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Point-of-Use

Point-of-Use Surge Protection Devices

Installing point-of-use surge protection devices is one of the best ways to prevent system damage and avoid expensive downtime. While installing surge supression products at the electrical service entrance is a smart place to start, it’s not enough. Browse our full line of point-of-use surge protection devices and keep your critical systems protected and online. Need help finding the best surge protection solutions? The Surge Protection Device Selection Tool helps you select SPDs for a broad range of applications from small data rooms to enterprise data centers.

ASCO Model 233 (Edco SPA-100T and SPA-300) Surge Protective Device

The ASCO Model 233 Surge Protective Device is designed to protect sensitive electronic equipment such as traffic controllers, from high energy surges. The Model 233 incorporates MOV technology which clamps… read more →

ASCO Model 250 (Edco INXT) Surge Protective Device

The ASCO Model 250 (Islatrol INXT) is a 120VAC, 60A, EMI/RFI filter. The Model 250 is a series-connected device, designed to filter electrical transients impinging on electrical distribution within a traffic control cabinet.

ASCO Model 258 (Edco SHA-1250) Surge Protective Device

The ASCO Model 258 Surge Protective Device is an upgraded version of the Edco SHA-1210IRS. The two models are equal in surge protection performance. Model 258 also incorporates two LEDs for failure indicator in a modular package (utilizes 12-pin Beau connector). The hardwire terminal base (SHABA accessory) accommodates all wiring and the protection module is designed for easy replacement.

ASCO Model 238 (Edco TCS-HWR) Surge Protective Device

Utilizing bipolar Silicon Avalanche Diode (SAD) technology, the ASCO Model 238 features a two-stage design that provides superior protection for sensitive equipment and for ANSI/IEEE C62.41 Location Category A applications.

ASCO Model 251 (Edco SHP Series) Surge Protective Device

The ASCO MOdel 251 (Edco SHP) Surge Protective Device’s hybrid design exhibits performance levels unattainable with simple “shunt type” protectors. The two active clamp stages, large inductor and shunt capacitance… read more →

ASCO Model 234 (Edco SHA-1201) Surge Protective Device

The ASCO Model 234 (Edco SHA-1201) Surge Protective Device is specifically designed for type 170 traffic controller cabinets that require power neutral to remain isolated from cabinet earth ground. Protection… read more →

ASCO Model 254 (Edco ACP-340) Surge Protective Device

The ASCO Model 254 (Edco ACP-340) filtering surge protector absorbs power line noise and switching transients that other suppressors and RFI filters pass through. In addition, this unit offers better… read more →

ASCO Model 235 (Edco SHA) Surge Protective Device

The ASCO Model 235 (Edco SHA) Surge Protective Device provides surge protection for highway lighting/street pole applications. The suppressor is encapsulated in a compact watertight enclosure that can be installed… read more →

ASCO Model 254 (Edco SHA-1210) Surge Protective Device

The ASCO Model 254 (Edco SHA-1210) Surge Protective Device and Filter absorbs power line noise and switching transients that other suppressors and RFI filters pass through. The Model 254 can… read more →

ASCO Model 237 (Edco FAS-120AC) Surge Protective Device

The ASCO Model 237 (Edco FAS-120AC) Surge Protective Device is designed to protect AC distribution panel circuits or 120V power supplies feeding sensitive electronic equipment.

ASCO Model 270 (Islatrol E) Surge Protective Device

ASCO Model 270 (Islatrol E) Surge Protective Device provides continuous sine wave Active Tracking Filtering, normal mode (L-L or L-N), for protection from spikes, transients and noise. Available in either… read more →

ASCO 275 Surge Protective Device (Islatrol IC+)

The ASCO Model 275 (Islatrol IC+ Series) AC Power Filter is a series connected high-frequency noise filter with transient protection. It offers the flexibility of either receptacle/line cord connection or… read more →

ASCO Model 277 (Islatrol™ IE) Surge Protective Device

The ASCO Model 277 (Islatrol™ IE) is a series-connected DIN or flange mounted high frequency noise filter and surge suppressor. Its ideal applications include critical industrial loads drawing up to… read more →

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