European Standard for power frequency overvoltage protection (POP)

Product catalog summary

Introduction to EN 50550:
EN 50550 is a European standard published on March 16, 2011, focusing on Power Frequency Overvoltage Protectors (POP) for household and similar applications. It addresses the issue of power frequency overvoltages caused by unbalanced phases, often due to the breakage of the neutral conductor in a three-phase power supply, which can lead to reduced equipment life, destruction, or fire.

Objective and Scope:
The standard aims to mitigate the effects of power frequency overvoltages between phase and neutral conductors. It applies to POPs used in household and similar settings.

Key Specifications:

Progressive Voltage/Time tripping curve: Ensures quick tripping for severe disturbances while avoiding unnecessary activation for minor voltage increases.
Common manufacturer requirement for POP and MCB.
Prohibition on using earth leakage or current differential as operating principles.

Benefits of EN 50550:

Ensures high standards of quality and reliability.
Guarantees effective operation and protection against power frequency overvoltages.
Prevents untimely tripping.

Impact and Adoption:
The standard supports mandatory technical specifications for power generation companies in Spain and encourages standardization across Europe.

Cirprotec's Adaptation:
Cirprotec has adapted its range of products to comply with EN 50550, offering comprehensive protection solutions such as the V-CHECK series, which includes features like auto reclosure and high discharge capacity for various applications.

Product Range:

V-CHECK MB: POP Protector with MCB for transient overvoltage protection.
V-CHECK MPT: Ideal for overhead electrification and common areas.
V-CHECK MR: Ensures maximum service continuity.
V-CHECK 4R, 4RPT, 4RC: High discharge capacity protectors for industrial facilities and public lighting systems.

Conclusion:
EN 50550 sets a benchmark for quality and safety in power frequency overvoltage protection. Cirprotec offers specialized solutions compliant with this standard, ensuring reliable protection for various applications.

Catalog excerpts

European Standard for power frequency overvoltage protection (POP)-1

Cirprotec EN 50550 European Standard Power Frequency Overvoltage Protectors (POP) Product standarisation

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European Standard for power frequency overvoltage protection (POP)-2

EN 50550. Power Frequency Overvoltage Protectors (POP) What are power frequency overvoltages? These are increases of hundreds of volts for an indefinite period caused by unbalanced phases. They are usually caused by breakage of the neutral conductor in the three phase power supply. This results in reduced receptor-life, their immediate destruction or even fire. Unbalanced three-phase system What does the EN 50550 standard say? EN 50550 “Power frequency overvoltage protective devices for household and similar applications (POP)” published on March 16, 2011, is the first standard for power frequency...

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European Standard for power frequency overvoltage protection (POP)-3

Cirprotec has the complete power frequency overvoltage protection range The Cirprotec range has been adapted and tested according to the new EN 50550 standard. Combined protection (SPD + POP) V-CHECK MPT Protector equipped with MCB, ideal for overhead electrification facilities and common areas. Protector equipped with MCB, ideal for facilities requir ing maximum ser v ice continuity. Incluye IGA Supplied w/ MCB Auto reclosure Protector with high discharge capacity (SPD) for MCCB, with undervoltage release actuation. Ideal for industrial facilities and on-site p panels. Protector with high discharge...

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European Standard for power frequency overvoltage protection (POP)-4

Demand products which comply with EN50550 for quality and safety. Trust a specialist. Trust Cirprotec Specialists in comprehensive lightning and overvoltage protection. Specic solutions for all types of application. For more information contact our technical sales department or go to www.cirprotec.com/products. Surge Protection Power Frequency Overvoltage Protectors (POP) Surge protection for telecom and signalling networks External lightning protection systems Monitoring of grounding systems Insulation monitoring Beacon systems Cirprotec Distributor / Representative:

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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