WEG UMBW-1C2-50 MINI CIRCUIT BREAKER UMBW-1C2-50 CORRO-DUTY®

WEG UMBW-1C2-50 MINI CIRCUIT BREAKER UMBW-1C2-50 CORRO-DUTY®Introducing the new WEG UMBW Series thermal magnetic miniature circuit breakers. This new offering includes both UL489 and UL1077 approvals to provide a solution for circuit and equipment protection in industrial electrical equipment. UL approval UL1077 Trip curve C Number of poles 2 poles Rated current 50 A Maximum voltage 277 480 VAC Type Thermal magnetic Attributes UL approval UL1077 Trip curve C Number of poles 2 poles Rated current 50 A Maximum

lb Locked rotor torque 229 % Breakdown torque 350 % Locked rotor time 45s (cold) 25s (hot) Moment of inertia (J) 0

89 % Rated voltage 460 V Rated current 3

Model_Number K055WGK0951012B PRODUCT NAME

15 SHIPPING WEIGHT 29 BREAKDOWN TORQUE 72

weight³ 301 lb Efficiency

58 Technical Data

0 Rated voltage 500

lb Locked rotor torque 250 % Breakdown torque 310 % Locked rotor time 27s (cold) 15s (hot) Moment of inertia (J) 87

weight³ 2528 lb Efficiency

5 No load current 95

15 STARTCAPMFD N\A SHIPPING WEIGHT 100 BREAKDOWN TORQUE 375 BREAKDOWN TORQUE UOM PERCENT OF FLT LOCKED ROTOR TORQUE 239 LOCKED ROTOR TORQUE UOM PERCENT OF FLT INSULATION CLASS F KVA CODE LETTER K LOCKED ROTOR AMPS 31 NEMA NOMINAL EFFICIENCY 89

Degree of Protection IP55 Enclosure IC411 - TEFC Mounting B3T Rotation¹ Both (CW and CCW) Noise level² 80