Purging & Pressurization Unit Cross-Over Guide
for Directly Compatible Replacement
We're honored to be your primary source for enclosure purging and pressurization units, and pledge to offer the most
exceptional quality, service and sales advantages.
Please open the drop-down charts below each Model to see
the Model Numbers of Units from other Manufactures
they can easily replace.
In addition, feel free to contact us for more
information regarding your specific needs.
Get the Best Solution here!
Applications
Configurations
Class I Areas Enclosures Volume
not exceeding 2 Cubic Feet
Class II Areas Enclosures Volume
not exceeding 10 Cubic Feet
Universal Mount (excluding pressure switch)
Left, Right, Top, Bottom
or Panel Mounting
Horizontal Mount (including pressure switch)
Top or Bottom Mounting
Vertical Mount (including pressure switch)
Left or Right Mounting
Best Purging Systems
Corporation
Pepperl+Fuchs
Bebco EPS® (circa 2003-Present Day)
Bebco Industries
EPS Division (circa 1990-2003)
Bebco Industries
EPS Division (circa 1985-1989)
D & M
Instruments (circa 2003-2013)
Model YZ101A-CI/CII-L-U
Type Y & Z Universal Mount
Enclosure Pressurization Unit
(less pressure switch)
Model 1001A-LPS-CI-YZ-LH
Model 1001A-LPS-CI-YZ-RH
Model 1001A-LPS-CI-YZ-TM
Model 1001A-LPS-CI-YZ-BM
Model 1001A-LPS-CI-YZ-PM
Model 1001A-LPS-CII-YZ-LH
Model 1001A-LPS-CII-YZ-RH
Model 1001A-LPS-CII-YZ-TM
Model 1001A-LPS-CII-YZ-BM
Model 1001A-LPS-CII-YZ-PM
Model 101A-LPS-CI-YZ-LH
Model 101A-LPS-CI-YZ-RH
Model 101A-LPS-CI-YZ-TM
Model 101A-LPS-CI-YZ-BM
Model 101A-LPS-CI-YZ-PM
Model 101A-LPS-CII-YZ-LH
Model 101A-LPS-CII-YZ-RH
Model 101A-LPS-CII-YZ-TM
Model 101A-LPS-CII-YZ-BM
Model 101A-LPS-CII-YZ-PM
Model YZ-101-CI/CII-L-U
Model YZ101A-CI/CII-W-H
Type Y & Z Horizontal Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1001A-WPS-CI-YZ-TM
Model 1001A-WPS-CI-YZ-BM
Model 1001A-WPS-CII-YZ-TM
Model 1001A-WPS-CII-YZ-BM
Model 101A-WPS-CI-YZ-TM
Model 101A-WPS-CI-YZ-BM
Model 101A-WPS-CII-YZ-TM
Model 101A-WPS-CII-YZ-BM
Model YZ-101-CI/CII-W-H
Model YZ101A-CI/CII-W-V
Type Y & Z Vertical Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1001A-WPS-CI-YZ-LH
Model 1001A-WPS-CI-YZ-RH
Model 1001A-WPS-CII-YZ-LH
Model 1001A-WPS-CII-YZ-RH
Model 101A-WPS-CI-YZ-LH
Model 101A-WPS-CI-YZ-RH
Model 101A-WPS-CII-YZ-LH
Model 101A-WPS-CII-YZ-RH
Model YZ-101-CI/CII-W-V
Group B, C & D Pressure Switch Options
-24 (24 VDC), -120 (120 VAC) or -240 (240 VAC)
added as last segment to Horizontal or Vertical
Mount Unit Model Numbers to feature
Group B, C & D rated Pressure Switches
Example: YZ101A-CI/CII-W-H-24
"WPS" replaced by "WPSA" to feature
Group B, C & D rated Pressure Switch, and
-24VDC, -120VAC or -240VAC added as last
segment to indicate Powered Contact Voltage
Example: 1001A-WPSA-CI-YZ-TM-24VDC
Group B, C & D rated
Pressure Switches were not
available while these Products
were manufactured
"W" replaced by "B" to feature
