Modern businesses rely on sensitive electronic equipment - from computers and building management systems to industrial drives and automated machinery. But one unexpected mains-borne voltage spike can bring everything to a halt, damaging your equipment and costing thousands in downtime.
At Power Capacitors, we deliver trusted, UK-made surge protection devices designed to keep your operations safe, stable, and uninterrupted. Our PowerSoak Surge Arrestor offers an easy-to-integrate, high-performance solution to protect your electrical systems where it matters most.
What is surge protection?
A surge protection device (SPD) is your first line of defense against sudden electrical surges and voltage spikes that can damage sensitive equipment. These power disturbances can occur due to:
-
LightningLightning strikes
near your power
network
-
ElectricitySwitching operations
within the electricity
grid
-
FaultsFaults elsewhere
in your electrical
system
Left unprotected, these spikes can lead to equipment failure, operational downtime, and costly repairs.
the main power
supply entry
the building's
distribution
to the sensitive
devices
cost-effective solution. That's where PowerSoak comes in.
PowerSoak -
a single solution
PowerSoak Surge Arrestors are industrial grade surge protection devices designed and manufactured in-house, right here in the UK.
Built by our skilled power quality team with over 130 years of power quality expertise, they provide robust, reliable protection without the complexity of multi-layer SPD installations.
Key Features
3-phase Type 2 suppression module compliant with EN 61643-11.
Voltage protection level below 1kV, 20kA nominal discharge current.
Short-circuit withstand of 50kArms
Suitable for TNC and TNS electrical systems, available in both 3-wire and 4-wire models.
Housed in a robust steel enclosure for long-lasting reliability.
equipment and maintain smooth, uninterrupted operations.
Why choose us for surge protection?
For over 50 years, Power Capacitors has been a leading name in UK power quality solutions. We’re not just another supplier – we’re a trusted partner committed to helping businesses safeguard their electrical infrastructure.
Here's what sets us apart
-
Free expert
consultations
To assess your
surge protection
needs.
-
Proven
reliability
UK manufacturing
for assured
quality.
-
Trusted
Design
With thousands
of units installed
nationwide.
-
Professional
service
From a team that
understands industrial
power systems.
FAQs
A surge protection device (SPD) is a piece of electrical safety equipment that safeguards your power system and sensitive electronics from damaging voltage spikes or power surges. Events such as lightning strikes, grid switching, or electrical faults can cause sudden overvoltages that damage machinery, IT systems, or building management controls. Installing a high-quality surge arrestor like PowerSoak helps prevent costly downtime and equipment replacement.
Yes, most businesses rely on electronic control systems, computers, and automated machinery that are highly sensitive to voltage fluctuations. A single mains-borne surge can cause data loss, breakdowns, or complete system shutdowns. Our PowerSoak industrial surge protector is a cost-effective solution that reduces these risks and helps ensure business continuity.
PowerSoak is designed as a robust, Type 2 surge protection solution that’s easy to integrate into existing electrical distribution networks. It offers <1kV protection level, 20kA nominal discharge current, and 50kArms short-circuit withstand, providing reliable protection for critical systems. Unlike many imported units, PowerSoak is manufactured in the UK by Power Capacitors Ltd, backed by over 50 years of expertise in power quality solutions.
Yes. The PowerSoak SPD is available in 3-wire and 4-wire models, making it suitable for both TNC and TNS earthing systems commonly used in UK and European industrial and commercial installations. Our specialists can recommend the best surge protection setup for your building or site.
In most cases, installing a PowerSoak Type 2 surge protection device provides strong, practical protection without requiring multiple devices. However, in environments with high exposure to lightning or highly sensitive electronics, a coordinated surge protection strategy (Types 1, 2, and 3) may be recommended. We offer free surge protection consultations to help you design the right solution for your facility.
Get protected today
The cost of surge protection is small compared to the potential loss from an unprotected power spike. With PowerSoak, you get lasting peace of mind.
What our customers say
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