MULTI-BOX Catalog Ex-Enclosures

Product catalog summary

Overview: The document provides comprehensive details on Multi-Box Ex-Enclosures, designed for use in potentially explosive environments. These enclosures are certified under various international standards and are suitable for zones with explosive gases, vapors, and dusts.

Certification and Standards: The enclosures are certified under the ATEX directive 94/9/EC with type examination certificates like IBExU 10 ATEX 1159/1158U. They comply with standards such as EN 60079-0, EN 60079-7, and EN 60079-31, ensuring safety in explosive atmospheres.

Types of Enclosures: Enclosures are categorized into Ex-empty, Ex-e (increased safety), and Ex-i (intrinsic safety), each designed for specific applications and environments, with detailed specifications on dimensions and materials.

Specifications: Made of aluminum, the enclosures are suitable for continuous operation temperatures from -55°C to +135°C and have a protection classification of IP 66, ensuring resistance to dust and water ingress.

Ignition Protection Types: Various ignition protection methods are outlined, including oil immersion, powder filling, grouting, and excess-pressure encapsulation, to prevent sparking and exclude explosive atmospheres from the enclosures.

Applications: Used in transformers, relays, sensors, and control systems, these enclosures prevent ignition in environments with gases like methane, propane, and hydrogen, as well as combustible dusts.

Accessories and Customization: Standard equipment includes lid screws, silicone lid seals, and earthing connections. Optional accessories and custom processing options are available, such as special threads, colors, and markings.

Conclusion: Multi-Box Ex-Enclosures offer robust solutions for safely housing electrical components in hazardous environments, with compliance to international standards and customizable features suitable for various industrial applications.

Standard Equipment:

Lid screws made of 1.4301 stainless steel, designed to be non-removable.
Silicone lid seal configured as an o-ring.
Exterior earthing connection accommodating sizes from 2.5 mm² to 120 mm².
Mounting rail options: TS 15/7.5 or TS 35/7.5.
Interior earthing connection points available via busbars, holding angles, or PE-terminals.
Markings include Ex II 2G Ex ia II C T6 to T4 Gb or Ex II 2D Ex tb III C T 85°C Db.
Type plate located on the outer side of the lid.
Powder-coating similar to RAL 7001.

Accessories on Demand:

Certified PE-terminals and series terminals.
Ex-tested cable glands and sealing plugs available in steel, brass, or polyamide.
Earthing busbars and bolts.
Mounting plates made of galvanized steel sheet.
Wall mounting brackets made of steel.
External hinges for the lid made of aluminum.

Processing on Demand:

Custom metric threads, PG-threads, pass drillings, and special threads, adhering to certification requirements.
Special colors according to RAL specifications.
Silk-screen printing or engraving for enclosure marking.
Description plates made of plastic.

Contact Information:

Multi-Box
Wallücker Bahndamm 7
DE-32278 Kirchlengern
Tel.: +49 5223 49107-0
Email: [email protected]
Fax: +49 5223 49107-28
Website: www.multi-box.com

Catalog excerpts

Ex-Enclosures Multi-Box Overview & Information Overview & Information

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Multi-Box Ex-Enclosures Overview & Information IBExU 10 ATEX 1159 / 1158U Year Ex identification according to standard (example) Relevant equipment [] Type approval number Use within the potentially explosive areas „Atmosphère explosible“ EC Directive Use outside of potentially explosive areas that effects the Ex area EC type examination certificate Identification no. Notified body / Official testing authority (example) EECS (BASEEFA) United Kingdom United Kingdom Additional requirements Conditions Equipment usable without restrictions Observe special requirements for use Ex component with partial...

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Ex-Enclosures Multi-Box Overview & Information Permitted surface temp. according to IEC 505 Gas group / Ignition energy CENELECmarking Methane Propane Ethylene Hydrogen Ignition temperature of gas Ammonia Methane Passive components Energy storage devices Energy sources* Methane Explosion hazard mines (coal mining) Group I 150 °C With deposits of coal dust on equipment 450 °C Without deposits of coal dust on equipment Distribution boxes Resistors Carbon disulphide Intrinsic safety, simple electrical equipment Combustible fluff Non-conductive dust Conductive dust Typical dusts Dust group Values...

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Multi-Box Ex-Enclosures Overview & Information Ex-Enclosures Types and Dimensions Dimensions Enclosure

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Ex-Empty Enclosures MULTI-BOX Ex empty enclosures made of aluminium are conform to all requirements for installation sectors where explosive concentrations of gases, steams and dusts can appear (zones 1 and 2 as well as 21 and 22). MBA-Ex-enclosures have a components certificate confirming constructive security to the mechanical component ‘enclosure’. Thus, the enclosure specific parameter does not have to be retested and reapproved when registering a new Ex-product which simplifies the approval process considerably. After installing approved electrical and electrotechnical components into the...

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MULTI-BOX Ex e-junction boxes are conform to all requirements for installation sectors where explosive concentrations of gases, steams and dusts can appear (zones 1 and 2 as well as 21 and 22). MBA-Exe-enclosures can be used in the temperature classes T4 up to T6. Temperature class 6 signifies that – even in case of the maximum assembly of terminals – the maximum temperature does not exceed 85°C neither inside nor outside the enclosure. Thus, combustible gases, steams and dusts cannot be fired. By the exterior earthing, the enclosures are included in the potential compensation. This completely...

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Ex-Enclosures Multi-Box Overview & Information MULTI-BOX Ex i-junction boxes are conform to all requirements for installation sectors where explosive concentrations of gases, steams and dusts can appear (zones 1 and as well as 21 and 22). MBA-Ex i-enclosures can be used in the temperature classes T4 up to T6. The explosion protection of so-called intrinsically safe enclosures « i » is based upon the low voltage and electricity connected in the enclosure (e.g. data or telephone lines). Thanks to the limit of ignition energy, the occurrence of a spark is absolutely impossible. Even rising the temperature...

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