Federal Pacific NN633090 Molded Case Circuit Breaker
- 900A
- 3 Pole
- Bolt-On
Quantity
Federal Pacific NN633090 - 900A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built to support demanding commercial loads, the Federal Pacific NN633090 is a 3-pole, 900A molded case circuit breaker. It utilizes thermal-magnetic technology to deliver essential overcurrent protection. Designed for legacy infrastructure, this N-frame breaker mounts into Federal Pacific switchgear and CDP panelboards. It serves as an exact replacement, allowing contractors to restore power safely. Rated for 30kA at 480VAC, it features a non-interchangeable trip unit.Specifications
| Brand | Federal Pacific |
|---|---|
| Part Number | NN633090 |
| Series | NN |
| Amperage | 900A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 480VAC |
| Phase | 3 |
| AIC Rating | 30kA @ 480VAC |
| Frame Type | NN |
|---|---|
| Terminal Type | Lugs |
| For Use With | Federal Pacific Switchgear, Federal Pacific CDP Panelboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lug Kit |
|---|---|
| Accessories | Lugs Not Included |
| Standards | UL 489 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
6 answersWhat enclosures are compatible with the NN633090 circuit breaker?
This N-frame breaker is engineered specifically for legacy Federal Pacific switchgear and Federal Pacific CDP panelboards. It is not interchangeable with standard Stab-Lok residential panels.
How is the NN633090 secured within the panel?
It utilizes a bolt-on connection type to mount directly to the busbars in Federal Pacific CDP panelboards and switchgear. Proper torque on the bolt-on terminals is required to prevent loose connections and overheating.
Are mounting lugs included with the NN633090 breaker?
Lugs are typically not included with the base breaker. If you are replacing an existing unit, you may be able to reuse the original lugs, or you will need to source a compatible lug kit separately for the load side connections.
What adjustability does the NN633090 trip unit offer?
The thermal-magnetic trip unit features a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Is the Federal Pacific NN633090 still in active production?
No. Federal Pacific Electric is no longer in business, making original NN-frame breakers obsolete. Exact replacements are typically sourced through specialized distributors carrying surplus inventory to maintain legacy infrastructure.
Can I substitute a different brand of 900A breaker in my Federal Pacific equipment?
No. Circuit breakers must be specifically listed for the panelboard. You must use an original FPE NN-frame breaker or a classified aftermarket replacement explicitly approved for Federal Pacific CDP panelboards to maintain safety and code compliance.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.