Honeywell SZL-WL series General Purpose Limit Switch User Guide

Honeywell SZL-WL series General Purpose Limit Switch User Guide

FEATURES

• Single Pole Double Throw, Double Break
• High mechanical strength and Rugged Aluminum die-cast housing
• Wide range of levers and actuators
• Standard mounting dimensions
• 10 Amp current capacity
• Long mechanical life
• Set position indicator for easy maintenance
• Oil tight, waterproof and dustproof construction
• UL,CSA,CE approved
• IP67 Enclosure rating

APPLICATIONS

• Machine tools
• Material handling
• Food and beverage
• Conveyors
• Special machinery
• Control Valve
• Auto Parking

DESCRIPTION

The new economical SZL-WL series general purpose limit switches are cost-effective switches for detecting objects in a wide range of applications from general purpose conveyors to heavy-duty machinery. Rugged and reliable, these switches are offered with a variety of actuators, functions and electrical ratings.
Various series of over travel types, high precision types, double sealing types as well as weld-immune types can be selected based on your specific application.
These switches are specially designed for world-wide applications and supported by Honeywell global resources for sales and after sales service.
Customers will benefit from Honeywell’s vast experience in serving world industries over many years. To minimize plant down-time and reduce maintenance costs, the SZLWL series include indicator type switches with twin LEDs.

WARNINGS

• DO NOT USE this product as safety or emergency devices or in any other applications where failure of the product could result in a personal injury.
• This information presented in this product sheet is for reference only. DO NOT USE this document as product installation information.

MODEL SELECTION GUIDE:__________________________________

Numbering Scheme
SZL-WL

1. Type
   • None Standard
   • A Over travel A series
   • B Over travel B series
   • C Over travel C series
   • D Over travel D series
   • E High Precision
2. Actuator
   • Refer to the table above.
3. Special Type
   • None Non-special
   • L Weld-immune type
   • E Double Sealing type
4. Indicator
   • None No indicator
   • LE Neon lamp(AC type )
   • L3 LED(DC24V/1.3mA)

TECHNICAL NFORMATION:___________________________________

Electrical Ratings

Notes:

1. Inductive load : power factor=0.4, time constant=7ms
2. Lamp load has an inrush current of 10 times the steady state current.
3. Motor load has an inrush current of 6 times the steady state current.

Specifications

Operating Characteristics

A. Standard Type

Notes:

1. Operating characteristics of WL-B are those measured at the arm length of 38 ㎜.
2. Operating characteristics of WL-C are those measured at the lever length of 140 ㎜.
3. Operating characteristics of these types are those measured at the tip of the actuator.

B. Over travel Type/High Precision Type

1. Operating characteristics of these types are those measured at the arm length of 38 ㎜.
2. Operating characteristics of these types are those measured at the lever length of 140 ㎜

C. THE OPERATING CHARACTERISTICS OF SPECIAL TYPES ARE THE SAME WITH THE TABLE ABOVE.

Approvals

Circuitry

Electrical Life Curve

Indicator Installation

<free position mode>

• Indicator is positioned to fit to the NC-ON window of the cover and the spring is aligned to NO contacts.
• Indicator is On when NC contacts are closed(at free position),then goes Off when NO contacts are closed(when actuated).
• Every switch is shipped out of factory with this mode.
  
  

<operation Mode>

• Indicator is positioned to fit to the NO-ON window of the cover and the spring is aligned to NC contacts
• Indicator is On when NO contacts are closed(when actuated),then goes Off when NC contacts are closed(when released).
• NO-ON mode and NC-ON mode can be switched to each other by rotating the indicator holder.
  
  

Set Position Indicator

<Proper Operation Zone>

The two convex surface indicators on the shaft housing show the operating zones for proper operation to help you do simple installation and maintenance. Too much over travel may cause short mechanical life due to possible damage to the switch mechanism.

Proper Zone
Too little Over travel, adjustment needed
Too much Over travel, adjustment needed
Too much Over travel, adjustment needed

Mounting Dimensions

<Surface Mounting>


<Through Hole Mounting>


<Rear Mounting>

Sealing/Mounting Accessory

<Use of Conduit Sealing Accessory>

<Accessory Package>

One Side Action Mode

<Standard/High precision type>

All side rotary switches of Standard type and High-Precision type can be set to actuate one side only.
Clockwise and counterclockwise mode is Available by rotating the plunger inside the operating head as shown in the picture to the right.

<Over travel D series>

Every listing of over travel D series switches can be set to one side action mode by rotating the cam inside the operating head as shown in the picture below.

Operating Head Direction Change

<90˚ Incremental Rotation>

Many types of SZL-WL limit switches provide the function of head direction change with 90˚ increment. The operating head can be set to any of the four positions by loosening the four head lock screws as shown in the picture to the right. This function is applied to all side rotary lever types and SZL-WLD,P,E,G,H,J.
The head of over travel D series can be set to direction ① and ③ only.

Dimensions

<SZL-WL-A>

<SZL-WL-B>

<SZL-WL-C>

<SZL-WL-D,P>

<SZL-WL-E>

<SZL-WL-F>

<SZL-WL-G>

<SZL-WL-H>

<SZL-WL-I>

<SZL-WL-J>

<SZL-WL-K>

<SZL-WL-L>

<SZL-WL-M>

<SZL-WL-N>

Weld-immune types
( special type dedicated to welding lines primarily for automotive factory floor )

SZL-WL-A-LLE

CABLES AND CONNECTORS:_________________________________

Cables/Receptacle

Terminal number & wire color

• Terminal 1 : brown
• Terminal 2 : white
• Terminal 3 : blue
• Terminal 4 : black
  

Usage and Dimensions

ZLC-4DLF-□

ZLC-4DSF-□


ZLC-4DSM-□


ZLC-4DRM-85



DC TYPE

AC TYPE

Seal Connector

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective material and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during that period of coverage, Honeywell will repair or replace 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.
While we provide application assistance, personally and through our literature, it is up to the customer to determine the suitability of the product
in the application.
Specifications may change at any time 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.

Sales and Service

Honeywell serves its customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing, or name of the nearest Authorized Distributor, contact your local sales office or:
INTERNET: www.honeywell.com/sensing
E-mail: [email protected]

Contact Us

ASIA PACIFIC
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E-mail: