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ZeroDT

Industrial Surge Protectors

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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. We have three categories of surge protection products:

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.

Compare ZeroDT Industrial Surge Protection Products

Product
Description
Nominal
Voltage
Max Cont.
Operating
Voltage
8/20μs, Line-to-Ground:
10/1000μs, Line-to-Ground:
Product Dimensions
Grounding
Wiring
ZeroDT 12-1
Perfect for protecting 12 Volt single loop or 2-wire applications.
12 Vdc
18 Vdc
>600 Amps
>65 Amp
12.4 mm H, 12.4 mm W, 18.9 mm D
1 Green Wire
1 Red Wire: Positive/Negative
1 White Wire: Positive/Negative
ZeroDT 12-2
Appropriate for protecting 12 Volt two loop or 4-wire applications.
12 Vdc
18 Vdc
>600 Amps
>65 Amps
18.7 mm H, 25.1 mm W, 12.7 mm D
1 Green Wire
2 Red Wires: Positive/Negative
2 White Wires: Positive/Negative
ZeroDT 24-1
Designed to protect a 24 Volt single loop or 2-wire applications.
24 Vdc
36 Vdc
>600 Amps
>65 Amps
12.4 mm H, 12.4 mm W, 18.9 mm D
1 Green Wire
1 Red Wire: Positive/Negative
1 White Wire: Positive/Negative
ZeroDT 24-2
Optimized for protecting 24 Volt two loop or 4-wire applications.
24 Vdc
65 Vdc
>600 Amps
>65 Amps
18.7 mm H, 25.1 mm W, 12.7 mm D
1 Green Wire
2 Red Wires: Positive/Negative
2 White Wires: Positive/Negative
ZeroDT 48-1
A single loop or 2-wire protector for 48 Volt applications.
48 Vdc
65 Vdc
>600 Amps
>65 Amps
18.7 mm H, 25.1 mm W, 12.7 mm D
1 Green Wire
1 Red Wire: Positive/Negative
1 White Wire: Positive/Negative
ZeroDT 120-1
Protects your single loop or 2-wire applications with voltages up to 120 VAC or 170 Vdc.
120 VAC or 170 Vdc
138 VAC or 195 Vdc
>600 Amps
>65 Amps
12.7 mm H, 25.1 mm W, 32.1 mm D
1 Green Wire
1 Red Wire: Positive/Negative
1 White Wire: Positive/Negative
ZeroDT IO-24
The perfect addition to any industrial facility that operates a number of electronic devices.
24 Vdc
36 Vdc
>1200 Amps
>130 Amps
111 mm H, 12.6 mm W, 99 mm D
Mounts to Grounded DIN Rail
Compression lugs accept #26 to #14 AWG conductors

Get a Custom Surge Protector

At ZeroDT, we care about offering you products that provide superior technology and value compared to other passive transient surge protectors on the market. If you don’t see a product that fits your specifications, we can engineer a custom ZeroDT electrical surge protection package using our SASD technology. Our job is to help you protect your equipment/devices and eliminate downtime.

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About Our Company

ZeroDT is a leader in industrial surge protection. Boasting a response time of less than five nanoseconds, our American-made products are engineered to protect critical power and communications systems from overvoltage. Our solutions have earned us the trust of some of the world’s largest companies for applications that include oil and gas refining, aerospace, and water/wastewater.

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Phone: 713-614-8737

Mailing Address: 935 Eldridge Rd., Suite 209, Sugar Land, TX 77478

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