The ZeroDT Difference: Superior Quality Industrial Surge Protectors
We’ve researched and created outstanding products that help protect your sensitive technology equipment from overvoltage transients. Our ZeroDT products offer far superior applications and capabilities than what our competitors provide. All ZeroDT products have non-degrading SASD technology with lightning-fast response time, UL Listings for use in hazardous locations (Class 1, Div 2) as well as ordinary locations, and are engineered for usage in high humidity environments and extreme temperatures.
Compare ZeroDT Industrial Surge Protection Products
ZeroDT I/O-24
Our Most Popular Product - Perfect for any industrial facility operating various electronic devices
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24 volt, 2 loop or 4-wire applications
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 12Vdc
- Max Cont. Operating Voltage: 36Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >1200 Amps
- 10/1000µs, Line to-Ground: 130 Amps
- Product Dimensions: 111mm H x 12.6mm W x 99mm D
- Wiring: (Positive/Negative) Compression lugs accept #20 & #14 AWG conductors, (Grounding) Mounts to grounded DIN Rail
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT 24-2
24 volt two loop or 4-wire applications
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 24Vdc
- Max Cont. Operating Voltage: 65Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >600 Amps
- 10/1000µs, Line to-Ground: 65 Amps
- Product Dimensions: 18.7mm H x 25.1mm W x 12.7mm D
- Wiring: (Positive/Negative) 2 White Wires + 2 Red Wires, (Grounding) 1 Green Wire
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT 24-1
24 volt single loop or 2-wire applications
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 24Vdc
- Max Cont. Operating Voltage: 36Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >600 Amps
- 10/1000µs Line to-Ground: 65 Amps
- Product Dimensions: 12.4mm H x 12.4mm W x 18.9mm D
- Wiring: (Positive/Negative) 1 White Wire + 1 Red Wire, (Grounding) 1 Green Wire
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT 12-1
12 volt single loop or 2-wire applications
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 12Vdc
- Max Cont. Operating Voltage: 18Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >600 Amps
- 10/1000µs, Line to-Ground: 65 Amps
- Product Dimensions: 12mm H x 12mm W x 18mm D
- Wiring: (Positive/Negative) 1 White Wire + 1 Red Wire, (Grounding) 1 Green Wire
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT 12-2
12 volt two loop or 4-wire applications-Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.-
- Nominal Voltage: 12Vdc
- Max Cont. Operating Voltage: 18Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >600 Amps
- 10/1000µs, Line to-Ground: 65 Amps
- Product Dimensions: 18.7mm H x 25.1mm W x 12.7mm D
- Wiring: (Positive/Negative) 2 White Wire + 2 Red Wire, (Grounding) 1 Green Wire
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT 48-1
Single loop or 2-wire protector for 48 Volt applications
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 48Vdc
- Max Cont. Operating Voltage: 65Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >600 Amps
- 10/1000µs, Line to-Ground: 65 Amps
- Product Dimensions: 18.7mm H x 25.1mm W x 12.7mm D
- Wiring: (Positive/Negative) 1 White Wire + 1 Red Wire, (Grounding) 1 Green Wire
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
Let’s Find the Right Solution to Minimize Your Downtime.
