Pfannenberg Z728 +Ve Zener Barrier, a single-channel DC positive polarity safety barrier designed to protect Ex signalling circuits in hazardous area applications.
SKU:38109800000MPN:38109800000
Price on applicationContact us for pricing and availability.
The Pfannenberg 38109800000 is a Z728 +Ve Zener Barrier designed for intrinsically safe signaling devices used in hazardous Ex environments. This ATEX-compatible barrier provides electrical protection and safe interface isolation for Pfannenberg intrinsically safe sounders and signaling devices, helping protect equipment installed in potentially explosive atmospheres.
Product Overview
The Pfannenberg 38109800000 Z728 +Ve is a positive polarity DC Zener barrier designed for use with intrinsically safe signaling equipment. It is suitable for combinations including Pfannenberg IS-A105N sounders and IS-Mini series signaling devices in Ex applications. The barrier provides controlled energy limitation to help maintain intrinsic safety requirements in hazardous area installations.
Key Features
Manufacturer: Pfannenberg
Part Number: 38109800000
Product Type: Zener Barrier
Model: Z728 +Ve
Designed for intrinsically safe signaling devices
Suitable for ATEX Ex applications
Positive polarity DC barrier
Compatible with Pfannenberg IS-A105N sounders and IS-Mini signaling devices
Provides electrical energy limitation for hazardous area circuits
Compact industrial protection solution
Applications
The Pfannenberg 38109800000 Z728 +Ve Zener Barrier is suitable for hazardous-area signaling systems including industrial process plants, chemical facilities, oil and gas installations, manufacturing environments, and other locations where intrinsically safe alarm devices are required.
Benefits
Supports safe operation of Ex signaling equipment
Provides reliable electrical protection in hazardous areas
Designed for Pfannenberg intrinsically safe signaling products
Helps simplify integration of Ex alarm systems
Suitable for demanding industrial safety applications
Why Choose Pfannenberg 38109800000?
Pfannenberg Zener barriers are engineered to provide dependable protection for intrinsically safe signaling systems. The 38109800000 Z728 +Ve offers a reliable interface between safe-area control equipment and hazardous-area signaling devices, helping maintain compliance and operational safety in Ex environments.
Technical Specifications
Tick the specs you need, then view products that match.
Light Function
Flashing
Coil / Supply Voltage
28 V DC
Illumination
Illuminated
Device Type
Accessory
Specification Value Brand
Pfannenberg
SKU
38109800000
Model
Z728 +Ve
Product Type
Zener Barrier
Application
Intrinsically Safe Ex Signaling
Rated Voltage
28V DC
Longitudinal Resistance
300 Ω
Maximum Input Voltage
28V
Voltage at 10 μA
26.5V
Rated Fuse Current
50mA
Maximum Signal Input Current
93mA
Signal Polarity
Positive
HS Code
85361010
Frequently Asked Questions
What is the Pfannenberg 38109800000?
The Pfannenberg 38109800000 is a Z728 +Ve Zener Barrier designed for intrinsically safe signaling devices in hazardous Ex applications.
What devices can be used with the Pfannenberg 38109800000?
The Z728 +Ve barrier can be combined with Pfannenberg intrinsically safe signaling products including IS-A105N sounders and IS-Mini series devices.
What voltage rating does the Pfannenberg 38109800000 have?
The Z728 +Ve Zener Barrier has a rated voltage of 28V DC.
Light Function
Flashing
Coil / Supply Voltage
28 V DC
Illumination
Illuminated
Device Type
Accessory
Specification Value Brand
Pfannenberg
SKU
38109800000
Model
Z728 +Ve
Product Type
Zener Barrier
Application
Intrinsically Safe Ex Signaling
Rated Voltage
28V DC
Longitudinal Resistance
300 Ω
Maximum Input Voltage
28V
Voltage at 10 μA
26.5V
Rated Fuse Current
50mA
Maximum Signal Input Current
93mA
Signal Polarity
Positive
HS Code
85361010
No documents available for this product.
UK delivery
Delivery options
Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.
This productLead time on request
Please contact us for a delivery time before you order
Standard delivery
£8 ex VAT · free over £200
UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Collect from our showroom
Mon–Fri, 8am–5pm
Order and pay online, then collect from our showroom.
Please allow 15–30 minutes after ordering for us to prepare your order.
Northern Ireland, ROI & export
Priced at checkout
We deliver to Northern Ireland, the Republic of Ireland and overseas.
Delivery is calculated at checkout based on your destination.
Orders with mixed availability
Shipped complete
If part of your order is on a lead time, we hold it and send everything together.
Need the in-stock items sooner? Ask us and we can split the delivery.
Business customer returns
Returns & order support
Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.
Stocked items
Request within 30 days
Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.
Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.
Faulty or damaged items
Tell us as soon as possible
Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.
We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.
Made-to-order items
Manufacturer approval needed
Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.
This does not affect claims for faulty goods or items that do not meet the agreed specification.
Let’s get your return sorted.
Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.
The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.
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Credit Accounts
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Customers supported
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Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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