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Siemens HHFD63B150 Molded Case Circuit Breaker
- 150A
- 3 Pole
- Unit Mount
Siemens
HHFD63B150
Molded Case Circuit Breaker
Brand
Siemens
SKU
HHFD63B150
Quantity
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Siemens HHFD63B150 - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens HHFD63B150 - 150A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | HHFD63B150 |
| Series | HHFD6 |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| Wire Gauge | 6 AWG - 350 kcmil (Cu), 4 AWG - 350 kcmil (Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Extra High Interrupting Capacity, Interchangeable Trip Unit, Trip-Free Mechanism |
Quantity
Siemens HHFD63B150 - 150A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | HHFD6 |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| Wire Gauge | 6 AWG - 350 kcmil (Cu), 4 AWG - 350 kcmil (Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Extra High Interrupting Capacity, Interchangeable Trip Unit, Trip-Free Mechanism |
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Description
Belonging to the Sentron FD Frame series, the Siemens HHFD63B150 provides heavy-duty commercial and industrial circuit protection. This 3-pole, 150A molded case circuit breaker utilizes a thermal magnetic trip unit, delivering reliable long-time and adjustable instantaneous (LI) functions. Designed as a unit mount MCCB, it installs seamlessly into Siemens panelboards and enclosures. For legacy system maintenance, it precedes the 3VA5215-7EC31-0AA0, which requires a panel retrofit kit.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HHFD63B150 |
| Series | HHFD6 |
| Amperage | 150A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Sentron Panelboards, Switchboards, Enclosures |
| Wire Gauge | 6 AWG - 350 kcmil (Cu), 4 AWG - 350 kcmil (Al) |
| Max Wire | 350 kcmil |
| Min Wire | 6 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, Alarm Switch, Undervoltage Release, Lug Kits |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Extra High Interrupting Capacity, Interchangeable Trip Unit, Trip-Free Mechanism |
Product FAQs
8 answersWhat does the HHFD prefix indicate compared to standard FD breakers?
The HHFD prefix designates a very high interrupting rating tier within the Siemens Sentron family. While standard FD6 breakers offer 35kAIC at 480V and HFD6 offer 65kAIC, the HHFD6 series provides 100kAIC at 480V for systems with higher available fault currents.
How is the instantaneous trip adjusted on the HHFD63B150?
This breaker features an adjustable magnetic trip unit. Electricians can use the dial located on the front face of the breaker to increase or decrease the instantaneous trip threshold, allowing for coordination with motor inrush currents or other specific load characteristics.
Can the HHFD63B150 replace legacy I-T-E breakers?
Yes, Siemens manufactures the Sentron series as a direct continuation of the legacy I-T-E line. This breaker can replace older I-T-E HHFD63B150 or similar 150A FD frame breakers in existing switchboards and enclosures.
Does the HHFD63B150 include ground fault equipment protection?
No, this model is equipped with a standard thermal magnetic trip unit providing long-time and instantaneous (LI) protection only. It does not offer integral ground fault protection.
Are the lugs on this breaker rated for aluminum wire?
Yes, the standard lugs accept both copper and aluminum conductors. When using aluminum wire, ensure an appropriate oxide-inhibiting joint compound is applied during installation to prevent corrosion and maintain a secure connection.
Is the 150A thermal rating adjustable?
No, the thermal element on the HHFD63B150 is fixed at 150 amps. Only the magnetic trip setting can be adjusted in the field.
What does unit mount mean for the HHFD63B150?
Unit mount indicates that this breaker bolts directly to the base pan or mounting plate of an enclosure or switchboard using mounting screws, rather than snapping onto a busbar like a plug-in panelboard breaker.
Can this 3-pole breaker be used on a 240V system?
Yes, while it has a maximum voltage rating of 600VAC, it is fully compatible with 240V and 480V systems. The interrupting capacity increases at lower voltages, providing up to 200kAIC at 240VAC.
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