ensures that the pumps are of a high quality and produced in compliance with the Atex requirements.Given the possibility that hydrogen sulphide H2S and methane, both of which are highly flammable gases, may form in waste water, Germany and some other countries classify waste water pumping stations as a potentially explosive atmosphere. These gases may collect in the waste water pipes and collecting tanks. Contact of these gases with a source of ignition may result in an explosion.www.ksb.com Read the full article

In September 2024 the KSB Group is launching a new generation of submersible motor pumps on the market. The pumps of the type series called AmaRex Pro are driven by high-efficiency motors of class IE5. The new intelligent AmaRex Pro waste water pumps combine easy handling with high efficiency. © KSB SE & Co. KGaATheir open two-vane D-max impellers are designed for maximum hydraulic efficiency and excellent clogging resistance. An intelligent, integrated motor control system automatically detects any clogging events and initiates an independent pump deragging process. These cleaning routines help to avoid clogging and the formation of stringy masses.The intelligent high-efficiency motors enable adaptive operation, ensuring the operating point is optimally adjusted to the system curve. This also keeps wear down, reducing the need for unscheduled servicing work.The integrated motor protection monitors the temperature of motor and electronics and detects any vibrations. Customers are supplied with a pump set matching their specific operating point. Further functions integrated are soft start and soft stop of the machines.The free service software makes it easy for customers to configure the interfaces required for their control station. Fitted with white cast iron impellers, AmaRex Pro pumps are suitable for transporting abrasive and aggressive waste water.A large range of adapter claws is available to easily update existing systems with new pump sets. Another mobile app helps find the right replacement pump.www.ksb.com

NORD DRIVESYSTEMS revised its single-phase asynchronous motor The drive now corresponds to efficiency class IE2.

Delta announces the launch of their MPD Series inverter with motor, suitable for pump applications. The new series delivers the benefits of energy efficiency, intelligent water supply and ease of operation by featuring a Delta MSI class IE5 energy efficiency synchronous reluctance motor coupled with a motor-mounted Delta MP300 variable frequency drive.Available in power classes from 0.75 to 22 kW, it features the IP55 construction that keeps out dust and jetted water from all directions. The fanless drive provides low maintenance.“Whether targeting residential areas, commercial buildings, or factories, pump system manufacturers can be sure of delivering their customers´ significant energy savings. Additionally, thanks to the integrated monitoring system the drive can handle the conditions that lead to mishaps such as flooding and production delays in the pump system. With support for IEC standard motor flanges, the MPD Series is ideal for both new installations and retrofitting,” said Martien Heesterbeek, Product Manager of Industrial Automation Business Group, Delta Electronics EMEA region.Energy-efficient and fully featuredWith energy costs rising, the efficiency of water pumps during operation is of growing importance. Thanks to the use of a high-efficiency motor coupled with the latest variable frequency drive technology, the MPD Series fulfills efficiency class IES2 according to IEC 61800-9-2. The motor-mounted Delta PLC supports 14k steps to implement a range of multi-pump operating modes, such as alternating operation to facilitate maintenance and extend equipment life, constant pressure mode for energy-efficient staging, and redundancy.A sleep mode can automatically detect falling water demand, entering a hibernation mode to avoid frequent switching on and off. The integrated clean function removes foreign objects from the blades and minimizes extended periods of no operation. Scheduling can also be defined to improve overall energy efficiency. Further protection mechanisms, such as burst pipe and high/low pressure detection, limit property damage by stopping water flow and providing an alarm output. Should the water supply be cut off, the pump slows to a stop to avoid damage. Cavitation events are also monitored: If small vapor-filled cavities form in the pump, the inverter can give an immediate warning in order to increase reliability and reduce wear.System integration through smart communicationThe MPD Series offers an in-built RS-485 communication interface for easy integration into existing control systems. If required, optional communication cards are available for EtherNet/IP, DeviceNet, and PROFINET DP. An optional Bluetooth communication interface is also available for more efficient commissioning and maintenance. When coupled with the Android app, smartphone users can access operational information via a dashboard, configure pump operating parameters, and are provided with handling guidance on error messages. If desired, the motor drive, MP300, is available separately for use with alternative motors.www.deltaww.com