3 Phase Surge Protector

3 Phase Surge Protection - Type 1 SPD

3 Phase Surge Protector Type 1 range is designed to meet all protection needs of low voltage installations against lightning and industrial surges.

These products comply with IEC/EN and environmental standards. The ranges are classified by product type and their power supply network.

This 3 phase Surge Protector used for TN-S systems; The 3 phase Surge Protection Device Impulse discharge current (10/350 μs) Iimp up to 25kA.

This 3 phase Surge Protection used for TT or TN-S systems; The 3 phase Surge Protcetor is particularly useful in a high lightning density area where the risk of heavy surge current or even direct strike.

This 3 phase Surge Protector used for TN-C systems; The 3 phase Surge Arrester installed at the load center’s main circuit breaker, e.g. main distribution board.

3 Phase Surge Protector - Type 1+2 SPD

3 Phase Surge Protector (Type 1+2) is characterized by a 10/350 µs and 8/20 µs lightning current waveform and tested accroding to IEC/EN 61643-11.

This 3 phase Surge Protector used for TN-S systems; The 3 phase Surge Protection Device Impulse discharge current (10/350 μs) Iimp up to 12,5kA.
This 3 phase Surge Protection used for TT or TN-S systems; The 3 phase Surge Protector is installed at the origin of the AC installation equipped with LPS.
This 3 phase Surge Protector used for TN-C systems; The 3 phase Surge Arrester can protect all electrical installations against lightning strikes by discharging the current created from a lightning surge and keeping it from spreading to the equipment.

3 Phase Surge Protection - Type 1+2 SPD

These 3 Phase Surge Protectors are designed to be connected in multi-pole configuration to protect 3-phase and 3-phase+Neutral AC networks,

and for TN-C, TN-S, TN-C-S TT, and IT power supply systems.

This 3 phase Surge Protector used for TN-S systems; The 3 phase Surge Protection Device Impulse discharge current (10/350 μs) Iimp up to 7kA.
This 3 phase Surge Protection used for TT or TN-S systems; The 3 phase Surge Protector adapt to unique trigger release, effectively solve the isolation and extinguishing arc.
This 3 phase Surge Protector is used for TN-C systems; The 3 phase Surge Arrester is designed to be installed at the service entrance of low-voltage systems to protect against transient overvoltages.

3 Phase Surge Protector - Type 2 SPD

3 Phase Surge Protector SLP40 series is characterized by an 8/20 µs lightning current waveform and tested accroding to IEC/EN 61643-11.
This 3 phase Surge Protector used for TN-S systems; The 3 phase Surge Protection Device Nominal discharge current (8/20 μs) In = 20kA, Maximum discharge current (8/20 μs) Imax = 40kA.
This 3 phase Surge Protection Device used for TT or TN-S systems; The 3 phase Surge Protector adapt to unique trigger release, effectively solve the isolation and extinguishing arc.
This 3 phase Surge Protector is used for TN-C systems; The 3 phase Surge Arrester is characterized by an 8/20 µs lightning current waveform.

3 Phase Surge Protection - Type 2+3 SPD

This 3 phase Surge Protector is used for TN-C systems; The 3 phase Surge Arrester is characterized by an 8/20 µs lightning current waveform.
This 3 phase Surge Protector used for TN-S systems; The 3 phase Surge Protection Device Nominal discharge current (8/20 μs) In = 10kA, Open circuit voltage (1.2/50 μs) Uoc = 20kV.
This 3 phase Surge Protection used for TT or TN-S systems; The 3 phase Surge Protector is generally installed in sub-distribution or machine control cabinets.
This 3 phase Surge Protection Device is used for TN-C systems; These 3 phase Surge Protector SLP20 series are rated for indoor use or fixed into a waterproof box for outdoor use.

3 Phase Surge Protector Price

Reliable 3 phase surge protection device is designed to meet the protection needs of installations against lightning and surges. Get 3 phase surge protector price now!

What is a 3 Phase Surge Protector?

3 phase surge protection devices are unique and significant electronic tools used to safeguard the wiring in the consumer unit and other electrical installations against transient overvoltages on 3 phase alternating current (AC) power lines.

3 Phase Surge Protector Working Principle

Surge protection devices contain at least one non-linear component (a varistor or spark gap), the electrical resistance of which varies with the voltage applied to it. Their purpose is to redirect discharge or impulse current and limit overvoltage at downstream equipment.
To completely comprehend the mechanism underlying three phase surge protection device. Here’s a more in-depth explanation of how it works:
  • During normal operation (e.g., in the absence of surges), the surge protection device has no influence on the system where it’s installed. It acts as an open circuit and maintains the isolation between the active conductors and the earth.
  • When a voltage surge occurs, the surge protection device reduces its impedance within a few nanoseconds and diverts the impulse current. The surge protection device behaves like a closed circuit, the overvoltage is short-circuited and limited to an acceptable value for the electrical equipment connected downstream.
  • Once the impulse surge has stopped, the surge protection device will return to its original impedance and return to the open circuit condition.

3 Phase Surge Protector Wiring Diagram & Intallation

Wiring Diagram:

Installation:

Three-Phase Type 2 Surge Protective Device SPD Wiring Diagram & Installation for Cabinets, Distribution Box

3 Phase Surge Protector Application

3 phase surge protection devices play a critical role across various environments, such as industrial plants, commercial buildings, and residential communities.

In industrial plants, these devices protect essential machinery and sensitive electronic control systems from high-energy transient voltages caused by lightning or heavy electrical operations. This ensures equipment safety, maintains production continuity, and reduces maintenance costs.

In commercial buildings like office complexes and shopping malls, 3 phase surge protection devices safeguard key services like lighting systems, HVAC units, and elevators, preventing equipment failures caused by electrical disturbances and ensuring smooth business operations.

While the electrical demands in residential areas are lower, the installation of 3 phase surge protection devices can still effectively protect household electronics and appliances from surges caused by lightning, providing peace of mind for homeowners.

Overall, the application of 3 phase surge protection devices across different sectors not only prevents costly downtime and equipment failures but also ensures long-term safety and stability. These devices are essential for protecting electrical systems from surge damage.

How To Choose The Ideal 3 Phase Surge Protector?

3 phase surge protection devices are an important part of any electrical system, especially in industries where sensitive equipment is used. They are available in a variety of designs and ratings, and choosing the right one is critical to ensuring the safety of the equipment.
Now that you know what a 3 phase surge protector is and how it functions, you should be ready to purchase one for your electronics.

The following are the key points to bear in mind:

Choose a suitable 3 phase surge protector according to the parameters in the table below:

EN 61643-11:2012 IEC 61643-11:2011 VDE 0675-6-11:2002 In (80/20μs) Imax (8/20μs) Iimp (10/350μs) Uoc (1.2/50μs)
Type 1 Class I Class B 25 kA 100 kA 25 kA /
Type 1+2 Class I+II Class B+C 20 kA 50 kA 7 kA /
12.5kA
Type 2 Class II Class C 20 kA 40kA / /
Type 2+3 Class II+III (or III) Class C+D (or D) 10 kA 20kA / 20 kV
5 kA 10 kA 10 kV

AC Surge Protection devices Standards and Test Classification

Reliability in surge protection!

LSP’s reliable 3 Phase Surge Protection Devices (SPDs) are designed to meet the protection needs of installations against lightning and surges. Contact our Experts!

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