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Siemens HLXD63B450 Molded Case Circuit Breaker
- 450A
- 3 Pole
- Unit Mount
Siemens
HLXD63B450
Molded Case Circuit Breaker
Brand
Siemens
SKU
HLXD63B450
Quantity
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Siemens HLXD63B450 - 450A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HLXD63B450 - 450A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | HLXD6 |
| Amperage | 450A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | LD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, Sentron 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, Lug Kits, Rotary Handle, Motor Operator |
|---|---|
| Accessories | Lugs Not Included |
| Standards | UL 489, IEC 60947-2, NEMA AB 1, CSA C22.2 No. 5 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Non-Interchangeable Trip, HACR Rated |
Quantity
Siemens HLXD63B450 - 450A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | HLXD6 |
| Amperage | 450A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | LD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, Sentron 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, Lug Kits, Rotary Handle, Motor Operator |
|---|---|
| Accessories | Lugs Not Included |
| Standards | UL 489, IEC 60947-2, NEMA AB 1, CSA C22.2 No. 5 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Non-Interchangeable Trip, HACR Rated |
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Description
Designed for heavy-duty power distribution, the Siemens HLXD63B450 offers 450 amps of reliable thermal-magnetic protection. It features a non-interchangeable trip unit with fixed thermal and adjustable magnetic settings, providing precise LI defense. This unit mount MCCB fits into Siemens P4 and P5 panelboards, Sentron switchboards, and standalone enclosures. It requires separate lug kits, giving installers flexibility for their specific wire requirements. It boasts a 65 kAIC rating at 480VAC.Specifications
| Brand | Siemens |
|---|---|
| Series | HLXD6 |
| Amperage | 450A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | LD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, Sentron 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, Lug Kits, Rotary Handle, Motor Operator |
|---|---|
| Accessories | Lugs Not Included |
| Standards | UL 489, IEC 60947-2, NEMA AB 1, CSA C22.2 No. 5 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Non-Interchangeable Trip, HACR Rated |
Product FAQs
7 answersWhat is the difference between the Siemens HLXD63B450 and the LXD63B450?
The HLXD63B450 features a high interrupting rating of 65kAIC at 480VAC, indicated by the H in the catalog number. The standard LXD63B450 has a lower interrupting rating of 35kAIC at 480VAC. Both breakers share the same LD frame footprint and mounting dimensions.
What does the X in the HLXD63B450 catalog number signify?
The X indicates that the breaker is factory assembled with a non-interchangeable trip unit. Frames without the X, such as the HLD63B450, are sold separately and require a field installed trip unit.
Which standalone enclosures are compatible with the HLXD63B450?
This LD frame circuit breaker mounts in Siemens Sentron enclosures, including the LD6N1 for NEMA 1 indoor use, the LD6N3R for NEMA 3R outdoor applications, and the LD6N12 for NEMA 12 industrial environments.
What panelboards are designed to accept the HLXD63B450?
This unit mount breaker is compatible with Siemens P4 and P5 panelboards, as well as Sentron switchboards. It uses a bolt-on connection to secure directly to the bus.
How do you adjust the trip settings on the HLXD63B450?
This breaker is equipped with a thermal magnetic trip unit that features fixed thermal protection for long time overloads. The instantaneous magnetic trip response is adjustable via a dial on the front of the breaker, allowing you to fine tune the short circuit protection.
Does the HLXD63B450 support reverse feeding?
Yes, the HLXD63B450 features a non-interchangeable trip unit, which meets UL 489 requirements for reverse feed applications.
Is the HLXD63B450 suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is certified to protect heating, air conditioning, and refrigeration equipment circuits.
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