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Underfloor installation duct flush floor open

Underfloor installation ducts, also known as floor raceways or flush floor trunking systems, are designed for embedding directly into concrete screeds or raised access floors to provide a concealed pathway for electrical, data, and communication cabling. These systems typically consist of a metal or PVC-U channel with a removable cover plate tha...

Underfloor installation ducts, also known as floor raceways or flush floor trunking systems, are designed for embedding directly into concrete screeds or raised access floors to provide a concealed pathway for electrical, data, and communication cabling. These systems typically consist of a metal or PVC-U channel with a removable cover plate that sits flush with the finished floor surface, ensuring no trip hazards. Key technical specifications include channel dimensions (width, depth, and length), material grade (e.g., galvanized steel for high load-bearing capacity or impact-resistant PVC for lighter applications), and load classification (e.g., light, medium, or heavy duty per EN 50085). Accessories such as dividers for segregation of power and data cables, junction boxes, and floor outlets are integral to maintaining system integrity and compliance with low-voltage regulations.

These ducts are primarily installed in commercial office buildings, educational institutions, hospitals, retail spaces, and data centers where flexibility in workstation layout is critical. They are embedded in concrete floor slabs or installed within raised floor systems to allow for easy reconfiguration of power and data points without the need for disruptive core drilling or surface-mounted trunking. The flush design makes them ideal for open-plan environments, exhibition halls, and laboratories where aesthetics and accessibility are paramount.

Key subcategories within this category include single-compartment ducts, multi-compartment ducts with segregated channels, and adjustable-height ducts for varying screed depths. Common article codes often follow a pattern such as "UFD-XXXX-YY" where "UFD" denotes underfloor duct, "XXXX" indicates the channel width in millimeters (e.g., 0100 for 100mm), and "YY" specifies the length in meters (e.g., 03 for 3m). Examples include UFD-0100-03 for a 100mm wide, 3m long duct and UFD-0200-02 for a 200mm wide, 2m long duct. These codes are standardized across major manufacturers to simplify specification and ordering.

Partnering with Electric Automation Network ensures access to a comprehensive inventory of underfloor duct systems with real-time pricing and global express shipping. Our team of electrical engineers provides personalized technical support to help you select the correct load class, material, and accessories for your specific project requirements, including detailed documentation on installation methods and compliance with international standards such as IEC 61439.

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Manufacturer Code Reference Catalog Number Description Delivery Price

7402040

OKA DG4 300

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Mounting lid for trunking system OKA2, 800x300x4, Strip-galvanised, DIN EN 10147, Steel, St

Mounting lid for GES4, 800 mm. With mounting opening for the installation of an installation unit of nominal size 4. Mounting opening closed with blanking lid plate. Lid fixing screws contained in scope of delivery.

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7402048

OKA DG4 400

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Mounting lid for trunking system OKA2, 800x400x4, Strip-galvanised, DIN EN 10147, Steel, St

Mounting lid for GESR9, 800 mm. With mounting opening for the installation of an installation unit of nominal size 4. Mounting opening closed with blanking lid plate. Lid fixing screws contained in scope of delivery.

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7402068

OKA DGR9 400

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Mounting lid for trunking system OKA2, Strip-galvanised, DIN EN 10147, Steel, St

Mounting lid for GESR9, 800 mm. With mounting opening for the installation of an installation unit of nominal size R9. Mounting opening closed with blanking lid plate. Lid fixing screws contained in scope of delivery.

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7403811

OKB E 25085 ON

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Flushfloor trunking unit blank, 2000x250x85, Steel, St

OKB supply trunking. Ready-to-mount trunking unit for cable routing, consisting of a trunking base with two covers. The scope of delivery contains two lid butt seals and one connector. For height adjustment, six height adjustment units are required. Load capacity up to a maximum of 5 kN. The trunking unit can be supplemented with an adjustable floor covering contact profile for screed limitation in areas of door frames and in front of radiator niches.

