The range of SR2 enclosures is a complete offer of monobloc enclosures for
constructing small and medium-sized electric automation, switching and control
switchboards.
The SR2 enclosures come from the experience ABB has gained
3
over the years in building IP65 metal structures (in accordance
with the IEC 60529 Standard), together with the innovative new
production process used for construction and patented by ABB.
The typical use of SR2 Enclosures is to make switchgear and
controlgear switchboards for a very wide variety of industrial
machines: from large machinery with automated production lines
or parts of these, down to the typical installations of on-board
machine switchboards, boilers, heating plants and so on.
They conform to the EN 62208 Standard “Empty enclosures for
low voltage protection switchgear and controlgear assemblies”
and allow realization of electrical equipment conforming to the
prescriptions of the IEC 60204-1 Standard “Safety of machinery.
Electrical equipment of machines” and of the EN 60439- 1
Standard and the new EN 61439-1-2 Standard “Low voltage
protection switchgear and controlgear for assemblies”. The
degree of protection, in accordance with the IEC 60529 Standard
“Degrees of protection of enclosures (IP Code)”, is IP65.
The SR2 enclosures have also passed the control required to
obtain the UL (Underwriters Laboratories) and CSA (Canadian
Standards Association) Type 12 marks.
The SR2 enclosures also allow secondary distribution
switchboards to be made, thanks to the possibility, in the
400, 600 and 800 mm widths, of installing the whole range of
apparatus and modular circuit-breakers on DIN rails combined
with special pre-drilled and hinged modular front panels, thereby
allowing construction of AS/ANS type electrical switchgear
conforming to the IEC 60439-1 Standard and the new EN
61439-1-2 Standard. A single line of metalwork structures
therefore allows construction of automation and secondary and
end distribution electrical switchboards thanks to the availability
of a series of accessories (modular panels, DIN rails) and to the
possibility of stacking the enclosures.
3/2 1STC804013D0203 | ABB Technical catalogue
The SR2 enclosures are available in two versions (blind door or glazed door) and in 23
different dimensions, as well as a further 19 combinations obtained by stacking the
enclosures, up to a maximum height of 2000 mm, which guarantee ample selection
possibilities for the various end applications.
The SR2 enclosures have been designed to fulfil all the typical
needs of the builder or installer of switchgear in the best way
possible and the user is presented with a unique ensemble of
functional characteristics:
• wide dimensional range
• certied IP65 degree of protection
• internal galvanised sheet mounting plate with 20/10 thickness
(made to allow threaded holes to be made easily), adjustable in
depth by using a special accessory
• fairlead plate screwed on (at top and bottom) made of 15/10
thick galvanised sheet, with a sealing gasket applied inside
• complete reversibility of the enclosure, so the door can open
either on the right or on the lefthand side
• possibility of installing all the apparatus and modular circuit-
breakers on a DIN rail combined with a hinged modular panel.
The standard colour is RAL 7035 orange peel. On request, the
SR2 enclosures can be ordered in a
wide range of RAL colours (see page 7/12).
Both the enclosures with glazed door or blind door can be
stacked:
stacking is done simply by removing the fairlead plates and
inserting the IP65 sealing gasket (GZ....), made of neoprene with
closed cells.
Assembly of the stacked enclosures is carried out by means of
the same holes used for the fairlead plates.
The door is supplied with the enclosure (single code) so as to
reduce the number of articles and assembly times.
3
ABB Technical catalogue STC804013D0203 3/3
SR2 Enclosures
General characteristics
The range is completed with a series of accessories: brackets for wall assembly, rain
shield top cover, locks of various types, internal document pocket, spacers, and spray
paint for touching up. It is possible floor fixing by means plinth.
3
Many closure systems can
Plastic document pocket, RAL
7035, size A4, the pocket is
apply within the solid doors
wider than 400 mm, with
stickers provided.
replace the standard closures
of the external doors.
The inserts are interchangeable
and easily replaced by
loosening a nut.
The brackets for wall mounting
allows installation of the boxes
on the wall using the holes
located on the back of the
enclosure.
