Fibox polycarbonate also carries a wide operating temperature range, strong chemical resistance and UV stabilisation for prolonged outdoor exposure, along with high impact resistance rated to IK10 on the ARCA range. Combined with sealing to IP66 and above, that makes it a credible replacement for sheet steel in harsh and demanding locations rather than a budget compromise.
The Fibox range
ARCA – polycarbonate electrical enclosure
ARCA is Fibox's flagship polycarbonate electrical enclosure and industrial cabinet system, designed as a direct alternative to sheet steel for outdoor and industrial use. Units are moulded in grey (RAL 7035) polycarbonate, rated to IP66 and IK10, and supplied complete with door and PUR gasket, mounting plate, fixings and a double-bit lock, with two-point locking on larger cabinets.
ARCA T – transparent electrical enclosure
ARCA T carries the same construction as ARCA but with a clear, transparent door, making it an inspection and HMI enclosure where operators need to read displays, meters or indicators without opening the unit.
SOLID – heavy-duty electrical enclosure
SOLID is a robust, sealed enclosure for housing electronic and electrical components outdoors and in exposed positions, offering high ingress protection in a compact, wall-mountable format.
MNX – waterproof junction box
MNX is a range of polycarbonate and ABS junction boxes and enclosures built on world-class injection moulding, giving a sealed, IP66-rated box for connections, distribution and general electrical use.
MCE – DIN rail enclosure
MCE is a modular DIN rail enclosure range for housing DIN-rail-mounted devices such as terminal blocks, relays and controls in a clean, expandable format.
CAB – control cabinet
The CAB range provides larger non-metallic control cabinets for industrial control and automation, keeping the corrosion-free, lightweight benefits of polycarbonate at cabinet scale.
EK – terminal enclosure
EK is a terminal and connection enclosure range suited to housing equipment either as a single enclosure or as part of a flexible modular system.
TEMPO – ABS electrical enclosure
TEMPO is Fibox's general-purpose small enclosure range in ABS and polycarbonate, supplied with a PUR gasket, cover screws and fixings for a mounting plate or DIN rail. It suits compact housings for smaller assemblies where a full industrial cabinet is not needed.
Choosing the right Fibox enclosure
For a professional specification, work through the same core criteria on every project. Start with the environment and required ingress protection: IP66 and above for outdoor, wet or dusty locations, and check the impact rating (IK) where the enclosure is exposed to knocks. Confirm the internal volume and mounting-plate area against the components and gland plate you need to fit, allowing for cable bend radius and heat dissipation.
Then decide on access and mounting: a solid or transparent door (ARCA versus ARCA T) depending on whether operators need to see indicators; wall, pole or wall-mount fixing; and DIN rail versus panel mounting inside. Finish with the practical details – cable entries, glanding and any cut-outs for displays or switches. Fibox enclosures ship as sealed units, so where you need custom cut-outs or gland plates it is usually better to specify them rather than drill on site; Rapid's enclosure modification service handles this, and the range is supported by a full set of enclosure accessories including DIN-rail kits, pole-mount kits, mounting plates and inspection windows.
Fibox enclosures by industry
Water and wastewater
Corrosion-free polycarbonate suits water and wastewater sites, where pump control, dosing and utility enclosures face constant moisture and aggressive chemistry that would attack steel.
Renewable energy
For solar and PV installations and battery storage, Fibox enclosures provide UV-stable, outdoor-rated housings for inverters, controls and connections that stay sealed through years of exposure.
Traffic and mobility
Roadside traffic control, ITS and highway electrical enclosures benefit from lightweight, non-corroding cabinets that withstand weather, vibration and UV without ongoing maintenance.
Telecom and data
Telecom, fibre and communications enclosures need sealed, non-metallic housings that protect sensitive equipment outdoors while remaining RF-transparent and easy to install.
Food and beverage
In food processing, smooth, washdown-friendly polycarbonate enclosures resist cleaning chemicals and moisture, supporting hygienic installations where steel would corrode.
Buying Fibox enclosures
What are Fibox enclosures made of?
Fibox specialises in non-metallic enclosures, primarily polycarbonate and ABS, with some aluminium and stainless steel options. Polycarbonate is used for demanding outdoor and industrial applications because it is corrosion-proof, UV-stable, impact-resistant and electrically non-conductive.
Are Fibox enclosures waterproof?
Yes. The main ranges are sealed with a PUR gasket and rated to IP66 or above, protecting against dust and heavy water jets, which makes them suitable for outdoor and washdown environments. Always check the IP rating stated on the specific product.
What is the difference between ARCA and ARCA T?
ARCA has a solid opaque door; ARCA T has a clear transparent door. ARCA T is chosen as an inspection or HMI enclosure so operators can read displays and indicators without opening the unit. Both share the same polycarbonate construction and sealing.
Are polycarbonate enclosures suitable for outdoor use?
Yes. Fibox polycarbonate is UV-stabilised for prolonged outdoor exposure and does not corrode, so it is well suited to outdoor and coastal installations where sheet steel would eventually rust.
Which Fibox range is best for DIN-rail devices?
The MCE range is a modular DIN rail enclosure designed to house DIN-rail-mounted devices such as terminal blocks, relays and controls. Smaller TEMPO enclosures are also supplied with fixings for a mounting plate or DIN rail.
Can Fibox enclosures be modified for cable glands or displays?
Yes. Rather than drilling sealed enclosures on site, custom cut-outs, gland plates and holes for switches or displays can be specified through an enclosure modification service, which protects the IP rating and saves installation time.
Polycarbonate or ABS – which should I choose?
Polycarbonate offers higher impact resistance, a wider temperature range and better UV performance, making it the choice for demanding outdoor and industrial use. ABS is a cost-effective option for lighter-duty and general-purpose indoor housings, such as the TEMPO range.
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