Featuring 3-port isolation, 12.5 mm SIL-rated KC Series from Pepperl+Fuchs can be programmed and configured in field with pushbutton or dip switch logic functions. Units provide limit detection with form C alarm contacts, as well as fault detection and alarm functionality. With spring terminals, cable is inserted in socket and fixed by spring force, and can be released by pressing terminal button. Devices are suited for control rooms with limited space in both hazardous areas and general purpose locations.

These intrinsic safety barriers connect easily with our exclusive PowerRail system. By using PowerRail, a group of safety barriers is energized from an AC or DC source & monitored for group fault conditions. The PowerRail & IS barrier combination allows for simple expansion with no additional wires. You can also design multiple redundant power configurations.

Marshall Wolf Automation, your authorized industrial automation distributor now has extended hours to serve you better!  We are here from 7:30am until 6:00pm Central Standard Time!  Call us today at 800-325-9653 (WOLF)!

Marshall Wolf Automation can now offer you the popular KB Electronics line of AC and DC speed controls.

First up is the KBMM series, an adjustable speed DC drive available from 1/100  to 3/4 hp (1.5hp with with auxiliary heatsink). This series can control motors by inserting the proper Plug-in Horsepower Resistor®.

Features of the KB Electronics KBMM series include:

• AC line fuse and armature fuseholder
• Auto Inhibit®
• Voltage following
• MOV transient protection
• 5K speed pot and trimpot adjustments for MIN, MAX, ACCEL, DECEL, IR and CL

Options include auxiliary heatsink, barrier terminal board, RFI/EMI filters and signal isolation. Learn more about the KB Electronics KBMM series now.

What do zener barriers offer you? A cost saving protection solution in hazardous locations. The amount of energy transferred to the hazardous location is limited to a safe level incapable of igniting the explosive atmosphere.

Pepperl+Fuchs is the only option you need for zener barriers! They offer a large variety of housing and connection styles.

Zener barriers need to be connected to an IS ground. This can be done in several ways; isolated from the DIN-rail, via an isolated DIN-rail or via DIN-rail.

Another feature of Pepperl+Fuchs zener barriers is field replaceable fuses which provide an easy way to disconnect or open circulate the loop without interfering with the wiring. Maintenance is a breeze!

Interested in learning more? Take a look at our Pepperl+Fuchs zener barriers - the SB series and Z series.

Pepperl+Fuchs is well known for their intrinsic safety barriers. Their offering of intrinsic safety modules combine the energy limiting features of a zener barrier (yep, we sell those too) with galvanic isolation.

Marshall Wolf Automation is your authorized industrial automation distributor for the complete line of Pepperl+Fuchs including their intrinsic safety barriers and zener barriers.

Pepperl+Fuchs offer a number of systems for your specific application:

K-System

Pepperl+Fuchs most popular intrinsic safety isolated barriers are the flexible DIN rail mounted K-System modules. The K-System intrinsic safety barriers connect easily with our power rail assembled in the DIN rail. The use of the power rail reduces the wiring by energizing the modules mounted on the DIN rail.

H-System

The Pepperl+Fuchs intrinsic safety isolated barriers of the H-System are mounted on termination boards. This innovative product is ideal for applications requiring tight DCS or system integration.

E-System

For rack mounted isolated barriers, Pepperl+Fuchs offers a wide range of Eurocards in the E-System. You can choose between 3 variations of Eurocards.

 

 

Pepperl+Fuchs has a wide variety of galvanically isolated intrinsic safety barriers that will work with thermocouples.

When in a hazardous location and working on selecting a barrier, the first question that needs to be answered is, “What type of signal(s) are you looking for on the control side of the barrier?” Once that question is answered, you can begin the process of selecting a barrier.

All of the K-System barriers have removable terminal blocks. As a separate accessory, there is a terminal block that has built-in cold junction compensation for use specifically with thermocouples, the K-CJC-BU. This terminal block has an integrated encapsulated Pt100 RTD that is used for cold junction compensation, eliminating the need to maintain a known reference temperature.

Marshall Wolf Automation is the place to go for all of your safety barrier, thermocouple and sensor needs!  Contact us today at 800-325-9653. 

Intrinsically safe systems have energy levels that are so low that they cannot cause an explosion.

How do you achieve this? You can use zener diode barriers or isolated barriers to limit energy to a hazardous or potentially flammable area.

What are the difference between zener diode barriers and isolated barriers?

Zener diode barriers provide a simple method for implementing intrinsic safety. They must be connected to a dedicated intrinsic safety earth ground - which can be a problem for certain applications.

