General Electric SFHA36AT0250 Specifications
| Manufacturer | General Electric / ABB |
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| Catalog Number | SFHA36AT0250 |
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| Family | Spectra RMS |
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| Frame | SF250 |
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| Device type | Current-limiting molded case circuit breaker — electronic LSI trip |
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| Sensor rating | 250 A — the last four digits of the catalog number |
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| Ampere rating | Set by the installed rating plug, up to 250 A |
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| Voltage | 600V AC |
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| Poles | 3-Pole |
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| Phase | 3-Phase |
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| Mounting | Bolt-On — suitable for reverse feed |
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| Protection | Electronic — digital solid-state RMS sensing, LSI (long-time, short-time, instantaneous). Adjustable instantaneous with tracking short-time |
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| Interrupting rating | 65 kA @ 240V AC · 35 kA @ 480V AC · 22 kA @ 600V AC |
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| Rating plug | Required, not included — SRPF250A series (70–250 A); none fitted on this unit |
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| Accessories | Factory-installed SAST1 shunt trip and SAUXPAB1 auxiliary switch |
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| Lugs | TCAL29 line and load — #8–350 MCM Cu/Al, 60/75°C wire; torque 150 / 200 / 275 lb-in |
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| Weight | 12.3 lb |
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| Listing | UL Listed, HACR type (issue ZD-6243) · CSA · IEC 947 |
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| Condition | Reconditioned — 1-year operational guarantee |
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This unit is sold reconditioned, inspected and tested to ESP Product Standards, and guaranteed to operate normally for one year from the date of sale.
This is the full-protection version. The T in the catalog number is GE's trip-function code for LSI — long-time, short-time and instantaneous. The SFHA36AI0250 variant, with an I instead of a T, is a Mag-Break motor circuit protector with instantaneous protection only and no overload element. One letter, two very different devices. It also needs a rating plug. The ampere setting comes from a field-installable front-mounted SRPF250A70 plug, and the base catalog number ships without one. The 250 in the catalog number is the sensor rating, which caps what the plug can be set to.
Superseded by the ABB Tmax XT series with a retrofit kit. ESP stocks tested reconditioned Spectra RMS units across the SE150 and SF250 frames and can advise on rating plugs.