Selection of enclosures

Selection of Enclosures Technical Annexes

Selection according to the IP protection degrees

The degrees of protection, explained on the next page, is an important element when selecting the enclosures.
The following table shows the protection degrees of the enclosures.
Name Range IP43 IP44 IP54 IP55 IP65 (7) IP66
Metal industrial boxes Spacial SBM
Metal derivation boxes Spacial SDB
Steel wall-mounted enclosures Spacial S3DC (1)

Steel modular distribution wall-mounted enclosures Spacial S3DM

Terminal wall-mounted enclosures Spacial S3DB
Steel wall-mounted enclosures Spacial S3HF
Steel wall-mounted enclosures Spacial CRN
Steel wall-mounted enclosures Spacial CRNG (1)

EMC steel floor-standing enclosures Spacial SFHF

HMI control enclosures Spacial S3CM
ATEX steel wall-mounted enclosures Spacial S3DEX
Steel outdoor wall-mounted enclosures Spacial S3HD
Stainless-steel wall-mounted enclosures Spacial S3X (1)

Seismic and nuclear enclosures Spacial S3D6G /

Spacial S3D6GK3
Terminal enclosures with FL21 cut-out Spacial S3DBFL (6)

Steel floor-standing enclosures Spacial SM

Steel suitable enclosures Spacial SF
Steel outdoor floor-standing enclosures Spacial SFHD
Stainless-steel floor-standing enclosures Spacial SMX (7)

Stainless-steel suitable enclosures Spacial SFX (7)

Functional steel floor-standing enclosures Spacial SFP

Steel control desks Spacial SD
Stainless-steel control desks Spacial SDX
Thermoplastic industrial boxes Thalassa TBS-TBP (4) (5)

Polyester modular boxes Thalassa PLS

Polyester wall-mounted enclosures Thalassa PLM
Polyester outdoor wall-mounted enclosures Thalassa PHD
Polyester floor-standing enclosures Thalassa PLA (2)
Polyester floor-standing enclosures Thalassa PLD (3)

Polyester outdoor floor-standing enclosures Thalassa PHD

(1)
Double-door. (4)
Button boxes.
(2)
Different IP depending on the version. See introduction in Thalassa sec- (5)
Universal boxes.
tion: PLA: IP65, PLAT / PLAZT: IP44, PLAZ / PLAT / PLAZT with grille: IP54. (6)
With membrane mounted.
(3)
With gasket. (7)
Single-door enclosure.

The universal o er
Selection according to ambient conditions
The location of the enclosures and the physical, chemical and climatic conditions
to which they are exposed will determine the model to be used.
Material • Steel enclosures are particularly well suited to indoor use in industrial environments.

options
• Stainless-steel enclosures are particularly well suited to corrosive environments or
areas where specific hygiene demands are applicable.
• Polyester enclosures are particularly well suited to severe corrosive atmospheres,
indoors or outdoors.
Steel Enclosures made from insulated materials ensure total insulation,
reducing electric hazards for persons.

Stainless-steel The main characteristics of the plastic materials of our enclosures and
their chemical strength are given on page 515.

Further help for making the selection is given by the NEMA or UL classification
Plastic and Polyester of the enclosure, see page 512.
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Enclosures 2022 | Technical guides and spare parts 509

 Degrees of protection provided by enclosures

Degrees of Protection Provided by Enclosures Technical Annexes

IP IK
• The degrees of protection provided by
First numeral Second numeral Mechanical protection
the enclosures are defined by standards
Protection against Protection against liquids
IEC 60529 (IP) and IEC 62262 (IK). solid bodies
• Degrees of protection are indicated
by the letters IP followed by two
0 0 0
No protection No protection No protection
characteristic numerals. The numerals
show the degree of protection offered 1 1 1 200
g

by the enclosure against access to

7.5 cm
hazardous parts, the penetration by
solid bodies (1st numeral), and against Protected against solid Protected against Impact energy: 0.150 Joules
bodies larger than 50 (1.97) mm vertically falling water
the penetration of liquids (2nd numeral).
(in.) (e.g.: Incidental contact droplets (condensation)
• The protection against external with the hand) 200
g
mechanical impact is indicated by
the letters IK followed by a characteristic
2 2 2
10 cm

group numeral.
Protected against solid Protected against water Impact energy: 0.200 Joules
bodies larger than 12 (0.47) mm droplets deflected at up to
(in.) (e.g.: Finger contact) 15º from vertical
Comment:
Many EN European standards are harmonized with 3 3 3 200
g

international IEC standards.

