FAQ
Q1: What design features of the ZIEHL-ABEGG RH71M-6DK.7Q.1R 205304 contribute to its airflow performance, and what type of impeller does it use?
A1: The RH71M-6DK.7Q.1R 205304 is a centrifugal fan equipped with a single inlet impeller featuring backward curved blades. The impeller is made of aluminium, a material chosen for its balance of durability and lightweight properties. Backward curved blades are known for efficient pressure generation and stable airflow, which aligns with the fan’s maximum pressure rating of 800Pa, making it suitable for applications requiring consistent air movement through resistive systems.
Q2: How do the rated electrical parameters of the RH71M-6DK.7Q.1R 205304 vary across different voltage, frequency, and connection settings?
A2: The fan has multiple rated configurations: For 3~230/400V ±10% (∆/Y connection) at 50Hz, it operates at 2.10kW power (P1), 7.70/4.50A current, 930 rpm, 0.68 power factor (COSY), and 70°C tolerance. At 60Hz with 3~230/400V ±10% (∆/Y), parameters shift to 3.10kW, 9.50/5.50A, 1030 rpm, 0.78 COSY, and 55°C. For 3~265/460V ±10% (∆/Y) at 60Hz, it reaches 3.30kW, 9.40/5.40A, 1070 rpm, 0.76 COSY, and 55°C. These variations allow compatibility with diverse regional power grids and operational demands.
Q3: What environmental and installation capabilities make the RH71M-6DK.7Q.1R 205304 suitable for harsh or versatile settings?
A3: This fan is designed to withstand extreme conditions, with a minimum operating temperature of -40°C. It supports flexible installation positions (H/Vu/Vo: horizontal/vertical upright/vertical overturned) for adaptability in different setups. Its IP54 protection rating shields against dust and water splashes, while moisture and hot climate impregnation enhances durability in humid or high-temperature environments. These features make it reliable in industrial, outdoor-influenced, or challenging climate applications.
Q4: What safety, efficiency, and quality standards does the RH71M-6DK.7Q.1R 205304 adhere to, and how do these benefit users?
A4: The fan holds UL/CSA certifications (E111399 ZA-155, MK165-6DK.24.U) for safety compliance in regulated markets. It meets ErP 2015 efficiency standards with ηstatA: 55.7% and an efficiency grade of Nactual = 62.8 (exceeding the target of 62), ensuring energy efficiency. The motor has a thermal class of 155 (withstanding up to 155°C) and features a thermal contact for overheat protection. Additionally, it achieves G 6.3 balance quality for low vibration, enhancing operational stability and longevity.
Q5: What key mechanical and construction details of the RH71M-6DK.7Q.1R 205304 support its performance and durability?
A5: The fan’s motor is painted with a 1-coat resistance class 1 finish (L-TI-0596) in RAL 7032 (pebble grey) for corrosion resistance. It uses ball bearings with long-time lubrication, reducing maintenance needs and extending service life. The electrical connection features a 9x 0.82mm² (AWG18) axial supply cable (155cm) for secure power delivery. With a weight of 45.40kg, it is robust enough for heavy-duty applications while maintaining structural integrity during operation.
