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Siemens HFXD63B070L Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Siemens
HFXD63B070L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HFXD63B070L
Quantity
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Siemens HFXD63B070L - 70A 3 Pole Molded Case Circuit Breaker
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Description
Built for heavy-duty industrial applications, the Siemens HFXD63B070L is a 70A, 3-pole molded case circuit breaker from the Sentron FD frame series. It provides robust thermal-magnetic protection for demanding power distribution systems. This unit mount MCCB is engineered for installation in Siemens enclosures and switchboards. It comes equipped with factory-installed line and load side lugs. Offering high interrupting capacity, the breaker is rated for 65kAIC at 480VAC and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HFXD63B070L |
| Series | HFXD6 |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Switchboards |
| Wire Gauge | 6 AWG - 350 kcmil (Cu/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, Undervoltage Release, Auxiliary Switch, Alarm Switch, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Line and Load Side Lugs |
| Standards | HACR, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Reverse Feed |
Product FAQs
7 answersIs the trip unit on the HFXD63B070L fully adjustable?
No, this breaker features a thermal magnetic trip unit with a fixed thermal setting for overload protection and an adjustable magnetic setting for short circuit protection.
What is the difference between the HFXD63B070L and the standard FXD63B070L?
The H in HFXD6 designates a high interrupting capacity. The HFXD63B070L is rated for 65kA at 480VAC, whereas the standard FXD6 version is rated for 35kA at 480VAC.
What wire sizes are accepted by the factory installed lugs on the HFXD63B070L?
The included line and load lugs accept 6 AWG to 350 kcmil copper or aluminum conductors.
What type of equipment is the HFXD63B070L designed to be installed in?
This FD frame unit mount breaker is designed for use in compatible Siemens switchboards and individual enclosures.
Can the Siemens HFXD63B070L be reverse fed?
Yes, standard Siemens Sentron FD frame thermal magnetic circuit breakers are UL listed for reverse feed applications.
Does this breaker plug into a panelboard bus?
No, the HFXD63B070L is a unit mount, feed-thru breaker. It bolts directly to the mounting surface and uses wire lugs for both line and load connections rather than plugging into a busbar.
What is the maximum frame rating for the Siemens FD frame used by this breaker?
While this specific HFXD63B070L breaker has a 70A trip rating, it is built on the Siemens Sentron FD frame, which has a maximum capacity of 250 amps.
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