Risk of Electrical SurgeWhy MersenAC SPDPV SPDPV FusePV Fuse Holder
Expertise in power quality
Your global electrical power partner
Mersen is a leading market player with innovative solutions in
the field of lightning and surge protection.
We design, manufacture, test and certify our products
and your systems.
Safety & reliability for surge
Bringing together the experience of the principal
international manufacturing and test standards for SPDs
(IEC and UL)
Unique expertise in the combination of SPD and fuse
technology, one of the hot topics in the SPD industry
Innovative ranges combining surge protection and
ground monitoring to provide full safety and continuity
World-class surge test platform, with laboratories holding
accreditations for both IEC/EN 61643 (Terrassa) and UL
1449 3rd ed (Newburyport)
Global manufacturing footprint of a comprehensive
range of solutions covering both IEC and UL markets
Leadership in POP (TOV) (Power-frequency Overvoltage
Protection) and combined SPD+POP devices. EN 50550.
Wide range of solutions targeting industrial, commercial
and residential applications
Risk of electrical surges
Lightning and surge protection
Electrical and electronic equipment is indispensable
in the daily activities of today’s businesses and individuals.
Such devices are connected to the electricity grid, often
exchanging data and signals through communication
lines and are usually sensitive to disturbances.
These interconnecting networks provide a propagation
path for overvoltages.
Protection against lightning and overvoltages not only
ensures the safety of people, goods and equipment,
but also ensures continuity of installation services
and meet criteria of energy efficiency.
Overvoltage protection extends the life of the equipment
by more than 20%, which significantly reduces the volume
of electronic waste. It also reduces the power consumption
of the installations, all of which translates into cost savings
and environmental sustainability.
This type of surge can have various different causes,
including atmospheric lightning directly striking the external
protection (lightning rods) on a building or transmission line
or the associated induction of electromagnetic fields
on metallic conductors. Outdoor and longer lines
are the most exposed to these fields, which often receive
high levels of induction.
It is also common for non-weather phenomena, such as
transformer centre switching or the disconnection
of motors or other inductive loads to cause voltage spikes
in adjacent lines.
The protector will discharge excess energy to earth,
thus limiting the peak voltage to a value acceptable
for the electrical equipment connected.