Description
General Duty Non-Fusible Safety Switch
General Duty Non-Fusible Safety Switches are designed for compatible electrical disconnect applications where a simple means of equipment isolation is required without integral fuse protection. This product family includes 30A, 60A, 100A, and 200A three-pole configurations in both indoor NEMA 1 and outdoor NEMA 3R enclosures.
These switches are intended for compatible commercial, residential, and light-industrial applications. Because they are non-fusible, required overcurrent protection must be provided elsewhere in the electrical system.
Product Highlights
- General Duty non-fusible safety switch family
- 3-pole configurations
- 30A, 60A, 100A, and 200A options
- NEMA 1 indoor models
- NEMA 3R outdoor models
- Non-fusible disconnecting means
- Suitable for compatible equipment isolation applications
- Eight catalog-number options
- Verify voltage, conductor, enclosure, and application requirements before ordering
Technical Specifications
| Product Type | General Duty Non-Fusible Safety Switch |
|---|---|
| Switch Type | Non-Fusible |
| Number of Poles | 3 |
| Available Ampere Ratings | 30A, 60A, 100A, 200A |
| Available Enclosure Types | NEMA 1 Indoor, NEMA 3R Outdoor |
| Primary Function | Electrical Equipment Disconnect / Isolation |
| Overcurrent Protection | Not Integral - Provided Separately |
| Available Catalog Numbers | TGN3321, TGN3321R, TGN3322, TGN3322R, TGN3323, TGN3323R, TGN3324, TGN3324R |
Construction Details
These switches use a three-pole non-fusible configuration and are available in either indoor NEMA 1 or outdoor NEMA 3R enclosure styles.
The non-fusible design provides disconnecting and isolation functionality without integral fuse protection. The complete electrical system must therefore include properly rated overcurrent protection as required by the application.
The correct model should be selected according to ampere rating, enclosure type, electrical system requirements, conductor size, and equipment compatibility.
Available Safety Switches
Catalog Number & Configuration
| Catalog Number | Ampere Rating | Poles | Enclosure |
|---|---|---|---|
| TGN3321 | 30A | 3 | NEMA 1 |
| TGN3321R | 30A | 3 | NEMA 3R |
| TGN3322 | 60A | 3 | NEMA 1 |
| TGN3322R | 60A | 3 | NEMA 3R |
| TGN3323 | 100A | 3 | NEMA 1 |
| TGN3323R | 100A | 3 | NEMA 3R |
| TGN3324 | 200A | 3 | NEMA 1 |
| TGN3324R | 200A | 3 | NEMA 3R |
Selecting the Correct Safety Switch
30A Models
Select TGN3321 for the 30A indoor NEMA 1 configuration or TGN3321R for the corresponding outdoor NEMA 3R configuration.
60A Models
Select TGN3322 for the 60A indoor NEMA 1 configuration or TGN3322R for the corresponding outdoor NEMA 3R configuration.
100A Models
Select TGN3323 for the 100A indoor NEMA 1 configuration or TGN3323R for the corresponding outdoor NEMA 3R configuration.
200A Models
Select TGN3324 for the 200A indoor NEMA 1 configuration or TGN3324R for the corresponding outdoor NEMA 3R configuration.
Non-Fusible Design
These TGN safety switches are non-fusible. Their primary function is to provide a disconnecting means for compatible electrical equipment.
Since the switch does not contain fuses, required circuit overcurrent protection must be provided by a properly rated upstream circuit breaker, fuse, or other approved overcurrent protective device.
NEMA 1 vs. NEMA 3R
NEMA 1 Indoor
TGN3321, TGN3322, TGN3323, and TGN3324 are the indoor NEMA 1 configurations in this product family.
NEMA 3R Outdoor
TGN3321R, TGN3322R, TGN3323R, and TGN3324R are the outdoor NEMA 3R configurations.
Common Applications
Commercial & Residential
- Building electrical equipment
- HVAC disconnect applications
- Mechanical equipment
- Service and maintenance isolation
- Electrical distribution systems
Industrial & Equipment
- Motor disconnect applications
- Industrial machinery
- Equipment isolation
- Electrical control equipment
- Indoor and outdoor disconnect installations
Installation & Selection Considerations
- Confirm the required ampere rating before ordering.
- Verify that a 3-pole non-fusible safety switch is appropriate for the application.
- Select a NEMA 1 model for compatible indoor installations.
- Select a NEMA 3R model for compatible outdoor installations.
- Verify system voltage against the switch rating.
- Provide required overcurrent protection separately.
- Confirm conductor material and size requirements.
- Verify equipment and load compatibility.
- 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 Non-Fusible Safety Switch combined specifications for catalog-specific ampere ratings, enclosure types, dimensions, electrical ratings, conductor requirements, horsepower ratings, listings, and manufacturer product information.
Need Help Selecting a Safety Switch?
Our electrical and industrial product specialists can help review your ampere rating, pole count, system voltage, equipment load, conductor requirements, overcurrent protection, and indoor or outdoor enclosure needs before you order.
Frequently Asked Questions
Are these safety switches fusible?
No. These TGN-series models are non-fusible safety switches.
How many poles do these switches have?
All eight models listed here use a three-pole configuration.
What ampere ratings are available?
Available ratings are 30A, 60A, 100A, and 200A.
What is TGN3321?
TGN3321 is the 30A, 3-pole, NEMA 1 indoor configuration.
What is TGN3321R?
TGN3321R is the 30A, 3-pole, NEMA 3R outdoor configuration.
What is TGN3322?
TGN3322 is the 60A, 3-pole, NEMA 1 indoor configuration.
What is TGN3322R?
TGN3322R is the 60A, 3-pole, NEMA 3R outdoor configuration.
What is TGN3323?
TGN3323 is the 100A, 3-pole, NEMA 1 indoor configuration.
What is TGN3323R?
TGN3323R is the 100A, 3-pole, NEMA 3R outdoor configuration.
What is TGN3324?
TGN3324 is the 200A, 3-pole, NEMA 1 indoor configuration.
What is TGN3324R?
TGN3324R is the 200A, 3-pole, NEMA 3R outdoor configuration.
Does a non-fusible switch provide overcurrent protection?
No. Required overcurrent protection must be provided separately by the electrical system.
Where can I review the manufacturer specifications?
The ABB General Duty Non-Fusible Safety Switch Specifications PDF is linked in the Product Documents section above.
Important Ordering & Installation Notes
- Product: General Duty Non-Fusible Safety Switch.
- TGN3321: 30A | 3 Pole | NEMA 1.
- TGN3321R: 30A | 3 Pole | NEMA 3R.
- TGN3322: 60A | 3 Pole | NEMA 1.
- TGN3322R: 60A | 3 Pole | NEMA 3R.
- TGN3323: 100A | 3 Pole | NEMA 1.
- TGN3323R: 100A | 3 Pole | NEMA 3R.
- TGN3324: 200A | 3 Pole | NEMA 1.
- TGN3324R: 200A | 3 Pole | NEMA 3R.
- Switch type: Non-Fusible.
- Number of poles: 3.
- Indoor enclosure: NEMA 1.
- Outdoor enclosure: NEMA 3R.
- Required overcurrent protection must be provided separately.
- Confirm voltage, conductor, and equipment requirements before ordering.
- Maintain NEMA 3R enclosure integrity on outdoor models.
- De-energize equipment before installation or service.
- Installation should be performed by qualified electrical personnel.
- Follow current ABB instructions and applicable electrical codes.