17.5 cm
This is the case with enclosure protection standards:
- EN 60529 = IEC 60529.
Protected against solid Protected against Impact energy: 0.350 Joules
- EN 62262 = IEC 62262.
bodies larger than 2.5 (0.10) mm rainwater at up to 60º
(in.) (tools, cables) from vertical

4 4 4 25 cm 200
g

Protected against solid Protection against Impact energy: 0.500 Joules

bodies larger than 1 (0.04) mm water spray from all
(in.) (fine tools, small cables) directions

5 5 5 200
g

35 cm

Protected against dust Protected against Impact energy: 0.700 Joules

(no harmful deposits) low-pressure water jets
from all directions

6 6 6 500
g

20 cm

Totally dust tight Protected against Impact energy: 1.00 Joules

powerful water jets from
all directions

7 7 500
g

40 cm

Protected against the Impact energy: 2.00 Joules

effects of immersion

8 8 1.7
k g

29.5 cm

Protected against Impact energy: 5.00 Joules

prolonged effects of
immersion under pressure

9 5 kg

20 cm

Impact energy: 10.00 Joules

13 10 5 kg

40 cm

Impact energy: 20.00 Joules

Technical changes reserved. Information provided without guarantee. Images are for illustrative purposes only.

510 Enclosures 2022 | Technical guides and spare parts

 Classification of electrical equipment enclosures according to NEMA and UL

Classi cation of Electrical Technical Annexes

Classi cation of electrical equipment enclosures according to NEMA and UL

NEMA and UL are standardisation bodies, commonly recognized in North America,
which have issued classifications of enclosures according to the protection offered in various environments.
These classifications are similar.
The 1st table below summarises these classifications which do not include potentially explosive areas.
The detailed recommendations of these classifications are given on the next page.
The 2nd table indicates the classification of our enclosures.
These classifications appear in our UL certifications (see Certification technical annex on page 512).
Certification according to the UL classification helps guarantee the corresponding NEMA classification by equivalence.

Environment and protection Classification

1 2 3 3R 3S 4 4X 5 6 6P 12 13
Indoor use
Outdoor use
Incidental contact with the equipment
Dirt
Drips and gentle splashes of non-corrosive liquids
Rain, frost* and snow
Frost**
Dust, fibers and particles in suspension
Accumulated dust, fibers and particles in suspension
Clouds of dust
Splashes and spray of water
Gentle splashes and leaks of oil or
non-corrosive coolants
Drips, splashing and spraying of oil
or non-corrosive coolants
Corrosive agents
Occasional temporary immersion
Occasional prolonged immersion

* The operation of the external mechanisms is not required when the enclosure is covered with frost.
** The operation of the external mechanisms is required when the enclosure is covered with frost.

Enclosures Type of protection (1)

Name Range 1 2 3 3R 3S 3X 3RX 3SX 4 4X 5 6 12 13

Metal industrial boxes SBM
HMI control enclosures S3CM
Steel wall-mounted enclosures S3DC (1) (2) (2) (2) (2) (2)

Steel wall-mounted enclosures S3HF

Steel outdoor wall-mounted enclosures S3HD
Steel wall-mounted enclosures CRN
Steel wall-mounted enclosures CRNG (2) (2) (2) (2) (2) (2)

Stainless-steel wall-mounted enclosures S3X (2) (2) (2) (2) (2) (2) (2)

Steel floor-standing enclosures SM (2) (2) (2) (2)

