Technical Resources

Every question
a buyer asks,
answered in writing.

Cost guides. Protection method explainers. Zone classification. Material comparisons. Compliance checklists. Written for design engineers, specifiers and procurement teams, no paywalls, no forms.

18Technical articles
4Big 5 content types
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All
ATEX Technical
Selection Guide
Cost & Pricing
Comparison
Problems & Risks
Certification
Installation
All articles
ATEX Technical 5 articles
ATEX Technical 7 min

What is Ex eb increased safety protection?

Ex eb prevents sparks and hot surfaces under normal and abnormal conditions, the most common protection method for terminal boxes.

ATEX Technical 6 min

What are ATEX enclosures?

A plain-English overview: what ATEX is, why it exists, who needs it, and how certified enclosures are specified.

ATEX Technical 12 min

What ATEX protection methods are available?

Ex e, Ex d, Ex ia, Ex p, Ex n, Ex tb, the full set of protection concepts, with application guidance for each.

ATEX Technical 8 min

How are ATEX hazardous areas classified into zones?

Zone 0, 1, 2, 20, 21, 22, how each is defined, who classifies them, and what enclosure marking is required in each.

ATEX Technical 8 min

What is Ex nR restricted breathing protection?

How Ex nR uses a sealed IP66 enclosure to exclude hazardous atmospheres in Zone 2, and how indEx self-certifies for it.

Selection Guide 1 article
Selection Guide 11 min

How do I choose the right ATEX enclosure for my application?

A step-by-step guide: zone, protection concept, material, IP rating, entries. With worked examples.

Cost & Pricing 1 article
Cost & Pricing 7 min

What affects the price of a custom stainless steel enclosure?

Material grade, wall thickness, IP rating, finish, gland holes, quantity, what moves the price and by how much.

Comparison 1 article
Comparison 9 min

How do UK enclosure manufacturers compare?

A factual comparison of UK manufacturers by capability, lead time, certification scope and manufacturing location.

Problems & Risks 1 article
Problems & Risks 10 min

What are the critical mistakes when specifying ATEX enclosures for vessels?

Seven specification errors that lead to certification failure or site rejection on offshore and marine projects.

Certification 3 articles
Certification 8 min

What does ATEX certification involve?

The certification process: notified body testing, EC-type examination, documentation, and ongoing surveillance.

Certification 10 min

How do I ensure ATEX compliance for my installation?

Compliance obligations for equipment manufacturers and installation contractors under ATEX Directive 2014/34/EU.

Certification 6 min

What is the ATEX compliance checklist for refinery installations?

A practical checklist for specifying engineers and safety managers: documentation, marking, installation verification.

Installation 1 article
Installation 10 min

How do I install and maintain an iTB or iSTB enclosure?

Official installation and maintenance instructions for iTB terminal boxes and iSTB junction boxes — mounting, glanding, torque values, wiring and periodic inspection.

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The questions we're
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Most competitors won't publish this content. We will. These pages are in writing now, cost guides, comparisons, and problem articles that help buyers make better decisions before they call anyone.

Cost & Pricing Priority

How much does an ATEX enclosure cost?

Price ranges by product type, what moves the number, and how to get an instant indicative price online.

, Publishing shortly
Comparison Priority

GRP vs stainless steel, which enclosure material should I choose?

A side-by-side comparison of properties, cost, IP performance, and application suitability.

, Publishing shortly
Comparison

Zone 1 vs Zone 2, what's the difference and which enclosure do I need?

Zone classification explained with product and certification implications for each zone.

Comparison

Ex d vs Ex e, which protection method is right for my application?

Flameproof vs increased safety: cost, complexity, maintenance burden and application suitability.

Comparison

304 vs 316 stainless steel, which grade for which environment?

Chloride resistance, weldability, and cost differences between the two most common grades.

Problems & Risks

Why do ATEX enclosures fail UK certification inspection?

The most common certification failures and how to avoid them at the specification stage.

Cost & Pricing

GRP vs stainless steel, what is the cost difference?

A frank comparison of material costs, fabrication differences and total installed cost.

Case Studies

indEx in the field.

Real projects, documented. Follow our work on Instagram and LinkedIn.

Certifications

Paperwork that matches
the metalwork.

Every enclosure ships with its Declaration of Conformity and certificate. Current certificate numbers are listed below, click to download the PDF.

All certificates, download PDF
ATEX CML 18ATEX3300X II 2 G Ex e IIC. Stainless steel and mild steel terminal boxes and junction boxes. Primary product certificate. PDF ↓ ATEX CML 18ATEX3416U ATEX quality assurance notification. Manufacturing quality system assessment for the iTB range. PDF ↓ ATEX CML 18ATEX3417X II 2 G Ex e IIC. Supplementary ATEX certificate covering additional size variants. PDF ↓ ATEX CML ATEXQ13081 ATEX quality assurance notification. CML-approved manufacturing facility quality audit. PDF ↓ UKCA GB/CML/QAR20.0009 UK Conformity Assessed. Domestic UK market approval post-Brexit, equivalent scope to ATEX. PDF ↓ IECEx IECEx CML 18.0228U IECEx quality assessment report. Manufacturing quality system for international market supply. PDF ↓ IECEx IECEx CML 18.0229X Ex e IIC. International certification for stainless steel and mild steel terminal boxes. PDF ↓ IECEx IECEx CML 19.0068X Ex e IIC. Supplementary IECEx scope covering extended size and configuration range. PDF ↓ ATEX GRP EPS 13 ATEX 1616X II 2 G Ex e IIC. GRP glass-reinforced polyester enclosures. Issued by EPS Notified Body. PDF ↓ ISO ISO 9001:2015 Quality management system. Covers design, manufacture and supply of certified electrical enclosures. PDF ↓
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