GE TKMA3Y1200

Product Name:​ GE K-Frame 1200 A Molded Case Circuit Breaker (Non-Automatic Feed-Thru Switch)
Product Introduction:​ Heavy-duty 3-pole molded case breaker/switch in GE K1200 frame, rated 1200 A continuous, intended as manual disconnect or host for shunt/UV release accessories.
Technical Specifications:
  • Frame: K1200 (TKMA type)
Category:
Description
  • Poles: 3
  • Current: 1200 A
  • Voltage: 600 V AC, 250 V DC
  • IC Rating: 30 kA at 480 V AC
  • Trip Unit: Non-automatic (no thermal-magnetic trip, requires external protection)
  • Connection: Feed-thru line/load lugs, Cu/Al
  • Dimensions: 15.5 × 8.25 × 5.5 in (approx.)
  • Weight: 32.4 lb / 14.7 kg (vendor-dependent)
    Functional Features:​ High short-circuit withstand, panel or switchboard mount, accepts shunt trip/aux contacts, rugged thermoset housing.
    Application Scenarios:​ Main switchboards, MCC incoming feeders, industrial power distribution, generator tie switches.
    Installation Notes:​ Bolt to rigid bus structure; use calibrated torque on lug connections; ensure clearance for arc flash; only qualified electricians.
    Usage Precautions:​ Not a protective relay by itself—pair with overcurrent relay; de-energize before manual operation under load; inspect contacts periodically.
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