Description
GE SFHA36AT0250
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | SFHA36AT0250 |
| Manufacturer | GE |
| Product Family | Spectra RMS |
| Frame | SF250 |
| Product Type | Electronic Molded Case Circuit Breaker |
| Poles | 3 |
| Maximum Current | 250A |
| Maximum System Voltage | 600 VAC |
| Trip Technology | Digital solid-state RMS sensing |
| Trip Function | LSI |
| Rating Plug Range | 70–250A |
| Interrupting Rating @ 240 VAC | 65 kAIC |
| Interrupting Rating @ 480 VAC | 35 kAIC |
| Interrupting Rating @ 600 VAC | 22 kAIC |
| Instantaneous Protection | Adjustable |
| Short-Time Protection | Tracking short-time |
| Long-Time Protection | Established by interchangeable rating plug |
| Reverse Feed | Suitable |
| Terminal Lug | TCAL29 |
| Conductor Range | #8–350 kcmil Cu/Al |
| Mounting | Panel / bolt-on |
| Approx. Dimensions | 10.12 × 4.12 × 3.81 in. |
| Approx. Weight | 8.9 lb |
The SFHA36AT0250 product number identifies an SF250-frame Spectra RMS breaker with a 250A maximum sensor rating. The “H” in the catalog structure corresponds to the 35 kA interruption class at 480V, while the “A” identifies the standard continuous-load configuration. The final 0250 identifies the 250A maximum sensor.
One procurement point deserves emphasis: SFHA36AT0250 is not necessarily a complete 250A breaker with a 250A trip plug installed. GE’s documentation specifies interchangeable rating plugs, and the catalog lists plugs from 70A through 250A for the SF250 frame.
Product Introduction
The GE SFHA36AT0250 is a three-pole Spectra RMS electronic molded case circuit breaker built around the SF250 frame. It uses digital RMS sensing and an LSI trip system for feeder and distribution protection, with adjustable instantaneous and tracking short-time functions. The breaker supports systems up to 600 VAC and is suitable for reverse-feed applications.
For plant maintenance, the main issue is matching more than the 250A label. The installed rating plug, system voltage, available fault current, terminal arrangement, and required interrupting capacity all need to agree with the existing installation. GE’s documentation identifies the associated TCAL29 front-connection lug for this frame.
SFHA36AT0250
Application Scenarios & Field Pitfalls — The Engineer’s Perspective
Engineering Pain Point
A frequent replacement error is treating SFHA36AT0250 as a generic 250A breaker. It is actually part of the Spectra RMS SF250 family, where the breaker frame and rating plug work together to establish the operating current rating. A replacement should therefore be checked against the original rating plug, fault-current study, panel configuration, and conductor termination before installation.
Typical Applications
- Industrial distribution panels — protection of three-phase feeders supplying production equipment and plant auxiliaries.
- Manufacturing facilities — replacement of Spectra RMS feeder breakers in existing electrical distribution equipment.
- Process plants — protection of medium-current auxiliary distribution circuits.
- Plant retrofit projects — maintenance replacement where the existing Spectra RMS mounting arrangement is being retained.
Technical Pitfalls to Avoid
- Do not assume the breaker operates at 250A simply because the model ends in 0250.
The SF250 frame accepts interchangeable rating plugs from 70A through 250A. The actual installed plug must be checked before commissioning. - Verify the short-circuit rating at the operating voltage.
The SFHA version is documented at 35 kAIC at 480 VAC, while the ratings change with voltage. At 600 VAC, the documented interrupting rating is 22 kAIC. Selecting by continuous current alone is not sufficient. - Confirm whether lugs and rating plug are included.
The catalog identifies TCAL29 as the front-connection lug for the frame, while rating plugs are separately identified. Procurement specifications should state whether the requirement is a frame, complete breaker, or breaker with a particular rating plug and terminal hardware.
Related Products
- SFLA36AT0250 — -frame Spectra RMS variant with a higher interruption class than SFHA; selection depends on the required fault-current rating.
- SFPA36AT0250 — -frame variant with the highest interruption class in this product family.
- SRPF250A150 — 150A rating plug for -frame applications.
- SRPF250A200 — 200A rating plug for the same frame.
- SRPF250A225 — 225A rating plug for applications below the maximum 250A frame rating.
- SRPF250A250 — 250A rating plug corresponding to the maximum sensor rating.
- SGHA36AT0400 — larger Spectra RMS frame for applications requiring substantially higher feeder current.
- SEHA36AT0150 — smaller 150A Spectra RMS frame for lower-current distribution applications.
- TCAL29 — front-connection terminal lug associated with the frame.
The documentation groups , SFLA36AT0250, and SFPA36AT0250 as 250A Spectra RMS frame options, differentiated primarily by interruption class. The same documentation lists the SRPF250 series rating plugs and TCAL29 terminal lug.
