White Papers

FINHRM5C Passive Harmonic Filter

The new Enerdoor FINHRM5C filter is the most advanced and innovative passive harmonic filter available with excellent attenuation of current harmonic distortion and overvoltage spikes. This filter features a compact size and is one of the smallest…

CE Certification Explained

Enerdoor provides in-depth answers to all your CE Certification questions.  Our comprehensive support spans from on-site troubleshooting to managing the entire certification process. Our experts offer real-time solutions, recommendations, and…

Pre-Compliance CE Testing Saves Time and Money

CE Certification is required when shipping machines overseas and today on average 60-70 % of products fail first time EMC testing. EMC issues within an EMC lab can cost customers tens of thousands of dollars in re-design, re-manufacturing, and…

For Every Industry and Application

Enerdoor provides state-of-the-art EMC filters and power quality devices designed for every industry and application, including automated machinery, machine tools, VFDs, renewable energy, water treatment, medical equipment, recharging stations, and…

OEM Equipment Using VFDs and Servo Drives

This white paper discusses Enerdoor’s approach when customers need to select an EMI-RFI filter in conjunction with single or multiple variable frequency drives (VFDs) and servo drives. Following the VFD and servo-drive specs is not always sufficient…

Motor Protection from Overvoltage Spikes

This white paper discusses Enerdoor’s approach with customers in need of protecting motors against overvoltage spikes, widely known as dV/dt. Voltage wave reflection is a function of the voltage rise time (dV/dt) and the length of the motor cables.…

Motor Protection - The Enerdoor Snubber

This white paper discusses Enerdoor’s newest product the FIN47SNB snubber and how it benefits markets facing voltage wave reflection issues due to the use of variable frequency drives (VFDs). It can be challenging for OEMs, system integrators and…

Power Factor Correction

This white paper discusses Enerdoor’s newly developed product, the FINSVG Static Var Generator and how it benefits markets in terms of saving both money and energy using power factor correction.  Unlike capacitor banks, the FINSVG is immune to…

Invisible RF Noise and System Failures

It can be challenging for OEMs, system integrators and distributors to find “invisible noise.” Unwanted EMI and RFI noise can degrade the performance of communication systems and cause false triggering and faulty readings in sensor circuits. Such…

Ground Noise Reduction

The Ground Noise Reduction filter is a new Enerdoor product designed to improve the quality of the PE ground inside machines. Today’s industrial equipment has a combination of switching devices such as power supplies, servo drives and variable…

EMI-RFI Parallel Filters

This white paper discusses Enerdoor’s EMI-RFI Parallel Filter and how it fits into our application centered approach when introducing unique products to solve customer specific or market driven needs. For the past 25+ years, this hybrid EMI-RFI…

EMI Filters Designed for Material Handling Equipment: Carrying CE and UL Approvals

Material handling equipment is used in various markets including industrial, automotive, medical, semiconductor, oil & gas, food & beverage, and retail warehouses.  As industrial automation and material handling equipment become more computerized,…

EMI-RFI Filters and Packaging Equipment

Packaging equipment manufacturers are often challenged to achieve CE Certification, due to the fact that the drives emit high frequency noise that often causes malfunctions with sensors, encoders, HMI screens and e-stops within the system, as well…

EMI-RFI Filters and Glove Box Systems

This white paper discusses a recent Enerdoor success story using an EMI- RFI filter in conjunction with glove box systems. Glove box systems often use thermocouples in order to constantly monitor the temperature variation within the system. Today,…

Laser Equipment and CE Pre-Compliance

Laser equipment often uses AC/DC power converters in order to rectify and control the laser and are used in several different markets, including medical, machine tools, microelectronics, marking and advanced processing. Laser manufacturers are often…

Single-Phase EMI Filters Protect the Power Supply

Explore a recent success story through this enlightening white paper, showcasing the effectiveness of an EMI/RFI filter in safeguarding the power supply within an automated machine.  A power supply demands clean power to ensure optimal sensor life…

Full Page