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Siemens HJD63B300 Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Siemens
HJD63B300
Molded Case Circuit Breaker
Brand
Siemens
SKU
HJD63B300
Quantity
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Siemens HJD63B300 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HJD63B300 - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HJD63B300 |
| Series | HJD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 35kA @ 500VDC |
| Frame Type | HJD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, SB Switchboards, Motor Control Centers, Legacy Sentron Panelboards |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu), 4/0 AWG - 500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG (Cu), 4/0 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (TA2J6500) - Order Separately |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
Quantity
Siemens HJD63B300 - 300A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HJD63B300-R |
| Series | HJD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 35kA @ 500VDC |
| Frame Type | HJD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, SB Switchboards, Motor Control Centers, Legacy Sentron Panelboards |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu), 4/0 AWG - 500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG (Cu), 4/0 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (TA2J6500) - Order Separately |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
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Description
Engineered for heavy-duty environments, the Siemens HJD63B300 delivers 300A of reliable overcurrent protection. This Sentron molded case circuit breaker safeguards commercial distribution systems. This unit mount breaker installs into Siemens P4 and P5 panelboards, SB switchboards, and motor control centers. It also fits legacy Sentron enclosures. Rated for 65kAIC at 480VAC, the JD frame breaker features an adjustable magnetic trip. TA2J6500 lugs must be ordered separately.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HJD63B300 |
| Series | HJD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 35kA @ 500VDC |
| Frame Type | HJD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, SB Switchboards, Motor Control Centers, Legacy Sentron Panelboards |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu), 4/0 AWG - 500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG (Cu), 4/0 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Lugs (TA2J6500) - Order Separately |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit |
Product FAQs
6 answersWhich Siemens panelboards and switchboards are compatible with the HJD63B300?
This JD frame breaker is designed for use in Siemens P4 and P5 panelboards, SB switchboards, motor control centers, and legacy Sentron panelboards.
What is the part number for the standard replacement lugs on the HJD63B300?
The standard line and load lugs for this breaker are part number TA2J6500. They accept 3/0 AWG to 500 kcmil copper or 4/0 AWG to 500 kcmil aluminum conductors.
What is the difference between the JD63B300 and the HJD63B300?
The H in the HJD63B300 part number indicates a higher interrupting rating. While the standard JD63B300 is rated for 35kA at 480VAC, the HJD63B300 is rated for 65kA at 480VAC. Both share the same physical dimensions and mounting.
Can the trip settings on the HJD63B300 be adjusted?
Yes, this thermal magnetic breaker features an adjustable magnetic trip for instantaneous short-circuit protection. The thermal trip for long-time overload protection is fixed.
Is the HJD63B300 a direct replacement for older Sentron JD frames?
Yes, it is part of the Sentron JD frame family and can replace older breakers with the same frame size and specifications.
Does the HJD63B300 have an interchangeable trip unit?
Yes, it features an interchangeable thermal magnetic trip unit. This allows you to swap the trip unit without replacing the entire breaker frame if your amperage requirements change.
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