Surge protector also known as Transient Voltage Surge Suppressor (TVSS), Surge protection Device (SPD) or Surge Suppression Equipment (SSE)
Transients are temporary spikes or surges in voltage or current that can potentially impact circuits in ways ranging from minor glitches to catastrophic failure. A voltage transient can be anywhere from a few millivolts to thousands of volts, and they can last from nanoseconds to hundreds of milliseconds. Some transients are repetitive, such as those caused by inductive ringing in a motor, while other transients are more sporadic, such as ESD events.
“CTR TVSS is designed to protect electrical and electronic equipment from power surges and voltage spikes.”
TVSS to protect your sensitive telecommunications, HVAC, and other electrical and electronic equipment.
The product is available in single phase and Three phase following ratings.
20, 25, 40, 60, 80 and 100 kA per phase.



Origins of Transients




Transients can be generated from internal or external connections to a circuit.
- Arcing
- Inductive load switching
- IC logic switching
Externally generated transients enter a circuit (or system) by pathways including:
- Data/signal input and/or output lines
- Other attached wires/cables, such as grounds
ESD (electrostatic discharge) is another common form of externally generated voltage transient. ESD events can cause either immediate damage or, arguably even worse, latent damage—sometimes referred to as the “walking wounded.” The term walking wounded is used because an ESD damaged component may continue to work normally for hours, days, or even months before a catastrophic failure occurs.
Technical Specification (3 phase):
Description |
Transient Voltage Surge Suppresser |
Type |
TVSS |
Input Voltage |
440 VAC |
Transient Protection |
20, 40 and 80 KA. |
Pulse Shape |
8/20µs |
MOV Failure Monitoring |
5mm LED (Red, Yellow, Blue) |
For Service power protection |
4 Pole MCCB |
Operating Temperature |
-250C to 850 C |
Enclosures |
210mm X 190mm X 90mm |
Power Connection |
Shock proof Connection |


Technical Specification (1 phase):


Description |
Transient Voltage Surge Suppresser |
Type |
TVSS |
Input Voltage |
250 VAC |
Transient Protection |
10,20 and 25 KA. |
Pulse Shape |
8/20µs |
MOV Failure Monitoring |
5mm LED (Red, Yellow) |
For Service power protection |
4 Pole MCCB |
Operating Temperature |
-250C to 850 C |
Enclosures |
100mm X 80mm X 70mm |
Power Connection |
Shock proof Connection |
Highlights
- Power from 20 to 100 kA
- Surge Plane Technology to Ensure Reliability and Performance by using A low Impedance Copper Platform.
- Compact design that enables close mounting to electrical distribution equipment
- Protect electrical and electronic equipment’s from power surges and voltage spikes.
- Fast Acting, Bidirectional