Group B, C & D rated 120 VAC
Pressure Switch on Models with
W-H and W-V suffixes
Example: YZ-101-CI/CII-B-V
Highlighted fields indicate Products that are discontinued or no longer manufactured
Applications
Configurations
Class II Areas Enclosures Volume
not exceeding 50 Cubic Feet
Universal Mount (excluding pressure switch)
Left, Right, Top, Bottom
or Panel Mounting
Horizontal Mount (including pressure switch)
Top or Bottom Mounting
Vertical Mount (including pressure switch)
Left or Right Mounting
Best Purging Systems
Corporation
Pepperl+Fuchs
Bebco EPS® (circa 2003-Present Day)
Bebco Industries
EPS Division (circa 1990-2003)
Bebco Industries
EPS Division (circa 1985-1989)
D & M
Instruments (circa 2003-2013)
Model YZ101B-CI/CII-L-U
Type Y & Z Universal Mount
Enclosure Pressurization Unit
(less pressure switch)
Model 1001B-LPS-CI-YZ-LH
Model 1001B-LPS-CI-YZ-RH
Model 1001B-LPS-CI-YZ-TM
Model 1001B-LPS-CI-YZ-BM
Model 1001B-LPS-CI-YZ-PM
Model 1001B-LPS-CII-YZ-LH
Model 1001B-LPS-CII-YZ-RH
Model 1001B-LPS-CII-YZ-TM
Model 1001B-LPS-CII-YZ-BM
Model 1001B-LPS-CII-YZ-PM
Model 101B-LPS-CI-YZ-LH
Model 101B-LPS-CI-YZ-RH
Model 101B-LPS-CI-YZ-TM
Model 101B-LPS-CI-YZ-BM
Model 101B-LPS-CI-YZ-PM
Model 101B-LPS-CII-YZ-LH
Model 101B-LPS-CII-YZ-RH
Model 101B-LPS-CII-YZ-TM
Model 101B-LPS-CII-YZ-BM
Model 101B-LPS-CII-YZ-PM
Model YZ-101-CI/CII-L-U
Model YZ101B-CI/CII-W-H
Type Y & Z Horizontal Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1001B-WPS-CI-YZ-TM
Model 1001B-WPS-CI-YZ-BM
Model 1001B-WPS-CII-YZ-TM
Model 1001B-WPS-CII-YZ-BM
Model 101B-WPS-CI-YZ-TM
Model 101B-WPS-CI-YZ-BM
Model 101B-WPS-CII-YZ-TM
Model 101B-WPS-CII-YZ-BM
Model YZ-101-CI/CII-W-H
Model YZ101B-CI/CII-W-V
Type Y & Z Vertical Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1001B-WPS-CI-YZ-LH
Model 1001B-WPS-CI-YZ-RH
Model 1001B-WPS-CII-YZ-LH
Model 1001B-WPS-CII-YZ-RH
Model 101B-WPS-CI-YZ-LH
Model 101B-WPS-CI-YZ-RH
Model 101B-WPS-CII-YZ-LH
Model 101B-WPS-CII-YZ-RH
Model YZ-101-CI/CII-W-V
Highlighted fields indicate Products that are discontinued or no longer manufactured
Applications
Configurations
Class II Areas Enclosures Volume
not exceeding 250 Cubic Feet
Universal Mount (excluding pressure switch)
Left, Right, Top, Bottom
or Panel Mounting
Horizontal Mount (including pressure switch)
Top or Bottom Mounting
Vertical Mount (including pressure switch)
Left or Right Mounting
Best Purging Systems
Corporation
Pepperl+Fuchs
Bebco EPS® (circa 2003-Present Day)
Bebco Industries
EPS Division (circa 1990-2003)
Bebco Industries
EPS Division (circa 1985-1989)
D & M
Instruments (circa 2003-2013)
Model YZ101C-CI/CII-L-U
Type Y & Z Universal Mount
Enclosure Pressurization Unit
(less pressure switch)
Model 1001C-LPS-CI-YZ-LH
Model 1001C-LPS-CI-YZ-RH
Model 1001C-LPS-CI-YZ-TM
Model 1001C-LPS-CI-YZ-BM
Model 1001C-LPS-CI-YZ-PM
Model 1001C-LPS-CII-YZ-LH
Model 1001C-LPS-CII-YZ-RH
Model 1001C-LPS-CII-YZ-TM