Polyester outdoor PHD (2) (2)

wall-mounted enclosures
Steel suitable enclosures SF
Steel outdoor floor-standing enclosures SFHD
Stainless-steel floor-standing enclosures SMX (2) (2) (2) (2) (2) (2)

Stainless-steel floor-standing enclosures SFX (2) (2) (2) (2) (2) (2) (2) (2)

Thermoplastic boxes TBP

Polyester modular boxes PLS
Polyester wall-mounted enclosures PLM
Polyester floor-standing enclosures PLA (2) (2) (2) (2) (2) (2) (2)

(1)
Also S3DM, S3DEX and S3DC.
(2)
1 door.

Components Type of protection (5)

Name Range 1 2 3 3R 3S 4 4X 5 6 6P 12 13
Airing system CV
Thermal control system CC

(5)
In some ranges the classification depends on the model and version. The detailed protection types are indicated in the UL certifications. 13

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Enclosures 2022 | Technical guides and spare parts 511

 Classification of electrical equipment enclosures according to NEMA and UL 2

Classi cation of Electrical Equipment Technical Annexes

Classi cation of electrical equipment enclosures according to NEMA and UL

The enclosures must protect the equipment against environmental conditions and
help protect persons against the risk of incidental contact with the equipment.
The following classifications (Type) are applied according to the required uses
and prescriptions:
Type Use Prescription
1 Indoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt.
2 Indoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, drips and
gentle splashes of non-corrosive liquids.
3 Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, rain, sleet,
snow, windblown and resists the formation of ice on the outside.
3R Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, rain, sleet,
snow and resists the formation of ice on the outside.
3S Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, rain, sleet,
snow and windblown dust. The external mechanism must continue to work
even when layers of ice are formed.
3X Indoor and outdoor use The enclosure provides a degree of protection to personnel against access to
hazardous parts; To provide a degree of protection of the equipment inside the
enclosure against ingress of solid foreign objects (falling dirt and windblown
dust); To provide a degree of protection with respect to harmful effects on
the equipment due to the ingress of water (rain, sleet, snow); To provide an
additional level of protection against corrosion and that will be undamaged by
the external formation of ice on the enclosure.
3RX Indoor and outdoor use The enclosure provides a degree of protection to personnel against access
to hazardous parts; To provide a degree of protection of the equipment inside
the enclosure against ingress of solid foreign objects (falling dirt); To provide
a degree of protection with respect to harmful effects on the equipment due to
the ingress of water (rain, sleet, snow); To prevent damage by the external for-
mation of ice on the enclosure and to provide an additional level of protection
against corrosion.
3SX Indoor and outdoor use The enclosure provides a degree of protection to personnel against access to
hazardous parts; To provide a degree of protection of the equipment inside the
enclosure against ingress of solid foreign objects (falling dirt and windblown
dust); To provide a degree of protection with respect to harmful effects on
the equipment due to the ingress of water (rain, sleet, snow); To provide an
additional level of protection against corrosion; To ensure that external mecha-
nism(s) remain operable when ice laden.
4 Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, rain, sleet,
snow, windblown dust, splashes and hose-directed water and resists the
formation of frost on the outside.
Note: 4x Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
The above recommendations aim to explain the internal equipment and protects said equipment against dirt, rain, sleet,
the NEMA and UL classifications, but are snow, windblown dust, splashes, hose-directed water and resists
not the official texts of NEMA or UL. corrosion and the formation of ice on the outside.
The exact definitions provided by the 5 Indoor use The enclosure provides protection for persons against incidental contact
Organisations are those of standards NEMA with the internal equipment and protects said equipment against dirt, settling
250 and UL 50E. airborne dust, lint, fibers, flyings, drips and gentle splashes of non-corrosive
liquids.
6 Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, rain, sleet,
snow, hose-directed water, the entry of water during occasional temporary
submersion to a limited depth and resists the formation of ice on the outside.
6P Indoor and outdoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, rain, sleet,
snow, hose-directed water, the entry of water during prolonged submersion to
a limited depth and resists corrosion and the formation of ice on the outside.
12 Indoor use The enclosure provides protection for persons against incidental contact with
(without knock-outs) the internal equipment and protects said equipment against dirt, dust, fluff,
fibers, particles in suspension, drips and gentle splashes of non-corrosive
liquids as well as gentle splashes or leaks of oil and non-corrosive coolants.
13 Indoor use The enclosure provides protection for persons against incidental contact with
the internal equipment and protects said equipment against dirt, dust, lint,
fibers flyings and the spraying, splashing, and seepage leaks of water, oil or
13 non-corrosive coolants.

