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Fleks
Underground Box

Images are for illustration; refer to the table for dimensions.

Enclosures, Junction Boxes & Boards

Underground Box

Manhole (underground box) for buried cable routes, in four sizes from 200×200×200 mm to 550×550×500 mm. The cover and the cover frame are sold separately.

  • 200×200×200–550×550×500 mm

Technical data

Size range
200×200×200–550×550×500 mm

Size table

The + button at the start of a row adds that size to your quote list. You set the quantity on the quote page.

Manhole4 sizes

Underground Box, Manhole: size table
Item codeSize (mm)Pack (pcs)Volume (m³)Weight (kg)
F.23.2020200×200×200200.0221.3
F.23.3030300×300×300120.0334.2
F.23.4040400×400×40040.2723.5
F.23.5555550×550×50020.3219.1

Parts sold separately4 sizes

Underground Box, Parts sold separately: size table
Size (mm)Frame codeCover code
200×200×200FLX.9150FLX.9145
300×300×300FLX.9151FLX.9109
400×400×400FLX.9152FLX.9119
550×550×500FLX.9153FLX.9135

Sizes are taken from the 2026 product catalogue. Contact us for current stock and custom sizes.

From the same group

Let us choose the right conduit for your project together

Send us the item code, size and quantity, and we will prepare your quote.