Explosion-proof junction boxes [zone 0, 1, 2, 21, 22]
HARDO manufactures customized explosion-proof junction boxes for zones 0, 1, 2 (for gases and vapors) and 21, 22 (for dust). You have full control over the selection of the type, size and mounting location of glands and cable terminals. We perform thermal analysis for each box and issue ATEX and IECEx certificates. Explosion-proof boxes can be made of aluminum, stainless steel or fiberglass-reinforced polyester.
Glass fibre reinforced polyester used to manufacture the HTBP series terminal boxes have been selected to grant the maximum protection against highly corrosive agents and maximum UV protection. Cover screws are made of stainless steel AISI 316L. Cover gasket is made of silicone. Internal mounting screws are made of non-corrosive material. Wide variety of enclosure sizes allows to accommodate all customers' requests.
Product features
Cable entries available on all sides.
Polyamide or metallic cable glands can be used.
IP 65/66 rating.
Certification
ATEX Certification.
IECEx Certification.
EU-Declaration of conformity.
HTBS series stainless steel terminal boxes are designed for extremely harsh industrial hazardous areas with features of high anti-corrosion, water ingress and dust protection. Our stainless steel terminal boxes are developed to meet strict requirements of the chemical, pharmaceutical and oil & gas industries. Applications include both, onshore and offshore installations. HTBS series stainless steel terminal boxes are available in a variety of sizes allowing for a vast and flexible arrangement of connecting terminals. Custom sizes are also available.
Product features
Stainless steel AISI 316L.
Hinged cover available.
Internal mounting plates are available.
Cable glands plates are available.
Certification
ATEX Certification.
IECEx Certification.
EU-Declaration of conformity.
HTB1A series aluminium enclosures are manufactured from a low-copper (less than 0,1%) aluminium alloys and feature an external polyester powder coating (RAL 7001) anti-loosening bolts and earthing screws made from stainless steel alloy AISI 316L. Aluminium enclosures are available in a variety of sizes allowing for a vast and flexible range of heights. Aluminium Ex Terminal Boxes have excellent corrosion resistance which makes them ideal for a variety of offshore and onshore applications. In addition, they can meet the requirements to corrosion protection for chemical, petrochemical and harsh environments.
Product features
Hinged cover available.
Internal mounting plates are available.
Cable glands plates are available.
Certification
ATEX Certification.
IECEx Certification.
EU-Declaration of conformity.
Explosion-proof junction boxes: safety features
Explosion-proof junction boxes are designed for use in areas prone to explosions. These devices ensure the safe connection of electrical wires, eliminating the possibility of any component becoming a cause of ignition. Their high safety standard has been confirmed by international ATEX and IECEx certifications.
Explosion-proof junction boxes: ignition protection inside out
Our explosion-proof junction boxes are designed to avoid any risk of sparking or excessive heating of the housing, which could turn it into a source of ignition in an explosive atmosphere.
Protection against electrostatic sparks
The materials used for the enclosures, such as aluminum alloys, stainless steel or plastics with antistatic properties, do not accumulate static electricity. Steel and aluminum enclosures are also equipped with grounding systems.
Protection against overheating
The selection of components inside the boxes, their number, circuits and dimensions are carefully planned to prevent excessive heat generation. This careful selection is based on detailed calculations carried out prior to the production of each box model, which is made to special order, whether single units or small, or medium-quantity series.
Protection against electrical sparks
To prevent ignitions caused by jumping sparks, all components inside the boxes come with appropriate protection, as evidenced by ATEX and IECEx certifications.
Protection against mechanical damage
Mechanical strength is a key element considered when certifying explosion-proof boxes. That is why the enclosures of these devices are manufactured from high-resistance materials such as stainless steel, aluminum alloy or fiberglass-reinforced plastic.