Siemens HMXD63B800 Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Quantity
Siemens HMXD63B800 - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HMXD63B800 - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HMXD63B800-R |
| Series | HMXD6 |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC, 50kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Switchboards, Panelboards, 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, Motor Operator, Rotary Handle, Lug Kits |
|---|---|
| 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 | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Quantity
Siemens HMXD63B800 - 800A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | HMXD6 |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC, 50kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Switchboards, Panelboards, 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, Motor Operator, Rotary Handle, Lug Kits |
|---|---|
| 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 | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Description
Designed for heavy-duty power distribution, the Siemens HMXD63B800 is a 3-pole, 800A molded case circuit breaker. As part of the Sentron Series, it utilizes a rugged MD frame to handle demanding electrical loads. This bolt-on MCCB is engineered to mount into compatible Siemens switchboards, panelboards, and motor control centers.Specifications
| Brand | Siemens |
|---|---|
| Series | HMXD6 |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 50kA @ 600VAC, 50kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Switchboards, Panelboards, 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, Motor Operator, Rotary Handle, Lug Kits |
|---|---|
| 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 | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
8 answersWhat is the difference between the Siemens HMXD63B800 and the MXD63B800?
The HMXD63B800 is the high-interrupting version of the standard MXD63B800. While the standard MXD63B800 is rated for 50 kAIC at 480VAC, the HMXD63B800 provides an upgraded 65 kAIC rating at 480VAC. Both breakers share the same Sentron MD frame dimensions and non-interchangeable trip units.
Are lugs included with the HMXD63B800 circuit breaker?
No, this breaker is supplied from the factory without lugs installed. You must purchase line and load lug kits separately based on your specific wire size and conductor material.
What lug kits are compatible with this Sentron MD frame breaker?
Common lug kits include the TA3K500, which has an aluminum body and accepts two 1 AWG to 500 kcmil conductors per phase. For copper-only applications, the TC2K500 is available. If larger conductors are required, the 3TA2N8750 kit accommodates 500 to 750 kcmil wire.
Can I change or upgrade the trip unit on the HMXD63B800?
No, the HMXD6 frame features a completely non-interchangeable thermal-magnetic trip unit. If your installation requires an interchangeable trip mechanism in the same physical footprint, you must specify an HMD6 frame breaker instead.
Are the trip functions on this breaker adjustable?
Yes, it features a thermal-magnetic (LI) trip unit with a fixed thermal limit for long-time overload protection, and an adjustable magnetic trip dial for instantaneous short-circuit protection.
What enclosures or systems is the HMXD63B800 designed to mount in?
This unit-mount, bolt-on circuit breaker is engineered for installation in compatible Siemens switchboards, panelboards, and motor control centers designed to accept Sentron MD frame devices.
Is there a 100% continuous rated version of the HMXD63B800 available?
Yes, Siemens offers a 100% continuous-rated version under catalog number HMXD63B800H. Note that utilizing the 100% continuous rating requires the use of 90C copper wire sized at 75C ampacity and specific approved lug kits.
What safety standards does the HMXD63B800 meet for industrial distribution?
This molded case circuit breaker is UL 489 Listed, CSA C22.2 No. 5 certified, and conforms to IEC 60947-2 standards. It is also HACR rated for use in heating, air conditioning, and refrigeration applications.
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