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Federal Pacific NE224040 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Federal Pacific
NE224040
Molded Case Circuit Breaker
Brand
Federal Pacific
SKU
NE224040
Quantity
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Federal Pacific NE224040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Federal Pacific NE224040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Federal Pacific |
|---|---|
| Part Number | NE224040 |
| Series | NE |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC |
| Frame Type | NE |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific NE Panelboards |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2, UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed |
Quantity
Federal Pacific NE224040 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Federal Pacific |
|---|---|
| Series | NE |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC |
| Frame Type | NE |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific NE Panelboards |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2, UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed |
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Description
Designed for aging infrastructure, this 40-amp, 2-pole molded case circuit breaker offers robust thermal-magnetic protection for commercial and industrial facilities. It acts as an exact replacement that installs into legacy Federal Pacific NE panelboards, ensuring a proper fit without panel modifications. Featuring a bolt-on mounting design and an 18kAIC rating at 240VAC, the NE224040 is HACR rated and reverse feed suitable for versatile, code-compliant power management.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NE224040 |
| Series | NE |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 18kA @ 240VAC |
| Frame Type | NE |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific NE Panelboards |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2, UL 489, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed |
Product FAQs
9 answersWhat panelboards are compatible with the NE224040 circuit breaker?
This breaker is designed exclusively for legacy Federal Pacific NE series panelboards. It features a bolt-on connection and will not fit in standard residential load centers or other commercial panel brands.
Is the NE224040 part of the Federal Pacific Stab-Lok residential line?
No. The NE224040 is a commercial-grade molded case circuit breaker with a bolt-on connection, whereas Stab-Lok refers to the brand's residential plug-on breakers. Because Federal Pacific is a legacy manufacturer, all existing panelboards should be regularly inspected by a licensed electrician for signs of thermal damage.
What does the LI trip function indicate on the NE224040?
The LI designation means the thermal-magnetic trip unit provides Long-Time (L) protection for sustained overloads and Instantaneous (I) protection for short circuits. Both the thermal and magnetic trip thresholds are fixed and cannot be adjusted in the field.
What wire sizes are accepted by the load lugs on this breaker?
The included lugs accept conductors ranging from 14 AWG to 2 AWG. When terminating aluminum wiring, always apply an approved oxide-inhibiting compound and torque the connections to the manufacturer specifications to prevent overheating.
Are there modern cross-reference replacements for the NE224040?
Because Federal Pacific is an obsolete brand, exact new-production replacements from the original manufacturer are no longer made. You must use a verified NE frame breaker to fit the existing panelboard bus without unauthorized modifications.
Can the NE224040 be used in reverse feed applications?
Yes, this breaker features a non-interchangeable trip unit and is suitable for reverse feed applications. If used as a back-fed main breaker, it must be properly secured with an approved hold-down kit in accordance with the National Electrical Code.
Can I install this Federal Pacific breaker in a Square D or Siemens panel?
No. Circuit breakers are engineered for specific busbar configurations. The NE224040 is only listed for Federal Pacific NE panelboards. Installing it in a different brand enclosure violates electrical codes and creates severe safety hazards.
How does the NE224040 connect to the panelboard bus?
It utilizes a bolt-on mounting style. The breaker must be mechanically bolted directly to the panelboard busbars. Ensure the panel is completely de-energized before installation and verify that all mounting hardware is properly torqued.
What does the 18kAIC rating mean for this Federal Pacific breaker?
The 18kAIC rating at 240VAC indicates the breaker can safely interrupt up to 18,000 amps of fault current. A licensed electrician or engineer must verify that the available fault current at your specific panel does not exceed this limit to ensure safe operation.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- KCKenny C.Verified BuyerReviewingFederal Pacific NE233100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/6/25Had what we needed
needed an old FP breaker SP had it in stock. saved us from downtime
- RVRobert V.ReviewingFederal Pacific NE233050 - 50A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars5/5/22Hard to Find
It was a relief to find this working Federal Pacific CB for our church’s Main HVAC supply panel- We are in Florida and it is hot now! services and social events are happening in the cool of the restored AC- thank God!!