Category Archives: Microswitches / Limit Switches

Schmersal Launches the New PS Product Range of Position Switches

PS product range offers varied applications thanks to modular design

The Schmersal Group launches a new generation of position switches. The benefits for the user: The new PS product range offers varied applications, as all the position switches can be used both as complete devices and as modular units.

Type 1 position switches in line with ISO 14119 are for the position detection and monitoring of moving parts on machinery and plants as well as for lateral or pivotable protection equipment. The new range is suitable for a wide range of applications across all individual disciplines of machine and plant engineering – both for automation and safety applications and for lift engineering. The protection types IP66 or IP67 create the prerequisites for using the position switch in unfavourable environmental conditions.

Fewer variants – more flexibility

The modular design of the PS range with consistent components across all models reduces the number of variants, reduces storage costs and increases availability. All the position switches in the PS116, PS2xx and PS3xx ranges available within the modular system can be chosen both as complete switches with actuating element or as basic switches. Depending on the application, the basic switches can be combined with the necessary actuating element, which can be selected from a range of possible versions. This achieves the greatest possible flexibility in application and at the same time reduces the number of different switches available.

All actuating elements can be rotated in 45° increments, allowing adjustment to the defined direction of motion at any time. The connection terminals are also rotated around 45°, which makes connection easier and significantly reduces installation times. Switching elements with up to three contacts guarantee a redundant shutdown with an additional signal contact.

 

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Honeywell Announces Product Upgrade to Micro Switch SZL-VL Series Limit Switch

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Honeywell is pleased to announce an upgrade to the Micro Switch SZL-VL Series Limit Switch effective May 2017.

The new product features include the addition of positive opening contacts (side rotary version only), enhanced sealing level to IP67; NEMA 1, 12, 13, extended the temperature range, and added CCC certification.

The upgraded design includes modified seals, housing and a new design cable gland to improve seal performance. The housing design and mounting hole pattern remain the same. Any dimensional changes do not exceed more than 1mm.

These product enhancements will allow the potential for use in wide variety of applications as well as bring more value to our customers.

The upgrades to the SZL-VL Series require that we introduce new part numbers and obsolete the existing SZL-VL part numbers.

Value to Customers
Honeywell Micro Switch SZL-VL-S Series Miniature Limit Switches have user-friendly interfaces and may be used in a broad range of applications to help meet the challenges of many industrial environments. A variety of actuators fit on the same platform reducing the need to use various kinds of mounting hardware.

With robust environmental ratings, the SZL-VL-S is protected for all kinds of industrial applications. IP67 indicates that the SZL-VL-S is protected against the effect of immersion in water between 15 cm and 1 m. The competition standard is IP65 which can only withstand low pressure spray and jets of water. The electrical rating of 10 A permits the SZL-VL-S switch to be used with heavier electrical loads than competitors.

Key Features
* Approvals: CCC, CE, cULus
* Sealed to IP67, NEMA 1, 12, 13
* Snap-action contacts
* Die-cast metal housing with glass-filled, flame-retardant thermoplastic cover
* Stainless steel levers with either steel and nylon rollers
* Variety of actuators
* Positive-opening contacts (plunger version only)
* RoHS compliant
* Utilization category:
>AC-15 A300 (380 Vac/0.5 A)
>DC-13 Q300 (220 Vdc/0.05 A)
* Mechanical life rating: 10 million cycles
* Electrical life rating: 0.5 million cycles

Potential Applications
* Commercial appliances
* Exhaust and fume hood door monitoring
* Lift mechanisms inside high-density parking garages
* Logistic facilities
* Machine electrical interlock
* Machine position sensing
* Ramp up and down position monitoring
* Scissor and man lifts
* Vending machines

 

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Honeywell NGC Series MICRO SWITCH™ Compact Limit Switches

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Honeywell’s MICRO SWITCH™ Compact Limit Switches, NGC Series, are a configurable platform of medium-duty switches that allow the customer to choose SPDT (single pole, double throw) or DPDT (double pole, double throw) circuitry while maintaining the same housing and mounting footprint throughout the NGC Series. MICRO SWITCH™ NGC Series can be configured more than 380,000 ways, carries global approvals, and are sealed to IP67 for potential use in indoor and outdoor applications.

