Operating within the Sentron FD frame family, the Siemens HHFXD63B225 is a 3-pole, 225A molded case circuit breaker. It incorporates a fixed thermal and adjustable magnetic trip unit for precise long-time and instantaneous protection. This bolt-on breaker is compatible with Siemens P2, P3, P4, and P5 panelboards and switchboards. Lugs are not included, giving contractors the flexibility to select appropriate terminal kits. It boasts an extra high 100 kAIC rating at 480VAC.
Extra High Interrupting Capacity, HACR Rated, Non-Interchangeable Trip
Product FAQs
5 answers
Which Siemens panelboards are compatible with the HHFXD63B225 circuit breaker?
This bolt-on FD frame breaker is designed for installation in Siemens P2, P3, P4, and P5 panelboards, as well as compatible Siemens switchboards.
Are mounting lugs included with this breaker?
No, the HHFXD63B225 typically ships without lugs installed. You will need to source the appropriate lug kit separately, such as the TA1FD350A for standard applications or the TC1FD350 for copper-only terminations. These standard kits accept 6 AWG to 350 kcmil conductors.
What is the difference between the Siemens HFXD63B225 and the HHFXD63B225?
The difference lies in the interrupting capacity. The HHFXD63B225 features an extra-high interrupting rating of 100kAIC at 480V, whereas the standard HFXD6 version is rated for 65kAIC at 480V.
How does the adjustable magnetic trip function work on this breaker?
The HHFXD63B225 features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic element. This allows electricians to tune the instantaneous trip setting to accommodate specific motor inrush currents and coordinate with downstream devices.
Can the HHFXD63B225 be reverse fed?
Yes. Because this breaker is built with a non-interchangeable trip unit, it meets UL 489 requirements for reverse feeding in compatible applications.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.