21CX4 [HONEYWELL]
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Sensing and Control
Honeywell Incꢀ
11 West Spring Street
Freeport, IL 61032
www.honeywell.com/sensing
Limit and Enclosed Switches
CX Series
Weather-Sealed Explosion-Proof Switches
FEATURES
ɀ Sealing - applicable portions of NEMA 1,
3, 4, 4X, 6, 6P, 7, 9, and 13
CX switches are built especially for outdoor NEMA standards: 1, 3, 4, 4X, 6, 6P, 7, 9 and
use in hazardous atmospheres. These en- 13.
closures are constructed to withstand the UL listed: Class I, Div. 1, Groups B (14CX,
pressure of an internal explosion. Flame 16CX, 24CX, 26CX, 36CX, and84CXonly), C
paths cool the exploded gases to a point and D; and Class II, Div. 1, Groups E, F and
less than the lowest safe operating temper- G. CSA certified: Class I, Div. 1, Groups B
ɀ Watertight and dusttight for outdoor use
ɀ 4-20 mA analog output available
ɀ UL Listed, file #E14274
ɀ Analog UL file #E68247
ature of the surrounding gas.
(14CX, 16CX, 24CX, 26CX, 36CX and 84CX
only), CandD;andClassII, GroupsE, Fand
G.
ɀ CSA Certified, file #LR57324
ɀ Rugged cast aluminum housing
ɀ Pretravel, overtravel, and actuating
sequence can be field adjusted without
tools (all basics individually)
O-ring seals make the enclosure weather-
proofbutareoutsideofrequiredflamepaths
so explosion proof requirements are main-
tained.
For rapid response – off the shelf service,
all bold face listings are normally stocked
items.
ɀ Rotary types convert in seconds to
clockwise, counterclockwise, or both-
way operation
Analog output: either resistive or 4-20 mA is
available.
Operating temperature range is –25° to
+85°C (–13° to 185°F).
ROTARY ACTUATED SWITCHES
ORDER GUIDE
As factory assembled, all basic switches
operateonclockwiseandcounterclockwise
rotation. Actuating mechanism can be field
adjusted for CW or CCW operation only. No
tools are required.
Catalog Listings
Shaft Restoring
Force To Center
Housing
Size
Basic
Switch(es)
Electrical
Ratings
Short housing
1
2
2
Description
15 amp. SPDT.
With
W/O
11CX1
Short
Short
Standard
Standard
BZ(1)
BZ(2)
BZ(3)
BZ(4)
A
A
A
A
11CX2
11CX12
21CX13
21CX14
21CX4
20 amp. SPDT.
12CX1
12CX2
Short
Short
BA(1)
BA(2)
B
B
12CX12
22CX4
Standard
BA(4)
B
Also UL listed for Class I.
14CX1
14CX11
24CX12
24CX13
Short
Standard
Standard
DT(1)
DT(2)
DT(3)
C
C
C
Group B (hydrogen atmospheres). 24CX2
10 amp. DPDT.
Standard housing
Also UL listed for
Class I, Group B
(hydrogen atmospheres).
1 amp, SPDT.
16CX2
26CX4
16CX1
16CX12
26CX14
16CX11
Short
Standard
Short
HS(2)
HS(4)
HS(1)
D
D
D
Actuators are not included with switch. Or-
der them separately.
Analog position sensing.*
Current output (4-20 mA).
—
—
18CX10
281CX12
284CX12
Short
Standard
Standard
None
BZ(2)
DT(2)
—
A
ROTARY LEVERS
Catalog
C
1 amp, SPDT with
gold contacts.
1172CX2 1172CX12
Short
BZ(2)
F
Lever Type
Listing
1.5 in. lever, no roller
.75 in. roller, front
.75 in. roller, back
LSZ51
LSZ51A
LSZ51C
1.5-3.5 in. adjustable lever
.75 in. roller
* Where noted, BZ basic switches are15 amp, SPDT; DT basic switchs are10 amp DPDT. Refer to next page for
analog position sensing specifications.
LSZ52C
LSZ52J
LSZ52K
1.0 in. roller
1
MOUNTING HOLES
Add the letter A to listings with side mount-
ing holes tapped 5/16-18(8).