Technical changes reserved. Information provided without guarantee. Images are for illustrative purposes only.

512 Enclosures 2022 | Technical guides and spare parts

 Polyester base coating properties

Painting Properties Technical Annexes

Polyester base-painting properties

Product type
Thermosetting polyester resins based powder painting modified by epoxy resins and
designed for decoration and to help prevent corrosion.
The performance of this coating is superior to conventional epoxy powders in terms of
color stability, temperature resistance and weather resistance.
RAL 7035 grey; Surface finish: Structured.

Mechanical properties
Testing conditions: Steel samples with a thickness of 10 (0.39)/10e mm (in.).
Degreasing using biodegradable surface-active agents.
Film thickness: 60 microns.

Bonding (scratching and adhesive tape) ISO 2409 ≥ to Class 1

Ericksen stamping ISO 1520 ≥ 7 (0.28) mm (in.)
Direct impact resistance ISO 6272 > 1 (2.20) kg (lbs.) / 70 (27.56) cm (in.)
Indirect impact resistance ISO 6272 > 1 (2.20) kg (lbs.) / 20 (7.87) cm (in.)
Bending around conical mandrel ISO 6860 - ASTM D 522-88 Maximum cracking of
70 (2.76) mm (in.), without
the paint coming loose

Chemical properties
Tests conducted at ambient temperature on phosphated samples covered
with a 70 to 100 micron film:

Film intact.
Film attacked (blistering, yellowing, loss of gloss).

Number of months 2 4 6 8 10 12
Acid Acetic 20%
Sulphuric 30%
Nitric 30%
Phosphoric 30%
Hydrochloric 30%
Lactic 10%
Citric 10%

Base Soda 10%

Ammonia 10%

Water Distilled water

Sea water
Tap water
Diluted chloride bleach

Solvents Petrol
Higher-grade alcohols
Aliphatics
Aromatics
Ketone-ester
Tri-perchlorethylene

Physical properties
Temperature resistance: -40°C (-40°F) and 100 hours at + 150°C (302°F) (color: White).
Gloss retention: Good.

Resistance to corrosion
Compliance with standard IEC 62208 for outdoor installations: 288 h of humid heat
and 336 h of salt mist.
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 Brief checklist for enclosure composition

Coating Properties Technical Annexes

Polyester base coating properties

Nuclear decontamination
Applicable to colors RAL 7035 grey and AFNOR A550.
Standard NFT 30901. Percentage of decontamination for contamination by fission
products. Please consult us for further details.

Accelerated aging
Standard IEC 62208: 500 h UV according to ISO 4892 (method A)
(adherence of the coating with minimum retention of 50% on the grid according to ISO 2409).

Fire behaviour
Class M1 (self-extinguishing material).
Class M0 (for coating on a metal base).

Manufacturing process

Degreasing

Chemical conversion

Rinsing

Drying

Coating

Polymerisation

Mounting

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514 Enclosures 2022 | Technical guides and spare parts

 Properties of the plastic materials

Properties of Plastic Materials Technical Annexes

Properties of plastic materials - Mechanical, electrical, physical and re-resistance properties

Plastic materials generally used to manufacture our products:
• ABS.
• Polycarbonate.
• PVC (polyvinyl chloride).
• Bayblend® = PC + ABS.
• Polyester reinforced with fiberglass.
• Altuglas.
• Polypropylene.
Comment:
• Polystyrene.
For other chemical agents, please contact us.
• Polyamide 6 and 12. All information provided heren is taken from the best sources and provided for
• SBS. information purposes only, with no commitment on our behalf.

