When Noise Becomes a Threat, This Filter Steps In
In a bustling industrial plant in Munich, engineers faced a nightmare: sensitive CNC machines kept malfunctioning due to electromagnetic interference (EMI). The culprit? Unfiltered power supply noise from nearby heavy equipment. Enter the EPCOS B84111-A-B120 – a three-phase power filter that became their electronic ‘noise-canceling headphones’.
With a rated current of 12A and 520V AC voltage capacity, this compact 150mm x 95mm component reduced conducted emissions by up to 40dB at 10MHz frequencies. Installation teams reported a 62% drop in EMI-related downtime within three months of deployment.
Medical Marvel: Keeping Life-Saving Equipment Safe
At a Beijing cardiac center, MRI machines were producing distorted images whenever the building’s HVAC system cycled. The B84111-A-B120’s asymmetric interference suppression technology solved this by achieving >30dB attenuation across 150kHz-30MHz ranges. Its -40°C to +100°C operating range proved crucial in equipment rooms with fluctuating temperatures.
“It’s like having an immune system for our medical electronics,” remarked Dr. Li, the facility’s chief engineer.
Smart Factories Get Smarter
A Japanese robotics manufacturer integrated these filters into their IIoT-enabled assembly lines. The results? Sensor data accuracy improved by 28%, while communication errors between PLCs dropped to 0.3% from previous 4.7%. The filter’s 4-terminal design simplified maintenance – technicians could replace units in under 90 seconds without system shutdown.
From wind turbine control systems to metro train traction drives, the B84111-A-B120 continues to prove that in our electrified world, clean power isn’t a luxury – it’s a necessity.
