ABB enclosed disconnect switches Hazardous Location Codes
Enclosed
General
information
Introduction
An enclosure is a surrounding case constructed to provide a degree of
protection to personnel against accidental contact with the enclosed
equipment and to provide a degree of protection to the enclosed equipment against specified environmental conditions.
A brief description of the more common types of enclosures used by
the electrical industry relating to their environmental capabilities follows.
Definitions pertaining to nonhazardous locations
EEMAC environmental ratings
for enclosed disconnect switches
Refer to EEMAC Standards Publication for more information regarding
applications, features and design tests.
Individual EEMAC product Standards Publications or third party certification standards may contain additional requirements for product
testing and performance.
Type 1
Enclosures are intended for indoor use primarily to provide a degree of protection against
limited amounts of falling dirt.
Type 3R
Enclosures are intended for outdoor use primarily to provide a degree of protection
against rain, sleet and damage from external
ice formation.
Type 4
Enclosures are intended for indoor or outdoor
use primarily to provide a degree of protection
against windblown dust and rain, splashing
water, hose-directed water and damage from
external ice formation.
Type 4X
Enclosures are intended for indoor or outdoor
use primarily to provide a degree of protection
against corrosion, windblown dust and rain,
splashing water, hose-directed water and
damage from external ice formation.
Type 12
Enclosures are intended for indoor use primarily to provide a degree of protection against
circulating dust, falling dirt, and dripping noncorrosive liquids.
Type 13
Enclosures are intended for indoor use primarily to provide a degree of protection against
dust, spraying of water, oil and noncorrosive
coolant.
General information: 3.1 - 3.3 Enclosed non-fusible switches: 3.4 - 3.7 Enclosed fusible switches: 3.8 - 3.10 Tech data & dimensions: 3.11 - 3.12
Kits pgs. 2.10 Individual components pgs. 2.11 – 2.28 Tech. information pgs. 2.4 – 2.45 Dimensions pgs. 2.46 – _
3.2
IP environmental ratings
for enclosed disconnect switches
Enclosed
General
information
IP ratings
first number second number third number
protection against solid objects protection against liquids protection against mechanical impacts
IP
0
1
2
3
indicate the degree of protection against dust, liquids and impacts. The IP degrees of protection are defined by
the French standard NFC 20-010. To rate a device’s degrees of protection, the letters IP are followed by up to
three numbers. These numbers are defined as follows:
no protection
protected against solid
objects over 50mm (e.g.
accidental touch by hands.)
protected against solid
objects over 12 mm (e.g.
fingers)
protected against solid
objects over 2.5 mm (tools &
wires)
IP
0
1
2
3
no protection
IP
0
protected against vertically
falling rain or condensation
1
protected against direct
sprays of water up to 15°
from vertical
2
protected against sprays to
60° from vertical
3
no protection
impact 0.225 joule
150g falling from 15 cm
impact 0.375 joule
250g falling from15 cm
impact 0.50 joule
250g falling from 20cm
protected against solid
objects over 1mm (small
tools & small wires)
protected against water
sprayed from all directions
impact 2.00 joule
500g falling from 40 cm
4
4
protected against dust (no
harmful deposit)
5
protected against low
pressure jets of water from
all directions
5
impact 6.00 joule
1.5kg falling from 40 cm
5
7
totally protected against dust
6
6
protected from strong jets of
water (e.g. for use on ship
decks)
protected against the effects
of immersion between 15cm
and 1m
impact 20.00 joule
5 kg falling from 40 cm
9
7
General information: 3.1 - 3.3 Enclosed non-fusible switches: 3.4 - 3.7 Enclosed fusible switches: 3.8 - 3.10 Tech data & dimensions: 3.11 - 3.12
Kits pgs. 2.10 Individual components pgs. 2.11 – 2.28 Tech. information pgs. 2.4 – 2.45 Dimensions pgs. 2.46 – _
Enclosed
3.3
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