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Siemens JXD63B300H Molded Case Circuit Breaker
- 300A
- 3 Pole
- Unit Mount
Siemens
JXD63B300H
Molded Case Circuit Breaker
Brand
Siemens
SKU
JXD63B300H
Quantity
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Siemens JXD63B300H - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens JXD63B300H - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | JXD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P4, P5, S4, S5), Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG-500 kcmil (Cu), 4/0 AWG-500 kcmil (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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Quantity
Siemens JXD63B300H - 300A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | JXD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P4, P5, S4, S5), Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG-500 kcmil (Cu), 4/0 AWG-500 kcmil (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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Reverse Feed, Non-Interchangeable Trip |
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Description
The JXD63B300H is a 3-pole, 300A molded case circuit breaker from Siemens' Sentron series. Built for commercial and industrial power distribution, this JD frame breaker provides robust long-time and instantaneous (LI) protection for demanding electrical systems. It installs into Siemens P4, P5, S4, and S5 panelboards, along with compatible switchboards. Rated for 35kAIC at 480VAC, this breaker features a 100% continuous current rating, allowing you to utilize the full 300A capacity.Specifications
| Brand | Siemens |
|---|---|
| Series | JXD6 |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | JXD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards (Type P4, P5, S4, S5), Switchboards, Motor Control Centers |
| Wire Gauge | 3/0 AWG-500 kcmil (Cu), 4/0 AWG-500 kcmil (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, Lug Kits |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Reverse Feed, Non-Interchangeable Trip |
Product FAQs
6 answersWhat types of enclosures and panels are compatible with the JXD63B300H?
This breaker is designed for use in Siemens Sentron panelboards, specifically Type P4, P5, S4, and S5. It is also compatible with Siemens switchboards and motor control centers.
What is the magnetic trip adjustment range for this 300A breaker?
The JXD63B300H features a fixed thermal and adjustable magnetic trip unit. The instantaneous magnetic trip can be adjusted from 1250A to 2500A.
Can the JXD63B300H be reverse fed?
Yes, this molded case circuit breaker is reverse feed capable, allowing for flexibility in wiring configurations.
What wire sizes are accepted by the standard lugs on this breaker?
The standard lugs accept 3/0 AWG to 500 kcmil copper wire, or 4/0 AWG to 500 kcmil aluminum wire.
Is the trip unit on the JXD63B300H interchangeable?
No, this breaker features a non-interchangeable thermal magnetic trip unit.
Is this breaker HACR rated for HVAC applications?
Yes, the JXD63B300H is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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