Description
General Duty Safety Switches
ABB General Duty Safety Switches are designed for residential, light-commercial, and compatible equipment-disconnect applications requiring a fusible disconnecting means. This product family includes 30A, 60A, 100A, and 200A configurations with indoor NEMA 1 and outdoor NEMA 3R enclosure options.
Available models include both 2-pole and 3-pole configurations. ABB specifies these general-duty switches for 240V AC applications, with conductor ranges and horsepower ratings varying according to switch size and catalog number.
Product Highlights
- ABB General Duty safety switch family
- Fusible disconnect-switch construction
- 240V AC rated configurations
- 30A, 60A, 100A, and 200A options
- 2-pole and 3-pole models
- NEMA 1 indoor configurations
- NEMA 3R outdoor configurations
- Copper and aluminum conductor compatibility
- Motor horsepower ratings available by model
- GSA compliant
- UL Listed
- cUL Listed
- Nine catalog-number options
Technical Specifications
| Manufacturer | ABB |
|---|---|
| Product Category | General Duty Safety Switch |
| Switch Type | Fusible |
| Voltage Rating | 240V AC |
| Available Ampere Ratings | 30A, 60A, 100A, 200A |
| Available Pole Configurations | 2 Pole, 3 Pole |
| Available Enclosures | NEMA 1 Indoor, NEMA 3R Outdoor |
| Conductor Compatibility | Copper / Aluminum - Range Varies by Model |
| GSA Compliance | Yes |
| Listings | UL Listed / cUL Listed |
| Available Catalog Numbers | TG3221R, TG4321, TG4321R, TG4322, TG4322R, TG4323, TG4323R, TG4324, TG4324R |
Construction Details
ABB General Duty safety switches are intended primarily for residential and light-commercial applications requiring a dependable fusible disconnecting means.
The models listed on this page are available with either NEMA 1 indoor or NEMA 3R outdoor enclosures. Each switch is configured for 240V AC service, while pole count, conductor range, horsepower ratings, dimensions, and enclosure construction vary by catalog number.
ABB identifies these switches as both UL Listed and cUL Listed, with GSA compliance listed for the supplied models.
Available Safety Switches
Catalog Number & Configuration
| Catalog Number | Ampere Rating | Poles | Wires | Enclosure |
|---|---|---|---|---|
| TG3221R | 30A | 2 | 3 | NEMA 3R |
| TG4321 | 30A | 3 | 4 | NEMA 1 |
| TG4321R | 30A | 3 | 4 | NEMA 3R |
| TG4322 | 60A | 3 | 4 | NEMA 1 |
| TG4322R | 60A | 3 | 4 | NEMA 3R |
| TG4323 | 100A | 3 | 4 | NEMA 1 |
| TG4323R | 100A | 3 | 4 | NEMA 3R |
| TG4324 | 200A | 3 | 4 | NEMA 1 |
| TG4324R | 200A | 3 | 4 | NEMA 3R |
Selecting the Correct Safety Switch
30A | 2 Pole | Outdoor
Select TG3221R for a 30A, 2-pole, 3-wire general-duty safety switch with a NEMA 3R outdoor enclosure.
30A | 3 Pole | Indoor
Select TG4321 for a 30A, 3-pole, 4-wire configuration with a NEMA 1 indoor enclosure.
30A | 3 Pole | Outdoor
Select TG4321R for a 30A, 3-pole, 4-wire configuration with a NEMA 3R outdoor enclosure.
60A | 3 Pole | Indoor
Select TG4322 for a 60A, 3-pole, 4-wire configuration with a NEMA 1 enclosure.
60A | 3 Pole | Outdoor
Select TG4322R for a 60A, 3-pole, 4-wire configuration with a NEMA 3R enclosure.
100A | 3 Pole | Indoor
Select TG4323 for a 100A, 3-pole, 4-wire configuration with a NEMA 1 enclosure.
100A | 3 Pole | Outdoor
Select TG4323R for a 100A, 3-pole, 4-wire configuration with a NEMA 3R enclosure.
200A | 3 Pole | Indoor
Select TG4324 for a 200A, 3-pole, 4-wire configuration with a NEMA 1 enclosure.
200A | 3 Pole | Outdoor
Select TG4324R for a 200A, 3-pole, 4-wire configuration with a NEMA 3R enclosure.
Fusible Safety Switch Design
The switches in this product group are fusible, allowing compatible fuses to provide overcurrent protection as part of the disconnect assembly.
Fuse type and size should be selected according to the connected equipment, conductor rating, motor requirements, manufacturer instructions, and applicable electrical codes.
Conductor Ranges
| Switch Rating | Catalog Family | Published Cu / Al Wire Range |
|---|---|---|
| 30A | TG3221R / TG4321 / TG4321R | Cu #14-8 / Al #12-8 |
| 60A | TG4322 / TG4322R | Cu/Al #12-2 |
| 100A | TG4323 / TG4323R | Cu/Al #10-1/0 |
| 200A | TG4324 / TG4324R | Cu/Al #2-250 kcmil |
Motor Horsepower Ratings
| Ampere Rating | 240V AC NEC Std 1-Phase | 240V AC NEC Std 3-Phase | 240V AC Time Delay 1-Phase | 240V AC Time Delay 3-Phase |
|---|---|---|---|---|
| 30A | 1.5 HP | 3 HP | 3 HP | 7.5 HP |
| 60A | 3 HP | 7.5 HP | 10 HP | 15 HP |
| 100A | 7.5 HP | 15 HP | 15 HP | 30 HP |
| 200A | 15 HP | 25 HP | 15 HP | 50 HP |
NEMA 1 vs. NEMA 3R
NEMA 1 Indoor
TG4321, TG4322, TG4323, and TG4324 use NEMA 1 enclosures intended for compatible indoor applications.
