FAQ
Q1: What type of fan is the ZIEHL-ABEGG RH56M-6DK.6K.1R 122845, and what design features characterize its impeller?
A1: The RH56M-6DK.6K.1R 122845 is a centrifugal fan. It features a single inlet impeller with backward curved blades, constructed from aluminium and left unpainted. Backward curved blades are known for efficient airflow generation and stable performance, making this fan suitable for applications requiring controlled air movement with balanced pressure and energy use.
Q2: What are the rated electrical parameters of the RH56M-6DK.6K.1R 122845 fan, and how do they vary across different voltage and frequency settings?
A2: The fan has dual-rated parameters for 50Hz and 60Hz systems: For 3~230/400V ±10% (∆/Y connection) at 50Hz, it operates with a power input (P1) of 0.63kW, current of 2.50/1.45A (∆/Y), speed of 900 rpm, power factor (COSY) of 0.63, and a maximum temperature tolerance of 70°C. For 3~265/460V ±10% (∆/Y connection) at 60Hz, parameters shift to 1.05kW power input, 3.20/1.85A current, 1060 rpm speed, 0.72 power factor, and 70°C maximum temperature. These variations allow compatibility with diverse regional power grids.
Q3: What key installation and environmental specifications make the RH56M-6DK.6K.1R 122845 suitable for challenging conditions?
A3: This fan is designed to operate in harsh environments with a minimum operating temperature of -40°C. It supports flexible installation positions (H/Vu/Vo: horizontal/vertical upright/vertical overturned) and features a robust IP54 protection rating, shielding against dust and water splashes. The motor includes moisture and hot climate protection, while ball bearings with long-time lubrication ensure durability. These traits make it reliable in demanding settings like industrial facilities or outdoor-influenced systems.
Q4: What safety certifications and quality standards does the RH56M-6DK.6K.1R 122845 fan comply with, and what do these indicate?
A4: The fan holds UL/CSA certification (label MK137-6DK.15.U) and is recognized as a motor-recognized component, ensuring adherence to North American safety standards. It meets a thermal class of 155, meaning the motor can withstand sustained temperatures up to 155°C, and balancing standard 6.3 for low vibration. These certifications confirm reliability, safety, and performance consistency across regulated applications.
Q5: What efficiency data and operational features contribute to the RH56M-6DK.6K.1R 122845’s performance, and how do they benefit users?
A5: The fan has an ErP efficiency of ηstatA: 50.2% and meets ErP 2015 targets with Nactual = 62.5 / Ntarget = 62, ensuring energy efficiency. It includes a thermal contact for motor overheat protection, and all electrical connections use a 9x 0.82mm² (AWG18) axial supply cable (85cm) for secure power delivery. These features balance energy savings with operational safety, making it cost-effective and reliable for long-term use in ventilation or cooling systems.
