Rewrite. protection VCX P-4-B+C AC class T1T2 (B+C) 4P 12.5kA with spark gap

Product detailed description

Rewrite. protection VCX P-4-B+C AC class T1T2 (B+C) 4P 12.5kA with spark gap

Top-notch modular surge protector VCX-P-4-B+C 12.5 kAclass T1 T2 designed to protect LV power installations against induced and switching overvoltages.

Use of patented spark gap in the design of the surge arrester class T1T2 (B+C) perfectly protects devices connected to the network from the effects of destructive lightning current. It provides complete protection of the electrical installation and electrical equipment from it powered against part of the lightning current and other types of overvoltage.

It can be installed in TN-S, TN-C, IT and TT networks. It should be mounted as first and second level of protection in floor switchboards, switchboards. Surge protectors should be installed at the entry points of electrical installations into the building.

Main features

-  Provides complete protection of the electrical installation and electrical equipment powered by it.
-  Provides full protection electrical installations and electrical equipment supplied from them from the effects of lightning current and other types of overvoltage.
-  Reduces overvoltage and brings to ground overvoltages coming from both types of overvoltage - direct and indirect. At the same time, it provides two levels of protection.
-  It does not require the use of so-called isolation chokes.
-  Provides effective protection for computers, household appliancesetc.
-  Equipped with a visual indicator of operation (green - protection, red - no protection).

TECHNICAL PARAMETERS
 

- Protection class: T1 T2
- Protective element: spark gap
- Connection max: 35 mm2
- Maximum operating continuous voltage Uc: 275V AC
-Rated impulse leakage current In (8/20 µs): 25 kA
- Maximum impact leakage current Imax (8/20 µs) [L1+L2+L3+N-PE]: 50 kA
- Lightning current Iimp (10/350 µs) [L, N-PE]: 12.5 kA
- Total pulse current (10/350 µs) [L1+L2+L3+N-PE] (Itotal): 50 kA
- Voltage protection level: <1.5 kV
- Storage temperature: -30°C to +70°C
- Operating ambient temperature: -30°C to +50°C
- Protection rating: IP20

Installation of protection

Surge protectors should be installed at the point of entry of electrical installations into the building. Provides complete protection of the electrical installation and electrical equipment supplied from it against lightning current and other types of overvoltage. 

Reduces overvoltage and induces surge currentsfrom both types of overvoltage - direct and indirect - to ground. At the same time provides a two-tier level of protection.

The use of modular surge protectors VCX-B+C class T1T2 does not require the use of isolating reactors. They provide effective protection for computers, household appliances, etc. They are equipped with a visual indicator of operation (green - protection, red - no protection).

How to overcome induced and switching overvoltages?

The effects of induced and switching surges on the home or business electrical grid are usually deplorable;Overvoltage, i.e. a sudden increase in voltage above the rated value (safe for electrical equipment such as computers or televisions) are very dangerous and imply significant repair and replacement costs.

Modular surge protector class T1T2 (B+C), 12.5 kA is one of the best choices for protecting power equipment from the effects of induced and switching surges.thanks to its parameters, it can be used as a first and second level of protection in branch switchboards and floor switchboards. The place of installation of the device should be the point of entry of the electrical network into the building.

Surge protector class T1T2 (B+C), 12.5 kA reduces overvoltage and reduces surge currents to ground coming from both types of overvoltage - direct and indirect.

Use of patented spark gap in the design of the surge arrester class T1T2 (B+C), 12.5 kA perfectly protects devices connected to the network from the effects of destructive lightning current.

This device has high resistance to surge current Iimp(10/350) 12.5 kA, which has integrated thermal protection and does not require additional protection.

Surge protectors - basic information

When analyzing surge protectors, it is first necessary to explain what alternating current is. Translated from the English abbreviation AC (Alternating Current) this term means alternating current. The name alternating refers, as the name suggests, to its alternating action of positive and negative values.

Surge arrester or surge protection, a lightning arrester is a device used in electrical installations. Its purpose is to provide surge protection for the installation and the equipment connected to it.

How does a surge arise in an electrical installation?

It can arise from a number of sourcessuch as a lightning strike directly into the building or its power lines, a lightning strike into the lightning protection system and/or an outdoor installation element, air conditioning, gate control, outdoor lighting, but also a lightning strike into neighbouring properties - up to a distance of 2 km. Another source of surges can be so-called commutation surges, i.e. switching operations during the operation of certain industrial machinery.

Alternating Current (AC) Surge Arresters

Surge arresters have an important function in electrical equipment. This device, also known as a surge protector or varistor (surge arrester), is designed to protect electrical equipment against transient overvoltages caused by lightning strikes to overhead power lines. Overvoltage also occurs when switching on or off unloaded overhead lines. These events can result in damage or even destruction of various network components and insulation. A surge arrester works by limiting the duration and value of the subsequent current.

Type 1 arresters (previously referred to as class B arresters) protects the electrical installation and all loads from overvoltage caused by a direct lightning strike to the power line or lightning protection system in the building of the arrester.

"1+2" type arresters (previously referred to as class B+C arresters) are hybrid devices. Their purpose is to protect against switching surges. They also protect against atmospheric overvoltages caused by lightning strikes to objects located near overhead lines, but also far from the arresters. Even in the event of a direct lightning strike on overhead lines, the "1+2" type arresters provide protection.

Selecting a surge arrester (surge protector)

When selecting a suitable surge arrester for alternating currentthe maximum continuous operating voltage depending on the voltage present between the phase and neutral conductors must be considered. When selecting, attention should be paid to the waveform of the first overvoltage current corresponding to a waveform of 10/350 µs according to the provisions of the standard.
 

WARNING:

The device may only be installed by an authorized person who is certified according to Decree No. 50/1978 Coll. In case of incorrect wiring and unfamiliarity with the device, unwanted complications may occur. Entrust this work to a specialist.