Model 1001C-LPS-CII-YZ-BM
Model 1001C-LPS-CII-YZ-PM
Model 101C-LPS-CI-YZ-LH
Model 101C-LPS-CI-YZ-RH
Model 101C-LPS-CI-YZ-TM
Model 101C-LPS-CI-YZ-BM
Model 101C-LPS-CI-YZ-PM
Model 101C-LPS-CII-YZ-LH
Model 101C-LPS-CII-YZ-RH
Model 101C-LPS-CII-YZ-TM
Model 101C-LPS-CII-YZ-BM
Model 101C-LPS-CII-YZ-PM
n/a
Model YZ101C-CI/CII-W-H
Type Y & Z Horizontal Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1001C-WPS-CI-YZ-TM
Model 1001C-WPS-CI-YZ-BM
Model 1001C-WPS-CII-YZ-TM
Model 1001C-WPS-CII-YZ-BM
Model 101C-WPS-CI-YZ-TM
Model 101C-WPS-CI-YZ-BM
Model 101C-WPS-CII-YZ-TM
Model 101C-WPS-CII-YZ-BM
n/a
Model YZ101C-CI/CII-W-V
Type Y & Z Vertical Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1001C-WPS-CI-YZ-LH
Model 1001C-WPS-CI-YZ-RH
Model 1001C-WPS-CII-YZ-LH
Model 1001C-WPS-CII-YZ-RH
Model 101C-WPS-CI-YZ-LH
Model 101C-WPS-CI-YZ-RH
Model 101C-WPS-CII-YZ-LH
Model 101C-WPS-CII-YZ-RH
n/a
Highlighted fields indicate Products that are discontinued, not available or no longer manufactured
Applications
Configurations
Class I Areas Enclosures Volume
not exceeding 15 Cubic Feet
Universal Mount (excluding pressure switch)
Left, Right, Top, Bottom
or Panel Mounting
Horizontal Mount (including pressure switch)
Top or Bottom Mounting
Vertical Mount (including pressure switch)
Left or Right Mounting
Best Purging Systems
Corporation
Pepperl+Fuchs
Bebco EPS® (circa 2003-Present Day)
Bebco Industries
EPS Division (circa 1990-2003)
Bebco Industries
EPS Division (circa 1985-1989)
D & M
Instruments (circa 2003-2013)
Model YZ102-CI/CII-L-U
Type Y & Z Universal Mount
Enclosure Pressurization Unit
(less pressure switch)
Model 1002-LPS-CI-YZ-LH
Model 1002-LPS-CI-YZ-RH
Model 1002-LPS-CI-YZ-TM
Model 1002-LPS-CI-YZ-BM
Model 1002-LPS-CI-YZ-PM
Model 1002-LPS-CII-YZ-LH
Model 1002-LPS-CII-YZ-RH
Model 1002-LPS-CII-YZ-TM
Model 1002-LPS-CII-YZ-BM
Model 1002-LPS-CII-YZ-PM
Model 102-LPS-CI-YZ-LH
Model 102-LPS-CI-YZ-RH
Model 102-LPS-CI-YZ-TM
Model 102-LPS-CI-YZ-BM
Model 102-LPS-CI-YZ-PM
Model 102-LPS-CII-YZ-LH
Model 102-LPS-CII-YZ-RH
Model 102-LPS-CII-YZ-TM
Model 102-LPS-CII-YZ-BM
Model 102-LPS-CII-YZ-PM
Model YZ-103-CI/CII-L-U
Model YZ102-CI/CII-W-H
Type Y & Z Horizontal Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1002-WPS-CI-YZ-TM
Model 1002-WPS-CI-YZ-BM
Model 1002-WPS-CII-YZ-TM
Model 1002-WPS-CII-YZ-BM
Model 102-WPS-CI-YZ-TM
Model 102-WPS-CI-YZ-BM
Model 102-WPS-CII-YZ-TM
Model 102-WPS-CII-YZ-BM
Model YZ-103-CI/CII-W-H
Model YZ102-CI/CII-W-V
Type Y & Z Vertical Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1002-WPS-CI-YZ-LH
Model 1002-WPS-CI-YZ-RH
Model 1002-WPS-CII-YZ-LH
Model 1002-WPS-CII-YZ-RH
Model 102-WPS-CI-YZ-LH
Model 102-WPS-CI-YZ-RH
Model 102-WPS-CII-YZ-LH
Model 102-WPS-CII-YZ-RH
Model YZ-103-CI/CII-W-V
Group B, C & D Pressure Switch Options
-24 (24 VDC), -120 (120 VAC) or -240 (240 VAC)
added as last segment to Horizontal or Vertical
