Square D Surgelogic HWA Surge ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,853.09
Square D Surgelogic HWA Surge Protective Device, 120V 1-Phase, Type 2

Square D Surgelogic HWA Surge Protective Device, 120V 1-Phase, Type 2

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Model: HWA11

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,853.09
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Square D Surgelogic HWA Surge Protective Device, 120V 1-Phase, Type 2

The Square D Surgelogic HWA Surge Protective Device is an externally mounted, UL Type 2 SPD engineered for 120V AC, 1 phase, 2-wire electrical systems. Designed for external installation, it enables convenient retrofitting and maintenance access without requiring modifications to internal panel configurations. Rated for a 100 kA surge current with a 20 kA nominal discharge current and 10 kA impulse current (Iimp), this device is housed in a durable polycarbonate enclosure and is listed to UL 1449 Ed. 5, UL 1283, UL 96A, and CSA C22.2 No 269.2 standards.

Key Features

  • Surge Protection Rating: 100 kA surge current with 10 kA impulse current (Iimp) and 20 kA nominal discharge current for reliable protection against transient voltage events.
  • Operating Voltage: Rated operational voltage (Ue) of 120V AC with a maximum continuous operating voltage (Uc) of 150V.
  • Wiring Configuration: 1 phase, 2-wire external installation for straightforward retrofit onto existing panels without internal modification.
  • Durable Construction: Polycarbonate enclosure suited for external mounting in commercial and industrial environments.
  • Terminal Connections: Accepts wire AWG 10 connections for straightforward field wiring.
  • Local Signalling: Status LED indicators (red per phase fault, green per phase normal operation), an alarm enable/disable switch, and dry contacts are provided for remote monitoring.
  • Environmental Range: Rated for operating altitudes of 0...12000 ft, storage ambient temperature of -40 to 60 °C, and relative humidity of 0-95%.

Certifications & Compliance

  • UL 1449:ed. 5
  • UL 96A
  • CSA C22.2 No 269.2
  • UL 1283

Technical Specifications

  • Take Back: No
  • Returnability: Yes
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: Yes
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Legacy WEEE Scope: In
  • Packaging Made With Recycled Cardboard: No
  • With Recycled Cardboard: No
  • WEEE Product Category: 4
  • Without Single Use Plastic: Yes
  • ROHS Exemption Information: Yes
  • Surge Current: 100 kA
  • Device Short Name: HWA
  • Uc Maximum Continuous Operating Voltage: 150 V

Typical Applications

  • Commercial and Industrial Electrical Panels
  • Retrofit Surge Protection Installations
  • Single-Phase Electrical Distribution Systems
  • Panelboard and Load Center Protection
  • Renovation and New Construction Electrical Upgrades

Why Square D?

Square D backs the Surgelogic HWA with a polycarbonate enclosure, dry contact and LED status monitoring, and listing to UL 1449 Ed. 5, UL 1283, UL 96A, and CSA C22.2 No 269.2 standards. This combination of external mounting convenience and code-recognized surge protection performance makes it a dependable choice for protecting 120V single-phase electrical systems in professional installations.

Manufacturer Resources

Product Specs

Product Type:
Surge Protective Device
Voltage Rating:
120V
Series:
Surgelogic
Listing:
UL Listed
Standards:
UL 1283
Product Material:
Polycarbonate
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Panelboards & Load Centers

