Surge protection in energy systems

Pluggable VARITECTOR PU AC type I+II – Lightning arrester for 230/400 V Product innovation

Reliable protection of energy feeds from lightning and surge damage

Our VARITECTOR PU AC type I+II are used in industrial plants as well as private and public buildings. The growing number of sensitive devices requires ever better lightning and surge protection for power feeds.

The pluggable lightning and surge protection devices of VARITECTOR PU AC type I+II have a lightning impulse current Iimp = 12.5 kA and are used in lightning protection level III/IV. The devices are energetically coordinated as type I, type II and type III according to IEC/EN 61643-11 (VDE 0675-11) and have a protection level of UP ≤ 1.5 kV. Application-specific product configurations are available for the different network types.

Your advantages

• Combined type I+II arrester for a wide​range of applications​
• Pluggable arrester with 12.5 kA lightning impulse current Iimp per module
• Status display and remote signaling contact for easy maintenance​

VARITECTOR PU AC type I+II lightning arrester for 230/400 V networks Product innovation

Protect sensitive devices reliably against overvoltage damage

The growing number of sensitive devices requires ever better lightning and surge protection for power feeds. This applies to industrial plants as well as to private and public buildings and regenerative power generation.

The combined lightning and surge protection devices of the VARITECTOR PU AC type I+II are leakage current-free and particularly compact. They can be used in the pre- and post-metering area according to VDE-AR-N 4100. All devices are energy coordinated and fulfill the performance classes T1,T2, and T3 according to IEC/EN 61643-11 and VDE 0675-11 with a protection level up to ≤ 1.5 kV. Application-specific product configurations are available for the different network types.

Your advantages

• Combined type I+II arrester for a wide​range of applications​
• Leakage current-free monobloc with 12.5 kA lightning impulse current Iimp
• Status display and remote signaling contact for easy maintenance​

VARITECTOR PU AC II+III 20 S

Pluggable surge protection devices – optimal protection in the smallest space

Surge protection is a mandatory component in all commercial and private real estate according to DIN VDE 0100-443 and -534. Easy-to-install and, above all, space-saving solutions are particularly popular here.

Our new VARITECTOR PU AC II+III surge protection devices provide optimal protection against surge damage. With a width of only 9 mm per pole, they are particularly compact and can therefore be used in all sub-distribution boards, charging stations, and many other applications. The modules fulfill the requirement classes of type 2 and 3. With a discharge current of 20 kA, these products offer excellent and tailor-made protection.

Your advantages

• Available for mains types TN-S, TN-C, IT, and TT
• Suitable for operating voltages (Uc) 275 V and 440 V
• High short-circuit current resistance of up to 25 kA
• Combined type 2 and 3 arrester
• Space-saving design with only 9 mm per pole

VARITECTOR PU AC S Line

With increasing digitization, the infrastructure of intelligent devices and systems is becoming more and more sensitive to interferences. Besides, cost and competition are forcing manufacturers to improve compactness and efficiency of their products. The innovative gas arrester technology of our VARITECTOR PU AC S line enables a particularly space-saving design with only 18 mm width per pole. For excellent surge protection with a slim design and an attractive price / performance ratio.

Your advantages

• Narrowest pluggable type I arrester with 25 kA discharge capacity
• Powerful – fuseless operation up to 315 A
• Energetic coordination as type I, II and III enables reliable protection

VARITECTOR PU AC US-line

High-performance surge protection for the North American market

According to NFPA 79, surge protection products must ensure voltage limitation according to the insulation coordination. This requirement is met by devices of the VARITECTOR PU US series. They are UL listed, which includes the requirements of NFPA 79. The product series has been specially adapted to the North American market. In addition to the requirements of UL 1449, it also meets the EN 50539-11 standard and can therefore be applied worldwide.

Your advantages

• Compliance with NFPA 79 (Edition 2018) for the entire product series
• “UL-Listed” mark of conformity on all product variants
• Simplified approval of plants used in the USA
• Worldwide applicable due to simultaneous compliance with EN 50539-11

VARITECTOR PU AC type I for 950 V AC applications

Increase system availability with lightning and surge protection

The supplementary VARITECTOR PU AC type I module was designed as a surge protection device for AC networks with a nominal voltage of 800 V AC. It is especially suitable as a surge protection device for Huawei SUN 2000 and PID 2000 inverters. The dedicated 3+MOV design ensures safe operation with PV inverter systems up to Uc 950 V.

Your advantages

• Special 3+MOV variant for AC-side protection of an inverter
• Type I/type II combination arrester according to EN 61643-11:2002-A11:2007
• Continuously pluggable solution for easy installation and maintenance

Fuseless operation up to 315 A

Ever more efficient overvoltage protection solutions are required, especially in energy supply areas like renewable energy generation, process industry, and building infrastructure. VARITECTOR PU AC surge protection devices offer a leading price-performance ratio. They enable fuseless operation up to 315 A, are certified according to UL 1449 Ed. 4 and convince with particularly efficient design.

Your advantages

• Fuseless operation up to 315 A backup fuse
• Certification in accordance with current IEC/EN standards and UL 1449 Ed. 4
• Full protection status control with optional pre-warning function
• Intelligent locking mechanisms ensure reliable operation even under harsh environmental conditions

VARITECTOR PU IoT AC

Going digital with communication-capable surge protection

Surge protection is becoming more and more important due to increasing digitization. This is partially because the sensitivity of intelligent devices, systems, and infrastructures is growing, and partially because cloud communication and the exchange of process data are playing an increasing role.

New type VPU IoT AC surge protection devices combine powerful surge protection with the functions of an intelligent IoT device. This makes it possible to monitor important functions. As a result, important functions can be monitored, including the device status in real time, the number of overvoltages, the status of the protective earth connection, the history of temporary overvoltages (TOV), replacement recommendations, and much more.

Your advantages:

• Integrated test device
• Detection of surges
• Monitoring of the protective conductor connection (PE)
• Voltage monitoring of the individual phases
• Combined Type II + III arrester
• History of TOV impulses