Eaton / Cutler-Hammer CL120 Miniature Circuit Breaker
- 20A
- 1 Pole
- Plug-On
Quantity
Eaton / Cutler-Hammer CL120 - 20A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for overcurrent protection, the Eaton CL120 is a miniature circuit breaker with a 20A rating and one pole. It operates at 120/240VAC and has an interrupting rating of 10kA at 120/240VAC. This CL series breaker occupies one panel space. It accepts copper and aluminum conductors, with a minimum wire size of 14 AWG and a maximum wire size of 4 AWG.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | CL120 |
| Series | CL |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | CHQ |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Square D Homeline Loadcenters, GE Type THQ Loadcenters, Crouse-Hinds Type MP Loadcenters, Thomas and Betts Type TB Loadcenters, Murray Type MP Loadcenters, Siemens Type QP Loadcenters |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| 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 | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersHow should I use the Eaton CL120's 20A rating when selecting circuit protection?
The 20A rating is the current rating used to select this breaker for overcurrent protection. Coordinate that rating with the circuit's load requirements and conductor ampacity.
How does the Eaton CL120's interrupting rating affect selection?
The interrupting rating is 10kA at 120/240VAC. Select it where the available fault current does not exceed that rating, and check the circuit voltage against the breaker's 120/240VAC rating.
What does the thermal-magnetic trip do?
The thermal-magnetic trip combines long-time and instantaneous overcurrent protection. The long-time function responds to sustained overloads, while the instantaneous function responds rapidly to high fault current.
What conductors can I terminate on this breaker?
The termination accepts copper or aluminum conductors from 14 AWG through 4 AWG. Choose a conductor within that range whose ampacity meets the circuit requirements, and use installation practices appropriate to its material.
How is this breaker mounted and connected?
This breaker uses plug-on mounting and a plug-in terminal connection. Plan installation around that connection method rather than a bolted breaker connection.
What does the single-pole arrangement mean for circuit selection?
This is a single-pole breaker with a single circuit arrangement for single-phase use. Select it when the circuit calls for one protected pole; a neutral connection to the breaker is not applicable.
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