ABB Spec-Setter General Duty N...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$131.50
ABB Spec-Setter General Duty Non-Fused Safety Switch, 30A 3P 240V NEMA 1

ABB Spec-Setter General Duty Non-Fused Safety Switch, 30A 3P 240V NEMA 1

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Model: TGN3321

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

$131.50
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ABB Spec-Setter General Duty Non-Fused Safety Switch, 30A 3P 240V NEMA 1

ABB's Spec-Setter General Duty Non-Fused Safety Switch delivers dependable disconnect protection for residential and light commercial electrical systems. This 3-pole switch is rated 30A at 240V and housed in a NEMA 1 (Indoor) enclosure, making it well suited for general-duty applications where a rugged, easy-to-install disconnect is required. Backed by ABB's reputation for reliable, code-compliant electrical products, this non-fused safety switch is part of the trusted Spec-Setter line built for straightforward, worry-free circuit disconnection in panelboards, equipment rooms, and general-purpose distribution setups.

Key Features

  • Amperage Rating: 30A rating supports general duty switching and circuit disconnection applications.
  • Number of Poles: 3-pole configuration for multi-conductor circuit disconnection needs.
  • Voltage Rating: 240V rating suited to standard residential and light commercial electrical systems.
  • Enclosure Type: NEMA 1 (Indoor) enclosure designed for general duty, indoor installations.
  • Switch Configuration: Non-fused disconnect switch for simple on/off circuit control without the need for fuse protection or replacement.
  • Application: General duty design suited to residential and light commercial purposes rather than heavy industrial duty.
  • Build Quality: Rugged, reliable, and easy-to-install construction consistent with the broader ABB Spec-Setter safety switch line.

Certifications & Compliance

  • NEMA 1 Indoor Enclosure Rating

Technical Specifications

  • Number Of Poles: 3
  • Country of Origin: UKN
  • Standard: Yes
  • Amperage Rating: 30A

Typical Applications

  • Residential Electrical Disconnects
  • Light Commercial Electrical Installations
  • General Duty Motor and Equipment Disconnects
  • Indoor Panelboard and Circuit Protection Setups
  • Renovation and New Construction Wiring Projects

Why ABB?

ABB manufactures a wide range of general duty and heavy-duty safety switches engineered for applications from residential and light commercial settings to demanding industrial environments, including cement foundries, steel mills, and processing plants. This Spec-Setter safety switch reflects ABB's commitment to rugged, reliable, and easy-to-install disconnect solutions that support safe, code-compliant electrical work across a variety of general duty settings.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Safety Switch
Amperage Rating:
30A
Voltage Rating:
240V
Configuration:
NEMA 1 Enclosure
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Safety Switches

ABB TGN3321 – Frequently Asked Questions

1) Does the ABB TGN3321 disconnect take fuses, or do I need overcurrent protection somewhere else?
It is a non-fused disconnect. There are no fuse clips inside, so the TGN3321 only opens and closes the circuit. Overcurrent protection has to come from the upstream breaker or a fused disconnect elsewhere on the circuit. If you want the fuses at the equipment, order a fused switch instead.
2) Will a 30A 3-pole ABB Spec-Setter switch work as a disconnect for a 208V or 240V three-phase rooftop unit?
It is rated 30A at 240V with three poles, so it suits a three-phase load at 240V or below, including nominal 208V systems, as long as the full-load current stays within 30A. Two cautions: it is a general duty switch intended for residential and light commercial use, not heavy industrial duty, and the NEMA 1 enclosure is indoor only, so a rooftop condenser needs a rainproof enclosure instead.
3) What should be used instead for a wet, washdown, or corrosive outdoor location?
The ABB Spec-Setter TGN3321 uses a NEMA 1 indoor enclosure and should be kept to dry indoor locations. For wet, washdown, or corrosive environments, the Square D VisiPacT VH324NDSGL is a heavy duty fused safety switch in a NEMA 4X stainless steel enclosure. Note that the VH324NDSGL is a fused switch, so it requires fuses sized for the circuit, while the ABB unit is non-fused and provides disconnect only.
4) Can a double-throw switch be used in place of the ABB TGN3321?
No, they do different jobs. The ABB Spec-Setter TGN3321 is a single-throw non-fused disconnect that simply opens and closes one 3-pole circuit at 30A, 240V. The Eaton DT-223UGK is a heavy duty double-throw non-fused switch in a painted steel NEMA 1 enclosure, built to transfer a load between two sources such as a utility feed and a generator. If the job is a plain equipment disconnect, the double-throw unit is the wrong device even though both are non-fused and NEMA 1.
5) What is the heavy duty equivalent if a 30A general duty indoor disconnect is not rated for the application?
The ABB Spec-Setter TGN3321 is a general duty non-fused switch rated 30A at 240V in a NEMA 1 indoor enclosure, intended for residential and light commercial circuits rather than industrial service. Where a heavy duty unfused switch is specified for an indoor location, the Square D VisiPacT unfused safety switch VHU361N is a heavy duty series unit in a NEMA 1 enclosure. Both are unfused disconnects for indoor mounting; the difference is the duty classification the drawing calls for.
6) What is the difference between a general duty switch like the ABB TGN3321 and a heavy duty disconnect?
General duty, which is what the Spec-Setter TGN3321 is, is built for residential and light commercial circuits at 240V and below. Heavy duty switches are built for higher voltage classes and harder industrial service, with more robust interiors and more enclosure options. If the job is an apartment unit, a small retail space, or a light equipment disconnect indoors, general duty is the right call. For a plant floor or a 600V system, look at a heavy duty unfused switch such as the Square D VisiPacT in NEMA 1.
7) What is the exact part number for the ABB 30A 3-pole non-fused general duty safety switch?
TGN3321 is the ABB catalog number. That designation covers the 30A, 3-pole, 240V non-fused Spec-Setter general duty switch in a NEMA 1 indoor enclosure. Quote it as-is when you are matching what is already installed.
8) Is a fused switch needed, or will the non-fused ABB TGN3321 work for a motor disconnect?
The ABB Spec-Setter TGN3321 is non-fused, so it provides on/off circuit disconnection without fuses to stock or replace, and it suits general duty motor and equipment disconnects where overcurrent protection is already provided upstream. Where local overcurrent protection must sit at the disconnect itself, a fused switch such as the Square D VisiPacT VH324NDSGL is the fused alternative. Both are disconnect switches; the deciding factor is whether the circuit needs fuses at that point.
9) Can I use the third pole on the TGN3321 for the neutral on a single-phase circuit?
The third pole is a switched pole, not a neutral terminal. Switching a grounded conductor is not something you do with a service pole, so on a 240V single-phase feed you land the two hots on two poles and leave the third unused, or bring the neutral to a separate neutral kit if the equipment needs one. The switch itself is a 3-pole, 30A, 240V device.
How fast can I get the ABB TGN3321 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 TGN3321 come with a warranty?
Absolutely. The ABB TGN3321 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 TGN3321?
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
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