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GE SGLB36BD0600
1. Product Introduction
GE SGLB36BD0600 is a General Electric (GE) Spectra Series RMS molded case circuit breaker (MCCB) designed for industrial and commercial power distribution systems. It is a high-capacity electronic trip breaker featuring MicroVersaTrip Plus LSIGT protection, suitable for main feeders, switchboards, and power panel applications.
The model designation indicates:
- SGLB – Spectra Series 600A frame, 65kA class
- 36 – 3-pole, 600V class
- BD – MicroVersaTrip Plus electronic trip unit with LSIGT protection
- 0600 – 600A frame rating
2. Technical Specifications
| Parameter |
Specification |
| Manufacturer |
GE (General Electric) |
| Series |
Spectra RMS |
| Product Type |
Molded Case Circuit Breaker (MCCB) |
| Model |
SGLB36BD0600 |
| Poles |
3 poles |
| Rated Voltage |
600 VAC maximum |
| Frame Size |
600 A |
| Continuous Current Rating |
600 A |
| Interrupting Capacity |
65 kA @ 480 VAC (typical rating) |
| Trip Unit |
MicroVersaTrip Plus |
| Protection Function |
LSIGT |
| Mounting |
Bolt-on |
| Phase |
3-phase |
| Protection Type |
Solid-state electronic trip |
| Standards |
UL 489 / CSA / IEC related industrial breaker standards |
3. Protection Functions (LSIGT)
The built-in electronic trip system provides:
- L – Long Time Protection
- Overload protection
- Adjustable thermal-equivalent characteristics
- S – Short Time Protection
- Short-circuit coordination
- Selective tripping with downstream breakers
- I – Instantaneous Protection
- Fast clearing of high fault currents
- G – Ground Fault Protection
- Detects earth leakage faults
- T – Trip Indicator / Trip Target
- Provides trip status indication
4. Main Features
Electronic RMS Sensing
- Digital sampling technology improves protection accuracy.
- Suitable for both sinusoidal and non-linear loads.
Adjustable Protection Settings
- Field-adjustable trip parameters.
- Allows coordination with upstream and downstream protection devices.
High Interrupting Capability
- 65kA short-circuit rating at 480V makes it suitable for demanding industrial systems.
Interchangeable Trip Technology
- Uses MicroVersaTrip Plus rating plug technology, allowing rating adjustments within compatible limits.
5. Structural Composition
Typical SGLB36BD0600 assembly includes:
- Molded insulated housing
- Provides mechanical support and electrical isolation.
- Main contacts
- High-current switching mechanism.
- Arc extinguishing chambers
- Suppress electrical arcs during interruption.
- Electronic trip unit
- MicroVersaTrip Plus LSIGT module.
- Current sensors
- Measure phase current for protection calculations.
- Terminal connections
- Bolt-on connection system for switchboards/panelboards.
6. Application Fields
GE SGLB36BD0600 is commonly used in:
- Industrial power distribution systems
- Motor control centers (MCC)
- Factory electrical switchboards
- Commercial buildings
- Data centers
- Oil & gas facilities
- Utility auxiliary power systems
- Large HVAC and mechanical systems
7. Advantages
- High reliability for large-current protection
- Advanced electronic protection compared with thermal-magnetic breakers
- Supports selective coordination
- Suitable for complex industrial electrical networks
- Compatible with GE Spectra RMS distribution equipment
8. Replacement & Maintenance Notes
- Verify:
- Frame size (600A)
- Pole count (3P)
- Voltage class (600V)
- Trip unit type (MicroVersaTrip Plus LSIGT)
- Interrupting rating before replacement
- Because GE Spectra MCCBs are legacy products, replacement availability may vary. Refurbished and new-surplus units are commonly supplied through industrial electrical equipment vendors.
9. Conclusion
The GE SGLB36BD0600 is a heavy-duty 600A, 600V, 3-pole Spectra RMS molded case circuit breaker with MicroVersaTrip Plus LSIGT electronic protection. It is designed for reliable protection and coordination in medium-to-large industrial electrical distribution systems where accurate fault detection and high interrupting capability are required.
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