NEMA 3R Outdoor
TG3221R, TG4321R, TG4322R, TG4323R, and TG4324R use NEMA 3R enclosures intended for compatible outdoor applications.
Common Applications
Residential & Light Commercial
- Residential electrical equipment
- Light-commercial facilities
- HVAC equipment disconnects
- Motor disconnect applications
- Building electrical systems
- Service and maintenance isolation
Equipment Disconnecting
- Air-conditioning equipment
- Pumps and motors
- Mechanical equipment
- Outdoor electrical equipment
- Indoor equipment disconnects
- Compatible 240V loads
Installation & Selection Considerations
- Confirm the required ampere rating before ordering.
- Verify whether a 2-pole or 3-pole switch is required.
- Confirm the number of conductors required by the application.
- Verify that a fusible safety switch is appropriate for the electrical system.
- Select NEMA 1 for compatible indoor applications.
- Select NEMA 3R for compatible outdoor applications.
- Confirm the system does not exceed the 240V AC switch rating.
- Select compatible fuse type and ampere rating separately.
- Verify conductor material and size against the published wire range.
- Confirm motor horsepower requirements where applicable.
- Maintain NEMA 3R enclosure integrity on outdoor models.
- Follow manufacturer terminal and torque requirements.
- Maintain applicable electrical working clearances.
- De-energize equipment before installation or service.
- Verify absence of voltage before working on electrical equipment.
- Installation should be performed by qualified electrical personnel.
- Follow current ABB instructions and applicable electrical codes.
Product Documents
Review the ABB General Duty Safety Switch specifications for catalog-specific ampere ratings, pole and wire configurations, NEMA enclosure ratings, conductor ranges, horsepower ratings, dimensions, listings, and additional manufacturer information.
Need Help Selecting a Safety Switch?
Our electrical and industrial product specialists can help review your ampere rating, pole count, system voltage, fuse requirements, motor horsepower, conductor size, indoor or outdoor enclosure needs, and equipment application before you order.
Frequently Asked Questions
Are these safety switches fusible?
Yes. ABB identifies the listed General Duty models as fusible safety switches.
What voltage are these switches rated for?
The supplied ABB specifications identify these General Duty models as 240V AC switches.
What is TG3221R?
TG3221R is a 30A, 2-pole, 3-wire fusible General Duty safety switch with a NEMA 3R outdoor enclosure.
What is TG4321?
TG4321 is a 30A, 3-pole, 4-wire fusible safety switch with a NEMA 1 indoor enclosure.
What is TG4321R?
TG4321R is a 30A, 3-pole, 4-wire fusible safety switch with a NEMA 3R outdoor enclosure.
What is TG4322?
TG4322 is a 60A, 3-pole, 4-wire fusible safety switch with a NEMA 1 indoor enclosure.
What is TG4322R?
TG4322R is a 60A, 3-pole, 4-wire fusible safety switch with a NEMA 3R outdoor enclosure.
What is TG4323?
TG4323 is a 100A, 3-pole, 4-wire fusible safety switch with a NEMA 1 indoor enclosure.
What is TG4323R?
TG4323R is a 100A, 3-pole, 4-wire fusible safety switch with a NEMA 3R outdoor enclosure.
What is TG4324?
TG4324 is a 200A, 3-pole, 4-wire fusible safety switch with a NEMA 1 indoor enclosure.
What is TG4324R?
TG4324R is a 200A, 3-pole, 4-wire fusible safety switch with a NEMA 3R outdoor enclosure.
Are the switches UL Listed?
Yes. The supplied ABB specifications identify the listed models as both UL Listed and cUL Listed.
Where can I review the ABB specifications?
The ABB General Duty Safety Switch Specifications PDF is linked in the Product Documents section above.
Important Ordering & Installation Notes
- Product: General Duty Safety Switches.
- TG3221R: 30A | 2 Pole | NEMA 3R.
- TG4321: 30A | 3 Pole | NEMA 1.
- TG4321R: 30A | 3 Pole | NEMA 3R.
- TG4322: 60A | 3 Pole | NEMA 1.
- TG4322R: 60A | 3 Pole | NEMA 3R.
- TG4323: 100A | 3 Pole | NEMA 1.
- TG4323R: 100A | 3 Pole | NEMA 3R.
- TG4324: 200A | 3 Pole | NEMA 1.
- TG4324R: 200A | 3 Pole | NEMA 3R.
- Category: ABB General Duty.
- Fusing: Fusible.
- Voltage rating: 240V AC.
- Indoor enclosure: NEMA 1.
- Outdoor enclosure: NEMA 3R.
- GSA compliant.
- UL Listed and cUL Listed.
- Confirm fuse requirements separately.
- Verify conductor size, motor horsepower, and equipment requirements before ordering.
- Maintain NEMA 3R enclosure integrity for outdoor installations.
- De-energize equipment before installation or service.
- Installation should be performed by qualified electrical personnel.
- Follow current ABB instructions and applicable electrical codes.
