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Square D FDA14020-1 Molded Case Circuit Breaker
- 20A
- 1 Pole
- I-Line
Square D
FDA14020-1
Molded Case Circuit Breaker
Brand
Square D
SKU
FDA14020-1
Quantity
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Square D FDA14020-1 - 20A 1 Pole Molded Case Circuit Breaker
Re-Certified
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Description
Engineered for commercial facilities, the Square D FDA14020-1 1-pole, 20A MCCB delivers consistent thermal magnetic protection for critical electrical circuits. This F-frame device utilizes an I-Line mounting style to install into Square D I-Line panelboards. The "-1" suffix denotes an A-phase connection. It operates as a legacy replacement for older systems. Rated for 18 kAIC at 277VAC, it ensures effective fault clearing. It is HACR and SWD rated, and features a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | FDA14020-1-R |
| Series | FDA |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | I-Line |
| Voltage | 120VAC, 277VAC, 125VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 120VAC, 18kA @ 277VAC, 10kA @ 125VDC |
| Frame Type | FDA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included, Factory Phase Connection (Suffix -1) |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, SWD Rated |
Product FAQs
8 answersWhat panelboards are compatible with the FDA14020-1 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit standard QO, NQ, or NF series panels.
What does the "-1" suffix mean in the FDA14020-1 catalog number?
The "-1" indicates that this 1-pole breaker is factory configured for an A-phase connection on the I-Line bus. Other suffixes like "-3" or "-5" denote B-phase and C-phase connections.
How does this breaker mount into the panel?
It utilizes an I-Line style plug-in connection, which allows the breaker jaws to plug directly onto the panelboard bus stack. It is then secured with a mounting bracket and screw.
Can the FDA14020-1 be used in DC voltage applications?
Yes, this thermal magnetic breaker is rated for DC applications up to 125VDC, with an interrupting capacity of 10kAIC.
Is the Square D FDA frame still in active production?
The FDA is part of Square D's legacy F-Frame series. While the original F-Frame has been largely superseded by the newer PowerPact series, these breakers are still widely sourced for maintaining and servicing existing I-Line equipment.
Does this breaker feature a visual trip indicator?
Yes, it includes a Visi-Trip indicator that provides clear visual confirmation when the breaker has tripped due to an overcurrent or short circuit.
What wire sizes are accepted by the lugs on this breaker?
The factory lugs accept copper or aluminum wire ranging from 14 AWG to 1/0 AWG.
Are the trip settings adjustable on the FDA14020-1?
No, this breaker features fixed long time and instantaneous (LI) trip functions. The thermal magnetic trip unit cannot be adjusted in the field.
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