Siemens HNXD63B120 Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Quantity
Siemens HNXD63B120 - 1200A 3 Pole Molded Case Circuit Breaker
New
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 |
|---|---|
| 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 |
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.
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