If you do not have a proper ground system in place the cost to install and maintain one maybe outweigh the savings of this inexpensive solution.

Isolated barriers do not require a dedicated ground and provide a galvanic isolation for anything connected to them. These do usually require a separate power supply. 

Intrinsic safety is the safest, least expensive and easiest to install method of hazardous area protection available!

Marshall Wolf Automation is your authorized distributor for the full line of Pepperl+Fuchs products, contact us for more information!

You may know that Pepperl & Fuchs is a recognized leader in the industrial sensor market but did you also know that Pepperl & Fuchs is a global market leader of industrial safety equipment for intrinsic safety and explosion protection technology.  They offer a complete range of solutions for the process automation industry that includes intrinsic safety isolators, zener barriers, signal conditioners, fieldbus technology, remote I/O, Hart interfaces, HMI for hazardous environments, custom cabinets, junction boxes, and separator alarm systems.

Pepperl & Fuchs has also developed a complete line of on-line corrosion and level measurement products and purge and pressurization units.  Target industries for their Process Automation division are the chemical, pharmaceutical, petrochemical, oil and gas, industries, as well as wastewater treatment and power technology.

Pepperl & Fuchs Process Automation products are available through Marshall Wolf Automation, your full-line industrial automation distributor.

Please view our extensive product line on our website www.wolfautomation.com.

Consolidate your industrial automation products with Marshall Wolf Automation by purchasing your sensors, drives, motors, intrinsic safety products, and power supplies from us.

Please email your inquiries to sales@wolfautomation.com.

Leuze Electronics-the sensor people-has a variety of sensors available to be used in explosive atmospheres.

Marshall Wolf Automation, your full-line industrial automation distributor, is an authorized Leuze distributor.

Following are some examples of explosion proof sensor solutions from Leuze:

46B Ex  n Series-The sensors of the 46B series comply with category 3 and have been developed especially for zone 2 ("Gas-Ex") in protection type nA and for zone 22 ("Dust-Ex") in protection type td.  They may be used with conducting and non-conducting dust. The sensors are accommodated inside a metal casing for protection against mechanical damage.

Intrinsically safe sensors of the 92 Ex series-These are designed either as a single-beam light barrier, as a reflection light barrier or as a reflection light button, and can detect objects reliably at distances between 300mm and 12 m.  The intrinsically safe ATEX sensors communicate the switching signals by way of the NAMUR interface to the VS 403 isolating switching amplifiers.  Sensors of this series may be used in zones 1 and 2 in areas where there are potentially explosive gases and dust.

Isolated switching amplifier VS 403 with intrinsically safe supply circuit-The VS 403 isolating switching amplifier makes it possible to effect an intrinsically safe circuit for the sensors of the '92" series.  For setting up the intrinsically safe circuit, Leuze electronics also offers blue cables with M12 circular plugs to connect the sensor to the isolating switching amplifier.

Please visit our website at www.wolfautomation.com and view a sampling of Leuze products.

Please send any requests to sales@wolfautomation.com.

More explosion proof sensor solutions from Leuze in upcoming blogs.

Zener barriers – cost saving and easy mounting Ex-protection

Zener barriers provide cost saving Ex-protection for various applications in process automation systems. The amount of energy transferred to the hazardous location is limited to a safe level incapable of igniting the explosive atmosphere. Pepperl+Fuchs offers a wide product portfolio of housing and connection styles, which include DIN rail, termination board mounted, and accessories for each application.

Zener barriers have to be connected to an IS ground.

The IS grounding can be realized several ways:

• Isolated from the DIN- Rail
• Via an isolated DIN-Rail
• Via DIN-Rail

Field replaceable fuses provide a convenient means of disconnecting or open-circuiting the instrument loop without interfering  with the wiring, making commissioning and maintenance operations much easier.  Contact Marshall Wolf Automation, one of the Midwest's largest Pepperl & Fuchs distributors for all of your intrinsically safe barrier needs!

Pepperl+Fuchs zener barriers offer cost-saving protection in hazardous applications for process automation systems.

The zener barriers limit the amount of energy transferred to the hazardous location to a safe level that is incapable of igniting the explosive atmosphere.

Pepperl+Fuchs offers a wide range of housing and connection styles including DIN rail, termination board mounted and accessories for specific applications.

Zener barriers have to be connected to an IS ground which can be done by isolating from the DIN rail, via an isolated DIN rail or via DIN rail.

We have in-house tech support available to help you find the best zener barrier for your application.

Marshall Wolf Automation is an authorized industrial automation distributor for the complete line of Pepperl & Fuchs including their inductive and capacitive proximity sensors, miniature photoelectric sensors and much more.