Sirius ESE Air Terminal by TOPBAS
The Sirius ESE Air Terminal is a non-electronic Early Streamer Emission (ESE) air terminal by TOPBAS, designed for use in external lightning protection systems. The unit is based on ESE technology with a 60 µs triggering-time advance (ΔT) and is designed according to NF C 17-102 (2011).
Its construction uses 304L stainless steel, while the terminal does not require a battery or external power source. The published technical information also specifies compatibility with different down-conductor arrangements, including tape or strip conductors, round conductors and isolated or insulated cables.
Sirius is the product name associated with the TOPBAS ESE air-terminal range. Unlike electronic lightning protection equipment that requires an external power supply, this model is identified in the product documentation as a non-electronic ESE air terminal.
Key Features
| Feature | Sirius ESE Air Terminal |
|---|---|
| Brand | TOPBAS |
| Product | Sirius ESE Air Terminal |
| Technology | Non-Electronic ESE |
| Triggering-Time Advance | ΔT = 60 µs |
| Standard | NF C 17-102 (2011) |
| Construction | 304L Inox Stainless Steel |
| Battery | Not required |
| External Power | Not required |
| Down-Conductor Compatibility | Tape/strip, round conductor, isolated/insulated cables and other suitable configurations |
| Warranty | 20 years |
The combination of ESE technology, stainless-steel construction and a passive operating design makes the Sirius terminal suitable for consideration in engineered external lightning protection systems.
Sirius ESE Air Terminal Specifications
The following specifications are based on the supplied product information.
Technical Features
- Non-electronic ESE technology
- 60 µs triggering-time advance
- Designed according to NF C 17-102 (2011)
- 304L Inox stainless-steel construction
- No battery required
- No external power source required
- Suitable for different down-conductor configurations
- 20-year warranty
Testing and Protection Information
The supplied technical information states that the product has been associated with the following testing:
- CPRI: 70 kA at 8/20 µs
- METU, Turkey/Europe: 100 kA at 10/350 µs
These test values should be matched with the technical certificate or documentation supplied with the particular product.
Sirius Protection Radius According to NF C 17-102
Protection radius is not a single fixed value for every installation.
The published table provides different protection distances according to:
- Mast height
- Lightning protection level
- Installation conditions
Therefore, the appropriate protection radius should be selected according to the project design rather than treating one radius as universal coverage.
Published Protection Radius
| Mast Height h (m) | Level I – Very High | Level II – High | Level III – Medium | Level IV – Standard |
|---|---|---|---|---|
| 2 | 31 m | 35 m | 39 m | 43 m |
| 3 | 47 m | 52 m | 58 m | 63 m |
| 4 | 63 m | 69 m | 78 m | 85 m |
| 5 | 79 m | 86 m | 97 m | 107 m |
| 6 | 79 m | 87 m | 97 m | 107 m |
| 8 | 79 m | 88 m | 98 m | 108 m |
| 10 | 79 m | 88 m | 99 m | 109 m |
| 15 | 80 m | 89 m | 101 m | 111 m |
| 20 | 80 m | 89 m | 102 m | 113 m |
| 45 | 80 m | 89 m | 105 m | 119 m |
| 50 | 80 m | 89 m | 105 m | 120 m |
| 80 | 80 m | 89 m | 105 m | 120 m |
| 100 | 80 m | 89 m | 105 m | 120 m |
Important: The maximum values shown in the table should not be interpreted as a universal 120 m coverage radius. Actual protection depends on mast height, protection level, building geometry, positioning and the complete lightning protection design.
How the ESE Air Terminal Fits Into a Lightning Protection System
An ESE air terminal is one part of an external lightning protection arrangement.
A complete system generally requires coordinated components such as:
- Air terminal
- Mast or suitable mounting arrangement
- Down conductors
- Test or inspection points where required
- Earth termination system
- Earthing electrodes
- Earth enhancement materials where required
- Equipotential bonding and associated accessories
The terminal provides the interception point for lightning protection, while the down-conductor and earthing arrangement provide the intended path toward earth.
For this reason, selecting the air terminal should not be separated from the overall lightning protection and earthing design.
