IEC Dataline and DC Signal Surge Suppressors

Last Updated: April 1, 2025

Description

IEC Dataline and DC Signal Surge Suppressors are designed to protect electronic devices and communication lines from transient overvoltage events. These suppressors safeguard sensitive equipment by limiting the voltage that can reach the protected devices, thereby preventing damage from electrical surges.

Working Principle

IEC Dataline and DC Signal Surge Suppressors operate by diverting excess voltage away from the protected lines and equipment. They typically use components such as Gas Discharge Tubes (GDTs) and clamping diode networks to manage incoming surges. When a surge occurs, these components either absorb or redirect the excess energy, ensuring that only safe voltage levels reach the connected devices. This protection is crucial for maintaining the integrity and functionality of electronic systems, especially in environments prone to voltage spikes.

Applications

These surge suppressors are commonly used in industrial processing equipment, I/O cards, transmission systems, and displays. They are particularly effective in protecting 6V, 12V, and 24V DC applications, which are prevalent in various industrial and commercial settings. For example, they can be used to protect communication lines in a factory's control system or safeguard data transmission in a telecommunications network.

Advantages over other Dataline and DC Signal Surge Suppressors

One of the key advantages of these suppressors is their ability to handle high transient current ratings with lower clamping voltages compared to alternative technologies. This means they can provide robust protection while minimizing the impact on the normal operation of the protected systems. Additionally, their design often includes features like surface mounting and surge-tolerant fuses, which enhance their suitability for high-speed telecom applications.

Limitations

A specific limitation of these surge suppressors is the need for careful selection based on the maximum surge current and the number of protected lines. If not properly matched to the system's requirements, the suppressors may not provide adequate protection. Additionally, the wiring method for certain products, such as the 4983-DD, differs from most other surge protective devices, which may require additional consideration during installation.

Considerations

When selecting IEC Dataline and DC Signal Surge Suppressors, it is important to consider factors such as initial costs, operating expenses, and durability. The initial cost may vary depending on the specifications and features of the suppressor. Operating expenses are generally low, as these devices do not consume power during normal operation. Durability is a critical factor, as the suppressors must withstand repeated surge events without degradation. Maintenance costs are typically minimal, but it is essential to periodically inspect the suppressors to ensure they remain effective. Replacement costs should also be considered, especially in environments with frequent or severe surge events.

10 Results
Surgelogic XR SPD -- TVS120XR40B
from Schneider Electric Surge Protection

Compact design, type 4X enclosure, conforms to international standards [See More]

  • Standards: CSA Mark; IEC; UL; cUL
  • Technology: Metal Oxide Varistor
  • Application: Data Acquisition; Network Applications; Telecom. Applications
  • Mounting: Wall/Panel
D60301R Series -- D60301-001R
from ASCO Power Technologies

Data and I/O are often overlooked as sources of problems for automation processes. Many times damaging transient can come in through the "back door" and disrupt a control system or damage a critical sensor because most industrial control hardware does not come with transient protection, it has to be... [See More]

  • Standards: CE Marking; IEC; UL; UL497B
  • Technology: Gas Tubes; Hybrid; Tanzorbs, Inductors, and Resistors
  • Application: Data Acquisition; Network Applications
  • Mounting: DIN Rail
Data Surge Protector SPD ALPU Outdoor Gigabit Ethernet Shielded RJ45 SASD CE Compliant, IEC60950-1, ATEX, IECEx, UL -- 1101-935
from Transtector Systems, Inc.

Data surge protector (also known as SPD or lightning protector) 1101-935 from Transtector is an outdoor style SPD that utilizes state of the art SASD technology to protect critical equipment in Gigabit Ethernet protocol data networks, while remaining transparent to data throughput. This surge... [See More]

  • Standards: CE Marking; IEC; UL; RoHS; Hazardous Locations
  • Technology: Silicon Avalanche Diode
  • Application: Network Applications; Telecom. Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
  • Mounting: Wall/Panel; Pole
LAN GigE 1000Base-T PoE Plus Protector -- LAN-CAT5e-P+
from Sankosha U.S.A., Inc.

Features: Gigabit Ethernet In-Line Protection. Complies with IEC 61643-21, 61000-4-5. IEEE 802.3ab Compliant. Cat5 and Cat5e Performance Rating. Connector Style: RJ-45 STP In/Out. 35 mm DIN Rail or Surface Mountable. Lead-Free (RoHS Compliant). All pins protected. Applications: 10/100/1000 Base-T... [See More]

  • Standards: UL 497B Rating; IEC; IEEE; RoHS
  • Mounting: DIN Rail; Surface Mount
  • Application: Network Applications
  • Connection: RJ41, RJ45 or RJ48 Data Jacks
10/100Base-T Surge Protector -- Model 570/580
from Data Connect Enterprise, Inc.

