Honeywell CX SERIES MICRO SWITCH Installation Guide
- June 7, 2024
- Honeywell
Table of Contents
INSTALLATION INSTRUCTIONS FOR THE
MICRO SWITCH CX SERIES,
WEATHER SEALED, EXPLOSION-PROOF
LIMIT SWITCHES
WARNING
IF USED IN APPLICATIONS CONCERNING HUMAN SAFETY
- Only use NC direct opening (“positive opening”/”positive break”) contacts, identified by the symbol .
- Do NOT use flexible/adjustable actuators. Only use actuators designed for safety applications.
- Do NOT defeat, tamper, remove, or bypass this switch.
- Hazardous voltage, disconnect power before servicing.
- Strictly adhere to all installation and maintenance instructions.
- Consult with local safety agencies and their requirements when designing a machine-control link, interface and all control elements that affect safety.
Failure to comply with these instructions could result in death or serious injury
GENERAL INFORMATION
Sealed construction for Honeywell CX explosion-proof switches provides
protection from the entry of water, dust and oil as defined in NEMA 3, 4, 4X,
6, 6P, 13, and IP66/IP67 as defined in IEC 529.
CX Series products with conduit types ¾-14NPT also meet the North American
Hazardous Locations Designation: Class I, Group C and D; Class II, Groups E,
F, and G. CX listings beginning with numbers 14, 16, 24, 26, or 84 (example:
14CX1) also meet Class I, Group B. These explosion-proof and weather-sealed
switches are protected from flammable hydrocarbon atmospheres, metal dust,
coal dust, and grain dust, and comply with UL Standard: UL 894 and UL 1203,
CSA Standard: C22.2
no. 25-1966, C22.2 no. 30-M1986.
Select CX Series products also meet the European Hazardous Locations
Designation: Categories II 2 G Ex d IIC T6 and II 2 D tD A21, KEMA 01ATEX2111X
and complies with the European Directive on Equipment and Protective Systems
Intended for Use in Potentially Explosive Atmospheres (2014/34/ EU) commonly
referred to as the ATEX Directive. Compliance with the Essential Health and
Safety Requirements has been assured by compliance with EN 60079-0:2006, EN
60079-1:2004, EN61241-0: 2006, and EN61241-1: 2004. The European-approved
products have a temperature range of -40 °C to 70 °C [-40 °F to 158 °F], and
when used within the maximum voltage and current specified on the product will
have no heating problems.
CX Series products also meet the Brazilian hazardous Locations Designation:
Ex d IIC T6 Gb
Ex tb IIIC T85 °C Db
IP 66/67
and comply with INMETRO requirements.
Compliance with Essential Health and Safety Requirements has been assured by
compliance with
ABNT NBR IEC 60079-0:2008
ABNT NBR IEC 60079-1:2009
ABNT NBR IEC 60079-31:2011
ABNT NBR IEC 60529:2009
Please refer to certificate number TÜV 14.0553 for conditions of safe use.
Notice: For ambient temperatures above 60 °C [140 °F], cables and cable
glands suitable for a temperature of at least 80 °C [176 °F] shall be used.
For use in potentially explosive atmospheres caused by the presence of
flammable gases, fluids or vapors. The cable entry devices and the closing
elements of unused apertures shall be of a certified flameproof type, suitable
for the conditions of use and correctly installed.
For use in potentially explosive atmospheres caused by the presence of
combustible dust. The cable entry devices and the closing elements of unused
apertures shall be of a certified flameproof type, suitable for the conditions
of use and correctly installed. The minimum ingress protection requirement of
IP6X according to EN 60529 must be satisfied. Refer to the Certificate IECEx
TSA 06.0003X for conditions of safe use.
Application Note: Enclosures are based, in general, on the broad
definitions outlined in NEMA standards. Therefore, it will be necessary for
the user to determine that a particular enclosure is adequate when exposed to
the specific conditions that might exist in intended applications. Except as
might otherwise be noted, all references to products relative to NEMA
enclosure types are based on MICRO SWITCH evaluation only.
IMPORTANT: Switches without shaft re-storing force do not have overtravel
stops. On switches with potentiometers, use care to insure that overtravel
does not exceed 125° in the application and during set-up.
MICROSWITCH HAZARDOUS LOCATION SWITCH, CX SERIES
LEVER POSITIONING
Loosen the screw with a 9/64 inch hexagon key wrench, move the lever to the
desired position and securely tighten the screw until the “teller tab” can no
longer be moved by hand. Then tighten the screw another 1/8 to 1/4 turn to
assure that the lever is tight on the shaft. Hexagon key wrenches are provided
in adjusting toolset LSZ4005 for this purpose.
CAM ADJUSTMENT
Pretravel, overtravel, and actuation sequencing can be adjusted and/or
modified in the field. No tools are required.
To Adjust Rotary Types:
- Lift cam follower.
- Move cam wheel axially to disengage teeth on the wheel from teeth on shaft disc.
