Junction & Terminal Boxes

BARTEC Junction & Terminal Boxes for Hazardous Areas

ESI, ESP, ESA, ESX, GWR & TNCN Junction and Terminal Boxes

IECEx & ATEX-Certified Enclosures for Zone 1, Zone 2, Zone 21 and Zone 22

BARTEC junction and terminal boxes provide certified connection and termination solutions for electrical equipment used in hazardous areas and explosive atmospheres.

Designed for Zone 1 and Zone 2 gas environments as well as Zone 21 and Zone 22 dust environments, the BARTEC ESI, ESP, ESA, ESX, GWR and TNCN ranges offer reliable protection for power, control, instrumentation and signal wiring in demanding industrial applications. BARTEC lists these junction box ranges as certified options for Zone 1/2 and Zone 21/22 installations, with stainless steel, aluminium and GRP enclosure options available.

Available in multiple materials, sizes and configurations, these enclosures support both standardised and customised hazardous area installations.

Built for harsh hazardous area environments

In hazardous areas, junction boxes and terminal boxes are critical to maintaining electrical safety, explosion protection and long-term asset integrity.

BARTEC junction and terminal boxes are engineered for use in challenging environments where equipment may be exposed to:

  • Extreme temperatures
  • Corrosive atmospheres
  • Mechanical loads
  • Dust, water and weather exposure
  • Offshore, petrochemical and industrial conditions

Depending on the selected range, BARTEC offers stainless steel, aluminium and glass-fibre reinforced polyester options, with IP-rated protection and certified Ex protection concepts for hazardous area use.

Why choose BARTEC Junction & Terminal Boxes?

Certified for hazardous areas

BARTEC junction and terminal boxes are designed for use in explosive atmospheres, with ATEX and IECEx certification options covering gas and dust applications. The ESI range, for example, includes IECEx markings for Ex eb ia ib IIA, IIB or IIC and Ex tb IIIC dust protection.

Multiple materials to suit site conditions

The range includes enclosure options in:

  • Stainless steel
  • Aluminium
  • Glass-fibre reinforced polyester
  • Polycarbonate / GRP configurations, depending on selected model

This allows the enclosure material to be selected based on corrosion resistance, weight, mechanical durability and environmental exposure.

Customisable for project requirements

BARTEC offers preassembled junction and terminal boxes as well as customer-specific design variants, allowing solutions to be tailored to the application, cable entries, terminals, protection requirements and site layout.

Suitable for extreme conditions

Selected BARTEC stainless steel ranges are designed for aggressive environments, including chemical exposure, seawater corrosion and high mechanical stress. The TNCN stainless steel 316L range is specifically described by BARTEC as suited to environments where explosive atmospheres may be present, including chemical agent environments, seawater corrosion and temperature extremes.

Long service life

Durable housing materials, high IP protection and corrosion-resistant construction help extend service life and reduce maintenance requirements in harsh operating environments.

Key Benefits

  • Supports hazardous area compliance
    Certified enclosure options assist with compliant electrical installations in explosive atmospheres.
  • Protects electrical connections in harsh environments
    Robust materials and IP-rated construction help protect terminals, cables and internal components.
  • Allows correct enclosure selection for each application
    Multiple materials and sizes make it easier to match the enclosure to site conditions.
  • Reduces installation and procurement complexity
    Preassembled and custom-built options support faster, more practical project delivery.
  • Improves long-term reliability
    Durable construction supports long service life in demanding industrial environments.
  • Suitable for gas and dust hazardous areas
    Designed for Zone 1/2 and Zone 21/22 applications, depending on configuration and certification.

Key Features

  • BARTEC ESI, ESP, ESA, ESX, GWR and TNCN product ranges
  • Certified for Zone 1, Zone 2, Zone 21 and Zone 22 applications
  • ATEX and IECEx certification options
  • Ex eb, Ex ia/ib and Ex tb protection concepts, depending on configuration
  • Stainless steel, aluminium and GRP enclosure materials
  • IP66 protection, depending on selected range and configuration
  • Preassembled and custom-made solutions available
  • Suitable for power, control, instrumentation and signal wiring
  • Designed for demanding industrial and hazardous area environments

Applications

BARTEC junction and terminal boxes are suitable for hazardous area electrical installations across:

  • Oil & gas facilities
  • LNG and hydrogen facilities
  • Petrochemical plants
  • Mining and mineral processing sites
  • Defence and critical infrastructure
  • Chemical processing facilities
  • Offshore and marine environments
  • Dust hazardous areas and bulk material handling sites

Typical applications include:

  • Power cable termination
  • Instrumentation wiring
  • Control circuit termination
  • Signal wiring connections
  • Field junction boxes
  • Terminal enclosures
  • Equipment interface boxes
  • Skid-mounted hazardous area systems

Product range overview

ESI Junction & Terminal Boxes

Stainless steel Ex e junction and terminal boxes for Zone 1 and Zone 21 applications. BARTEC notes that ESI stainless steel housings are designed and approved for Zone 1/2 and Zone 21/22, with V2A/V4A stainless steel materials and customer-specific design variants available.