Technical characteristics
Conformity with StandardIEC 62208, IEC 60439-1, IEC 61439-1-2
The enclosures with glazed door are also used for distribution configurations. The internal equipment is made,
alternatively, by selecting the special kits:
- KD... (Distribution Kit) consisting of a pair of functional uprights for assembly of the modular panels (to be ordered
separately) and of any compensation panel (see page 2/8).
The modular panels, which can also be installed on the enclosures with blind door with the help of the KD.. kit itself,
are all hinged and have vertical modularity of 185 mm.
3
120°
Enclosures with glazed door
Dimensions (mm)
CodeArticle
400200SRN5420VK1/1
(1)
500
600
700
800
1000
1200
(1)
The enclosures with height less or egual to 500mm hare only a closing box.
The internal counterdoor guarantees IP20 degree of protection. Made of steel sheet 15/10mm thick, galvanized and
painted orange peel RAL 7035 colour, complete with the EV1008 ergonomic box and insert with double tongue.
Blind counterdoor
Dimensions (mm)
Code
500400KC5040K1/1
600400KC6040K1/1
700500KC7050K1/1
800600KC8060K1/1
1000600KC1060K1/1
1000800KC1080K1/1
1200600KC1260K1/1
1200800KC1280K1/1
Package/
No. of piecesHW
3
Blind internal mounting plate
Internal galvanised sheet mounting plate 20/10mm thick complete with fixing with small items provided. Possibility
of adjusting the depth with the help of a special spacer kit (to be ordered separately).
The range of SR2 enclosures is a complete offer of monobloc enclosures for
constructing small and medium-sized electric automation, switching and control
switchboards.
The SR2 enclosures come from the experience ABB has gained
3
over the years in building IP65 metal structures (in accordance
with the IEC 60529 Standard), together with the innovative new
production process used for construction and patented by ABB.
The typical use of SR2 Enclosures is to make switchgear and
controlgear switchboards for a very wide variety of industrial
machines: from large machinery with automated production lines
or parts of these, down to the typical installations of on-board
machine switchboards, boilers, heating plants and so on.
They conform to the EN 62208 Standard “Empty enclosures for
low voltage protection switchgear and controlgear assemblies”
and allow realization of electrical equipment conforming to the
prescriptions of the IEC 60204-1 Standard “Safety of machinery.
Electrical equipment of machines” and of the EN 60439- 1
Standard and the new EN 61439-1-2 Standard “Low voltage
protection switchgear and controlgear for assemblies”. The
degree of protection, in accordance with the IEC 60529 Standard
“Degrees of protection of enclosures (IP Code)”, is IP65.
The SR2 enclosures have also passed the control required to
obtain the UL (Underwriters Laboratories) and CSA (Canadian
Standards Association) Type 12 marks.
The SR2 enclosures also allow secondary distribution
switchboards to be made, thanks to the possibility, in the
400, 600 and 800 mm widths, of installing the whole range of
apparatus and modular circuit-breakers on DIN rails combined
with special pre-drilled and hinged modular front panels, thereby
allowing construction of AS/ANS type electrical switchgear
conforming to the IEC 60439-1 Standard and the new EN
61439-1-2 Standard. A single line of metalwork structures
therefore allows construction of automation and secondary and
end distribution electrical switchboards thanks to the availability
of a series of accessories (modular panels, DIN rails) and to the
possibility of stacking the enclosures.
3/2 1STC804013D0203 | ABB Technical catalogue
The SR2 enclosures are available in two versions (blind door or glazed door) and in 23
different dimensions, as well as a further 19 combinations obtained by stacking the
enclosures, up to a maximum height of 2000 mm, which guarantee ample selection
possibilities for the various end applications.
The SR2 enclosures have been designed to fulfil all the typical
needs of the builder or installer of switchgear in the best way
possible and the user is presented with a unique ensemble of
functional characteristics:
• wide dimensional range
• certied IP65 degree of protection
• internal galvanised sheet mounting plate with 20/10 thickness
(made to allow threaded holes to be made easily), adjustable in
depth by using a special accessory
• fairlead plate screwed on (at top and bottom) made of 15/10
thick galvanised sheet, with a sealing gasket applied inside
• complete reversibility of the enclosure, so the door can open
either on the right or on the lefthand side
• possibility of installing all the apparatus and modular circuit-
breakers on a DIN rail combined with a hinged modular panel.
The standard colour is RAL 7035 orange peel. On request, the
SR2 enclosures can be ordered in a
wide range of RAL colours (see page 7/12).
Both the enclosures with glazed door or blind door can be
stacked:
stacking is done simply by removing the fairlead plates and
inserting the IP65 sealing gasket (GZ....), made of neoprene with
closed cells.
Assembly of the stacked enclosures is carried out by means of
the same holes used for the fairlead plates.
The door is supplied with the enclosure (single code) so as to
reduce the number of articles and assembly times.
3
ABB Technical catalogue STC804013D0203 3/3
SR2 Enclosures
General characteristics
The range is completed with a series of accessories: brackets for wall assembly, rain
shield top cover, locks of various types, internal document pocket, spacers, and spray
paint for touching up. It is possible floor fixing by means plinth.
3
Many closure systems can
Plastic document pocket, RAL
7035, size A4, the pocket is
apply within the solid doors
wider than 400 mm, with
stickers provided.
replace the standard closures
of the external doors.
The inserts are interchangeable
and easily replaced by
loosening a nut.
The brackets for wall mounting
allows installation of the boxes
on the wall using the holes
located on the back of the
enclosure.
Technical characteristics
Conformity with StandardIEC 62208, IEC 60439-1, IEC 61439-1-2
Their use prevents condensation in the electric cabinets. They consist of a heating element (PTC thermistor) inserted
in an aluminium alloy ground plate. The PTC thermistor is a component which modifies its impedance according to the
operating temperature. It is intrinsically stable and ensures primary safety features for the heater and service stability.
The main qualities of the heaters using PTC are:
- electrical absorption (or dissipated power) which is almost constant in
the range of power supply voltage between 100 and 250V;
- electrical absorption bound by inverse law to the trend of the ambient
temperature.
The special tubular geometry of the ground plate allows efficient thermal exchange with the heating element. This
allows high powers and limited overall dimensions (especially in width and depth);
Snap-on assembly on 35 mm DIN rail. Requires a thermostat.
Description
Anti-condensation heater 30W,
110-240 Vac-dc
Anti-condensation heater 50W,
110-240 Vac-dcc
Anti-condensation heater 75W,
110-240 Vac-dc
Dimensions (mm)
Code
115 4242VA79301/1
165 4242VA79501/1
210 4242VA79751/1
Package/
No. of piecesHWD
All the heaters with PTC absorb a higher power than the rated one on inrush according to a transitory which lasts
a few tenths of a second.
If the heaters are to be supplied by means of an auxiliary transformer, its apparent power must be sized taking 1.5
times the rated power of the heaters with natural aeration and twice those with forced ventilation into consideration.
Pe = (L + P)x H x K1 x K2 x K3.
Selection of heater
K1K2K3
Internal7 10 °C5 damp1,3
Externa8 5 °C10 normal1
External exp10 0 °C15 dry0,9
Example
Pe =Electric power required
H, W, D = Cabinet dimensions
K1 = Cabinet position
K2 =Cabinet external temperature
K3 = Type of climate
SRN12830K cabinet, outside temperature 10°C, normal climate.
Conforms to EN 60730-1, EN 60730-2-9 Standards, UL approval and cURus, IP20 degree of protection.
Grey RAL 7035 colour; electrical life 100,000 cycles. Dimensions (hxwxd) 68x29x45mm, can be mounted on all
the types of DIN rail. The version with NO (normally open) contact allows closure of a circuit activating ventilation,
air conditioning, or alarms. The version with NC (normally closed) contact allows opening of a circuit,
disconnecting any anti-condensation resistances.
