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Siemens JXD62B300 Molded Case Circuit Breaker
- 300A
- 2 Pole
- Unit Mount
Siemens
JXD62B300
Molded Case Circuit Breaker
Brand
Siemens
SKU
JXD62B300
Quantity
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Siemens JXD62B300 - 300A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Siemens JXD62B300 - 300A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JXD62B300 |
| Series | JXD6 |
| Amperage | 300A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron 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 | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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Siemens JXD62B300 - 300A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JXD62B300-R |
| Series | JXD6 |
| Amperage | 300A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron 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 | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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Description
Engineered for heavy-duty applications, the 300A Siemens JXD62B300 provides dependable power distribution for commercial and industrial facilities. The JD-frame unit mount design integrates into Siemens Sentron panelboards, switchboards, and motor control centers. Terminal lugs are not included. Featuring a thermal-magnetic trip unit with LI functions, it delivers a 35kAIC rating at 480VAC. The device is HACR rated and supports reverse feeding.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JXD62B300 |
| Series | JXD6 |
| Amperage | 300A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron 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 | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
8 answersWhat enclosures and equipment are compatible with the JXD62B300?
This JD frame breaker is designed for use in Siemens Sentron panelboards, switchboards, and motor control centers.
Are terminal lugs included with the JXD62B300?
No, the standard JXD62B300 catalog number does not include lugs. They must be ordered separately. The standard aluminum lug for this frame is the TA2J6500, which accepts 3/0 AWG to 500 kcmil copper or 4/0 AWG to 500 kcmil aluminum wire.
Can the JXD62B300 be reverse fed?
Yes. Because the JXD62B300 features a non-interchangeable thermal-magnetic trip unit without Line and Load terminal markings, it is suitable for reverse-feed applications.
What is the magnetic trip range for this 300A breaker?
The JXD62B300 features a fixed thermal and adjustable magnetic trip unit. The instantaneous magnetic trip can be adjusted from 1250A to 2500A to accommodate different inrush currents.
Can this breaker replace an older I-T-E JXD62B300?
Yes. Siemens acquired I-T-E and continued the Sentron series. The Siemens JXD62B300 is a direct, drop-in replacement for the legacy I-T-E JXD62B300.
Is the JXD62B300 rated for DC voltage applications?
Yes, this breaker is rated for up to 250VDC with a 30kA interrupting capacity, making it suitable for various direct current systems.
How does the JXD62B300 mount into a panel?
It is a unit-mount, bolt-on circuit breaker. It bolts directly to the panelboard bus or mounting pan rather than snapping or plugging in.
What is the difference between the JD62B300 and the JXD62B300?
The X in the JXD62B300 catalog number indicates that it has a non-interchangeable trip unit assembled at the factory. The standard JD62B300 has an interchangeable trip unit.
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