NGCSeries

VALUE TO CUSTOMERS
• Cost-effective: Provides a single source for a compact SPDT and DPDT limit switch, which can help minimize the Original Equipment Manufacturer’s sourcing expenses by simplifying their supply chain
• Versatile: Durable packaging allows for use in many harsh indoor or outdoor applications, providing performance confidence
• Configurable: Allows design engineers to standardize on a single footprint while meeting a variety of electrical requirements
• Application support: Customers with a global footprint can count on Honeywell for regional support for new applications and troubleshooting
• With two times the vibration (10 g) and shock (50 g) ratings of comparable competitive devices, the NGC Series can be implemented in the harshest of environmental conditions, providing enhanced reliability and repeatability
• Broader current capacity (10 A) than comparable devices allows for potential use in a wider set of applications, making platform standardization an easier task

FEATURES
• SPDT or DPDT configurable circuitry
• Snap-action, positive-break contacts
Elgiloy Hastelloy/Silver alloy and gold plated contact options
• UL, CE, cUL, and CCC approvals
• NEMA 1, 4, 12, 13; IP67 sealing
• Metal and plastic housing options
• Cable and connector terminations
• Variety of heads and actuator levers

POTENTIAL INDUSTRIAL APPLICATIONS
• Boom position detection
• Elevators and escalators
• Machine tools
• Mobile light towers
• Packaging equipment
• Rail doors
• Scissor lifts

 

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Honeywell Limitless™ Wireless Hazardous Area Switches, WBX Series

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WBX Series

Honeywell’s Limitless™ WBX Series combines the best of Honeywell’s MICRO SWITCH™ Heavy Duty limit switches with a point-to-point (P2P) network. It has a variety of remote or built-in antenna options. Wireless-enabled limit switches can be used for position sensing and presence/absence detection for an endless number of applications.

The WBX Series is especially beneficial for remote monitoring applications where wiring or wire maintenance is not physically possible or economically feasible. Combining this greater flexibility with proven harsh-duty packaging can result in increased efficiencies and improved safety for machines, equipment, and operators.

Customers with a global footprint can utilize local Honeywell experts for application and solution support.

 

VALUE TO CUSTOMER
• Enables control in remote parts of application/machinery/manufacturing plants, where wiring is not possible or feasible
• Ability to reconfigure and network multiple interfaces, or point-to-point with personalized addresses which allows for adding, subtracting, or relocating Limitless™ inputs easily
• Can reduce installation/maintenance costs with no wiring to Limitless™ switches, conduit, strain relief, clips, connectors, junction boxes, etc.
• Wireless operation and signal transmission eliminates the need to physically send maintenance engineers into the field thus reducing installation and operating costs
• Provides an independent layer of protection for equipment, by giving an immediate indication that a remote mechanical device is not positioned or moving correctly
• Batteries are inexpensive, readily available worldwide, and easy to replace. No re-provisioning is required after a battery replacement
• Batteries are readily available and easy to replace

FEATURES
• Radio (license-free and global) WPAN 802.15.4, 2.4 GHz, point-to-point (P2P); up to 305 m [1000 ft] line-of-sight communication range when used with a Limitless™ WPMM Series wireless monitor, WDRR Series receiver module, or WMPR receiver module (sold separately).
• License-free RF wireless protocol standards (IEEE 802.15.4)
• Hazardous location approvals: IP67 (self certified), NEMA 4 sealed metal enclosure
• Able to reconfigure multiple WBX Series switches
• Batteries readily available from electrical supply houses and distributors
• Global use

POTENTIAL APPLICATIONS
Industrial
• Agriculture machines
• Door position
• Grain diverters or flaps
• Hose attachment verification
• Material handling
• Paint robotics
• Pipeline pigs
• Pump stroke count
• Remote or temporary equipment
• Safety shower alarming
• Valve position

Transportation
• Agriculture machines

 

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Crouzet Switches: Detection Specialist for Explosive Atmospheres