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7403816

OKB U 25085 BLON

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Flushfloor trunking unit with brush bar, 2000x250x93, Steel, St

Trunking unit with brush bar. Ready-to-mount trunking unit for cable routing and device installation, consisting of a trunking base with two covers and a height-adjustable brush bar. The scope of delivery contains two lid butt seals and one connector. For height adjustment, six height adjustment units are required. Load capacity up to a maximum of 5 kN. The trunking unit can be supplemented with an adjustable covering contact profile for screed limitation in areas of door soffits and in front of radiator alcoves.

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7403818

OKB U 25085 BD

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Flushfloor trunking unit with blanking lid, 2000x250x93, Strip-galvanised, DIN EN 10147, Steel, St

Trunking unit with blanking lid. Ready-to-mount trunking unit for cable routing and device installation, consisting of a trunking base with two blanking covers. The scope of delivery contains two lid butt seals and one connector. For height adjustment, six height adjustment units are required. Load capacity up to a maximum of 5 kN. The trunking unit can be supplemented with an adjustable floor covering contact profile for screed limitation in areas of door frames and in front of radiator niches.

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7403826

OKB IE 25085 ON

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Internal corner with brush bar, 421x421x87, Steel, St

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7403845

OKB DSD 250

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Lid butt seal for trunking system OKB, Strip-galvanised, DIN EN 10147, Steel, St

Lid butt seal. For underlaying the joints.

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7424400

OKA-W2004030

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Flushfloor trunking unit blank, 2400x200x40, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W2004030 pavement flush channel, blind 2400x200x40 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 40−70 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424402

OKA-W3004030

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Flushfloor trunking unit blank, 2400x300x40, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W3004030 flush pavement channel, blind 2400x300x40 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 40−70 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424404

OKA-W4004030

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Flushfloor trunking unit blank, 2400x400x40, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W4004030 flush pavement channel, blind 2400x400x40 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 40−70 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424406

OKA-W5004030

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Flushfloor trunking unit blank, 2400x500x40, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W5004030 flush pavement channel, blind 2400x500x40 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 40−70 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424408

OKA-W6004030

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Flushfloor trunking unit blank, 2400x600x40, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W6004030 flush pavement channel, blind 2400x600x40 Steel, St, galvanized in band, DIN EN 10346

Trunking unit, blank, height 40−70 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424420

OKA-W2006050

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Flushfloor trunking unit blank, 2400x200x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W2006050 pavement flush channel, blind 2400x200x60 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 60−110 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424422

OKA-W3006050

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Flushfloor trunking unit blank, 2400x300x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W3006050 pavement flush channel, blind 2400x300x60 Steel, St, galvanized in band, DIN EN 10346

Trunking unit, blank, height 60−110 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424424

OKA-W4006050

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Flushfloor trunking unit blank, 2400x400x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W4006050 flush pavement channel, blind 2400x400x60 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 60−110 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424426

OKA-W5006050

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Flushfloor trunking unit blank, 2400x500x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W5006050 flush pavement channel, blind 2400x500x60 Steel, St, galvanized in band, DIN EN 10346

Trunking unit, blank, height 60−110 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424428

OKA-W6006050

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Flushfloor trunking unit blank, 2400x600x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W6006050 flush pavement channel, blind 2400x600x60 Steel, St, galvanized in band, DIN EN 10346

Trunking unit, blank, height 60−110 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424440

OKA-W20010050

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Flushfloor trunking unit blank, 2400x200x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W20010050 flush pavement channel, blind 2400x200x100 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 100−150 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424442

OKA-W30010050

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Flushfloor trunking unit blank, 2400x300x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W30010050 flush pavement channel, blind 2400x300x100 Steel, St, galvanized in band, DIN EN 10346

Trunking unit, blank, height 100−150 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424444

OKA-W40010050

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Flushfloor trunking unit blank, 2400x400x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W40010050 flush pavement channel, blind 2400x400x100 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 100−150 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424446

OKA-W50010050

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Flushfloor trunking unit blank, 2400x500x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W50010050 flush pavement channel, blind 2400x500x100 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 100−150 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424458

OKA-W60010050

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Flushfloor trunking unit blank, 2400x600x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W60010050 pavement flush channel, blind 2400x600x100 Steel, St, strip galvanized, DIN EN 10346

Trunking unit, blank, height 100−150 mm. Ready-to-mount trunking unit with three blanking lids for cable laying, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed on for delivery.

