How to Protect Your PLC from Power Surges and ESD
2025-10-11
.gtr-container-f7h2k9 {
font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif;
color: #333;
line-height: 1.6;
padding: 15px;
max-width: 100%;
box-sizing: border-box;
overflow-wrap: break-word;
}
.gtr-container-f7h2k9 p {
margin: 14px 0;
font-size: 14px;
text-align: left;
}
.gtr-container-f7h2k9 strong {
font-weight: bold;
}
.gtr-container-f7h2k9 .gtr-title {
font-size: 18px;
font-weight: bold;
margin-bottom: 18px;
text-align: left;
}
.gtr-container-f7h2k9 .gtr-subtitle {
font-size: 16px;
font-weight: bold;
margin-top: 20px;
margin-bottom: 10px;
text-align: left;
}
.gtr-container-f7h2k9 ol {
list-style: none;
padding-left: 25px;
margin: 16px 0;
counter-reset: list-item;
}
.gtr-container-f7h2k9 ol li {
list-style: none !important;
position: relative;
margin-bottom: 8px;
padding-left: 25px;
font-size: 14px;
text-align: left;
display: list-item;
}
.gtr-container-f7h2k9 ol li::before {
content: counter(list-item) "." !important;
position: absolute !important;
left: 0 !important;
font-weight: bold;
color: #0056b3;
width: 20px;
text-align: right;
}
.gtr-container-f7h2k9 ol li p {
margin: 0 !important;
font-size: 14px;
text-align: left;
}
@media (min-width: 768px) {
.gtr-container-f7h2k9 {
padding: 25px;
max-width: 800px;
margin: 0 auto;
}
.gtr-container-f7h2k9 .gtr-title {
font-size: 20px;
}
.gtr-container-f7h2k9 .gtr-subtitle {
font-size: 18px;
}
}
How to Protect Your PLC from Power Surges and ESD
PLCs are vital but vulnerable to electrical threats. Power surges (from lightning or motors) can cause immediate damage, while Electrostatic Discharge (ESD) from simple contact can degrade electronics over time. A layered protection strategy is essential.
Key Protection Layers with Phoenix Contact:
Main AC Power: Install a VAL-US Series surge protector at the panel entrance to stop high-energy surges.
DC & I/O Circuits: Use compact PT-IQ Series protectors on DIN rails to safeguard 24V power and sensor/actuator lines.
Data Lines: Protect sensitive communication ports (Ethernet, PROFIBUS) with TRABTECH line protectors.
Critical Foundation: Ensure a solid, low-impedance ground for all protectors and use shielded cables connected properly. This defense system is a small investment that prevents costly downtime and equipment failure.
View More
How to Choose the Right Terminal Block for Your Control Panel
2025-10-11
.gtr-container-xyz789 {
font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif;
color: #333;
line-height: 1.6;
padding: 16px;
max-width: 100%;
box-sizing: border-box;
overflow-x: hidden;
}
.gtr-container-xyz789 * {
box-sizing: border-box;
}
.gtr-container-xyz789 p {
font-size: 14px;
margin: 0 0 1em 0;
text-align: left !important;
word-break: normal;
overflow-wrap: normal;
}
.gtr-container-xyz789 .gtr-intro-heading-xyz789 {
font-size: 18px;
font-weight: bold;
margin-bottom: 1.5em;
color: #0056b3;
}
.gtr-container-xyz789 ol,
.gtr-container-xyz789 ul {
margin: 0 0 1em 0;
padding: 0;
list-style: none !important;
}
.gtr-container-xyz789 li {
font-size: 14px;
margin-bottom: 0.8em;
padding-left: 25px;
position: relative;
list-style: none !important;
text-align: left !important;
}
.gtr-container-xyz789 ol li::before {
content: counter(list-item) "." !important;
position: absolute !important;
left: 0 !important;
font-weight: bold;
color: #0056b3;
width: 20px;
text-align: right;
}
.gtr-container-xyz789 ul li::before {
content: "•" !important;
position: absolute !important;
left: 0 !important;
font-weight: bold;
color: #0056b3;
font-size: 1.2em;
line-height: 1;
top: 0;
}
.gtr-container-xyz789 li p {
margin: 0;
display: inline;
list-style: none !important;
}
.gtr-container-xyz789 strong {
font-weight: bold;
}
@media (min-width: 768px) {
.gtr-container-xyz789 {
padding: 24px;
max-width: 960px;
margin: 0 auto;
}
.gtr-container-xyz789 .gtr-intro-heading-xyz789 {
font-size: 20px;
}
}
A practical guide comparing COMBICON series terminal blocks. We help you select the perfect solution based on current, voltage, and application requirements.
Selecting the optimal terminal block is crucial for control panel safety, reliability, and density. Follow these key steps for the right Phoenix Contact solution:
Electrical Ratings: First, verify your current, voltage, and wire cross-section. The COMBICON series offers a complete range from signal-level to high-power applications.
Connection Technology: Choose based on your needs:
Screw Clamp: The versatile CLIPLINE complete system for universal use.
Spring Clamp: Ideal for vibration resistance and fast, tool-free wiring.
Push-in: Maximum installation speed for solid or ferruled conductors.
Pitch & Function: Select standard 5mm or compact 3.5mm pitch for space constraints. Enhance functionality with bridges, end barriers, and marking systems for efficient power distribution and clear identification.
By focusing on these criteria, you can leverage Phoenix Contact's modular system to build a safer, more efficient, and easier-to-maintain control panel.
View More
