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Siemens JXD23B400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Siemens
JXD23B400
Molded Case Circuit Breaker
Brand
Siemens
SKU
JXD23B400
Quantity
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Siemens JXD23B400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Siemens JXD23B400 - 400A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JXD23B400 |
| Series | JXD2 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| 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 |
Quantity
Siemens JXD23B400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | JXD23B400-R |
| Series | JXD2 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| 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 |
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Description
Part of the Sentron family, the JXD23B400 provides reliable thermal-magnetic protection for commercial and industrial distribution systems. This 3-pole, 400A breaker installs into Siemens P4, P5, and SB switchboards. It features a non-interchangeable trip unit with fixed thermal and adjustable magnetic settings. Rated for 65kA at 240VAC, it requires TA2J6500 lugs for proper termination. This model replaces the legacy JD63B400.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JXD23B400-R |
| Series | JXD2 |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 250VDC |
| Phase | 3 |
| 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 |
Product FAQs
6 answersDoes the JXD23B400 come with line and load lugs installed?
No, this Sentron JD-frame breaker is typically supplied without lugs. You will need to source and install a compatible lug kit, such as the TA2J6500, which accepts 3/0 AWG to 500 kcmil copper or aluminum conductors.
What hardware is required to mount this breaker into a Siemens P4 or P5 panelboard?
Installing the JXD23B400 into P4 or P5 power panelboards requires a specific JD-frame connecting strap kit, such as the SJ1 single-mount kit, to safely attach the breaker terminals to the panel's distribution bus.
Is the JXD23B400 suitable for reverse-feed applications?
Yes. Because it is equipped with a non-interchangeable thermal-magnetic trip unit, this breaker can be reverse fed safely without line and load orientation restrictions.
Can the Siemens JXD23B400 replace older I-T-E branded JD-frame breakers?
Yes, this breaker serves as a direct replacement for legacy I-T-E and Gould JXD23B400 models, sharing the exact same physical footprint and mounting configuration.
How do you adjust the trip unit on the JXD23B400?
The breaker features fixed thermal protection for sustained overloads, but it includes an adjustable magnetic dial on the faceplate to set the instantaneous short-circuit trip response based on system coordination requirements.
How is this breaker applied in a direct current (DC) distribution system?
The JXD23B400 is rated for up to 250VDC with a 30kA interrupting capacity. When applied in DC environments, installers must wire the active poles according to Siemens DC wiring schematics to ensure proper fault clearing.
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Customers rate this product 5.0 out of 5 based on 1 review.
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1 review
- CWCorey W.Rated 5 out of 5 stars8/28/19Competitive pricing
Fast shipping, and competitive pricing! I’ll buy from here again!