How EMC Shielding Works – Protect Your Equipment
Skydda din installation mot elektromagnetiska störningar med rätt EMC-lösningar
Electromagnetic interference can cause downtime, data errors, and costly interruptions. EMC shielding with shield clamps, EMC cable glands and EMC-genomföringar provides control and safety.
Why is EMC Important?
- Electromagnetic interference (EMI) can arise from motors, frequency converters, radio signals, and high-frequency components.
- Interference can lead to downtime, data errors, or reduced service life of electronics.
- EMC (Electromagnetic Compatibility means that equipment functions without disturbing or being disturbed by other electronics.
How Do EMC Cable Glands Work?
- Create a 360° contact between the cable screen and the box
- Divert interference to ground, e.g via bus bars
- Combine sealing (IP65–IP68) and strain relief with shielding
When Should You Choose EMC Glands?
- In installations with high electromagnetic exposure
- When working with sensitive electronics in automation, telecom, medical technology, or energy
- When both IP-rated sealing and EMC shielding are required
Examples from Bimed
- Standard EMC glands in nickel-plated brass
- EMC versions in stainless steel for tough environments
- Special inserts for different cable diameters
- Compatible with accessories such as reducers, locknuts, and seals
Comparison Table
Tabellen nedan visar en översikt över olika EMC-lösningar, deras funktion, tillämpliga standarder och typiska användningsområden:
| Product | Function | Standard | Exempel |
|---|---|---|---|
| Cable Clamps | 360° skärmavlastning | EN 55011 | Automation & Robotics |
| EMC cable glands | Täthet + avskärmning | EN 62444 | Telekom |
| EMC-genomföringar | Multiförskruvning | IEC 61000 | Energy |
Summary
- Cable Clamps används där kablar snabbt och enkelt behöver jordas med effektiv skärmavlastning.
- EMC cable glands är det bästa valet när du behöver både tätning (IP65–IP68) och EMC-avskärmning i apparatskåp eller kapslingar.
- EMC-genomföringar passar installationer med många kablar och ger en flexibel, tät och störningsfri genomföring.
More information
Standards
- EN 55011 – industristörningar
- EN 61000-6-2 – immunitet
- EN 62444 – kabelinföringar
Industry Use Cases
- Automation: frekvensomriktare
- Telekom basstationer
- Energi: elnät, höga störnivåer
FAQ – Vanliga frågor om EMC-avskärmning
What is the difference between standard and EMC cable glands?
EMC glands have a conductive contact surface that connects the cable screen to the box and protects against interference.
Do EMC glands provide the same sealing as standard ones?
Yes, they often achieve IP65–IP68 while providing shielding.
Do I need EMC glands in every installation?
No, they are mainly needed where there is a risk of electromagnetic interference.
Can I use EMC cable glands in plastic enclosures?
Yes, but shielding works best in metal enclosures or when the cable shield is connected to ground via a bus bar.
What accessories are available?
Reducing inserts, seals, nuts and blind plugs kan användas även med EMC-modeller.
Behöver du hjälp att välja EMC-avskärmning?
Our experts will help you find the right cabinet for your application.
