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Siemens HHFXD63B225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Bolt-On
Siemens
HHFXD63B225
Molded Case Circuit Breaker
Brand
Siemens
SKU
HHFXD63B225
Quantity
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Siemens HHFXD63B225 - 225A 3 Pole Molded Case Circuit Breaker
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Description
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.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HHFXD63B225 |
| Series | HHFXD6 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | FD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P2, P3, P4, P5 Panelboards, Switchboards |
| 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 |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, HACR, IEC, UL |
| Temp Rating | 40C |
| Construction Features | Extra High Interrupting Capacity, HACR Rated, Non-Interchangeable Trip |
Product FAQs
5 answersWhich 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.
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