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Siemens JD63B400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Siemens
JD63B400
Molded Case Circuit Breaker
Brand
Siemens
SKU
JD63B400
Quantity
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Siemens JD63B400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens JD63B400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JD63B400 |
| Series | JD6 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (1-2) 3/0 AWG - 500 kcmil (Cu) or (1-2) 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, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs (TA2J6500) Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit |
Quantity
Siemens JD63B400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | JD6 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (1-2) 3/0 AWG - 500 kcmil (Cu) or (1-2) 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, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs (TA2J6500) Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit |
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Description
Providing high-capacity overcurrent defense, the Siemens JD63B400 is a 3-pole, 400A molded case circuit breaker from the proven Sentron JD frame series. It utilizes an interchangeable thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. This unit mount breaker is engineered for compatibility with Siemens Sentron panelboards, switchboards, and motor control centers. It includes TA2J6500 line and load lugs to accommodate 3/0 AWG to 500 kcmil conductors.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JD63B400 |
| Series | JD6 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (1-2) 3/0 AWG - 500 kcmil (Cu) or (1-2) 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, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Line and Load Lugs (TA2J6500) Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit |
Product FAQs
7 answersWhat specific lugs come standard with this breaker?
It includes TA2J6500 mechanical lugs on both the line and load sides. These are factory installed and accept copper or aluminum conductors.
Is the trip unit on this JD frame breaker interchangeable?
Yes, it features an interchangeable thermal magnetic trip unit. This allows you to replace or upgrade the trip mechanism without needing to swap out the entire breaker frame.
What is the magnetic trip setting range for this 400A breaker?
The adjustable magnetic trip can be set between 2000A and 4000A for instantaneous short circuit protection. The thermal long time trip setting is fixed.
Can I add auxiliary contacts or a shunt trip to this breaker?
Yes, the JD6 frame supports various field installable internal accessories, including shunt trips, auxiliary switches, alarm switches, and undervoltage releases.
What is an alternative part number if the JD63B400 is unavailable?
The JXD63B400 is a direct alternative within the Sentron series. It shares the exact same frame and electrical ratings, though you should verify your enclosure accepts JXD profiles.
Can this breaker be used for HVAC applications?
Yes, it is HACR rated, meaning it is certified for use in heating, air conditioning, and refrigeration equipment branch circuits.
Does this breaker provide ground fault protection?
No, this is a standard thermal magnetic breaker with long time and instantaneous trip functions. It does not provide integral ground fault equipment protection.
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