Square D HWA11 – Frequently Asked Questions

1) Will the Square D Surgelogic HWA11 work on a 120V single-phase, 2-wire service?
That's exactly what the HWA11 is built for. It's rated for 120V AC, 1 phase, 2-wire systems, with a maximum continuous operating voltage (Uc) of 150V. If your panel is 120/240V split-phase, 208Y/120 three-phase, or 480V, this is the wrong device for it.
2) Does the Surgelogic HWA mount inside the panel or outside it?
Externally. The HWA is an externally mounted SPD, so it bolts to the outside of the enclosure and lands its leads in the panel, with no internal reconfiguration needed. That's what makes it practical on an existing panelboard or load center where there's no room for an internal-mount unit.
3) Is the Surgelogic HWA a Type 1 or Type 2 SPD, and can I put it on the line side of the main?
It's a UL Type 2 device, so it belongs on the load side of the service disconnect overcurrent protection. Line-side (service entrance, ahead of the main) installations call for a Type 1 SPD instead.
4) What is the difference between the Square D Surgelogic HWA11 and the Eaton BRNSURGE10 surge protective device?
They protect at different levels and mount differently. The Surgelogic HWA11 is an externally mounted UL Type 2 SPD rated 100 kA surge current with a 20 kA nominal discharge current and 10 kA impulse current, wired for 120V AC 1-phase 2-wire service in a polycarbonate enclosure, with LED phase status, an alarm enable/disable switch and dry contacts for remote monitoring. The Eaton BRNSURGE10 is a two-pole 10 kA device in the BR Series, designed to occupy breaker positions in a BR load center rather than hang outside the panel. If the job calls for an external retrofit onto an existing 120V panel without opening up the interior, the HWA11 is the one built for it; if the panel is a BR load center and a plug-in two-pole footprint is wanted, the Eaton part fits that pattern.
5) I need surge protection inside a BR load center instead of an external box - what should I use?
The Square D Surgelogic HWA11 is built for external mounting on the outside of a panel and wired in with AWG 10 conductors, so it is not the part for a breaker-position install. For a device that sits in a BR load center, the Eaton BRNSURGE10 is a two-pole 10 kA surge protective device in Eaton's BR Series. Confirm the load center is BR-compatible before ordering, since breaker-footprint devices are tied to the panel family they were designed for.
6) What wire size do I need for the Surgelogic HWA leads?
The terminal connections accept AWG 10 conductors. Keep the leads short and straight when you land them on the breaker or bus, since lead length adds let-through voltage on any SPD.
7) What are the surge ratings on the Square D HWA11?
100 kA surge current rating, with a 20 kA nominal discharge current (In) and a 10 kA impulse current (Iimp). The In figure is the one most specs and drawings call out for repeat-duty performance, so check the spec sheet number against 20 kA before you substitute.
8) How do I know if the Surgelogic HWA has failed, and can I monitor it remotely?
Local signalling is built in: a green LED per phase for normal operation and a red LED per phase for a fault condition. There's also an audible alarm with an enable/disable switch, plus dry contacts you can wire back to a BMS or remote annunciator panel so a facility crew sees the fault without walking to the panel.
9) How does the Square D HWA11 compare to the Eaton BRNSURGE10 for a residential-style load center?
Two different install approaches. The Eaton BRNSURGE10 is a BR Series two-pole surge device that plugs into a BR load center like a breaker, so it only suits Eaton BR panels. The Square D HWA11 mounts externally to the enclosure and wires in, which is why it retrofits panels that have no spare breaker spaces or aren't BR-compatible. The HWA11 is a 120V 1-phase, 2-wire device, so match that to your service before choosing.
10) Can I add surge protection to an existing panelboard without shutting down or rebuilding the panel interior?
That's the case the Surgelogic HWA is made for. Because it mounts externally and wires to the panel rather than occupying internal space, you don't have to modify the internal panel configuration to add it, and it stays accessible for later service or replacement. It suits retrofit work on commercial and industrial panels, load centers, and renovation upgrades.
11) Does the Eaton BRNSURGE10 give me the same remote alarm monitoring as the Surgelogic HWA11?
Monitoring is one of the clearer dividing lines. The Surgelogic HWA11 carries red per-phase fault and green per-phase normal LED indicators, an alarm enable/disable switch, and dry contacts that can be run back to a BMS or panel annunciator, which is what institutional and MRO buyers usually need when the SPD sits on a critical panel. The Eaton BRNSURGE10 is described as a two-pole 10 kA BR Series surge protective device; if remote dry-contact signalling is a requirement on the drawing, specify the HWA11 for that feature.
12) Will a 10 kA surge device satisfy a spec that calls out a UL 1449 Ed. 5 Type 2 SPD at 100 kA?
No - the surge current rating has to be met as written. The Square D Surgelogic HWA11 is rated at 100 kA surge current with a 20 kA nominal discharge current and 10 kA impulse current, and is listed to UL 1449 Ed. 5, UL 1283, UL 96A and CSA C22.2 No 269.2. The Eaton BRNSURGE10 is a two-pole 10 kA BR Series device, a different surge current class, so it would not answer a 100 kA callout even though both are surge protective devices. Match the kA rating and the UL listing on the submittal before substituting.
13) Can I use the Square D Surgelogic HWA11 on a 208V or 240V two-pole circuit?
The Surgelogic HWA11 is configured for 120V AC, 1-phase, 2-wire systems with a maximum continuous operating voltage of 150V, so it is not the device for a two-pole higher-voltage feed. The Eaton BRNSURGE10 is a two-pole BR Series 10 kA surge protective device, which is the two-pole form factor rather than a single-phase 2-wire external unit. Verify the system voltage against the SPD's rated operational voltage on any surge device before it goes on the panel.
14) Can the Surgelogic HWA be mounted outdoors or in an unheated mechanical room?
The housing is polycarbonate and the unit is rated for 0 to 12,000 ft altitude, 0-95% relative humidity, and a storage ambient of -40 to 60 degrees C. Nothing in the ratings names a NEMA outdoor enclosure type, so for a wet or weather-exposed location plan on mounting it inside a rated enclosure.
How fast can I get the Square D HWA11 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D HWA11 come with a warranty?
Absolutely. The Square D HWA11 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D HWA11?
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