As industrial automation systems become more connected and sophisticated, the electrical components inside industrial control panels are increasingly vulnerable to transient overvoltages.
PLCs, motor control centers, industrial PCs, Ethernet switches, power supplies, and other sensitive electronics can all be damaged or gradually degraded by electrical surges. And while a surge event may last only microseconds, its effects can lead to equipment failure, unplanned downtime, maintenance costs, and lost production.
For OEMs, machine builders, and industrial operators, effective surge protection goes beyond selecting an individual component. The Surge Protective Device (SPD) must be appropriate for the application, properly incorporated into the electrical design, and installed as part of a compliant and reliable control-panel assembly.
That is where the combination of CITEL surge protection technology and Simcona’s component distribution and control panel manufacturing capabilities can support a more complete solution.
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What Causes Electrical Surges in Industrial Environments?
Lightning may be the most recognizable source of an electrical surge, but it is far from the only one.
In industrial facilities, transient overvoltages can also be created by everyday switching activity, including:
These events can introduce short-duration voltage spikes into an electrical system and expose sensitive automation equipment to electrical stress.
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What Happens When Industrial Equipment Is Not Protected?
Not every electrical surge results in an immediate, obvious failure.
A severe event may cause catastrophic damage, but smaller, repeated transient overvoltages can gradually degrade electronic components over time. The result may be reduced reliability long before the underlying cause becomes apparent.
Potential consequences include:
For manufacturers and facility operators focused on uptime, that makes surge protection part of a broader reliability strategy — particularly when sensitive electronics are concentrated inside an industrial control panel.
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What Is a Surge Protective Device?
A Surge Protective Device is designed to protect electrical and electronic equipment against transient overvoltages.
When voltage exceeds the SPD's protection threshold, the device diverts excess energy away from sensitive equipment. Once the transient event has passed, the SPD returns to normal operation.
SPDs are categorized according to where they are installed within the electrical distribution system, including Type 1, Type 2, and Type 3 devices. The NEC NFPA 70 also requires applicable SPDs to be UL 1449 Listed.
CITEL manufactures surge protection solutions for AC power, DC power, dataline, radiofrequency, and industrial control-panel applications, giving engineers and panel builders options for protecting multiple parts of an industrial electrical system.
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How Do SPDs Fit Into a UL 508A Industrial Control Panel?
Selecting an SPD is only one part of the process. For a UL 508A industrial control panel, the device also needs to be correctly specified and incorporated into the finished assembly.
UL 508A recognizes SPDs as control-panel components and includes considerations such as:
These considerations illustrate why surge protection should be evaluated as part of the complete control-panel design and build, rather than as an isolated component added at the end of a project.
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From the SPD to the Finished Panel: Where Simcona Fits
A reliable control panel depends on both the components inside it and the processes used to source, assemble, document, and test them.
Simcona supports customers on both sides of that equation.
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Sourcing Surge Protection and Other Panel Components
Through its industrial component distribution and supply-chain services, Simcona helps customers source the components required for electrical and mechanical assemblies.
For control-panel programs, that can mean coordinating the SPD alongside the other components on the bill of materials rather than treating surge protection as a separate purchasing exercise.
Simcona's procurement capabilities include an extensive supplier network, kitting and inventory-management support, and domestic and global sourcing strategies designed to reduce component-related delays.
With CITEL represented within Simcona's manufacturer network, customers can bring surge protection into the same broader sourcing conversation as the rest of their industrial control-panel requirements.
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Building the Complete UL 508A Control Panel
For customers that need more than component sourcing, Simcona also manufactures industrial control panels.
Simcona's manufacturing capabilities include build-to-print production, UL 508A and UL 698 certified panel building, prototyping and new-product introduction support, engineering and documentation assistance, scalable production, and full build traceability.
This creates an opportunity to consider surge protection during the manufacturing process itself — helping ensure the specified SPD is integrated into the panel according to the design, applicable standards, and manufacturer's installation requirements.
Simcona also performs functional testing on every panel prior to shipment, along with continuity and compliance checks against customer requirements.
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A More Complete Approach to Control-Panel Protection
Surge protection is a relatively small part of an industrial control panel, but it can play an important role in protecting the much larger investment connected to it.
Properly selected and installed SPDs can contribute to:
The best results come from considering those devices as part of the complete electrical system.
CITEL provides the surge protection technology. Simcona can help source the components and manufacture the industrial control panel they become part of.
For OEMs, machine builders, and industrial organizations, that creates a more streamlined path from component selection to a completed UL 508A control-panel assembly.
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Why Partner with Simcona?
At Simcona, we support control panel manufacturing through dependable component sourcing, inventory management, and supply chain expertise. Our team works closely with customers to ensure the right components are available at the right time, helping prevent delays, redesigns, and production disruptions.
Need help sourcing surge protection components or building your next industrial control panel? Contact Simcona to discuss your application, component requirements, or control-panel manufacturing program.
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