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GE SKLL36BB1200

Product Name: GE Spectra Series SKLL Molded Case Circuit Breaker
Product Description: A 1200 A fixed-mount low-voltage molded case circuit breaker with electronic LSIG trip unit for main incoming and feeder protection in industrial switchgear and commercial substations.
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Detailed content

Technical Specifications:
  • Frame: SKLL 3600 A frame, 3-pole
  • Rated Current: 1200 A continuous
  • Voltage: 600-690 V AC 3-phase
  • Breaking Capacity: 65 kA @ 480 V AC, 50 kA class
  • Trip Unit: MicroVersaTrip Plus / NGC solid-state LSIGT (L+S+I+G+T)
  • Mechanical Life: 10,000 operations
  • Electrical Life: 5,000 at rated current
  • Temperature: -25 °C to +70 °C
    Functional Features: Adjustable long-delay, short-delay, instantaneous, ground-fault, and thermal settings; optional motor operator; RS-485 energy comms.
    Material Composition: Silver-cadmium-oxide contacts, tin-plated electrolytic copper bus, glass-reinforced polyester housing (UL94 V-0), steel arc-chute.
    Structural Characteristics: Fixed bolt-on frame, front flip door with LCD setting knob, shunt/trip accessories, bottom fixing bolts.
    Working Principle: CT senses phase current → microprocessor compares to set curve → releases spring mechanism → contacts part → arcs quenched in chute.
    Installation Requirements: Bolt to switchboard bus, torque lugs per GE manual, 65 kA downstream requires series-rated combo.
    Usage Notes: Only licensed electricians adjust trip dials; verify frame size before replacement; do not operate above 690 V AC.

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