Honeywell MICRO SWITCH BX Série Instructions D'installation page 6

MICRO SWITCH BX Series
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 1.5
600 12 1.2
A300/120V
–
A300/240V –
dc voltage Make & Break Inductive
120
0.25
240
0.15
Q300/125V 0.55
Q300/250V 0.27
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 07.0102X
number
II 2 GD
Ex d IIC T6 Gb
Protection
Ex tb IIIC T85°C Db
Class
–
-12°C < Tamb < +70°C (Fluorocarbon Seal)
-40°C < Tamb < +70°C (Fluorosilicone Seal)
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.
6 sensing.honeywell.com
Double Pole
Break Make
6 30 3
3 15 1.5
7.5 .75
6 6
– 60 6
– 30 3
Resistive
0.80
0.40
–
–
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 Db Ex tb IIIC T85°C Db
– IP6X
ABNT NBR
EN 60079-0:2012
IEC 60079-0:2008
ABNT NBR
EN 60079-1:2007
IEC 60079-1:2009
ABNT NBR
IEC 60079-31:2011
EN 60079-31:2013
ABNT NBR
IEC 60529:2009
The equipment has a non-conducting coating and may gener-
ate an ignition-capable level of electrostatic charges under cer-
tain extreme conditions. The user should ensure that the equip-
ment is not installed in a location where it may be subjected 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.
Table 3. Flame path measurements
Flame path
Push rod & bearing 0,076 mm
Bearing & housing
Power
factor
BX with conduit types 1/2-14NPT, 3/4-14NPT also meet the
.35
North American Hazardous Locations Designation: NEMA 7 -
.35
Class I, Groups B, C and D; NEMA 9 - Class II, Groups E, F and
.35
G and comply with UL Standard: UL 894, CSA Standard: C22.2
.35
No. 25-1966, C22.2 No. 30-M1986.
.30
.30
The BX is ideal for outdoor use or in adverse environments
where a combination of explosion-proof plus sealing require-
ments are needed. To comply with explosion proof require-
ments the BX has flame paths within the housing, which cool
exploding gases below the ignition temperature before they
reach explosive gases surrounding the housing. Flame paths
on the BX are (1) an extended plunger between the switch cav-
ity and head and (2) the cover-housing threads on the front of
the switch.
MOUNT, ADJUST, WIRE
MOUNTING
Note mounting dimension drawings for hole locations (Fig.
12, page 34). The BX is directly interchangeable with the LSX
explosion-proof limit switches: Adapter plate is not required.
ADJUSTING INSTRUCTIONS
To give flexibility in application, the user can perform the ad-
justments described below in any order before wiring the unit.
ACTUATOR HEAD
The actuator head may be positioned in any of four directions.
1. Loosen the four captive head screws.
2. Place head in the desired position.
3. Securely tighten the four screws to 1,4 Nm to 1,8 Nm [12
in-lb to 16 in-lb] (Figure 1).
PK 80148
ISSUE 19
Max. gap Comment
Cylindrical spigot joint
0,02 mm Cylindrical spigot joint