Mount Unit Model Numbers to feature
Group B, C & D rated Pressure Switches
Example: YZ102-CI/CII-W-H-24
"WPS" replaced by "WPSA" to feature
Group B, C & D rated Pressure Switch, and
-24VDC, -120VAC or -240VAC added as last
segment to indicate Powered Contact Voltage
Example: 1002-WPSA-CI-YZ-TM-24VDC
Group B, C & D rated
Pressure Switches were not
available while these Products
were manufactured
"W" replaced by "B" to feature
Group B, C & D rated 120 VAC
Pressure Switch on Models with
W-H and W-V suffixes
Example: YZ-103-CI/CII-B-V
Highlighted fields indicate Products that are discontinued or no longer manufactured
Applications
Configurations
Class I Areas Enclosures Volume
not exceeding 75 Cubic Feet
Universal Mount (excluding pressure switch)
Left, Right, Top, Bottom
or Panel Mounting
Horizontal Mount (including pressure switch)
Top or Bottom Mounting
Vertical Mount (including pressure switch)
Left or Right Mounting
Best Purging Systems
Corporation
Pepperl+Fuchs
Bebco EPS® (circa 2003-Present Day)
Bebco Industries
EPS Division (circa 1990-2003)
Bebco Industries
EPS Division (circa 1985-1989)
D & M
Instruments (circa 2003-2013)
Model YZ103-CI/CII-L-U
Type Y & Z Universal Mount
Enclosure Pressurization Unit
(less pressure switch)
Model 1003-LPS-CI-YZ-LH
Model 1003-LPS-CI-YZ-RH
Model 1003-LPS-CI-YZ-TM
Model 1003-LPS-CI-YZ-BM
Model 1003-LPS-CI-YZ-PM
Model 1003-LPS-CII-YZ-LH
Model 1003-LPS-CII-YZ-RH
Model 1003-LPS-CII-YZ-TM
Model 1003-LPS-CII-YZ-BM
Model 1003-LPS-CII-YZ-PM
Model 103-LPS-CI-YZ-LH
Model 103-LPS-CI-YZ-RH
Model 103-LPS-CI-YZ-TM
Model 103-LPS-CI-YZ-BM
Model 103-LPS-CI-YZ-PM
Model 103-LPS-CII-YZ-LH
Model 103-LPS-CII-YZ-RH
Model 103-LPS-CII-YZ-TM
Model 103-LPS-CII-YZ-BM
Model 103-LPS-CII-YZ-PM
Model YZ-103-CI/CII-L-U
Model YZ103-CI/CII-W-H
Type Y & Z Horizontal Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1003-WPS-CI-YZ-TM
Model 1003-WPS-CI-YZ-BM
Model 1003-WPS-CII-YZ-TM
Model 1003-WPS-CII-YZ-BM
Model 103-WPS-CI-YZ-TM
Model 103-WPS-CI-YZ-BM
Model 103-WPS-CII-YZ-TM
Model 103-WPS-CII-YZ-BM
Model YZ-103-CI/CII-W-H
Model YZ103-CI/CII-W-V
Type Y & Z Vertical Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1003-WPS-CI-YZ-LH
Model 1003-WPS-CI-YZ-RH
Model 1003-WPS-CII-YZ-LH
Model 1003-WPS-CII-YZ-RH
Model 103-WPS-CI-YZ-LH
Model 103-WPS-CI-YZ-RH
Model 103-WPS-CII-YZ-LH
Model 103-WPS-CII-YZ-RH
Model YZ-103-CI/CII-W-V
Group B, C & D Pressure Switch Options
-24 (24 VDC), -120 (120 VAC) or -240 (240 VAC)
added as last segment to Horizontal or Vertical
Mount Unit Model Numbers to feature
Group B, C & D rated Pressure Switches
Example: YZ103-CI/CII-W-H-24
"WPS" replaced by "WPSA" to feature
Group B, C & D rated Pressure Switch, and
-24VDC, -120VAC or -240VAC added as last
segment to indicate Powered Contact Voltage
Example: 1003-WPSA-CI-YZ-TM-24VDC
Group B, C & D rated
Pressure Switches were not
available while these Products
were manufactured