Basic switches operate nearly simultane-
ously in multiple switch devices.
Shafts of devices without shaft restoring
force can be rotated through 360°.
1.5 in. roller
1.5 in. yoke roller
.75 in. rollers, back
.75 in. rollers, each side
2
LSZ53S
LSZ53E
Example: 11CX2A
5 in. rod lever
Hub only
LSZ54M
LSZ54
Add the letter B to listings with thru mount- Basic switches will be in operated mode
ing holes tapped 3/8-24(4).
through two 105° sections.
1.5 in. offset lever, no roller
.75 in. roller, back
.75 in. roller, front
LSZ55
LSZ55A
LSZ55C
Example: 11CX2B.
Eight side mounting holes can be tapped
5/16⍯-18.
Rollers are nylon. Non-sparking rollers must
be used in hazardous locations.
Honeywell ɀ Sensing and Control ɀ1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ1-800-737-3360 Canada
A127
Limit and Enclosed Switches
CX Series
REPLACEMENT BASIC SWITCH
ASSEMBLIES
Weather-Sealed Explosion-Proof Switches
ELECTRICAL RATINGS
These assemblies are factory adjusted to
the same operating characteristics as a new
CX switch. They include components sub-
ject to mechanical or electrical wear: basic
switches, cam wheels and followers, and
springs.
Circuitry
Electrical Ratings
A
UL/CSA Rating: L96
BZ
15 amps, 120, 240 or 480 VAC, ind. and res.
1⁄8 Hp, 120 VAC; 1⁄4 Hp, 240 VAC.
.5 amp, 125 VDC, .25 amp, 250 VDC., res.
Single-Pole
Double-throw
B
UL/CSA Rating: L23
To order, change the first number in the
complete switch catalog listing to 9 for ro-
tary switches and 10 for plunger switches
with short housings.
BA
20 amps, 120, 240 or 480 VAC, ind. and res.
1 Hp, 120 VAC; 2 Hp, 240 VAC.
.5 amp, 125 VDC, .25 amp, 250 VDC res.
Single-Pole
Double-throw
C
DT
UL/CSA Rating: L59
10 amps, 120 or 240 VAC, ind. and res.
.3 amp, 125 VDC, .15 amp, 250 VDC, res.
Example:
Double-pole
Double-throw
Rotary switch 12CX5
Replacement ⍧ 92CX5
Plunger switch 36CX2
Replacement ⍧ 106CX2
D
HS
UL/CSA Rating: L22
1 amp, 120 VAC, ind. and res.
Single-Pole
Double-throw
Note: Basic switch assemblies for rotary ac-
tuated switches, with or without shaft restor-
ing force, will be the same.
For example:
11CX1 and 11CX11 use 91CX1.
F
UL/CSA Rating: L22
1 amp, 125 VAC
BZ (Gold Contact)
Single-Pole
Double-throw
ANALOG POSITION SENSING SPECIFICATIONS
Current Output (4-20 mA)
Replacement PC Board
For current output devices 15PA261-CX
Voltage compliance range: 12.5 to 40 VDC
Maximum load resistance:
RL, Max,–V Supply - 12.5
20 mA
Current signal output: 4-20 mA
Span: Adjustable from 15° to 90° of angular
rotation.
Null: 4 mA position may be set at any angular
position.
OPERATING CHARACTERISTICS (All CX Switches)
Rotary Actuation
LOW TEMPERATURE SWITCHES
Add the letter C to listings for low temperature versions.
Example: 21CX14C –40°F (–40°C) Rotary
36CX2C –35°F (–37°C) Plunger
Plunger Actuation
BZ BA HS
Basic Switch Type
Pretravel (max.)*
BZ
15°
10°
90°
BA
15°
10°
90°
DT
30°
25°
75°
HS
30°
20°
75°
.10 in./2,5 mm
.04 in./1.0 mm
.19 in./4,75 mm
—
Differential Travel (max.)
Overtravel (min.)*
Operating Torque (max.)
Operating Force (max.)
11.1 in. lb./1,25 Nm
—
8.82 lb./39,2 N
* May be modified in field to suit application requirements.