- Turn the cam wheel to the desired position. Turning in direction of shaft rotation advances operate point. Pretravel decreases and overtravel thereby increases. Each notch on the cam wheel represents an operating point change of 7°20’. The symbols on the cam wheel simplify changing rotation from clockwise to counterclockwise to center neutral, or vise versa. If the switch operates on clockwise and counterclockwise rotation, the pointer on the cam follower lines up with the symbol or symbol on the cam wheel. When symbol lines up, pretravel of 15° max. is obtained. When the symbol lines up, 80° max., pretravel is obtained. Operation is in the direction of the inclined surface of the symbol when or lines up with the pointer on the cam follower.
- When cam wheel has been rotated to the desired location, release cam wheel to engage with mating shaft disc.
- Release cam follower.
CX Wiring Methods
Honeywell recommends that conduit be installed per NEC articles 501-4 and
501-5.
REPLACEMENT PARTS
Replacement switch assemblies consist of the components subject to mechanical
or electrical wear. They include basic switches, cam wheels, cam followers,
and springs. The assemblies are factory adjusted to have the same operating
characteristics as new complete switches.
How to Order
Catalog listings for complete switches can be converted to replacement switch
assembly catalog listings as follows:
Momentary action rotary or plunger actuated switches with shaft or
plunger restoring force: To order a replacement assembly, change the first
digit in the catalog listing for a complete switch to 9 for rotary
switches or to 10 for plunger switches.
For example, the replacement switch assembly for a 12CX5 rotary switch =
92CX5.
Maintained action rotary switches without shaft restoring force: To order
a replacement assembly, change the first digit to a 9 and drop the first digit
following the letters CX.
Example: 12CX12=92CX2
Rotary Switch
Assembly|
---|---
REPLACEMENT LEVERS
To order replacement levers, order the part number which is metal stamped on
either the lever or the hub. Only nonsparking levers can be used to retain
the explosion-proof properties.
MOUNTING ADAPTER —15PA148-CX
Available for adapting CX to existing 2 hole mount.
ACTUATION SPECIFICATIONS
Catalog Listing
Prefix| 11CX, 21CX,
61CX, 71CX,
81CX, 91CX| 12CX, 22CX,
62CX, 72CX,
82CX, 92CX| 14CX, 24CX,
64CX, 74CX,
84CX, 94CX| 16CX, 26CX,
66CX, 76CX,
86CX, 96CX| 1172CX, 2172CX,
**9172CX***
---|---|---|---|---|---
Pretravel, max.| 15°| 15°| 30°| 30°| 15°
Differential travel max.| 5°| 10°| 25°| 20°| 5°
Overtravel, min.| 90°| 90°| 75°| 75°| 90°
Circuitry| Single-Pole
Double-Throw| Single-Pole
Double-Throw| Double-Pole
Double-Throw| Single-Pole
Double-Throw| (Gold Contact) Single-Pole
DoubleThrow
Electrical ratings| UL/CSA Rating:
L96 15 A, 120, 240, or
480 Vac
½ Hp, 120 Vac;
¼ Hp, 240 Vac
0.5 A, 125 Vdc,
0.25 A, 250 Vdc| UL/CSA Rating:
L23 20 A, 120, 240, or
480 Vac
1 Hp, 120 Vac;
2 Hp, 240 Vac
0.5 A, 125 Vdc,
0.25 A, 250 Vdc| UL/CSA Rating:
L59
10 A, 120 or 240
Vac
0.3 A, 125 Vdc,
0.15 A, 250 Vdc| UL/CSA Rating:
L22
1 A, 125 Vac| UL/CSA Rating:
L22
1 A, 125 Vac
*listing indicates replacement parts
ASSEMBLE COVER LOCK BRACKET FOR EUROPEAN COMPLIANCE
-
Make sure the switch cover is tightened so a lug aligns with the external ground screw.
-
Remove bracket screws and special screwdriver bit from the bag included in the box.
-
Fit top of bracket around lug on the cover.
-
Fit external ground screw into a notch in the bottom of the bracket.
Screw holes in the bottom of the bracket should align with screw holes in the housing on either side of the external ground screw. -
Use included screwdriver bit to tighten screws into the holes.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of defective
materials and faulty workmanship. Honeywell’s standard product warranty
applies unless agreed to otherwise by Honeywell in writing; please refer to
your order acknowledgment or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell during the
period of coverage, Honeywell will repair or replace, at its option, without
charge those items it finds defective.
The foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of merchantability and
fitness for a particular purpose. In no event shall Honeywell be liable for
consequential, special, or indirect damages.
While we provide application assistance personally, through our literature and
the Honeywell website, it is up to the customer to determine the suitability
of the product in the application.
Specifications may change without notice. The information we supply is
believed to be accurate and reliable as of this printing. However, we assume
no responsibility for its use.
For more information
Honeywell Safety and Productivity Solutions service its customers through a
worldwide network of sales offices and distributors. For application
assistance, current specifications, pricing, or the nearest Authorized
Distributor, visit our website or call:
USA/Canada +1 302 613 4491
Latin America +1 305 805 8188
Europe +44 1344 238258
Japan +81 (0) 3-6730-7152
Singapore +65 6355 2828
Greater China +86 4006396841
Honeywell
Safety and Productivity Solutions
830 East Arapaho Road
Richardson, TX 75081
sps.honeywell.com/ast
PK 88136-14-ML | 14 | 05/21
© 2021 Honeywell International Inc. All rights reserved.
References
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