Crouzet

Crouzet Switches Limit Switches Detect Valve position in ATEX / IECEX Zones

8399           83139

Compliant in Complex Industrial Processes
– Chemical
– Petrochemical
– Oil services

Features
– Various actuation accessories
– Adjustable angle levers and special heads
– IP67
– Operating temperature range -40°F to 392°F (-40°C to 200°C)

Applications
– Valves and actuators
– Cranes, hoists and gates
– HVAC, generators and safety guards

 

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Honeywell Expands Limitless™ Wireless Portfolio with New Wireless Operator Interface Pushbutton Controller

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Enables Control and Notification in Remote Parts of Plants Where Wiring is Too Costly or Not Possible

Honeywell announces the release of the new Limitless™ Wireless Operator Interface, WOI Series, which expands Honeywell’s Limitless™ wireless switch and receiver portfolio by providing a packaged pushbutton controller for manufacturers and OEMs. The WOI Series adds a human interface device to the product-driven interfaces of the Limitless™ portfolio. With both momentary and maintained contact options, the Limitless™ Series now offers wireless control from both person and position.

Honeywell’s Wireless Operator Interface is a controller designed to wirelessly turn on and off equipment (pumps, motors, drives, conveyors, and other industrial equipment), open or close gates/doors, or provide notification to remote locations. The WOI Series can be used in rugged industrial environments to notify appropriate departments when there are quality, machine, material out-of-stock, or other manufacturing issues.

“The WOI Series provides a control option for users looking to avoid the wiring costs, maintenance issues, hazards, time and engineering that comes with a ‘wired’ push button,” said Joseph Citrano, senior global product marketing manager, Sensing and Control. “This new device expands Honeywell’s Limitless™ wireless portfolio that includes monitors, din-rail receivers, global limit switches, and heavy-duty limit switches.”

Designed for flexibility, the user can choose and install a desired operator (22 mm rotary switch, key switch, key) or utilize one of Honeywell’s pushbuttons. It communicates through Limitless™ receivers that provide PLC inputs or relay outputs connected directly to equipment to turn on LEDs or start/stop industrial equipment.

The Limitless™ wireless network is an easy and cost-effective solution for those looking for a reliable wireless solution. It includes the WDRR Din-rail receiver, WPMM monitor, WLS heavy-duty limit switch, and WGLA global limit switch. The entire Limitless™ solution utilizes the global, license-free RF wireless 802.15.4 WPAN protocol that provides up to a 305 m [1000 ft] line-of-sight communication range, and prolongs battery life with advanced power management technology.

The Limitless™ WOI Series potentially could be used in industrial applications such as CNC action, conveyors, door and gate action, lifts, material handling, motor drives, presses, pumps, quality control buttons, specialty machines, stop/start machinery, stop/start production, and valve action. Potential transportation applications include agricultural equipment and movable machinery.

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Honeywell Micro Switch V-Basic Standard V15W Watertight Switches

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The Honeywell V15W is a standard-sized basic switch designed for harsh-duty, wash down areas. Rugged yet precise, the series provides machine control for turning circuits on and off. The V15W can be used in a wide range of challenging environments, including food packaging plants, forklifts, atvs, golf cars, lawn mowers, garbage trucks, salt trucks, commercial buses, forklifts and wheelchair lifts for conversion vans. Choose the V15W when you need accurate repeatability in a compact, light weight and long lasting basic switch.

V15W Watertight Series:  Watertight switch in a V-size package. Watertight to an IP67 rating (switch body only). The V15W is designed for applications requiring >15 g operating force and electrical ratings from 0.1 A to 10 A.

