About WISKA
WISKA Electrical Enclosures & Installation Materials
WISKA, a German family-owned manufacturer with over a century of electrical installation expertise, specializes in production of junction boxes, cable glands, weatherproof enclosures, lighting systems, and CCTV solutions for industrial, commercial, outdoor, and marine environments. The company serves electricians, installation contractors, system integrators, and OEM customers across Europe, North America, and emerging markets, with products designed for durability in harsh, moisture-laden, and corrosion-prone conditions.
The WISKA COMBI box series—the brand's flagship product line—provides practical, durable enclosures for electrical connections across domestic, commercial, industrial, and outdoor installations. COMBI boxes are adaptable (tool-free knock-out holes in various sizes), compact, and available in 13 standard sizes from 206 (compact, 4–6 connections) through 1610 (large, 20+ connections and complex wiring). All COMBI and WIB industrial boxes feature weatherproof ratings from IP54 to IP66 and wall-mount or flush-mount configurations.
WISKA cable glands (threaded and push-in types, brass and nickel-plated) seal the entry points where cables enter enclosures, preventing ingress of dust, moisture, and dirt. Silicone gels and potting compounds are available for additional electrical insulation and moisture blocking in high-humidity or submerged applications. Materials include die-cast aluminum (lightweight, corrosion-resistant), brass (durability, good conductivity), and polycarbonate/ABS (temperature tolerance, chemical resistance).
WISKA enclosures are rated for extreme environmental conditions: aluminum and brass boxes withstand salt-air and coastal exposure without rust (marine-grade certification), while UV-stabilized polycarbonate variants resist fading and embrittlement outdoors for 10+ years. Many models meet ATEX and IEC Ex certifications for hazardous (explosive) atmospheres, enabling deployment in petrochemical, mining, and grain-handling facilities.
ChatMRO's AI procurement assistant lets you specify your enclosure need—box size, wall-mount or flush, environmental rating (IP54, IP66, IP67), material preference (aluminum, brass, polycarbonate), and cable-gland count—and instantly retrieves matching WISKA boxes, glands, potting materials, and accessories from our indexed catalog, eliminating manual size tables or electrical-supply distributor delays.
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Frequently asked questions
What's the difference between WISKA COMBI and WIB industrial boxes?
WISKA COMBI boxes are modular and adaptable, with pre-molded knock-out holes for flexible cable-entry positioning and internal wiring rearrangement, ideal for electricians who need to customize entry points on-site. WIB industrial boxes are pre-drilled for fixed cable locations and are recommended for OEM installations and fixed equipment designs. COMBI is preferred for field flexibility; WIB for production-line consistency.
How do I choose between IP54, IP66, and IP67 enclosure ratings for outdoor installations?
IP54 provides dust and splash protection (light rain/hose-water safe) for covered outdoor areas and workshops. IP66 provides complete dust protection and water-jet protection (heavy spray/washing safe) for exposed outdoor environments and marine decks. IP67 provides full submersion protection (up to 1 meter, 30 minutes) for installations in flood-prone areas or at-sea marine equipment. IP66 is standard for most outdoor electrical installations; IP67 is specified only where full temporary or permanent submersion is expected.
What cable-gland sizes does WISKA offer, and how do I select the right one for my cable?
WISKA cable glands are available in M16, M20, M25, M32, M40, and M63 thread sizes (metric ISO), with bore sizes accommodating cable diameters from 2mm to 32mm depending on gland type. Measure your cable's outer diameter and select the gland's maximum bore to exceed that diameter with minimal clearance (tight fit reduces risk of water ingress). Compression-washer designs on WISKA glands seal around the cable automatically as you tighten the thread.
Can WISKA junction boxes be used in hazardous (explosive) atmospheres?
Some WISKA models carry ATEX and IEC Ex certifications for use in flammable-gas or combustible-dust environments (e.g., petrochemical plants, grain mills). Certified models are marked with the ATEX/IEC symbol and notified-body approval number. Standard non-certified COMBI and WIB boxes are not suitable for hazardous locations; always verify certification markings if your installation site requires ATEX compliance.
What's the best way to seal WISKA junction boxes against moisture and corrosion in marine environments?
Use stainless-steel cable glands, silicone-gel potting around internal connections (if cable count is low and future access isn't required), and aluminum or stainless-steel enclosures rather than polycarbonate. Annually inspect gaskets and seals for cracks or discoloration, and rinse the exterior with fresh water after salt-spray exposure. Apply a thin coat of silicone sealant around the gasket perimeter if long-term (5+ year) submersion is expected.