ESP Junction & Terminal Boxes

GRP / polyester Ex e junction boxes designed for hazardous area applications where lightweight, corrosion-resistant housing materials are required.

ESA Junction Boxes

Aluminium Ex e junction boxes for hazardous area electrical connections where robust metallic enclosures are preferred.

ESX Junction Boxes

Stainless steel Ex e junction boxes designed for demanding industrial environments. BARTEC describes the ESX stainless steel range as suitable for extreme environmental conditions, aggressive chemical media and high mechanical stress.

GWR Enclosures

GRP Ex e enclosures suitable for Zone 1/2 and Zone 21/22 installations where corrosion resistance and non-metallic construction are required.

TNCN Junction Boxes

High-quality stainless steel 316L junction boxes for Zone 1/2 and Zone 21/22 environments. BARTEC lists TNCN features including stainless steel 316L construction, multiple standard sizes, custom size/design options, multiple grounding points and standard IP66/67/68 ingress protection.

Technical specifications

Specification Details
Product Types ESI, ESP, ESA, ESX, GWR, TNCN
Materials Aluminium, glass-fibre reinforced polyester, stainless steel
Hazardous Area Zones Zone 1, Zone 2, Zone 21, Zone 22
Gas Groups IIA, IIB, IIC depending on configuration
Dust Groups IIIA, IIIB, IIIC depending on configuration
Temperature Classes T6, T5, T4, T3
Dust Surface Temperatures T80°C, T95°C, T130°C depending on configuration
Voltage Up to 1000V*
Nominal Current Up to 690A*
Maximum Cross-Section Up to 400mm²*
Ambient Temperature Dependent on installed components; up to -60°C to +80°C depending on configuration

*Final electrical ratings depend on the installed components, equipment configuration, protection level, operating conditions and certification limits.

Certification

ATEX Marking

Type 07-3T**-****/****

Gas:
II 2G Ex eb ia ib IIA, IIB or IIC T6, T5, T4 or T3 Gb

Dust:
II 2D Ex tb ia ib IIIA, IIIB or IIIC, T80°C, T95°C or T130°C Db

IECEx Marking

Type 07-3T**-****/****

Gas:
Ex eb ia ib IIA, IIB or IIC T6, T5, T4 or T3 Gb

Dust:
Ex tb ia ib IIIA, IIIB or IIIC, T80°C, T95°C or T130°C Db

Global certifications

Available certifications include:

  • ATEX: IBExU 12 ATEX 1099X
  • IECEx: IECEx IBE 12.0031X
  • CSA: 2515401
  • NEPSI: GYJ20.1064
  • CCC: 2020322304001711
  • INMETRO: UL-BR 11.0118
  • PESO: A/P/HQ/UP/104/5577 (P470774)
  • ECASEx: 23-06-75816 / E23-05-076028 / NB000

Supplied and supported by Inlex

Inlex supplies BARTEC junction and terminal boxes with specialist hazardous area support to help ensure the correct enclosure is selected, configured and documented for your application.

Our team can assist with:

  • Product selection and hazardous area suitability review
  • Material and enclosure size selection
  • Terminal and cable entry configuration
  • Certification and documentation review
  • Integration into hazardous area electrical systems
  • Installation, inspection and maintenance support

This ensures your junction and terminal boxes are not only supplied, but properly aligned with site requirements and hazardous area compliance obligations.

BARTEC products backed by EEHA expertise

As a hazardous area specialist, Inlex supports the full lifecycle of Ex equipment — from selection and supply through to installation, inspection, maintenance, repair and overhaul.

This makes Inlex a practical partner for facilities that require more than product supply alone.

Need hazardous area junction or terminal boxes?

If your project requires certified junction boxes, terminal boxes or custom Ex enclosures, Inlex can help you select and supply the right BARTEC solution for your site.

Contact our team to discuss your hazardous area electrical product requirements.

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