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7424600

OKA-W3006050D4

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Flushfloor trunking unit for service unit GES14, 2400x300x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W3006050D4 pavement flush channel, for conj. portam. GES4 2400x300x60 Steel, St, strip galvanized, DIN EN 10346

Channel unit for GES4, height 60-110 mm

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7424602

OKA-W4006050D4

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Flushfloor trunking unit for service unit GES15, 2400x400x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W4006050D4 pavement flush channel, for conj. portam. GES4 2400x400x60 Steel, St, strip galvanized, DIN EN 10346

Trunking unit for GES4, height 60−110 mm. Ready-to-mount trunking unit with three or six device installation lids for cable laying and the installation of flush-mount units of nominal size 4, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid with blank covered mounting opening. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed down when delivered.

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7424620

OKA-W30010050D4

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Flushfloor trunking unit for service unit GES18, 2400x300x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W30010050D4 pavement flush channel, for conj. portam. GES4 2400x300x100 Steel, St, strip galvanized, DIN EN 10346

Trunking unit for GES4, height 100−150 mm. Ready-to-mount trunking unit with three or six device installation lids for cable laying and the installation of flush-mount units of nominal size 4, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid with blank covered mounting opening. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed down when delivered.

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7424622

OKA-W40010050D4

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Flushfloor trunking unit for service unit GES19, 2400x400x100, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W40010050D4 pavement flush channel, for conj. portam. GES4 2400x400x100 Steel, St, strip galvanized, DIN EN 10346

Trunking unit for GES4, height 100−150 mm. Ready-to-mount trunking unit with three or six device installation lids for cable laying and the installation of flush-mount units of nominal size 4, consisting of the trunking base (floor trough with side and floor covering contact profiles) and trunking lid with blank covered mounting opening. Floor trough with holding straps for self-contacting mounting of separating retainers. The scope of delivery contains 6 height-adjustable fixing brackets, 6 screed anchors and lid butt seals (3x for nominal trunking widths of 200 and 300) or height-adjustable lid butt supports: 3x for nominal trunking width 400 and 6x for nominal trunking widths 500 and 600. Trunking lid screwed down when delivered.

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7424662

OKA-W4006050D6

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Flushfloor trunking unit for service unit GES6, 2400x400x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W4006050D6 pavement flush channel, for conj. portam. GES6 2400x400x60 Steel, St, strip galvanized, DIN EN 10346

Trunking unit for GES6, height 60−110 mm. Ready-to-mount trunking unit with three or six device installation lids for cable laying and the installation of installation units of nominal size 6, consisting of the trunking base (floor trough with side and floor covering guide profiles) and trunking lid with blank mounting opening. Floor trough with holding shackles for self-contacting mounting of dividers. The scope of supply contains six height-adjustable wall fixing brackets, six screed anchors and three height-adjustable cover joint supports for nominal trunking width 400 or six height-adjustable cover joint supports for nominal trunking widths 500 and 600. Trunking lid screwed down when delivered.

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7424682

OKA-W40010050D6

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Flushfloor trunking unit for service unit GES6, 2400x400x100, Strip-galvanised, DIN EN 10147, Steel, St

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7424720

OKA-W4006050D9

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Flushfloor trunking unit for service unit GES9, 2400x400x60, Strip-galvanised, DIN EN 10147, Steel, St

OKA-W4006050D9 pavement channel, for conj. portam. GES9 2400x400x60 Steel, St, strip galvanized, DIN EN 10346

Trunking unit for GES9, height 60−110 mm. Ready-to-mount trunking unit with three or six device installation lids for cable laying and the installation of installation units of nominal size 9, consisting of the trunking base (floor trough with side and floor covering guide profiles) and trunking lid with blank mounting opening. Floor trough with holding shackles for self-contacting mounting of dividers. The scope of supply contains six height-adjustable wall fixing brackets, six screed anchors and three height-adjustable cover joint supports for nominal trunking width 400 or six height-adjustable cover joint supports for nominal trunking widths 500 and 600. Trunking lid screwed down when delivered.

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