Specifications Standards Units ABS Polycarbonate PVC Bayblend ® Polyester SBS

Mechanical properties
Tensile strength ISO 257 MPa 44 > 65 45 35 85 5
Tensile strain ISO 527 % 12 > 110 120 bis 150 40 0 600
Impact resistance ISO 179 kJ/m² 125 No breakage 25 No breakage 60 No breakage
Notching resistance ISO 179 kJ/m² 19 25 20 25 50 -
Electrical properties
Stress point IEC 60112 - - 250-300 > 600 > 550 > 600 -
Surface strength IEC 60093 Ω 1015 > 1015 > 1013 > 1014 ≥1012 > 1013
Dielectric strength IEC 60243 kV/mm 16.5 > 30 30 24 18-20 20
Specific resistivity IEC 60093 Ω³cm 1015 > 1016 ≥ 1015 1016 ≥ 1012 > 1016
Physical properties
Softening temperature (Vicat B) ISO 306 °C (°F) 95°C (203°F) 145°C (293°F) - 79°C (174°F) - 115°C (239°F) (1)
80°C (176°F)
150°C (302°F) 80°C (176°F)
Temperature resistance - °C (°F) -40°C (-40°F) ...+ -50°C (-58°F) ...+ -20°C (-4°F) ...+ -35°C (-31°F) ...+ -50°C (-58°F) ...+ -40°C (-40°F) ...+
90°C (194°F) 125°C (257°F) 65°C (149°F) 90°C (194°F) 150°C (302°F) 120°C (248°F)
Water absorption ISO 62 % 0.2 - 0.45 0.15 < 0.1 0.2 0.2 -
Specific weight ISO 1183 kg/dm³ 1.04 1.21 1.4 1.12 1.85 0.3 in 24 h
Fire resistance
Oxygen index ISO 4589 % 19 26 45-50 22 24.4 18
Glow wire resistance, 2 (0.08) mm (in.) IEC 60695-2-10 °C (°F) 650°C (1202°F) 960°C (1760°F) 960°C (1760°F) 750°C (1382°F) 960°C (1760°F) 750°C (1382°F)
(1.5 (0.06) mm (in.))
Glow wire resistance, 3 (0.12) mm (in.) IEC 60695-2-10 °C (°F) 650°C (1202°F) 960°C (1760°F) 960°C (1760°F) 750°C (1382°F) 960°C (1760°F) NA

(1)
No softening of the polyester.

Specifications Standards Units Altuglas Polypropylene Polystyrene Polyamide 6 Polyamide 12

Mechanical properties
Tensile strength ISO 257 MPa 30 35 24 40 30
Tensile strain ISO 527 % 5 400 36 200 300
Impact resistance ISO 179 kJ/m² 20 20 63 No breakage No breakage
Notching resistance ISO 179 kJ/m² 3 5 50 31.2 15
Electrical properties
Stress point IEC 60112 - - - KB175 KB175 KB180
Surface strength IEC 60093 Ω ≥ 1014 - > 1013 1012 5 x 1010
Dielectric strength IEC 60243 kV/mm 13-15 20 ≤ 40 23 55
Specific resistivity IEC 60093 Ω³cm > 1015 > 1016 > 1015 1011 3 x 1011
Physical properties
Softening temperature (Vicat B) ISO 306 °C (°F) 120°C (248°F) - 75°C (167°F) (vicat 79°C (174°F) 230°C (446°F) 140°C (284°F)
122°C (252°F) A)
Temperature resistance - °C (°F) -20°C (-4°F) ..+ -10°C (14°F) ...+ -15°C (5°F) ...+ -20°C (-4°F) ...+ -50°C (-58°F) ...+
80°C (176°F) 80°C (176°F) 60°C (140°F) 100°C (212°F) 125°C (257°F)
Water absorption ISO 62 % < 0.5 0.1 in 24 h 0.1 in 24 h 1.6 1.5
Density ISO 1183 kg/dm³ 1.18 0.91 1.06 1.14 1.03
Fire resistance
Oxygen index ISO 4589 % 18.5 18 18 24 22
Glow wire resistance, 2 (0.08) mm (in.) IEC 60695-2-10
Glow wire resistance, 3 (0.12) mm (in.) IEC 60695-2-10
°C (°F)
°C (°F)
-
960°C (1760°F)
650°C (1202°F)
650°C (1202°F)
650°C (1202°F)
650°C (1202°F)
750°C (1382°F)
850°C (1562°F)
650°C (1202°F)
650°C (1202°F)
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Enclosures 2022 | Technical guides and spare parts 515

