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This document provides comprehensive operating instructions for the K3G400-HB41-01 device, a built-in fan designed for air conveyance. It emphasizes safety, proper usage, and maintenance to ensure optimal performance and longevity.
The K3G400-HB41-01 is an integrated fan unit primarily designed for conveying air according to its technical specifications. It operates within power systems with grounded neutral (TN/TT), phase conductor grounding, or IT power systems, and is compatible with network quality characteristics as per EN 50160. The device is intended for stationary systems and is equipped with various protective features to ensure safe operation. These include thermal overload protection for the electronics and motor, line undervoltage/phase failure detection, and reverse polarity/locked-rotor protection. The fan incorporates an integrated EMC filter for compliance with electromagnetic compatibility limits, which may result in reactive currents in the supply line even when the motor is at a standstill. The device also features a status relay for monitoring operational status and error messages, and a control interface with SELV potential safely disconnected from the mains.
The device is designed for use in ambient air pressure between 800 mbar and 1050 mbar and within its permitted ambient temperature range. It must always be operated with all protective devices in place, including a fixed protective device and guard grill, to prevent injury from rotating parts. The fan is a built-in component and requires installation in a system capable of withstanding the mechanical and thermal stresses it generates throughout its service life. When connecting the device, it is crucial to ensure that the power supply matches the device's voltage and that only cables designed for the indicated current level are used. Special attention must be paid to the protective earth connection, which should have a cross-section equal to or greater than the phase conductor. For installations requiring residual current devices (RCDs), only AC/DC-sensitive devices (type B or B+) with a trip threshold of 300 mA and delayed tripping (super-resistant, characteristic K) are permissible. The device's control lines should be routed separately from the supply line with a clearance of more than 10 cm to prevent malfunctions. Water ingress into the terminal box must be prevented by routing cables in a U-shaped loop or by fitting a drip edge. The fan can be controlled via PWM or analog signals, with adjustable set values and direction of action (positive heating). It also supports RS-485 MODBUS-RTU for advanced control and monitoring. The device can be enabled or disabled via a digital input, which can also trigger a software reset.
Regular maintenance is crucial for the device's safe and trouble-free operation. This includes checking the device's electrical equipment at regular intervals and immediately replacing loose connections and defective cables. A safety inspection should be performed at least every 6 months, including a visual inspection of the contact protection cover, fastening of the cables, insulation of cables, and cable glands. The device should be cleaned regularly to prevent dirt deposits, which can cause vibration and shorten service life. Cleaning should be done with a soft cloth and mild cleaning agents, avoiding high-pressure cleaners, acids, alkalis, or solvent-based agents. If cleaning with compressed air, ensure it is dry and oil-free. Vibration testing is recommended every 6 months, measuring vibration severity on the motor's fastening diameter. If vibration levels exceed 3.5 mm/s, the impeller should be cleaned or replaced. The ball bearings are designed for a service life of 40,000 hours and do not require maintenance. The device is designed for easy disposal, with components made of steel, copper, aluminum, and plastic, which are generally recyclable. Specific guidelines for recycling and disposal of various materials, including ferrous and non-ferrous metals, insulating materials, cables, and electronic scrap, are provided. Any modifications, additions, or conversions to the device must be approved by ebm-papst to maintain safety and warranty validity.
General| Type | Axial fan |
|---|---|
| Voltage | 380-480 V |
| Power Consumption | 0.45 kW |
| Airflow | Max. 2400 m³/h |
| Speed | 1400 rpm |
| Noise Level | 75 dB(A) |
| Motor technology | EC motor |
| Impeller diameter | 400 mm |
| Type of protection | IP54 |
| Housing material | Steel |