Standard power
supply V~/50-
Description
NO ventilation thermostat110/250EN0101K1/1
NC heating thermostat110/250EN0102K1/1
60HzCode
Package/
No. of pieces
3
Contact capacity
CodePower supply
EN0101K 110/250~10A2A-10 +80 °CN048g
EN0102K 110/250~10A2A-10 +80 °CN048g
Temperature
scaleType of contactWeightLoad ΩLoad L
Frame for DIN rail
Internal supports for fixing modular panels and DIN rails, colour RAL 7035 orange peel.
Modular panels made of 12/10mm thick sheet steel painted RAL 7035 colour orange peel. The modular hinged
panels can be mounted on the enclosures by using the special kit (KD…) consisting of functional uprights and
compensation panel. The hinges patented by ABB, allow automatic earthing for panel contact when it is closed
and are also prepared for conventional earthing (with a cable). Each modular panel (PM) has a DIN rail provided
(adjustable in depth), the fixing brackets and the relative small items. Modular and circuit-breakers and Tmax
moulded-case circuit-breakers up to T3 can be placed side by side on the same DIN rail using the special depth
adapter AP6001. To install moulded-case circuit-breakers, it is necessary to fix the DIN rail in a position towards
the back. The fixing brackets of the DIN rail allow the wiring duct to be mounted up to a maximum size of 60 x
60 mm.
PM….
Modular hinged panels for modular apparatus (DIN rail and fixing brackets included)
Dimensions (mm)
Code
14 mod. DIN + fixing bracket185400PM1414K1/1
25 mod. DIN + fixing bracket185600PM1625K1/1
36 mod. DIN + fixing bracket185800PM1836K1/1
Modular hinged panels for measuring instruments
Dimensions (mm)
Code
2 instruments 72 x 72mm185400PS2476K1/1
2 instruments 72 x 72mm185600PS2676K1/1
2 instruments 72 x 72mm185800PS2876K1/1
Modular hinged blind panels
Dimensions (mm)
Code
Blind panel185400PC1406K1/1
Blind panel185600PC1606K1/1
Blind panel185800PC1806K1/1
Blind panel370600PC2606K1/1
Blind panel370800PC2806K1/1
DIN rail and fixing brackets
Description
DIN rail and fixing brackets14400GD40061/1
DIN rail and fixing brackets25600GD60061/1
DIN rail and fixing brackets36800GD80061/1
Depth adapter
No.1 depth adapter for Tmax T1-T2-T3-XT1-XT3
W=600mm
No. of
modulesW (mm)Code
AP60011/4
Package/
No. of pieces DescriptionHW
Package/
No. of pieces DescriptionHW
Package/
No. of pieces DescriptionHW
Package/
No. of pieces
AP6001
Polished flange for DIN-Rail mounting
DescriptionCode
Polished flange for XT1 3P mounted on DIN railAD33011/1
Polished flange for XT1 4P mounted on DIN railAD33021/1
Polished flange for XT3 3P mounted on DIN rail AD33031/1
Polished flange for XT3 4P mounted on DIN railAD33041/1
Already supplied in the DIN-Rail mounting kit for breakers in MCCBs catalogue
It can’t be mounted with the inner-door or with modular/blind panels mounted down in structure and hinged.
AA8010
AA8011
DescriptionCode
Door anti-closure deviceEV00151/4
Package/
No. of pieces
3
Neutral or earthing busbars
The busbars, made of electrolytic copper with M6 threaded holes with 25 mm pitch, can be mounted on the
back plates by means of the special supports. They must be sized according to the enclosure and the position
they are installed in.
Description
No. 4 busbars sect. 20x5mm 1000AA80101/4
No.5 support for busbarAA80111/5
W
(mm)Code
Spray protection roofs
To improve protection against entry of liquids and rain. Made of 15/10mm thick sheet steel, painted RAL 7035
colour orange peel.
