Description
Product Name : FKN36NS125SSF GE Controller module
Product details:
The GE FKN36NS125SSF is a heavy-duty, industrial-grade Molded Case Circuit Breaker (MCCB) from General Electric’s Record Plus (FK1250 Frame) series.
Equipped with an advanced SMR1s electronic trip unit, this 3-pole breaker provides high-performance selective overcurrent and short-circuit protection for low-voltage power distribution systems, transformers, generators, and industrial switchboards.
2. Product Specifications
| Parameter | Value / Detail |
| Manufacturer | General Electric (GE) |
| Model / Part Number | FKN36NS125SSF |
| Product Family | Record Plus (FK1250 Frame) |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Number of Poles | 3 Poles (3P / 3-Phase) |
| Rated Current (I_n) | 1250 A |
| Rated Operational Voltage (U_e) | 400V – 690V AC |
| Breaking Capacity (I_{cu}) | 50 kA @ 415V AC |
| Trip Unit Type | SMR1s Solid-State Electronic Trip Unit |
| Protection Functions | LI (Long-Time Overload + Instantaneous Short Circuit) |
| Overload Setting Range | Adjustable from 500 A to 1250 A |
| Short-Circuit Setting Range | Adjustable from 750 A to 12500 A |
| Mounting / Connection | Fixed / Bolt-On, Front-Side Screw Connection |
| Control Element | Rocker Lever |
| IP Rating | IP20 |
| Weight | Approx. 16.8 kg (37 lbs) |
3. Key Product Advantages
- High Breaking Capacity: Rated for up to 50 kA interrupting capacity at 415V, effectively isolating severe fault currents and minimizing system damage.
- Solid-State Electronic Precision: The SMR1s electronic trip unit offers far accurate, repeatable, and adjustable trip settings compared to traditional thermal-magnetic trip units.
- Wide Adjustability Range: Features flexible current settings (500A–1250A) to adapt easily to varying system loads and customized protection schemes.
- Industrial Durability: Built using the rugged Record Plus FK1250 frame, designed for heavy industrial environments and continuous operation.
- Flexible Operating Options: Supports motor-drive mechanisms for remote control and automation setups.
4. Primary Applications
- Industrial Distribution Boards: Main incoming or feeder breaker in distribution panelboards and motor control centers (MCCs).
- Commercial Buildings: Primary electrical protection for large commercial complexes, data centers, and high-rise infrastructures.
- Equipment & Power Plant Protection: Specialized protection for transformers, power generators, and large mechanical loads.
- Manufacturing Facilities: Protection for high-demand industrial production lines and heavy electrical machinery.
5. Cautions & Maintenance Notes
- Installation Safety: Always ensure the main power feed is completely de-energized and verified with proper testing tools before installation, wiring, or maintenance.
- Professional Calibration: Electronic trip settings (L and I values) must be configured by qualified electrical personnel according to engineered protection selectivity studies.
- Mounting Requirements: Ensure proper torque specifications on screw connections to prevent hot spots or loose terminal connections under high loads.
- Environmental Limits: Do not expose the breaker to excessive humidity, ambient temperatures outside specifications, or highly corrosive chemical environments without additional enclosure protection (exceeding IP20).
- Lifecycle Awareness: This model series is marked as discontinued by the original manufacturer, so ensure proper verification when sourcing replacement components or accessories.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: United States
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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