Siemens NNX3B120 Circuit Breaker
- 1200
- 3 Pole
- Bolt-On
Quantity
Siemens NNX3B120 3 Pole Circuit Breaker
Re-Certified
Quantity
Quantity
Siemens NNX3B120 3 Pole Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | NNX3B120-R |
| Series | VL |
| Amperage | 1200 A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600V |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 35kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P4 Panelboards, Siemens P5 Panelboards, Siemens Switchboards, Motor Control Centers |
| 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, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Reverse Feed |
Quantity
Siemens NNX3B120 3 Pole Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | VL |
| Amperage | 1200 A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600V |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 35kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P4 Panelboards, Siemens P5 Panelboards, Siemens Switchboards, Motor Control Centers |
| 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, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Reverse Feed |
Description
Siemens NNX3B120 3 Pole Circuit Breaker
The Siemens NNX3B120 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 125 Amps and a voltage rating of 600V. It has an interrupting rating of 35kAIC at 480V. The NNX3B120 has a bolt-on connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Siemens |
|---|---|
| Part Number | NNX3B120-R |
| Series | VL |
| Amperage | 1200 A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600V |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 35kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P4 Panelboards, Siemens P5 Panelboards, Siemens Switchboards, Motor Control Centers |
| 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, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
7 answersWhich panelboards and switchboards are compatible with the Siemens NNX3B120?
This 1200A VL Series breaker is designed for installation in Siemens P4 and P5 panelboards, as well as Siemens switchboards and motor control centers.
What frame size does the Siemens NNX3B120 use?
The NNX3B120 is built on the Siemens NG frame within the VL Series of molded case circuit breakers.
Is the Siemens NNX3B120 suitable for reverse-feed applications?
Yes, this molded case circuit breaker is suitable for reverse-fed applications.
Does the NNX3B120 carry an HACR rating?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
What are the physical dimensions of the Siemens NNX3B120 breaker?
This NG frame circuit breaker measures approximately 16 inches high, 9 inches wide, and 6.2 inches deep.
How is the trip unit configured on the NNX3B120?
It features a non-interchangeable thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings, providing Long-Time and Instantaneous (LI) protection.
What safety certifications does the NNX3B120 hold?
This breaker is both UL Listed and IEC Rated, ensuring compliance with major global electrical safety standards.
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.