N ⍧ Newtons
Nm ⍧ Newton meters
A128
Honeywell ɀ Sensing and Control ɀ1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ1-800-737-3360 Canada
Limit and Enclosed Switches
CX Series
Weather-Sealed Explosion-Proof Switches
80CX SWITCHES ALSO WITHSTAND
CORROSIVE ENVIRONMENTS
STAINLESS STEEL LEVER ACTUATORS
80CX switches have rugged bronze hous- These levers match the corrosion resistance of the 80CX housing. Non-sparking rollers
ings which are resistant to salt water and must be used in hazardous locations.
other corrosive environments. They comply
ORDER GUIDE STAINLESS STEEL LEVERS WITH NYLON ROLLERS
with the NEMA 4X requirement for protec-
tion against corrosion, in addition to NEMA
Std. Roller Lever
enclosure standards met by other CX
Radius (In.)
Dia. In.
Width In.
Catalog Listing
switches. O-ring seals make the enclosure
weather-proof, but are outside of required
flame paths so explosion-proof require-
ments are maintained.
1.5
1.5
.75
.75
.25
.25
LS2Z51A
LS2Z51
Std. Lever w/o roller
Adjustable Radius
1.5-3.5
.75
.25
LS2Z52A
Note: Refer to page A36 for lever dimensions.
ROTARY ACTUATED SWITCHES
ORDER GUIDE
As factory assembled, all basic switches
operate on clockwise or counterclockwise
rotation. Actuating mechanism can be field
adjusted for CW or CCW operation only. No
tools are required.
Catalog Listings
Shaft Restoring
Force To Center
Electrical
Housing
Size
Basic
Ratings
1
2
Description
15 amp. SPDT
With
Without
Switch(es) Page A109
81CX1
81CX2
81CX4
81CX11
81CX12
81CX14
Standard
Standard
Standard
BZ(1)
BZ(2)
BZ(4)
A
A
80CX switches available with standard
housing only.
A
20 amp. SPDT
82CX2
82CX4
82CX12
82CX14
Standard
Standard
BA(2)
BA(4)
B
B
Actuators are not included with switches.
Order them separately.
Also UL listed for Class I,
Group B (hydrogen
atmospheres). 10 amp. DPDT
84CX2
84CX12
Standard
DT(2)
C
MOUNTING HOLES
Add the letter A to listings with side
mounting holes tapped 5/16-18(8).
Notes: Refer to page A127.
Example: 82CX2A
Add the letter B to listings with thru
mounting holes tapped 3/8-24(4).
MODIFIED SHAFT ENABLES
DIRECT COUPLING
CX switches are available with a 3⁄8 inch for adapting CX switches to existing 2-hole
diameter by 3⁄4 inch long flatted shaft which mounting arrangements.
conforms to standard NEMA motor shaft
MOUNTING BRACKET
An aluminum mounting bracket is available
Example: 81CX2B.
To order, specify Catalog Listing 15PA148-
CX.
specifications. It accepts commercially
available shaft couplers, permitting easy,
direct coupling to most equipment actua-
tors.
15PA148-CX
To specify a ‘‘direct-couple’’ CX switch, add
-DO1 to catalog listings shown in the order
guides, i.e.11CX12-DO1. Pricingisthesame
as for unmodified versions.
Flatted
Shaft
Version
Honeywell ɀ Sensing and Control ɀ1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ1-800-737-3360 Canada
A129
Limit and Enclosed Switches
CX Series
Weather-Sealed Explosion-Proof Switches
MOUNTING DIMENSIONS (For reference only)
ROTARY
Short housing
Standard housing
PLUNGER
Short housing
Standard housing
THESE HOLES NOT FURNISHED ON 80CX SERIES
LSZ52
LEVER ACTUATORS
LSZ51
LSZ55
Front
mounting
Back
mounting
Back
mounting
Front
mounting
LSZ53
LSZ54
Both rollers
Front mounting
See order guides for roller dimensions.
A130
Honeywell ɀ Sensing and Control ɀ1-800-537-6945 USA ɀ ⍣1-815-235-6847 International ɀ1-800-737-3360 Canada
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