● Electrical and energy sector

SMC for electrical equipment: enclosures, cabinets and mounting plates

SMC insulates, does not corrode and keeps its shape under heat: that is why it is the usual material for enclosures, switchboards and switchgear. We mould it in series, with integrated machining and cutting, so the part arrives ready to fit on your line.

SMC electrical cabinets and enclosures
16 kV/mm
dielectric strength
CTI 600
comparative tracking index
960 °C
glow wire @ 1.5 mm
UL94 V-0
self-extinguishing @ 3 mm
Why SMC for electrical equipment

Insulation, fire safety and stability, in a single moulded part.

01

Electrical insulation as standard

Dielectric strength of 16 kV/mm, volume resistivity of 1014 Ω·cm and CTI 600 (IEC 60112), with no additional insulating coatings.

02

Fire safety

Self-extinguishing UL94 V-0 at 3 mm and 960 °C glow-wire resistance at 1.5 mm (IEC 60695-2).

03

Stable under heat and humidity

Heat deflection temperature above 250 °C (ISO 75-2) and water absorption below 0.3% (ISO 62).

04

No corrosion, outdoors too

It does not rust: suitable for outdoor technical cabinets and humid or chemical environments, with no anti-corrosion paint.

05

Series production

7 presses from 150 to 1,250 t, sensor-equipped presses and unit traceability to keep repeatability over long series.

06

Ready to fit

CNC machining of holes and bosses, 5-axis waterjet cutting and in-mould painting when the part needs it.

Technical data

Reference grade for electrical applications (30% glass fibre)

Property Value Standard
Dielectric strength 16 kV/mm IEC 60243-1
Comparative tracking index CTI 600 IEC 60112
Volume resistivity 1014 Ω·cm IEC 60093
Surface resistance 1012 Ω IEC 60093
Dielectric constant 4 IEC 60250
Flammability V-0 @ 3 mm UL 94
Glow wire 960 °C @ 1.5 mm IEC 60695-2
Heat deflection temperature > 250 °C ISO 75-2
Flexural strength ≥ 190 MPa ISO 14125
Impact strength (Charpy) ≥ 85 kJ/m² ISO 179
Water absorption < 0.3 % ISO 62
Density 1.78 g/cm³ EN ISO 1183-1

Indicative values from the material manufacturer’s datasheet (Astar, Verkid H154, 2025). Product tests (IP, IK rating, etc.) depend on each enclosure’s design and are validated per project.

Applications

Parts we make for the sector

  • Technical enclosures and cabinets, including outdoor use.
  • Mounting and insulating plates for switchboards.
  • Busbar supports and insulating parts.
  • Covers and housings for telecommunications.
SMC mounting plate inside an electrical switchboard
Industrial capacity

From mould to finished part, in a single plant.

7
compression presses, from 150 to 1,250 t
3.500 × 1.800
mm platen on our largest press
24 Tn
moulds up to 24 tonnes, with a dedicated mould store
CNC + 5 ejes
4 CNC centres and 2 in-house waterjet cutting machines
PIMC
in-mould painting for a Class A finish
ISO 9001 · 14001
quality and environment, unit traceability batch–press–part
Frequently asked questions

Common questions from electrical equipment manufacturers

Do you have standard mounting plates?

Yes: our B2B shop offers 2100×1100 mm SMC sheet in quality A (UL94 V-0) and quality B, cut and machined to drawing.

What volumes can you handle?

With 7 presses of different tonnage we allocate production according to each mould and cycle time. Share your annual forecast and delivery schedule and we will plan it with you.

Can you match a RAL colour?

Depending on the grade, SMC is supplied in different RAL colours (for example 7035, 9001 or 9002). For a Class A finish, in-mould painting (PIMC).

Do you work with customer moulds?

Yes: our own and customer moulds, with a dedicated store for moulds up to 24 t and their maintenance.

Do you manufacture enclosures or electrical equipment?

Send us the drawing and annual forecast: we will propose grade, process and price per series, with initial feasibility within 24 working hours.