Siemens / General Switch GA120 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
Siemens / General Switch GA120 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built specifically for General Switch residential load centers, the GA120 is a legacy 20A, 1-pole molded case circuit breaker. It provides dependable thermal-magnetic protection for standard branch circuits. The plug-on design ensures a seamless fit into existing panels without requiring modification. For modern replacements, this hard-to-find breaker is officially substituted by the UBIGA120. Delivering a 10kAIC interrupting rating at 120/240VAC, this unit is both HACR and SWD rated.Specifications
| Brand | Siemens / General Switch |
|---|---|
| Part Number | GA120 |
| Series | GA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | GA |
|---|---|
| Terminal Type | Lugs |
| For Use With | General Switch Load Centers |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Standards | UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40°C |
Product FAQs
4 answersWhich electrical panels accept the GA120 circuit breaker?
The GA120 is built specifically for legacy General Switch residential load centers. Its plug-on design allows it to fit directly into existing General Switch panels without requiring modification.
Are there modern replacements available for the General Switch GA120?
Yes. Because General Switch is a discontinued brand, original GA120 breakers are considered legacy components. For a modern replacement, the UBIGA120 is an officially recognized substitute that fits the same load centers.
What wire sizes are compatible with the GA120 terminals?
The feed-thru lug connections on the GA120 are rated for wire gauges between 14 AWG and 4 AWG. Ensure proper stripping and seating of the conductors during installation.
What type of protection does the GA120 provide?
This breaker uses a fixed thermal-magnetic trip unit with long-time and instantaneous (LI) functions. The thermal element responds to prolonged overloads, while the magnetic element trips immediately during short-circuit events.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- DHDave-Dianna H.ReviewingSiemens / General Switch GA130 - 30A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/12/23Great!
Great!