Surge Suppression

DynaShield® Surge Suppression & Protection Devices

When clean, uninterrupted power is crucial, Alltec’s next-generation surge protection devices (SPDs) deliver the highest level of performance to ensure the safety and reliability of your electrical systems.

Our advanced SPDs incorporate industry-leading components, including patented thermally protected Metal Oxide Varistor (MOV) technology, state-of-the-art filtering, and extremely reliable monitoring circuitry—all backed by our commitment to supplying the safest protection solutions on the market.

Electrical disturbances are inevitable. To ensure the lifespan of your expensive electrical equipment is not compromised, it must be safeguarded with superior technology. A power quality system is incomplete without strike termination devices, a low-resistance grounding network, and surge protection.

Need Assistance? Contact an Alltec solutions expert today to find out which surge protection device fits your application best.

Surge Suppression

As the vital second tier of the Alltec Protection Pyramid™, DynaShield® products diminish the impact of random high-energy, short-duration electrical transients caused by atmospheric phenomena (such as lightning strikes), utility switching, inductive loads, and internally generated overvoltages.

Installation Guide: Locate the numbers 5 and 6 on the application maps to the right to view typical installation locations for our surge devices.

Shop Surge Devices

Filter your search by service voltage or maximum surge current (Imax) per phase using our SPD Selection Guide, SPD Application Map, and available Downloads.

Features & Benefits

  • Full-Mode Suppression: Features dedicated “common-mode” suppression circuits to mitigate lightning-induced activity, along with dedicated “normal-mode” circuits to suppress non-lightning-generated transient activity.

  • Dual-Encapsulated Components: Available on select models to ensure highly efficient, high-performance operation, wide operational temperature ranges, and low leakage current characteristics.

  • Advanced Diagnostics: Equipped with neutral/ground monitoring circuitry, internal system fault indicators, integrated fault indication contacts, surge counters, audible alarms, and dry relay contacts (on select models).

  • Enhanced Safety: Features a patented, rapid-response thermal disconnecting mechanism to guarantee safe operation.

  • Certified Protection: Listed to UL 1449 4th Edition standards for Type 1 and Type 2 applications, featuring a high 200 kArms Short Circuit Current Rating (SCCR).

  • Robust Design: Housed in an array of rugged NEMA 4 and 4X rated enclosures, delivering high surge current capacity, fast response and recovery times, tight clamping levels, and frequency-reactive filtering.

Contact us today to find out which risk mitigation products and services work best for your industry.

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Browse Our DynaShield® Product Line

DynaShield® ADSc

SURGE PROTECTOR

DynaShield® ADSc: High-performance surge protectors engineered specifically for critical electrical panel locations.

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DynaShield® ADSi

SURGE PROTECTOR

DynaShield® ADSi: Comprehensive protection across all phases and modes against transient surges, ensuring your mission-critical electronic equipment is secure.

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DynaShield® ADSlp

SURGE PROTECTOR

DynaShield® ADSlp: Designed to thoroughly protect sensitive electronics found in commercial and industrial lighting panels, HVAC systems, traffic signals, and security systems.

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DynaShield® ADSrm

SURGE PROTECTOR

DynaShield® ADSrm: A cost-effective surge protector for any critical facility location, ranging from high-risk telecom and petroleum sites to point-of-use laboratory devices, manufacturing equipment, and computers.

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DynaShield® ADSrs

SURGE PROTECTOR

DynaShield® ADSrs: Whole-house surge suppression engineered to protect a modern home’s most significant expense—its electronics—including appliances (dryers/ranges), HVAC units, and home entertainment systems.

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DynaShield® ADSx

SURGE PROTECTOR

DynaShield® ADSx: Hardwired AC surge protection devices featuring lightning-fast response times to offer superior voltage protection levels at high surge currents.

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DynaShield® PT-RD AC

SURGE PROTECTOR

DynaShield® PT-RD AC: Engineered to protect single-phase, low-voltage AC power supply systems against transient surges at Lightning Protection Zone 1 (LPZ 1) and higher.

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DynaShield® PT-RD DC

SURGE PROTECTOR

DynaShield® PT-RD DC: Designed to protect DC power supply systems against transient surges at LPZ 1 and higher. Ideal for SCADA systems, PLCs, and other highly sensitive electronic equipment.

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DynaShield® KSB LC

SURGE PROTECTOR

DynaShield® KSB LC: Specialized protection designed for use at LPZ 0A–2 or higher to secure two-wire unbalanced analog circuits, such as 4–20 mA loops.

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DynaShield® KSB LJ8

SURGE PROTECTOR

The KSB LJ8 surge protection devices are designed to protect single RJ-45 connector for 10 BT/100 BT/1000 BT data signals with transmission rates up to 1000 Mbps.

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DynaShield® KSBT SC

SURGE PROTECTOR

DynaShield® KSBT SC: Designed for use at LPZ 0B–2 or higher to protect two-wire unbalanced analog signals typically utilized in measurement and control circuits, such as thermocouples.

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DynaShield® KSBT C

SURGE PROTECTOR

DynaShield® KSBT C: Heavy-duty protection series designed for use at LPZ 1–2 or higher to safeguard two-wire, single-pair unbalanced analog circuits like 4–20 mA loops.

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