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Siemens JXD22B300 Molded Case Circuit Breaker
- 300A
- 2 Pole
- Bolt-On
Siemens
JXD22B300
Molded Case Circuit Breaker
Brand
Siemens
SKU
JXD22B300
Quantity
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Siemens JXD22B300 - 300A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens JXD22B300 - 300A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JXD22B300 |
| Series | JXD2 |
| Amperage | 300A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 30kA @ 250VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, P4 Panelboards, P5 Panelboards, SB Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| 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 Not Included (Requires TA2J6500) |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 2-Pole in 3-Pole Housing |
Sold out
Quantity
Siemens JXD22B300 - 300A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JXD22B300-R |
| Series | JXD2 |
| Amperage | 300A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 30kA @ 250VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, P4 Panelboards, P5 Panelboards, SB Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| 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 Not Included (Requires TA2J6500) |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 2-Pole in 3-Pole Housing |
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Description
Engineered for demanding commercial and industrial applications, the Siemens JXD22B300 is a 2-pole, 300A molded case circuit breaker from the proven Sentron family. It features a rugged JD frame design and provides dependable long-time and instantaneous (LI) trip functions to safeguard critical electrical infrastructure. This bolt-on breaker installs into Siemens P4 and P5 panelboards, SB switchboards, and motor control centers. Rated at 65kAIC at 240VAC, it includes an adjustable magnetic trip.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JXD22B300 |
| Series | JXD2 |
| Amperage | 300A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 30kA @ 250VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, P4 Panelboards, P5 Panelboards, SB Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| 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 Not Included (Requires TA2J6500) |
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 2-Pole in 3-Pole Housing |
Product FAQs
6 answersWhat type of mounting does the JXD22B300 require?
This is a bolt-on circuit breaker designed for direct installation into Siemens Sentron, P4, and P5 panelboards, as well as SB switchboards and Motor Control Centers. It does not use a plug-in or DIN rail mounting system.
What is the adjustable magnetic trip range for this 300A breaker?
The JXD22B300 features a fixed thermal and adjustable magnetic trip unit, with the instantaneous magnetic trip range adjustable from 1250A to 2500A.
Do I need to purchase separate lugs for the JXD22B300?
The JXD22B300 comes standard with line and load lugs installed, which accept 3/0 AWG to 500 kcmil copper or aluminum conductors.
Can the Siemens JXD22B300 replace older ITE circuit breakers?
Yes, this breaker is a direct replacement for legacy ITE JD frame molded case circuit breakers with matching specifications.
Does this breaker feature an interchangeable trip unit?
No, the JXD22B300 is an assembled circuit breaker with a non-interchangeable thermal magnetic trip unit.
How does the LI trip function operate on this JD frame breaker?
The LI designation indicates Long Time and Instantaneous trip functions. The fixed thermal element provides Long Time protection against sustained overloads, while the adjustable magnetic element provides Instantaneous protection against short circuits.
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