Square D Surge Protection Device

[Doria Vilcan]

SquareD brand Surgelogic SDSA1175 products are compact and affordable Surge Protective Devices (SPDs). SDSA1175 SPDs offer a simple means to bring down initial surges to manageable levels and can offer additional value in a cascaded SPD system. Their compact design allows surge suppression to be installed adjacent to power panels or directly on sensitive equipment.

Square D brand Surgelogic SDSA1175 SPDs utilize high-energy suppression circuitry that can be located at any point in the electrical system. As a Type 1 rated device, they have the flexibility to be used with or without an Overcurrent Protection Device (OCPD). SDSA1175 SPDs provide surge suppression for equipment from severe transient activity. Each MOV is individually fused and the products carry a NEMA Type 4X rating suitable for installing indoors, outdoors, or in other harsh environments.

The Square D HEPD80 2 Pole Surge Protector is designed for industrial applications and can be used for suppressing the unexpected surge from exposed panels. It manages thermal effects from deteriorating Mechanism Operated Cell (MOC) and keeps appliances safe from damaging surges. In case the suppressor integrated into this device needs to be replaced an audible alarm is provided for signaling the need for a change. It comes with the mounting hardware and has a plastic enclosure that offers insulation for added safety. This surge protector can be used with or without an OPCD (Overcurrent Protection Device). The HEPD80 has a voltage rating of 120/240 VAC. It has the following dimensions: Length 3.60" Width 3.00" and Depth 3.75".

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The majority of orders will the same day the order is placed for customers. In certain circumstances, SuperBreakers may reserve up to 5 business days to consolidate orders. For projected delivery date information, please contact your sales rep at 866-557-8737.

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All International orders require a $500 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

Whole Home Surge Protection provides advanced appliance and electronics protection from surge damage. When surge protection is installed at the electrical panel, it helps protect all the devices in the home, including those that are not plugged into a surge plug strip (e.g. washers, dryers, stoves, refrigerators).

A compact surge suppressor that mounts directly to any loadcenter from any manufacturer. Easy to install. This device offers 80ka protection with a 5-year $75,000 connect equipment coverage warranty.

A compact surge suppressor that mounts directly to any loadcenter from any manufacturer. Easy to install. This device offers 50ka protection with a 3-year $50,000 connect equipment coverage warranty.

Dustin Stelzer from Electrician U installs two different styles of Type 1 Whole House Surge protectors. Products featured are the QO250PSPD Plug-on Neutral Style and the HEPD80 which requires a hard wire connection.

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Mersen Protistor square body fuses are available in eight different body sizes, each size having more than seven worldwide acceptable mounting styles, provide maximum flexibility in equipment design and ultimate protection.

DITEK Surge Protection is your first line of defense for Video Surveillance, Fire, Networking, Communications, Intrusion Detection, Access Control and AC Power systems. We have led the industry in the design and manufacturing of surge protection solutions for over 30 years, incorporating the latest technologies for maximum performance and protection. Every day installers, integrators, engineers and electricians count on DITEK Surge Protection Devices (SPDs) to safeguard their fire panels, video surveillance systems, network devices, burglar alarms, access control systems and AC power. When planning your next project, choose the trusted brand of professionals.

I'm installing some surge protection for a radio installation, and I have a somewhat unusual requirement of installing the surge protection device (SPD) at an Earth ground where the antenna feedline enters, which is about 100' from the main panel. This is because the antenna by virtue of its design must be grounded, it's not feasible to run the feedline to the existing electrical service ground, and so effective surge protection requires limiting the surge voltage at another ground location, where the feedline enters the house.

In a previous question I was told there are SPDs with four wires, separating neutral and ground. Thus, they can limit the voltage between ground and neutral without requiring a direct connection between them away from the main panel, which would be hazardous. However, I need to protect only one, 120V, single-phase circuit. Using one of these four-wire SPDs, one of the wires would go unused.

I'm wondering, is it safe and permissible to use a 3-wire SPD (like the SDSA1175 I have in my hand) in this situation? The neutral connection would go to ground, one line connection to line, and the other line connection to neutral? Despite the naming clash, I can't imagine this is electrically different than the four-wire case, essentially a MOV between ground and each protected wire. Neutral isn't directly connected to ground, but in the event of a surge the MOV would clamp it within home hundreds of volts relative to ground.

Do keep in mind, that one of the 'ready' lights won't come on, because each ready light depends on a separate hot having voltage potential between it and what it thinks is neutral. It's likewise not unrealistic to expect any faulty indicators to fail similarly. But the MOVs will do the same job regardless.

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