Sirius ESE Lightning Protection Applications
The Sirius terminal can be considered for external lightning protection applications where an ESE air-terminal arrangement is specified by the project design.
Potential applications include:
Commercial Buildings
Commercial buildings can require coordinated lightning protection for roofs, exposed structures, equipment and associated electrical infrastructure.
Industrial Facilities
Factories, warehouses and industrial sites may contain large roof areas, metallic structures and electrical equipment that require an engineered external lightning protection system.
High-Rise and Large Buildings
For taller structures, the terminal position, mast height, down-conductor routing and earthing arrangement should be evaluated as part of the overall design.
Infrastructure and Outdoor Structures
The system can also be considered for suitable infrastructure and exposed structures where external lightning protection is required.
Sirius ESE Air Terminal for Solar Projects
Solar installations contain extensive outdoor electrical equipment and metallic structures. Lightning protection therefore needs to be considered together with the site’s earthing and bonding arrangement.
For a solar project, the protection design may include:
- ESE air terminal
- Lightning down conductors
- Solar earthing system
- Copper or suitable earth conductors
- Earth electrodes
- Earth pits
- Bonding connections
- Surge protection devices where specified
- Appropriate lightning protection accessories
The air terminal should be positioned according to the project’s lightning protection design and should not be treated as a replacement for proper solar earthing or surge protection.
304L Stainless Steel Construction
The Sirius terminal is specified with 304L Inox stainless steel construction.
This material selection is particularly relevant for outdoor lightning protection equipment because the air terminal is exposed to environmental conditions.
The supplied product information describes the 304L stainless-steel design as suitable for different environmental conditions
No Battery or External Power Source
One of the stated characteristics of the Sirius ESE Air Terminal is its non-electronic design.
The product documentation specifies that it does not require:
- Battery
- External electrical power source
This makes its operating concept different from powered electronic lightning protection devices.
Down-Conductor Compatibility
The supplied technical information indicates that the terminal can be used with a variety of down-conductor configurations.
These include:
- Tape or strip conductors
- Round conductors
- Isolated cables
- Insulated cables
- Other suitable down-conductor arrangements
The final conductor selection, routing and connection method should be determined according to the project design and applicable lightning protection requirements.
Sirius ESE Air Terminal Supplier in Pakistan
Electric Power Engineering (EPEPK) supplies Sirius ESE Air Terminal products in Pakistan.
EPEPK operates from Lahore and supplies electrical and lightning protection materials for commercial, industrial, solar and other project requirements across Pakistan.
For customers looking for a Sirius ESE Lightning Arrester in Pakistan, EPEPK can provide product information, technical details, availability and quotation support.
Why Choose EPEPK for TOPBAS Sirius Products?
EPEPK focuses on the supply of electrical and lightning protection materials for Pakistani projects.
Customers can contact the company for:
- Product availability
- Technical specifications
- Protection-radius information
- Project quantity requirements
- Lightning protection material
- Earthing material
- Solar earthing requirements
- Commercial quotations
- Nationwide supply
For project-based requirements, the required protection level, installation height and system configuration should be provided so that the appropriate product information can be reviewed.
Sirius ESE Lightning Arrester Price in Pakistan
The price of a Sirius ESE Air Terminal can depend on product availability, project quantity, accessories, mounting requirements and supply conditions.
For the current Sirius ESE Lightning Arrester price in Pakistan, contact EPEPK with your required quantity and project details.
For larger commercial or industrial projects, it is useful to provide:
- Required quantity
- Building or structure type
- Approximate height
- Protection level
- Project location
- Required down-conductor arrangement
- Earthing requirements
This allows the quotation to be prepared according to the project requirement.
Frequently Asked Questions
What is the Sirius ESE Air Terminal?
The Sirius ESE Air Terminal is a non-electronic Early Streamer Emission air terminal by TOPBAS, designed for use in external lightning protection systems.
Who manufactures the Sirius ESE Air Terminal?
The Sirius ESE Air Terminal is a TOPBAS product.
Where can I buy Sirius ESE Air Terminal in Pakistan?
Electric Power Engineering (EPEPK), Lahore, supplies TOPBAS Sirius ESE Air Terminal products in Pakistan. Contact EPEPK for current availability, specifications and quotation.
