Surge protection in energy systems

VARITECTOR PU AC II+III 20 S Produkt innovation

Pluggable surge protection devices - Optimum protection in the smallest space

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

Our new VARITECTOR VPU AC II+III surge protection devices provide optimum protection against lightning and 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 fulfil the requirement classes of type 2 and 3. With a dischage current of 20 kA these products offer excellent and tailormade protection.

Your benefits

• 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 with integrated fuse Produkt innovation

The proven surge protection devices of the VPU series are now also available in variants with integrated fuses. This eliminates the need for an additional fuse before the SPD. The combined type II+III surge protection devices have one back-up fuse per protective path and can be used universally in power distribution systems. The application-oriented pluggable product configurations allow flexible use in different network types.

Your advantages

• Perfect protection due to integrated fuse and high discharge currents
• - Reduced wiring by sacrificing pre-fuse
• Flexible use in all power distribution systems
• Convenient installation and maintenance due to pluggable modules
• Particularly compact with space-saving design

VARITECTOR PU AC S-line Produkt innovation

With increasing digitalisation, the infrastructure of intelligent devices and systems isbecoming 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 aslim 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
• - Continuous pluggability for easy installation and maintenance

VARITECTOR PU AC type I+II monobloc

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

Your advantages

• - Combined type I+II arrester for a wide range of applications
• Status display and fault signalling for easy maintenance
• High discharge current for universal use in all lightning protection classes

Fuseless operation up to 315 A Produkt innovation

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

Lightning and surge protection VPU I

Class I SPDs for lightning protection and equipotential bonding in energy grids.

Your advantages

• Tested by IEC/EN 61643-11 up to Iimp 25 kA (10/350µs ) lightning pulse
• Supports all common energy grids like TNC, TNCS, TNS and TT for 230/400 V or 400/690 V systems
• Combined varistor/spark gap technology for leakage current free products
• Space savings of 50 % due to reduced width

Surge protection VPU II

Class II SPDs for energy grids.

Your advantages

• Certification to international IEC/EN 61643-11 standards and the latest UL 1449 Ed. 4 standard
• All products of the VPU AC series have an optical status indicator. Variants with pre-warning display are available
• Fuseless operation up to 315 A backup fuse
• Supports all common energy grids like TNC, TNCS, TNS and TT for 230/400 V or 400/690 V systems

Terminal device surge protection VPU III

Class III SPDs for your energy grid.

Your advantages

• Compact Type III arrester for AC/DC protection acc. to IEC 61643-11
• Two Port SPD type III protects the electronic device up to 16 A
• Surge protection with monitoring contact