Patton EPG's Model 570 and 580 twisted pair surge protectors are EIA/TIA TSB-40A Category-5 certified, and operate at speeds up to 100 Mhz. And with specs like N.E.X.T. of -43 db (worst pair), you can rest assured that these units will protect your 100Base-T, RS-422 or 100VG-AnyLan data lines... [See More]

  • Standards: IEC
  • Mounting: Plug-in
  • Application: Data Acquisition; Network Applications
  • Connection: RJ41, RJ45 or RJ48 Data Jacks
Data Surge Protector SPD ALPU Outdoor Gigabit Ethernet/PoE+ Shielded RJ45 GDT CE Compliant, EN/IEC 60950-1, UL 497B -- ALPU-L130
from Transtector Systems, Inc.

Data surge protector (also known as SPD or lightning protector) ALPU-L130 from Transtector is an outdoor style SPD that utilizes state of the art GDT technology to protect critical equipment in Gigabit Ethernet/PoE+ protocol data networks while remaining transparent to data throughput. This surge... [See More]

  • Standards: UL 497B Rating; CE Marking; IEC; UL; RoHS
  • Technology: Gas Tubes
  • Application: Network Applications; Telecom. Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
  • Mounting: Wall/Panel; Pole
Data Surge Protector SPD ALPU Outdoor Gigabit Ethernet/PoE+ Shielded RJ45 GDT CE Compliant, EN/IEC 60950-1, UL 497B -- DPR-B120
from Transtector Systems, Inc.

Data surge protector (also known as SPD or lightning protector) DPR-B120 from Transtector is an indoor style SPD that utilizes state of the art GDT technology to protect critical equipment in Gigabit Ethernet PoE protocol data networks while remaining transparent to data throughput. This surge... [See More]

  • Standards: UL 497B Rating; CE Marking; IEC; UL; RoHS
  • Technology: Gas Tubes
  • Application: Network Applications; Telecom. Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
  • Mounting: Wall/Panel; DIN Rail; Rack
Data Surge Protector SPD ALPU Outdoor Gigabit Ethernet/PoE+ Shielded RJ45 SASD CE Compliant, IEC60950-1, ATEX, IECEx, UL, Smartline Kit -- 1101-971
from Transtector Systems, Inc.

Data surge protector (also known as SPD or lightning protector) 1101-971 from Transtector is an outdoor style SPD that utilizes state of the art SASD technology to protect critical equipment in Gigabit Ethernet/PoE+ protocol data networks while remaining transparent to data throughput. This surge... [See More]

  • Standards: CE Marking; IEC; UL; ATEX, Hazardous Locations
  • Technology: Silicon Avalanche Diode
  • Application: Network Applications; Telecom. Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
  • Mounting: Wall/Panel; Pole
Data Surge Protector SPD ALPU Outdoor Gigabit Ethernet/PoE++ Shielded RJ45 SASD CE Compliant, IEC60950-1, ATEX, IECEx, UL -- 1101-959
from Transtector Systems, Inc.

Data surge protector (also known as SPD or lightning protector) 1101-959 from Transtector is an outdoor style SPD that utilizes state of the art SASD technology to protect critical equipment in Gigabit Ethernet/PoE++ protocol data networks while remaining transparent to data throughput. This surge... [See More]

  • Standards: CE Marking; IEC; UL; RoHS; ETL 60950-1
  • Technology: Silicon Avalanche Diode
  • Application: Network Applications; Telecom. Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
  • Mounting: Wall/Panel; Pole
Data Surge Protector SPD ALPU Outdoor Gigabit Ethernet/PoE++ Shielded RJ45 SASD, GDT CE Compliant, EN/IEC 60950-1, UL 497B -- ALPU-F140
from Transtector Systems, Inc.

Data surge protector (also known as SPD or lightning protector) ALPU-F140 from Transtector is an outdoor style SPD that utilizes state of the art SASD/GDT technology to protect critical equipment in Gigabit Ethernet/PoE++ protocol data networks while remaining transparent to data throughput. This... [See More]

  • Standards: UL 497B Rating; CE Marking; IEC; UL; RoHS
  • Technology: Silicon Avalanche Diode; Gas Tubes
  • Application: Network Applications; Telecom. Applications; Computer Rooms; Control Lines and Sense Loops, Oil & Gas
  • Mounting: Wall/Panel; Pole