ZeroDT 120-1
Protects single loop or 2-wire applications with voltages up to 120Vac or 170Vdc
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 120Vac or 170Vdc
- Max Cont. Operating Voltage: 138Vac or 195Vdc
- Maximum Surge Current (Ipeak)
- 8/20µs, Line to-Ground: >600 Amps
- 10/1000µs Line to-Ground: 65 Amps
- Product Dimensions: 12.7mm H x 25.1mm W x 32.1mm D
- Wiring: (Positive/Negative) 1 White Wire + 1 Red Wire, (Grounding) 1 Green Wire
- UL Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT DC-24
Ultimate protection for 24 volt DC systems
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- Nominal Voltage: 24 Vdc or 24 Vac
- Max. Cont. Operating Voltage: 39 Vdc or 27.5 Vac
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >5 kA
- 10/1000 µs, Line-to-Ground: >350 Amps
- Product Dimensions: 57 mm H x 57 mm W x 92 mm D
- Wiring: Can be connected in Series (15A max) or as a Parallel/Shunt protector
- Module is Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT GB-1
Protection for Ethernet and Gigabit Ethernet devices
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- Data Rates/Protocol: 10/100/1000 Base-T (Ethernet & Gigabit Ethernet)
- Max. Cont. Operating Voltage: 11 Vdc
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >20 kA
- 10/1000 µs, Line-to-Ground: >100 Amps
- Product Dimensions: 57 mm H x 57 mm W x 92 mm D
- Wiring: RJ-45, series connected, all 8 pins protected
- Module is Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT GB-2
Protection for Ethernet and Gigabit Ethernet devices
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- Data Rates/Protocol: 10/100/1000 Base-T (Ethernet & Gigabit Ethernet)
- Max. Cont. Operating Voltage: 11 Vdc
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >20 kA
- 10/1000 µs, Line-to-Ground: >100 Amps
- Product Dimensions: 57 mm H x 57 mm W x 92 mm D
- Wiring: RJ-45, series connected, all 8 pins protected
- Module is Listed for use in ordinary as well as Class 1, Div 2 Hazardous Locations
ZeroDT FM-2
Hazardous location enclosure with ZeroDT protection with 2 wires (1 pair)
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 24 Vdc
- Max. Cont. Operating Voltage: 36 Vdc
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >1,200 Amps
- 10/1000 µs, Line-to-Ground: >130 Amps
- Enclosure conduit openings: Qty 2, ¾” NPT
- Wiring: Terminal block, #24 to #10 AWG conductors
ZeroDT FM-4
Hazardous location enclosure with ZeroDT protection with 4 wires (2 pair)
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Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.
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- Nominal Voltage: 24 Vdc
- Max. Cont. Operating Voltage: 36 Vdc
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >1,200 Amps
- 10/1000 µs, Line-to-Ground: >130 Amps
- Enclosure conduit openings: Qty 2, ¾” NPT
- Wiring: Terminal block, #24 to #10 AWG conductors
Let’s Find the Right Solution to Minimize Your Downtime.
ZeroDT FM-8
Hazardous location enclosure with ZeroDT protection with 8 wires (4 pair)-Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.-
- Nominal Voltage: 24 Vdc
- Max. Cont. Operating Voltage: 36 Vdc
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >1,200 Amps
- 10/1000 µs, Line-to-Ground: >130 Amps
- Enclosure conduit openings: Qty 3, ¾” NPT
- Wiring: screw compression lug, #26 to #14 AWG conductors
ZeroDT FM-12
Hazardous location enclosure with ZeroDT protection with 12 wires (6 pair)-Analog signals (4-20 mA), discrete digital inputs/signals, pulsed inputs/outputs, RS-485/422/232 & digital communications as well as DC power lines.-
- Nominal Voltage: 24 Vdc
- Max. Cont. Operating Voltage: 36 Vdc
- Maximum Surge Current (Ipeak)
- 8/20 µs, Line-to-Ground: >1,200 Amps
- 10/1000 µs, Line-to-Ground: >130 Amps
- Enclosure conduit openings: Qty 3, ¾” NPT
- Wiring: screw compression lug, #26 to #14 AWG conductors
Let’s Find the Right Solution to Minimize Your Downtime.
Superior Surge Protection with Practical Applications
Electrical overvoltage transients can happen at any time and are not just from lightning. Overvoltage transients can be caused any time electrical current is switched off or on. Compressors, motors, pumps and HVAC, are just a few examples of equipment that can generate large transients, and couple this with grid switching, equipment failures and human error your equipment exists in a harsh environment. Lightning discharges (even more than a mile away) can induce overvoltage transients into the wires and conductors themselves via electromagnetic waves (think radio waves). What that means is that you can find your critical automation and process control equipment and machinery experiencing surges that can easily damage and destroy it, bringing on a system shutdown.
ZeroDT “Zero Down Time” utilizes non-degrading Silicon Avalanche Suppression Diode (SASD) technology to combat these overvoltages. Competitive products that utilize Gas Discharge Tubes (GDTs) or Metal Oxide Varistors (MOVs) or combinations, but they degrade with every surge or transient that comes down the line. They may work well on the day they are installed but usage takes its toll and your equipment is eventually damaged or destroyed. With ZeroDT’s SASD protection technology, that worry goes away – your equipment has the same level of protection five years down the road that it did on day one. Another advantage of the SASD protection technology is that it has the response time capability to react to those lightning-fast events (no technology is faster). At ZeroDT, we’ve created advanced field-deployed products that help ensure you don’t experience electrical equipment damage and system downtime.