– Rugged yet precise, the V15W product performance matches customer design expectations for compactness, accurate repeatability and extended life, giving them flexibility in a wide range of washdown applications
– For design engineering flexibility, the VW15 Series features a variety of straight, roller, simulated roller, and special actuators to choose from (connectors on lead wires also available)
– Many switch characteristics, are available to create thousands of different potential configurations
– Designed specifically for challenging outdoor applications, the V15W gives repeatable and consistent performance within a range of conditions
– Able to operate under difficult environmental conditions, the V15W Series is designed to work in watertight or sealed applications requiring ≥15g of operating force
– Rated to IP67 (except terminal parts)
– The only V-sized switch rated up to 10A!  The higher rating allows the V15W to be used in a wider range of high current consumer and industrial applications

The V15W Series is the standard miniature snap-action switch in Honeywell’s Micro Switch portfolio of products that also includes standard Z, and premium Large, V, and S Series. The Honeywell V15W Watertight Series switches are often chosen due to their small size and sealing options when customers need to sense presence or absence in a compact package with accurate repeatability and extended life, at a great value.

KEY FEATURES AND BENEFITS
* Broad range of electrical loads
* Straight, roller, simulated roller, and special actuators
* Special terminations available upon request
* Wide temperature range
* Global approvals (UL, cUL, ENEC, CQC)

POTENTIAL APPLICATIONS
For use in applications where a pre-wired sealed on/off switch is required.

* ATV and Off-road Vehicles:  Brake light assemblies, brake position detection, handle bar controls, run-away prevention, shift lever position (golf carts), marine controls
* Construction and Agriculture:  Joystick controls, pushbuttons, seat position detection (lawn and turf), pedal position detection, run-away prevention, lighting controls, PTO position detection, position detection on attachments, position detection on hydraulic systems (wake-up)
* Industrial:  Washdown factory floor, factory machinery, pressure/temp/flow switches, motor-controls (on/off, auto-stop), ice makers, valve position
* Medical Equipment:  Hospital bed controls, dental chairs, foot-pedals, pneumatic switches

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Obsolete Saia Burgess M3BRMA – Not Anymore! Alternative Now Available!

      

Obsolete Saia-Burgess Parts

Although Saia-Burgess has discontinued the manufacture of the popular part M3BRMA there continues to be regular on-going demand for this switch from varied industries and applications.

Contact E. Preston Electrical to receive information about the alternative offered for this obsolete part.  Equivalent part for M3BRMA is now available with virtually the same form, fit, function and quality that will make this part available long into the future.

What about other Saia-Burgess obsolete parts.  We also offer direct alternatives to old parts such as M3BRML, 4CRQ, 4CR7, 4CRQR2, CB, CBL, CQR2, CR Series, CT Series & PN4 Series.

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Honeywell, Schaffner & Schurter for Medical Applications

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Honeywell Sensing and Control, Schaffner & Schurter

Three big names for medical applications provides medical OEMs and designers with a broad suite of high performance and reliable Sensors, Switches, Filters,  IEC Inlet Filters, Power Entry Modules, Connectors, Circuit Breakers, Fuse Holders, Chokes and Touch Panels used in hundreds of medical applications.  Doctors and patients must trust that the medical products they use will perform safely, reliably and effectively.  These manufacturers understand the needs of the medical industry and work closely with medical companies to provide the right products for each application. The combination of product leadership, application expertise and stable delivery make these three expert manufacturers the natural choice when choosing the right electrical requirements for your medical applications.   E Preston Electrical is a franchised distributor for each of these manufacturers offering long term support for your future needs.

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Honeywell Sensing and Control, Schaffner & Schurter

Whatever the application:  Infusion Pumps, Respiratory Machines, Anesthesia Machines, Ventilators, Dialysis Machines, Oxygen Concentrators, Diagnostics Appliances; not to mention the many variety of devices required for Therapy, Monitoring or Laboratory applications – all requiring reliable high standard products these manufacturers offer within the medical industry.

Honeywell, Schaffner and Schurter products are ideal for use in medical appliances, meeting all the typical requirements such as durability, reliability, safety orientation and design ensuring hygiene as well as user-friendliness and maximum functional integration.

Honeywell, Schaffner and Schurter supports medical equipment manufacturers worldwide, through technically sophisticated and well-engineered products, in their development work. That is why they consistently align innovation process with the technological trends of this cutting-edge industry.

  HONEYWELL                                   SCHAFFNER                                        SCHURTER

     Medical Applications                      Medical Applications                       Medical Applications    

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