ABB Spec-Setter Heavy-Duty Non...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$320.64
ABB Spec-Setter Heavy-Duty Nonfused Safety Switch, 3-Pole, NEMA 1, 600V

ABB Spec-Setter Heavy-Duty Nonfused Safety Switch, 3-Pole, NEMA 1, 600V

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Model: THN3361R

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

$320.64
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ABB Spec-Setter Heavy-Duty Nonfused Safety Switch, 3-Pole, NEMA 1, 600V

The ABB Spec-Setter Heavy-Duty Nonfused Safety Switch is a heavy-duty manual disconnect built for industrial and commercial power distribution, rated 600V AC with a 3-pole configuration for three-phase systems. This nonfusible switch delivers dependable 400A disconnect capability without integral fuse protection, making it a straightforward isolation point where overcurrent protection is handled elsewhere in the electrical system. Housed in a NEMA 1 enclosure rated for dry, indoor environments, it provides safe, code-compliant isolation of electrical loads during maintenance, service, and lockout/tagout procedures in demanding facilities.

Key Features

  • Amperage Rating: 400A rating supports heavy-duty circuit disconnect applications.
  • Number of Poles: 3-pole configuration for three-phase power distribution systems.
  • Voltage Rating: 600V AC rating for higher-voltage industrial and commercial power systems.
  • Enclosure Type: NEMA 1 indoor enclosure rated for use in dry, indoor environments.
  • Switch Type: Nonfusible (NONFUSE) design provides disconnect-only switching without fuse holders.
  • Application Duty: Rated for Heavy application duty, suited for demanding industrial service.
  • Packaging: Supplied 1 EA per package for straightforward ordering and stocking.

Certifications & Compliance

  • NEMA 1 Indoor Enclosure Rating

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Industrial and Commercial Power Distribution
  • Heavy-Duty Manual Disconnect Switching
  • Three-Phase Motor and Equipment Isolation
  • Indoor Electrical Panel and Switchgear Installations
  • Manual Load Disconnect for Maintenance Safety

Why ABB?

ABB is a trusted manufacturer of industrial-grade electrical distribution equipment, and this Spec-Setter Heavy-Duty Nonfused Safety Switch reflects that standard with its rugged 400A, 600V-rated construction. The NEMA 1 enclosure and 3-pole configuration make it a reliable choice for professional electricians specifying dependable disconnect switching for demanding indoor industrial applications where consistent, code-compliant performance is essential. Electricians and facility engineers can specify this switch with confidence for panel isolation, equipment servicing, and everyday disconnect duties across commercial and industrial power systems.

Manufacturer Resources

Product Specs

Product Type:
Safety Switch
Configuration:
3-Pole
Voltage Rating:
600V
Amperage Rating:
400A
Standards:
NEMA 1
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Safety Switches

ABB THN3361R – Frequently Asked Questions

1) What amperage ratings does the ABB Spec-Setter THN nonfused safety switch come in?
The Spec-Setter THN heavy-duty nonfused switch is ordered by ampere size: 30A (THN3361R), 60A (THN3362), 100A (THN3363R), and 400A (THN3365). All are 3-pole, 600V AC, in a NEMA 1 enclosure. Size the switch to the load and the upstream overcurrent device, since this is a disconnect only and carries no fuses.
2) Can I use an ABB THN nonfused safety switch outdoors or in a washdown area?
No. The THN Spec-Setter is built into a NEMA 1 enclosure, which is dry indoor duty only. For a wet, outdoor, or corrosive location you need a different enclosure rating, such as the Square D VisiPacT heavy duty fused switch in NEMA 4X stainless steel.
3) Does this ABB safety switch include fuses or fuse holders?
It does not. The THN is a nonfusible switch, so there are no fuse clips or fuse holders inside. It isolates the circuit only, and overcurrent protection has to come from a breaker or fused device elsewhere in the system. If you need the protection in the disconnect itself, order a fused heavy duty switch instead, such as the Square D VisiPacT fused model.
4) Can I use the Eaton double-throw switch in place of the ABB Spec-Setter THN?
Not as a direct replacement. The ABB Spec-Setter THN is a single-throw manual disconnect that isolates one load from one source. The Eaton Heavy-Duty Double-Throw Non-Fused Safety Switch is a K-series double-throw device in a painted steel NEMA 1 enclosure, which is built to transfer a load between two sources, such as utility and generator. Both are non-fused and both are NEMA 1, so if your drawing calls for a plain disconnect the ABB THN is the fit; if it calls for source transfer, the double-throw Eaton is the one to specify.
5) What is an equivalent unfused heavy duty safety switch to the ABB Spec-Setter THN if I need a different brand on the same indoor job?
The Square D VisiPacT Heavy Duty Unfused Safety Switch is the closest cross-brand match. Like the ABB Spec-Setter THN, it is a heavy duty unfused disconnect in a NEMA 1 enclosure, so it serves the same role as an isolation point where overcurrent protection is handled upstream. The ABB THN is offered in a 3-pole, 600V configuration with amperage choices of 30, 60, 100 and 400 amperes, so confirm the VisiPacT unit you order matches the pole count and ampere rating your feeder requires.
6) I need a disconnect outdoors or in a washdown area - the ABB Spec-Setter THN is NEMA 1, so what should I use instead?
The ABB Spec-Setter THN is housed in a NEMA 1 enclosure rated for dry, indoor environments, so it is not the right choice outdoors or where washdown and corrosive atmospheres are present. For those locations, the Square D VisiPacT Heavy Duty Safety Switch in a NEMA 4X stainless steel enclosure is the alternative to specify. Note that the VisiPacT 4X unit is a fused switch, so it carries fuse holders and needs fuses sized to the circuit, where the ABB THN is nonfusible and provides disconnect-only switching.
7) Will a 3-pole 600V disconnect work on a 480V three-phase motor circuit?
Yes. The THN is rated 600V AC, so it covers 208V, 240V, and 480V three-phase systems, and the 3-pole build switches all three ungrounded conductors at once for motor and equipment isolation.
8) Is the ABB THN switch suitable for lockout/tagout during maintenance?
That is its main job. The THN is a manual disconnect used to isolate loads for service, maintenance, and lockout/tagout in industrial and commercial distribution. Heavy duty construction means it is intended for repeated operation rather than occasional use.
9) What is a comparable unfused NEMA 1 disconnect if I want to standardize on another brand?
The Square D VisiPacT heavy duty unfused safety switch in NEMA 1 is the closest cross-brand equivalent we carry to the ABB THN: same unfused, indoor-rated heavy duty concept. Match the ampere size and pole count to whatever THN you were specifying.
10) For a three-phase motor isolation switch, how do I choose between the ABB Spec-Setter THN and the Square D VisiPacT unfused switch?
Both are heavy duty unfused NEMA 1 disconnects suited to indoor three-phase equipment isolation. The ABB Spec-Setter THN is a 3-pole, 600V switch offered at 30, 60, 100 and 400 amperes, which lets you standardize a single ABB family across small control panels and large 400A feeders on the same facility. The Square D VisiPacT unfused switch is the Square D equivalent for facilities already standardized on that brand. Match pole count, voltage and ampere rating to the motor circuit either way.
11) How is the ABB THN safety switch packaged for ordering?
Each Spec-Setter THN switch ships 1 each per package, so the order quantity equals the number of disconnects you need. Ampere size is selected by catalog number, not by option kit.
How fast can I get the ABB THN3361R delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 ABB THN3361R come with a warranty?
Absolutely. The ABB THN3361R 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 ABB THN3361R?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the ABB THN3361R from ZenSupply?
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