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MICRO SWITCH BX Series
m
WARNING
During installation, BX Series limit switches should not be
subjected to a corrosive atmosphere that could corrupt the
enclosure, thereby avoiding immediate or future corrosion of
the switch's enclosure.
m
WARNING
Do not replace any switch components with those from
another switch or replacement part without consulting
Honeywell technical support.
m
WARNING
During the switch's installation, use, and maintenance,
observe the following standards: GB12476.2-2006;
GB15577-1995; GB3836.13-2000; GB3836.15-2000;
GB3836.16-2006; and GB50257-1996.
m
WARNING
The equipment has a non-conducting coating and may gener-
ate an ignition-capable level of electrostatic charges under
certain extreme conditions. The user should ensure that the
equipment is not installed in a location where it may be sub-
jected to external conditions (such as high pressure steam)
which might cause a build up of electrostatic charges on non-
conducting surfaces. Additionally, cleaning of the equipment
should be done with a damp cloth.
m
WARNING
Any cable glands used with this product shall be provided
with protection d for hazardous location category IIC with
certificate, according to TP TC 012/2011.
SPECIAL CONDITIONS FOR SAFE USE
Honeywell explosion-proof switches are designed specifically
for use in hazardous location applications. The BX enclosure is
sealed for protection against corrosion, water, dust and oil as
defined in NEMA 1, 3, 4, 4X, 6, 13, and IP67 (per IEC60529).
The temperature rating for these products depends upon the
seal material used. Products using a fluorosilicone seal have
a rating of -40 °C [-40 °F] to 70 °C [158 °F]. Products using a
fluorocarbon seal have a rating of -12 °C [10 °F] to 70 °C [158
°F]. MICRO SWITCH™ BX switches are rated according to the
electrical ratings detailed in Table 1.
Table 1. Electrical Ratings: 10 A cont.
ac voltage
Single Pole
Break
Make
120
60
240
30
480
15
600
12
A300/120V
–
A300/240V
–
2 sensing.honeywell.com
Double Pole
Break
Make
6
30
3
3
15
1.5
1.5
7.5
.75
1.2
6
6
–
60
6
–
30
3
dc voltage
120
240
Q300/125V
Q300/250V
These products meet the following Protection Classes along
with complying with Essential Health and Safety Standards as
mentioned in Table 2.
Table 2. Certifications
Certifica-
IECEx
tion
Certificate
IECEx SIR
number
07.0102X
II 2 GD
Ex d IIC T6 Gb
Ex tb IIIC T85°C
Protection
Db
Class
–
IEC 60079-
0:2011
IEC 60079-
1:2007
Health
and Safety
Standards
IEC 60079-
31:2013
The maximum construction gap (ic) is less than that required
by Table 2 of EN/IEC60079-1:2007, clause 5.2.2 as detailed
below in Table 3.
The equipment has a non-conducting coating and may gener-
ate an ignition-capable level of electrostatic charges under
certain extreme conditions. The user should ensure that the
equipment is not installed in a location where it may be sub-
jected to external conditions (such as high pressure steam)
that might cause a build up of electrostatic charges on non-
conducting surfaces. Additionally, cleaning of the equipment
should be done with a damp cloth.
Power
factor
Table 3. Flame path measurements
.35
Flame path
.35
Push rod & bearing 0,076 mm
.35
Bearing & housing
.35
.30
.30
ISSUE 7
Make & Break Inductive
0.25
0.15
0.55
0.27
ATEX
INMETRO
SIRA
TÜV 14.0556 X
00ATEX1037X
II 2 GD
–
Ex d IIC T6 Gb
Ex d IIC T6 Gb
Ex tb IIIC T85°C
Ex tb IIIC T85°C
Db
Db
–
IP6X
-12°C < Tamb < +70°C (Fluorocarbon Seal)
-40°C < Tamb < +70°C (Fluorosilicone Seal)
ABNT NBR
EN 60079-
IEC 60079-
0:2012
0:2008
ABNT NBR
EN 60079-
IEC 60079-
1:2007
1:2009
ABNT NBR
IEC 60079-
31:2011
EN 60079-
31:2013
ABNT NBR
IEC
60529:2009
Max. gap
Comment
Cylindrical spigot joint
0,02 mm
Cylindrical spigot joint
50083427
Resistive
0.80
0.40
–
–
EAC
НАНИО
«ЦСВЭ» РОСС
RU.0001.11ГБ05
–
1Ex d IIC T6 Gb
Ex tb IIIC T85°C
Db
ГОСТ Р
МЭК 60079-0-
2011
ГОСТ
IEC 60079-1-
2011
ГОСТ Р
МЭК 60079-31
2010
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