 Properties of the Plastic Materials Technical Annexes

Properties of plastic materials - Resistance to chemical agents

Plastic materials generally used to manufacture our products:
• ABS.
• Polycarbonate.
• PVC (polyvinyl chloride).
• Bayblend® = PC + ABS. The table shows:
• Polyester. The concentration of the chemical agent in %;
• Altuglas. • Sat = saturation.
• Polypropylene. The resistance of the material:
• Polystyrene. • +: Resistant.
• Polyamide 6 and 12. • O: Limited resistance.
• SBS. • –: Not resistant.
Resistance to ABS Polycarbonate PVC Bayblend ® Polyester Altuglas Polypropylene Polystyrene Polyamide 6 Polyamide 12 SBS
Acetone – – – – – O 100 + – 100 + + +
Hydrochloric acid 15 + 10 + 30 + 20 + 30 + sat + 10 + O 10 – 10 + 10 +
Citric acid 10 + sat + 10 + 100 + sat + sat + + 10 O + 10 +
Lactic acid 80 + 10 + 90 + 10 – 100 + 20 + 90 + O 50 O + sat +
90 – +
Nitric acid 30 + 10 + 50 + 10 + 20 + 10 + 25/ O 2 O – 50 +
100 – + 100 – 50 10 –
Phosphoric acid 85 + 100 + sat + + 100 + 10 + sat + O 2 O 50 + +
95 – 10 –
Sulphuric acid 50 + 50 + 96 + 30 + 70 + 30 + 96 + O 3 – 10 + 96 +
100 –
Alcohol O 96 + 96 + – 50 O 50 O 96 + + 96 O 96 + +
Pure aniline O – 100 – – O – 100 + 100 O 100 O
Benzene + 100 – – + – O 100 O 100 + + –
Liquid bromine 100 – – – 100 – 100 – –
Liquid chlorine –
100 – –
sat + – 100 – 100 O – 50 +
Sea water + 100 + 100 + + 100 + 100 + – 100 + 100 + sat +
Petrol + 100 + 100 O – 100 + 100 O – – 100 + + –
Ether – 100 O 100 – – 100 O + 100 + 100 + –
Hexane O + O O – 100 + 100 + 100 + –
Oil and greases + 100 + 100 + O 100 + 100 O 100 + – + 100 + –
Aromatic O – – – – + – – – + –
hydrocarbon
Fuel oil O 100 O 100 + – 100 + 100 – 100 + 100 + 100 + –
Naphthalene 100 O – 100 + 100 – 100 + 100 + 100 +
Nitrobenzene – – 100 – – – 100 O – O –
Phenol – – sat O – 20 O – sat + – – 10 O
Mineral salts + + + + + + + +
Iodine solution O – + – +
Toluene – – 100 – – + O 100 O – 100 + 100 + –
Trichloroethylene – – 100 – – – – 100 O – 100 – 100 O –
Urea sat + sat + + sat + 10 + sat + sat O

Comment:
For other chemical agents please contact us.
All information provided here is taken from the best sources and provided for
information purposes only, with no commitment on our behalf.

13

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516 Enclosures 2022 | Technical guides and spare parts