A surge arrestor is an electrical device that is generally used to protect other electrical equipment by withstanding or releasing current surges and voltage spikes caused by external forces (such as lightning) or internal forces. This electrical device is also usually called a surge protection device, or SPD (Surge Current Protection).
This device becomes a protector between the power source and the device connected to it, which intercepts excessive electric current and diverts it to the ground.
This current surge arrester will not be active during normal times, when the amount of voltage flowing is still normal. However, this device will immediately activate and start discharging excessive current to the ground, but only during the voltage surge.
In general, the surge arc will be installed at the entry point to the electrical system, for example, a distribution panel. Installation at the entry point aims to protect the entire system from potential electrical damage caused by sudden surges in electric current.
So that it can be used by anyone, this tool is available in various types, depending on its function, such as for industrial machines and telecommunications, and includes a scaled-down version for use in residential apartments.
Most people equate a surge arc with a lightning arc, as they both perform almost the same function on paper. But actually, these two tools are different. Surge arresters cannot absorb lightning like lightning arresters and do not protect devices from direct lightning strikes.
Meanwhile, the surge arc helps limit very large voltage spikes that can be caused by lightning and can protect other electrical devices connected to the panel. Additionally, lightning arresters are usually installed outdoors, and surge arresters are installed indoors.
If you are looking for a surge arrow with proven quality, it is from OBO!
The surge protective device from OBO has two types. First, there is the Type 1 + 2 Combination Arrester, which is used at the feed point in the building. This type can be used in buildings with lightning protection and buildings with air intakes.
Then, there is Type 2 surge protection, which is used on main/sub distribution boards and switching cabinets. This type can be used in buildings without lightning protection.
- Surge Arrester OBO MCF Compact Type 1 + 2 Combination Arrestor
This surge protector is intended for industrial and residential buildings. There are two types of MCF, namely the MCF-NAR Combination Arrester, the Lightning Controller Compact MCF100, and the V50 Combination Arrester.
- MCF-NAR Combination Arrester OBO
Combination Arrester MCF-NAR type 1+2 is the newest surge arrester from OBO Betterman. The name NAR is an abbreviation of "netzseitiger Anschlussraum," which means power-side connection compartment. This name was chosen because the spark gap technology installed meets the requirements for surge protection devices on this device for use in the pre-meter area in accordance with VDE-AR-N 4100.
Characteristics :
- Must be located as close as possible to the supply point, in accordance with the latest technical connection rules for VDE-AR-N 4100 for connection of customer systems to low-voltage networks.
- MCF-NAR Combination Arrester OBO is installed in the lower connection compartment, in accordance with connection regulations. Thus, this device can provide reliable protection against voltage surges directly at the supply point.
- Installation on a 40mm busbar system in the meter cabinet, making installation very simple and saving time.
- There are variants for residential use without external lightning protection, for housing and commercial buildings with external lightning protection (lightning protection class 3+4), and for hospitals and data centers (lightning protection class 1+2).
- For different application areas, a 3-pin version is available for TN-C networks, and a 3-NPE version is available for TT and TN-S networks.
- VDE-tested combination arresters meet international standards and, with a protection level of ≤1.5 kV, also increase the safety of downstream terminals.
- The presence of a voltage limit on the SPD ensures insulation protection to avoid the formation of sparks and fires.
- There is a QR code on the electrical device, which can help you quickly remember technical information from the OBO website using various devices such as smartphones and tablet PCs.
- Lightning Current and Surge Arrester Type 1+2 OBO
OBO Lightning Current and Surge Arrester Type 1+2 is one of the most powerful devices on this team. This electrical device was developed for universal use in buildings with lightning protection classes I –IV. Usually, this tool is used in buildings with external lightning protection or overhead line supply. OBO's Lightning Current and Surge Arrester can not only be used in offices, commercial real estate, and residential buildings, but is also very suitable for industry.
Characteristics :
- Lightning protection classes I–IV.
- Lightning protection capacity up to 100 kA (25 kA/pin).
- The Combination Arrestors are available in 3 pin (TNC Network) and 3+1 pin (TT and TNS Network) versions.
- It can be installed at the building supply point.
- Offers system protection up to 315 A without a separate backup fuse.
- It has a width of only 105 mm, so the shape is more compact than lightning rods in general.
- The size is 25% smaller, so it saves space and can be more easily inserted into the supply point/switch equipment cabinet.
- Provides protection for electricity up to 50 kA.
- Operating instructions are always available online via QR code.
- V50 Combination Arrester OBO
The OBO V50 Combination Arrester is usually used to protect offices, commercial real estate, and housing with external lightning protection systems or air duct supplies. Usually this arrester is also installed at the building's supply point
Characteristics :
- Provides system protection up to 160 A without separate backup fuse.
- The V50 Combination Arrester device from OBO is available in 1 to 4 pin versions.
- The voltage variations available are 150V, 280V, 320V, and 385V.
- Designed for lightning protection classes III-IV.
- This device has a lightning current discharge capacity of 50kA (12.5 A/pin).
- Universally mountable via 90° labeling.
- Locking function with vibration protection.
- Available in variations from 1 to 4 poles.
- There is a remote signaling option, as well as potential free changeover contacts.
- Operating instructions are always available online and can be accessed via QR Code.
- Surge Arrester OBO Type 2 Surge Protection
OBO's Type 2 Surge Arrester is usually used in buildings that do not have lightning rods or lightning protection. The device that falls into this category is the Surge Arrester V20.
- Surge Arrester V20 OBOThe OBO Surge Arrester V20 is a surge protection device designed for buildings without an external lightning protection system. Generally, it is also used in main distributors and subdistributors/building substation cabinets. This device is also suitable for use in systems with higher safety requirements.
Characteristics :
- Total arrester capacity reaches 60 kA.
- Offers system protection up to 160 A without a separate backup fuse.
- The V20 Surge Arrester from OBO is also available in 1–4 pole versions.
- The voltage variations offered are 75 V, 150 V, 280 V, 320 V, 385 V, 440 V, and 550 V.
- Protection level: <1.5 kV can be used in coordination with SPD type 3.
- Universally used for industrial, office, commercial, and residential buildings.
- Can be installed universally via 90° labeling.
- A remote signaling option is available, as well as potential free changeover contacts.
- Operation instructions are always available online, which can be accessed using a QR code.
That's a list of OBO Arrester products that you can choose according to your needs.
Interested in buying it?You can get the OBO Surge Arrester at the best quality and affordable prices only here!
