Home > Companies > Ancon > Ancon Isotec Balcony Connectors

High-performance, thermally-broken connectors for concrete-to-concrete balcony applications. Particularly suitable for highly energy-efficient structures, heavily-congested or stepped floor slabs, applications where maximum corrosion protection is required and when an integral fire resistance is preferred to the installation of a separate fire protection barrier.

Each unit consists of non-deformable cage offering high rigidity and dimensional stability. The insulation component comprises Rockwool® mineral wool that offers inherent fire-resistant qualities. Isotec is formed from 100% Class A1 non-combustible components. An additional benefit is the use of short compression studs instead of compression bars which offer greater concrete design flexibility and simplify installation.Isotec has been thoroughly and independently tested by the French CSTB and holds Avis Technique Number 20/11-232.


  • Inherently fire-resistant mineral wool insulation.
  • Formed from 100% Class A1 non-combustible components.
  • Compression studs reduce rebar congestion and simplify installation.
  • Continuous stainless steel reinforcement maximises strength, thermal efficiency and corrosion protection.
  • Supplied as a complete unit providing rigidity and dimensional stability.
  • Extensive product line to suit a wide range of applications.

Standard product features

Insulation thickness:

80 mm.


100 kg/m³.


0.18–0.3 W/mK depending on construction.

Fire resistance:

120 minutes as assessed by CSTB


Tensile and shear reinforcement consist of 1.4301 or 1.4362 highly corrosion-resistant stainless steel with a minimum characteristic strength Rp0.2 of 500 N/mm². Tensile bars are continuous with no structural welding or point of weakness. Compression studs are manufactured from 12 mm diameter, high-resistance 1.4301 stainless steel bars with hot-forged heads.

In addition to thermal and durability benefits, stainless steel reinforcement reduces concrete cover requirements and can therefore provide additional design efficiencies over carbon steel systems.


Fire-resistant Rockwool® mineral wool insulation is protected by a stainless steel U-shaped profile top and bottom. A label is affixed to the top identifying the system type and direction of placement.


System type:

  • ACTP-MV: Slab-to-slab transfer of bending moment and shear forces.
  • ACTP-DMV: Slab-to-slab transfer, at same level, of bending moment and positive and negative shear forces.
  • ACTP-V: Slab-to-slab at same level transfer of shear forces only.
  • ACTP-DV: Slab-to-slab, at same level, transfer of positive and negative shear forces.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-75-42/395 Stainless steel shear load connector

Product specification

An important note about specifying





+44 (0)114 275 5224

Product reference

Ancon Isotec Balcony Connectors

System type


Anchorage type

[Not applicable]
For ACTP-MV only.
For ACTP-MV only.
For ACTP-MV only.
For ACTP-DV only.
For ACTP-V only
For ACTP-MV only.


[ ______ ]


[500 mm]
[1000 mm]


[Corner profile]

Manufacturer details

President Way,
President Park,
South Yorkshire, S4 7UR
Tel +44 (0)114 275 5224
Fax +44 (0)114 276 8543
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