Spray protection roof
Dimensions (mm)
Code
200150TT2015K1/1
300150TT3015K1/1
400150TT4015K1/1
300200TT3020K1/1
400200TT4020K1/1
500200TT5020K1/1
600200TT6020K1/1
400250TT4025K1/1
500250TT5025K1/1
600250TT6025K1/1
600300TT6030K1/1
800300TT8030K1/1
Package/
No. of pieces
Package/
No. of piecesWD
Shaped sections for accessories
These allow fixing of accessories (e.g. wiring ducts) inside the blind doors. They consist of a pair of vertical crosspieces made of 15/10mm thick white galvanised sheet, pre-drilled with 2.5 mm pitch. In the enclosures with 1000
and 1200 mm height with blind door, the shaped sections are already provided.
These can replace the standard closures of the external doors. The inserts are interchangeable and easily replaced
by loosening a single nut.
Code
Box Ø 19 mm double tongue and plastic key
(spare part)
Box Ø 19 mm with security insert and Yale type
key
Box Ø 19 mm with handle and Yale type keyAA80031/1
Box Ø 19 mm with triangular insert
Plastic key for triangular insert AA5200AA51901/1
Ergonomic box complete with double tongue
insert
Single code Yale insertEV10361/1
Ronis 455 insert forEV10371/1
3mm Double tongue insertEV10391/1
AA8001
AA8002
AA52001/1
EV1008
Package/
No. of piecesDescription
1/1
1/1
1/1
Document pocket RAL 7035
Made of plastic, RAL 7035 colour, A4 size. The pocket can be glued inside the blind door with a width of more
than 400 mm, using the adhesives provided.
DescriptionCode
Plastic document pocket for A4EV1075K 1/1
Package/
No. of pieces
Special Painting Service
Special painting service has to manage with code of enclosure SRN....SPEC ( e.g. SRN4320SPEC VERNSR +
note about color required ). It is necessary specify the color required in the order.
Code
Extra cost for special SR paintingVERNSR
See page 8/13 for the colours available.
D
C
A
Special Drilling service
The price increase depends depends on the number of individual drilled parts of the enclosure, and not on the
number of holes to be drilled.
For single parts it means: A-door, B-plate, C-sides, D-top / bottom.
C
The special drilling service has to be managed by code SRN ...SPEC code + number of boxes to be drilled (eg
B
SRN4320SPEC FORSR2). You must include the layout of the holes (see p. 9/49 useful drilling areas).
Code
Overprice for each single part drilled (A-B-C-D)FORSR14-5-6
Overprice for each single part drilled (A-B-C-D)FORSR27-8-9
Overprice for each single part drilled (A-B-C-D)FORSR≥ 10
The range of SR2 Enclosures EMC (Electromagnetic Compatibility) version has
undergone shielding efficiency tests with success according to the MIL STD 285: 1956
Standard.
This series of products is suitable for making small and mediumsized electric switchboards for automation, operation and control.
The electromagnetic compatibility problem also requires attention
3
when selecting enclosures and cabinets.
The increased number of components in the operation and
regulation electronics and the high processing speeds of signals
increasingly often leave a possibility of introducing errors which
can be attributed to electromagnetic interference.
These interferences may be caused continuously, periodically or at
random, from internal or external sources, which generate electric,
magnetic or electromagnetic fields.
The suitability tests according to MIL STD 285: 1956 (“Attenuation
measurements for enclosures, electromagnetic shielding, for
electronic test purposes, method of”) have confirmed conformity
of the SR2 EMC enclosure with the requirements of the standard.
The attenuation level (measured in dB) remains at high levels for a
wide spectrum of frequencies (from 30MHz to 10GHz).
The SR2 galvanized sheet enclosures are painted externally with
orange peel RAL 7035 colour.
Furthermore, they do not have cable entry flanges on the roof and
on the base.
Technical characteristics
Conformity with the StandardIEC 62208
Degree of protectionIP54 (IEC 60529)
Degree of mechanical strengthIK10 blind door
(IEC 62262)
Certifications
TUV
Rheinland
Product Safety
Type of materialMetallic
Installation siteIndoors
Fixing methodfloor/wall
Normal service conditions
ambient temperaturefrom –5 to +40°C