Siemens HNXD63B120 Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Quantity
Siemens HNXD63B120 - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Siemens HNXD63B120 - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HNXD63B120 |
| Series | HNXD |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC, 50kA @ 250VDC, 50kA @ 500VDC |
| Frame Type | ND |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, P4, P5 Panelboards, 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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Quantity
Siemens HNXD63B120 - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | HNXD |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC, 50kA @ 250VDC, 50kA @ 500VDC |
| Frame Type | ND |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, P4, P5 Panelboards, 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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Description
Engineered for heavy-duty industrial applications, the HNXD63B120 delivers robust long-time and instantaneous (LI) protection. This 1200A, 3-pole unit mount MCCB installs into Siemens Sentron panelboards, P4/P5 panels, and switchboards. Featuring a non-interchangeable thermal-magnetic trip unit and a 65kAIC rating at 480VAC, it ensures dependable performance for commercial distribution systems. Lugs are not included, allowing for customized terminal configurations.Specifications
| Brand | Siemens |
|---|---|
| Series | HNXD |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC, 50kA @ 250VDC, 50kA @ 500VDC |
| Frame Type | ND |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, P4, P5 Panelboards, 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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhich Siemens panelboards can accommodate the HNXD63B120 circuit breaker?
This 1200A unit mount breaker is designed for installation in Siemens Sentron panelboards, P4 and P5 panelboards, switchboards, and Motor Control Centers.
Are line and load lugs included from the factory with the HNXD63B120?
No. This unit is normally shipped without lugs to allow for customized terminal configurations. You must order the appropriate ND-frame lug kits separately, such as the 3TA4N8500 or 3TA3N8750, depending on your specific wire size and material requirements.
Can the HNXD63B120 replace older ITE or Siemens HND6 circuit breakers?
Yes. The HNXD63B120 is a direct physical replacement for the legacy ITE and Siemens HND63B120. The primary difference is that the HNXD features a non-interchangeable trip unit to comply with modern UL 489 requirements for reverse-feed applications, while maintaining the same physical dimensions and high interrupting capacity.
What does the H in the HNXD prefix signify for this breaker?
The H indicates that this is a High Interrupting Capacity model. It delivers a 65kAIC rating at 480VAC, which provides higher fault current protection than standard NXD frame breakers that are typically rated at 50kAIC at 480VAC.
How does the trip adjustability work on the HNXD63B120?
This breaker features a thermal-magnetic trip unit with a fixed thermal element for long-time overload protection and an adjustable magnetic element. The adjustable magnetic dial allows you to set the instantaneous short-circuit trip threshold to coordinate with downstream devices and prevent nuisance tripping during high inrush events like motor starting.
Is the HNXD63B120 footprint interchangeable with standard NXD breakers?
Yes. It shares the exact same physical footprint (9 inches wide, 16 inches high, 6 inches deep) and mounting hardware as standard NXD and older ND6 frames, making it an easy drop-in upgrade when a higher fault current rating is required by your electrical system.
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.