Speak with a ZeroDT specialist to find the perfect solution for your industrial and commercial applications. We’ll set up a consultation with you to better protect your equipment and reduce the chance of system downtime.
Take Advantage of a Powerful Surge Protection Device
There is more to look at than the cost of your equipment to be replaced: planning, engineering, and the labor cost to commission your process, not to mention the loss of revenue with a shutdown. ZeroDT specializes in specifying overvoltage surge protection for any process or application.
ZeroDT has found a niche in multiple different industries protecting delicate instrumentation. Any industry that uses remote measurements or controlled devices can be susceptible to lightning-induced overvoltage transients into the field cables. Those remote/field devices need overvoltage protection, and ZeroDT field protectors are designed to be small enough to mount inside the equipment you want to protect. Real estate is key.
When it comes to surge protection, the rule of thumb is to mount your surge protection device or SPD as close to the protected equipment as possible. As wire length is time and voltage – you need to respond to overvoltages FAST and you need to keep the voltages as low as possible.
- Non-degrading SASD technology
- Response time of fewer than 5 nanoseconds
- Suitability for multiple communications and power applications (both analog and digital)
- Repeatable voltage clamping levels
- Small form factor allows mounting inside the transmitter enclosure for optimal protection
- Suitable for use in hazardous locations (Class 1, Div 2)
With all those benefits, ZeroDT provides you with the superior technology in a design that is optimized for providing protection in your application. With your new ZeroDT device, your equipment is protected from overvoltages and damage of those surge currents.
Powerful Surge Protection Devices for Every Application
ZeroDT offers a wide range of surge protection devices (SPD). There are many different voltages and uses to protect circuits, which is why we’ve created an SPD for each situation you might encounter. Choose from a surge protector that works for your unique needs or work with us to develop a custom solution.
Find the Perfect Surge Protector for Your Industrial and Commercial Applications
At ZeroDT, our job is to protect your equipment and help eliminate system downtime. We can help you choose one of our standard products or customize a design to fit your needs. Schedule a consultation and speak with a specialist about surge protection for your application.
More Information
ZeroDT Single Loop or 2-wire Field Surge Protectors
These products are unique because of their small form factor and non-degrading SASD protection technology (their small size allows them to be mounted inside of the field devise housing to provide the best protection). We offer units that are designed for your applications from 12 V DC all the way up to 120 V AC. These units can be used with confidence on your analog measurement circuits (4-20 mA loops) or on digital communication (CAN bus, HART protocol, Profibus and dc power loops) without hampering readings or communications in any way (they are essentially invisible to the circuit until an overvoltage transient event occurs, and then as soon as the voltage returns to normal, they return to their original state – without degradation and ready for the next surge).
ZeroDT Two Loop or 4-wire Field Surge Protectors
These products are like having two of the single loop surge or 2-wire protectors (above) built into a single unit with a single Ground/Earth lead. Each of the 4 lines is completely independently protected to eliminate the chance of an overvoltage on one affecting the other lines. These five-wire devices are small enough to fit inside the housings 12 V and 24 V transmitters/devices, yet pack the industrial horsepower to handle the surge current without degradation. These units are perfect for applications such as multi-variable transmitters, or control devices with an analog current loop and a DC power loop.
ZeroDT DIN Rail Mount Surge Protector
The ZeroDT I/O-24 DIN Rail Mount Protector allows the user to protect two loops or 4-wires in only ½” of DIN rail space. It utilizes the same non-degrading SASD industrial surge protection that we use in our field mount units but engineered into a form factor that is optimized for cabinet and panel applications. It is fully bidirectional so mounting direction errors are eliminated, and it provides protection against transients coming into the electronics from the field as well as against overvoltages going out to the field devices. The I/O-24 easily mounts to the Grounded DIN rail and its top accessible compression lugs allow for #26 – #14 AWG connections.