Eaton / Cutler-Hammer QCF2020T Miniature Circuit Breaker
- 20A
- 2 Pole
- Panel Mount
Quantity
Eaton / Cutler-Hammer QCF2020T - 20A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for overcurrent protection, the Eaton QCF2020T miniature circuit breaker is rated 20A, 2-pole and 120/240VAC, with a 10kAIC interrupting rating at 120/240VAC. This Quicklag series breaker uses rail mounting and thermal magnetic tripping. Its trip function provides long-time and instantaneous protection. It has a single circuit arrangement, 1 phase and ring or spade lug terminals. The breaker has UL and CSA approvals.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | QCF2020T |
| Series | QCF |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Panel Mount |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | QCF |
|---|---|
| Terminal Type | Box Lugs |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
7 answersHow should I use the 20A rating when selecting the Eaton QCF2020T?
The 20A rating is the basis for coordinating this breaker with the circuit load and conductor ampacity. It is not an instantaneous trip threshold; the thermal-magnetic trip responds differently to sustained overloads and short circuits.
What electrical system rating should I check before selecting this breaker?
This breaker is rated 120/240VAC for single-phase applications. Check the circuit voltage and phase when selecting it for the intended electrical system.
When should I select the two-pole configuration?
Select this two-pole breaker when the circuit design calls for two poles of overcurrent protection. Pole count is a separate selection requirement from its 20A current rating.
How does the 10kAIC interrupting rating affect selection?
The interrupting rating is 10kAIC at 120/240VAC. Compare it with the available fault current at the installation point; the available fault current must not exceed the breaker’s interrupting rating.
How does the thermal-magnetic LI trip protect the circuit?
The thermal-magnetic trip combines long-time overload protection with instantaneous short-circuit protection. The thermal element allows a delayed response to sustained overloads, while the magnetic element responds rapidly to high fault current.
What conductor termination method should I plan for?
The terminal connection uses ring or spade lugs. Plan conductor preparation around lug terminations rather than direct bare-wire insertion.
What mounting method should I plan for during installation?
This breaker uses rail mounting. Plan the installation layout and mounting arrangement for a rail-mounted device.
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