2
sensing.honeywell.com
MICRO SWITCH VPX Series
ISSUE F
32312068
GENERAL INFORMATION
The VPX Valve Position Indicator is designed specifically for
use in potentially hazardous locations where explosive gases or
dusts may be present. To comply with explosion proof require-
ments the VPX has flame paths within the housing, which cool
any explosion below the ignition temperature before it reach
explosive gases or dusts in the surrounding atmosphere. Flame
paths on the VPX are 1) an extended shaft between the switch
cavity and head and 2) the cover-housing flange joint.
The equipment has a non-conducting coating and may gener-
ate an ignition-capable level of electrostatic charges under cer-
tain conditions. The user should ensure that the equipment 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.
Figure 1. VPX Valve Position Indicator
Figure 2. Flame Paths
Flange flame paths
Shaft
flame
paths
ENVIRONMENTAL PROTECTION
The VPX Valve Position Indicator is often ideal for outdoor use
or in potentially adverse environments. The enclosure is sealed
for protection against corrosion, water, dust and oil as defined
in UL 50E to enclosure types 4, 4X, 6, and 13 as well as to IP66
and IP67 as defined in IEC 60529. An ingress protection rating
of IP66 was confirmed according to IEC 60079-0 along with
the hazardous location approvals. A rating of IP67 was con-
firmed by Honeywell according to IEC 60529.
HAZARDOUS LOCATION RATINGS
0518
IECEx UL 16.0102X
DEMKO 16 ATEX 1733X
Compliance with the Essential Health and Safety Requirements
has been assured by compliance with:
•
CENELEC EN 60079-0 EXPLOSIVE ATMOSPHERES -
PART 0: EQUIPMENT - GENERAL REQUIREMENTS - Issue
Date 2012/08/01 - Revision Date 2013/01/01
•
CENELEC EN 60079-1 EXPLOSIVE ATMOSPHERES -
PART 1: EQUIPMENT PROTECTION BY ENCLOSURES “d”
-Issue Date 2014/10/01- Revision Date 2014/10/23
•
CENELEC EN 60079-11 EXPLOSIVE ATMOSPHERES
- PART 11: EQUIPMENT PROTECTION BY INTRINSIC
SAFETY “I” - Issue Date 2012/01/01
•
CENELEC EN 60079-31 EXPLOSIVE ATMOSPHERES -
PART 31: EQUIPMENT DUST IGNITION PROTECTION BY
ENCLOSURE “T” - Issue Date 2014/07/01- Revision Date
2014/07/22
•
IEC 60079-0 EXPLOSIVE ATMOSPHERES. PART 0: EQUIP-
MENT GENERAL REQUIREMENTS - Edition 6 - Issue Date
2011/06/01 - Revision Date 2014/10/01
•
IEC 60079-1 EXPLOSIVE ATMOSPHERES. PART 1: EQUIP-
MENT PROTECTION BY ENCLOSURES “d” - Edition 7 - Is-
sue Date 2014/06/01 - Revision Date 2014/06/01
•
IEC 60079-11 EXPLOSIVE ATMOSPHERES – PART
11: EQUIPMENT PROTECTION BY INTRINSIC SAFETY
“I” - Edition 6 - Issue Date 2011/06/01 - Revision Date
2014/10/01
•
IEC 60079-31 EXPLOSIVE ATMOSPHERES. PART 31:
EQUIPMENT DUST IGNITION PROTECTION BY ENCLO-
SURE “T” - Edition 2 - Issue Date 2013/11/01 - Revision
Date 2013/11/01
•
EUROPEAN DIRECTIVE ON EQUIPMENT AND PROTEC-
TIVE SYSTEMS INTENDED FOR USE IN POTENTIALLY
EXPLOSIVE ATMOSPHERES (2014/34/EU) commonly
referred to as the ATEX Directive.
•
UL 1203 Explosion-Proof and Dust-Ignition-Proof Electri-
cal Equipment for Use in Hazardous (Classified) Locations,
5th Edition, Revision 2013-11-22
•
CSA C22.2 No. 30 Explosion-proof enclosures for use in
class I hazardous locations, 3rd Edition, Reaffirmed 2012
•
CSA C22.2 No. 25 Enclosures for Use in Class II Groups E,
F, and G Hazardous Locations, Reaffirmed 2014
