The SIEFD63F250 is a high-performance Siemens 3-Pole 250 Amp Circuit Breaker, designed for reliable overload and short-circuit protection. Engineered for durability, it features a robust frame that ensures optimal functionality in various electrical applications. Ideal for industrial and commercial settings, this breaker guarantees safety and efficiency in your electrical systems.
| Brand | Siemens |
|---|---|
| Type | Molded-Case (MCCB) |
| Amperage | 250 A |
| Poles | 3-Pole |
| Frame / Series | FD63F |
| Catalogue # | SIEFD63F250 |
The SIEFD63F250 is a Siemens FD63F-frame moulded-case circuit breaker (MCCB) rated 250 A, 3-Pole. As an MCCB, it is designed for installation in commercial and industrial panelboards, switchboards, and distribution equipment engineered to accept FD-frame devices — not residential loadcentres. It is commonly applied in Siemens/ITE panelboards and switchboards compatible with the FD frame series.
Exact fitment depends on your specific panelboard or switchboard model and its bus configuration. Send us your panelboard or switchboard model and we'll confirm compatibility.
The 'F' suffix in the FD63F designation typically denotes a specific feature variation within Siemens' FD frame series — such as an increased interrupting rating or an altered mounting configuration. Always cross-reference your existing equipment's requirements or the original breaker label before substituting. Contact us and we can help verify the correct variant for your application.
It can serve as a direct replacement if your panelboard or switchboard is rated for Siemens FD-frame MCCBs and the bus/mounting provisions match. Key factors to confirm are the breaker's voltage rating, interrupting capacity (kAIC), and the panel's frame acceptance. Bring your old breaker's label details or panel model to one of our Calgary, Edmonton, or Vancouver counters and we'll help you confirm the fit.
Siemens FD-frame breakers have seen production and catalogue changes over the years, and certain variants can be difficult to source. Northern Breaker Group specialises in obsolete and hard-to-find breakers — if the SIEFD63F250 is no longer available through standard channels, we can source new, surplus, or fully tested refurbished units. Request a quote through our website or visit one of our counter locations for availability.
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