"W" replaced by "B" to feature
Group B, C & D rated 120 VAC
Pressure Switch on Models with
W-H and W-V suffixes
Example: YZ-103-CI/CII-B-V
Highlighted fields indicate Products that are discontinued or no longer manufactured
Applications
Configurations
Class I Areas Enclosures Volume
not exceeding 250 Cubic Feet
Universal Mount (excluding pressure switch)
Left, Right, Top, Bottom
or Panel Mounting
Horizontal Mount (including pressure switch)
Top or Bottom Mounting
Vertical Mount (including pressure switch)
Left or Right Mounting
Best Purging Systems
Corporation
Pepperl+Fuchs
Bebco EPS® (circa 2004-Present Day)
Bebco Industries
EPS Division (circa 1990-2004)
Bebco Industries
EPS Division (circa 1985-1989)
D & M
Instruments (circa 2004-2013)
Model YZ104-CI/CII-L-U
Type Y & Z Universal Mount
Enclosure Pressurization Unit
(less pressure switch)
Model 1004-LPS-CI-YZ-LH
Model 1004-LPS-CI-YZ-RH
Model 1004-LPS-CI-YZ-TM
Model 1004-LPS-CI-YZ-BM
Model 1004-LPS-CI-YZ-PM
Model 1004-LPS-CII-YZ-LH
Model 1004-LPS-CII-YZ-RH
Model 1004-LPS-CII-YZ-TM
Model 1004-LPS-CII-YZ-BM
Model 1004-LPS-CII-YZ-PM
Model 104-LPS-CI-YZ-LH
Model 104-LPS-CI-YZ-RH
Model 104-LPS-CI-YZ-TM
Model 104-LPS-CI-YZ-BM
Model 104-LPS-CI-YZ-PM
Model 104-LPS-CII-YZ-LH
Model 104-LPS-CII-YZ-RH
Model 104-LPS-CII-YZ-TM
Model 104-LPS-CII-YZ-BM
Model 104-LPS-CII-YZ-PM
Model YZ-103-CI/CII-L-U (volume limited to 200 cubic feet)
Model YZ104-CI/CII-W-H
Type Y & Z Horizontal Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1004-WPS-CI-YZ-TM
Model 1004-WPS-CI-YZ-BM
Model 1004-WPS-CII-YZ-TM
Model 1004-WPS-CII-YZ-BM
Model 104-WPS-CI-YZ-TM
Model 104-WPS-CI-YZ-BM
Model 104-WPS-CII-YZ-TM
Model 104-WPS-CII-YZ-BM
Model YZ-103-CI/CII-W-H (volume limited to 200 cubic feet)
Model YZ104-CI/CII-W-V
Type Y & Z Vertical Mount
Enclosure Pressurization Unit
(with pressure switch)
Model 1004-WPS-CI-YZ-LH
Model 1004-WPS-CI-YZ-RH
Model 1004-WPS-CII-YZ-LH
Model 1004-WPS-CII-YZ-RH
Model 104-WPS-CI-YZ-LH
Model 104-WPS-CI-YZ-RH
Model 104-WPS-CII-YZ-LH
Model 104-WPS-CII-YZ-RH
Model YZ-103-CI/CII-W-V (volume limited to 200 cubic feet)
Group B, C & D Pressure Switch Options
-24 (24 VDC), -120 (120 VAC) or -240 (240 VAC)
added as last segment to Horizontal or Vertical
Mount Unit Model Numbers to feature
Group B, C & D rated Pressure Switches
Example: YZ104-CI/CII-W-H-24
"WPS" replaced by "WPSA" to feature
Group B, C & D rated Pressure Switch, and
-24VDC, -120VAC or -240VAC added as last
segment to indicate Powered Contact Voltage
Example: 1004-WPSA-CI-YZ-TM-24VDC
Group B, C & D rated
Pressure Switches were not
available while these Products
were manufactured
"W" replaced by "B" to feature
Group B, C & D rated 120 VAC
Pressure Switch on Models with
W-H and W-V suffixes
Example: YZ-103-CI/CII-B-V
Highlighted fields indicate Products that are discontinued, not available or no longer manufactured
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