GE SFHA36AT0250 Spectra RMS 250A 3-Pole 600V MCCB

The GE SFHA36AT0250 is a New In Box (NIB) premium-grade Molded Case Circuit Breaker (MCCB) from General Electric’s highly-reliable Spectra RMS™ Series. This 250-Amp, 3-phase, 600VAC breaker is designed for premium electrical protection in harsh commercial, industrial, and marine settings and features the latest in electronic solid-state sensing.

Its sophisticated microprocessors determine the real RMS value of the current waveform instead of the conventional thermal-magnetic substitutes. This helps to reduce nuisance tripping caused by high harmonic content generated by modern electrical equipment such as SCR drives, variable frequency drives (VFDs), computer power systems and specialty machinery. This present limiting device is installed in a compact SF250 frame and is fitted with accurate, adjustable Long-Time, Short-Time and Instantaneous (LSI) trip functions, all necessary for system coordination and protection of downstream equipment.

Model Details:

• Manufacturer: General Electric (GE) / ABB
• Model Range: Spectra RMS™ Electronic Trip (SF250 Frame)
• Manufacturer Part Number (MPN): SFHA36AT0250
• UPC / GTIN: 783164211580
• Product Condition: New In Box

GE SFHA36AT0250 Breaker Technical Specifications

Features:

1. Solid State Protection: State-of-the-art digital trip system sensing RMS accurately for enhanced safety and reliability.
2. High Interrupting Capacity: 35kAIC @ 480V, perfectly suited for heavy-duty applications.
3. Bolt-On Connection: Fast, easy and secure installation for quick project turn-around. ​
4. The Spectra line is a trusted GE product line that has been proved to perform well in power distribution.
5. Adjustable Trip Functions: Configure Long Time, Short Time, and Instantaneous trip parameters.

Industrial Uses:

1. Marine & Offshore Distribution Marine switchboards, auxiliary distribution panels and offshore motor control centers (MCCs) are ideal applications where thruster drives and winches create a high level of harmonic noise.
2. Industrial Manufacturing Plants: Offers essential protection for the main or branch circuits of heavy machinery, automobile assembly lines, and high-load automated distribution systems.
3. HVAC systems for commercial buildings. Safe handling of high inrush currents and structural load for industrial chillers, heating networks and ventilation arrays (big).
4. Critical Power & Data Centers. Ensures power continuity with selective coordination by preventing overcurrent anomalies to UPS systems as well as server room distribution networks.
5. Renewable Energy Infrastructure: Used as a super robust overcurrent disconnect in solar inverter collectors and localized wind turbine distribution hubs.

Guide By NDMarineTech’s Engineer:

1. Rating Plug Verification: Note that while this is a 250A frame, the exact continuous current rating is established by the front-mounted rating plug (typically standard SRPF250A250). Ensure your plug rating mirrors your design load calculations before energizing.
2. Torque Specs Matter: Marine vibration will back out poorly tightened lugs. When installing the TCAL29 or equivalent lug kits, use a calibrated torque wrench to tighten conductors within the specified range for 8 AWG to 350 kcmil wires. Never guess the tightness on a high-amperage electronic breaker.
3. Selective Coordination: Utilize the adjustable tracking short-time settings to coordinate with upstream breakers. This guarantees that if a fault occurs down the line, only this branch trips, leaving your primary main distribution bus completely energized.