How to Pick an Electrical Enclosure
Electrical enclosures are critical for protecting equipment in industries like automation, energy, and telecom. This guide outlines essential selection criteria—such as sealing, corrosion resistance, mechanical strength, and thermal management—and highlights the advantages of Galvar’s bonded enclosures over traditional welded designs.
The SZK-B is a large, free-standing enclosure built with patented GALVAR® bonding and riveting technology. This innovative process eliminates welding, preserving the zinc coating of steel sheets and delivering exceptional corrosion resistance.
- Protective zinc coating remains intact
- High joint tightness ensured by bonding
- Compatible with different materials
- Optional 5-year warranty
- Ingress Protection: IP55 (IP66 on request)
- Impact Resistance: IK10
- Operating Temperature Range: –40°C to +80°C
For enclosures requiring higher ingress protection, please specify this in your inquiry.
- Body: assembled construction
- Roof: bolted to the enclosure body
- Closure: hinged door with a 105° opening angle; handle-type lock with snap-in key insert option
- Enclosures ≥1000 mm wide are supplied with double-leaf doors
- Mounting Plate: 2 mm galvanized steel on perforated brackets with adjustable depth
- Cable Entry: bottom gland plate (dimensions depend on enclosure width)
- Earthing: threaded grounding studs on the door and enclosure body
- Door includes an internal reinforced frame made of perforated profiles for easy component mounting
- Thermal insulation
- Extended operating temperature range: –50°C to +120°C
- Custom dimensions
- Pre-drilled holes in the door, body, or mounting plate
- Painting in any RAL colour
Electrical enclosures are crucial components in modern industry, protecting sensitive equipment and ensuring safe, reliable system operation across industrial automation, energy distribution, and telecommunications applications. The right enclosure choice directly impacts system performance and longevity.
- Sealing and Ingress Protection (IP): Essential for protecting against moisture, dust, and contaminants, particularly in dusty environments, food processing facilities, or areas exposed to water.
- Corrosion Resistance: Materials like stainless steel, aluminium, and anti-corrosion coated steel provide long service life. Bonded Galvar enclosures offer superior corrosion resistance compared to welded alternatives.
- Mechanical Strength: High-strength materials like steel or reinforced composites ensure reliability under industrial conditions including vibration, impacts, and shocks.
- Thermal Management: Proper cooling through passive ventilation, heat exchangers, or active cooling systems is crucial for component longevity and reliable operation.
- UV and Chemical Resistance: Powder-coated finishes and specialist surface treatments protect against environmental degradation in chemical, petrochemical, and pharmaceutical applications.
- Installation and Maintenance: Modular designs with easy access to components reduce downtime and simplify servicing.
While traditional welded enclosures are common, bonded enclosures like the Galvar range offer significant advantages: seamless joints for better sealing, elimination of weld corrosion risks, stronger yet lighter structures, and more efficient assembly and installation. This innovative approach delivers superior performance and reliability in demanding environments.