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Siemens LMXD63B600 Molded Case Circuit Breaker
- 600A
- 3 Pole
- Unit Mount
Siemens
LMXD63B600
Molded Case Circuit Breaker
Brand
Siemens
SKU
LMXD63B600
Quantity
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Siemens LMXD63B600 - 600A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens LMXD63B600 - 600A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | LMXD63B600 |
| Series | LMXD6 |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| 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, Mechanical Interlock |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism, HACR Rated |
Quantity
Siemens LMXD63B600 - 600A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | LMXD6 |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| 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, Mechanical Interlock |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism, HACR Rated |
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Description
Built for industrial applications, the Siemens LMXD63B600 is a 600A, 3-pole MCCB from the Sentron LMD frame family. It delivers reliable long-time and instantaneous (LI) protection for heavy-duty electrical systems. This unit mount breaker installs into Siemens Sentron panelboards and switchboards. It is often replaced by the newer 3VA55 series via retrofit. Rated at 50kAIC at 480VAC, it features a non-interchangeable trip unit with adjustable magnetic settings. Lugs are not included.Specifications
| Brand | Siemens |
|---|---|
| Part Number | LMXD63B600 |
| Series | LMXD6 |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| 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, Mechanical Interlock |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism, HACR Rated |
Product FAQs
7 answersWhat is the difference between the Siemens LMD63B600 and the LMXD63B600?
The primary difference is the trip unit design. The LMXD63B600 features a non-interchangeable trip unit, whereas the LMD63B600 has an interchangeable trip unit. Both share the same LMD frame size and 50kAIC at 480V interrupting rating.
Does the LMXD63B600 come with lugs installed?
No, the LMXD63B600 is typically supplied without lugs. You will need to source compatible LMD frame lugs separately, such as the TA2K500 or TA3K500, depending on your specific wire size and conductor count requirements.
Can the LMXD63B600 be reverse fed?
Yes. This thermal magnetic circuit breaker features a trip-free mechanism and is suitable for reverse feed applications.
What does Adjustable Magnetic mean for the LMXD63B600 trip unit?
While the thermal overload protection is fixed at 600 amps, the adjustable magnetic feature allows you to tune the instantaneous short-circuit trip threshold. This is useful for coordinating with downstream breakers or accommodating high motor inrush currents.
What equipment is the LMXD63B600 designed to fit?
This unit mount breaker is designed for installation in Siemens Sentron panelboards, switchboards, and individual enclosures that accept LMD frame breakers.
What is the modern replacement for the LMXD63B600?
If you are upgrading your system, the LMXD63B600 is often replaced by the newer Siemens 3VA55 series molded case circuit breakers via a retrofit kit.
Is the LMXD63B600 suitable for HVAC applications?
Yes, this breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment.
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