Imagination at work UL489 compared to IEC60898 Jonathan Potter GE Energy Management Industrial Solutions

Residential breaker performance UL 489 and IEC60898 Define construction and product performance requirements Include spacing and mechanical strength requirements Define Endurance, Overload, Short Circuit, Heat Rise requirements 2 GE Industrial Solutions | November 2014

3 UL 489 compared to IEC 60898

Compare and contrast performance requirements Similarities Must Trip 135% - 145% 200% - 255% Must not Trip 110% - 113% Short Circuit High available faults Differences Heat Rise After Overload – Clean Product 50 deg C – 60 deg C (80C for 947-2) Endurance 10,000 cycles – 4,000 cycles 4 GE Industrial Solutions | November 2014

NEMA and IEC panel comparison 5 GE Industrial Solutions | November 2014

NEMA compared to IEC residential breaker GE Industrial Solutions | November NEMA Plug-in style works as a system with load center Typical ratings 120/240V up to 22kA Available in 240V plug-in versions Meets UL489 MCCB requirements IEC Lug/Lug style works on a DIN rail load center Typical ratings 220/380V up to 6kA Meets IEC and/or IEC

UL 489 test sequences X Sequence – Overload Verify 135% trip Verify 200% trip 6 * In 50 cycles Heat Rise 50° C limit Dielectric 7 GE Industrial Solutions | November 2014

UL 489 test sequences Y Sequence – Endurance Verify 200% trip 1 * In 6000 cycles No load 4000 cycles Verify 135% trip Verify 200% trip Low level short circuit 1.5kA Verify 200% trip Dielectric 8 GE Industrial Solutions | November 2014

UL 489 test sequences Z Sequence – Short Circuit Verify 200% trip 5kA short circuit O-com CO-com O-Com Verify 200% trip Dielectric 9 GE Industrial Solutions | November 2014

UL 489 test sequences Per Manufacturer High Available Fault – Short Circuit Verify 200% trip 5kA short circuit O-com CO-com Verify 250% trip Dielectric (900v) 10 GE Industrial Solutions | November 2014

IEC panel

NEMA panel