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Installation cables

H07Z1-U

LSZH insulated solid wire, halogen-free, 450/750 V

450/750 V CPR Cca EN 50525-3-31
CU/LSZH On request Lead time: On request; the lead time is stated in the quote. Send your enquiry
Application

H07Z1-U is the halogen-free solid single-core wire for 450/750 V: a rigid copper conductor with LSZH insulation, from 1.5 to 10 mm². The solid conductor sits firmly in the terminal. For fixed installation in conduit and duct in buildings where many people gather. Supplied to order; the lead time is stated in the quote.

H07Z1-U is a harmonised single-core, non-sheathed wire with a solid plain copper conductor of class 1 and a halogen-free, low-smoke thermoplastic insulation, rated 450/750 V and manufactured in accordance with EN 50525-3-31 (Type 2). It is intended for fixed installation in surface-mounted or recessed conduit, trunking or closed installation ducts, and for protected fixed wiring inside lighting fittings, switchgear and control equipment, in buildings where many people gather and the emission of smoke and corrosive gases in the event of fire must be limited. The wire is available from 1.5 to 10 mm² in a range of colours. It is not intended for direct burial, outdoor use without protection, or for flexing in service.

Halogen-freeSolidConduit

Also known as: halogen-free wire · solid wire

Applications

  • Fixed installation in conduit or duct in buildings where halogen-free wire is specified.
  • Final circuits in small cross-sections, where a solid conductor must sit firmly in the terminal.
  • Protected fixed wiring in luminaires, switchgear and distribution boards.

What to look out for

  • Halogen-free and low smoke, but flame-retardant, not fire-resistant.
  • Solid does not bend easily; for many bends or larger sizes choose H07Z1-R or H07Z1-K.
  • Non-sheathed wire: install it in conduit or duct.
Construction
Conductor
Solid plain annealed copper, class 1 acc. to IEC 60228 / EN 60228.
Insulation
Halogen-free thermoplastic compound type TI7 acc. to EN 50363-7, low smoke emission; no outer sheath (non-sheathed core).
Core colours
Black, blue, brown, grey, white, red, green/yellow; other colours on request.
Electrical & thermal properties
CPR classification
Cca-s1,d2,a1 (EN 50575, halogen-free); B2ca-s1,d1,a1 on request.
Rated voltage Uo/U
450/750 V.
Test voltage
2,500 V AC.
Standard
EN 50525-3-31, Type 2 (HD 21.15); insulation compound acc. to EN 50363-7; conductors acc. to IEC 60228 / EN 60228.
Flame-retardant
Acc. to EN 60332-1-2 / IEC 60332-1-2; flame spread of bunched cables acc. to EN 60332-3-24 / IEC 60332-3-24 (Type 2).
Halogen-free
Acc. to EN 60754-1 / IEC 60754-1 and EN 60754-2 / IEC 60754-2; low smoke density acc. to EN 61034-2 / IEC 61034-2.
Conductor standard
IEC 60228 / EN 60228, class 1 (solid).
Max. conductor temperature
+70 °C (max. +150 °C for 5 s in short circuit).
Permitted surface temperature, fixed
−10 °C to +70 °C (min. +5 °C during installation).
Min. bending radius, fixed
6 × outer diameter.
Dimensions and technical data

Sizes and weights

Cross-section (mm²)Outer Ø approx. (mm)Weight approx. (kg/km)R DC 20 °C (Ω/km)
1.52.82012.1
2.53.4317.41
43.8464.61
64.4673.08
105.61101.83
Which one do I choose?

H07Z1-U or H07V-U?

H07Z1-U

  • halogen-free insulation

H07V-U

  • PVC insulation

Both are non-sheathed solid wires for 450/750 V and 70 °C. H07V-U has PVC insulation; H07Z1-U has halogen-free insulation that gives little smoke and little corrosive gas in a fire. Choose H07Z1-U where the specification calls for halogen-free wire; otherwise H07V-U is sufficient.

View H07V-U →

H07Z1-U or H07Z1-R?

H07Z1-U

  • solid (class 1)

H07Z1-R

  • stranded (class 2)

Both are non-sheathed halogen-free wires for 450/750 V and 70 °C. H07Z1-U has a solid conductor (class 1), H07Z1-R a stranded one (class 2). Solid wire sits firmly in the terminal, but becomes awkward to lay in the larger cross-sections. In the small cross-sections H07Z1-U is the usual choice; for larger sizes, choose H07Z1-R.

View H07Z1-R →