WEG CWB18-11-30D77 CONTACTOR CWB18-11-30D77 Cooling TowersDeveloped according to IEC 60947 and UL 508 international standards, the new WEG CWB line of contactors meets the requirements of a wide range of industrial applications worldwide. Rated current 18 A Reference CWB Main contact 3 NO Control voltage 208V 50 60Hz Terminal type Screw Attributes Rated insulation voltage Ui (pollution degree 3) IEC 60974 4 1 690 V Rated insulation voltage Ui (pollution degree 3) UL, CSA 600 V Rated operational frequency
Amperes 590 A LRC 6
3 STACK 2 MOUNTING RIGID BASE MOTOR TYPE SERM OPPOSITE END BEARING 6203 SHAFT END BEARING 6203 AMBIENT 40 ROTATION REVERSIBLE SERVICE FACTOR 1
Standard NEMA MG-1 Frequency 60 Hz Voltage 575 V Number of poles 12/6 Degree of Protection IP55 Synchronous speed 600/1200 rpm Output rating 3
15 STARTCAPMFD N\A SHIPPING WEIGHT 60 BREAKDOWN TORQUE 400 BREAKDOWN TORQUE UOM PERCENT OF FLT LOCKED ROTOR TORQUE 248 LOCKED ROTOR TORQUE UOM PERCENT OF FLT INSULATION CLASS F KVA CODE LETTER L LOCKED ROTOR AMPS 55
lb Locked rotor torque 330 % Breakdown torque 400 % Locked rotor time 19s (cold) 11s (hot) Moment of inertia (J) 1
weight³ 521 lb Efficiency
Frame 364/5T Output 50 HP (37 kW) Number of Poles 6 Frequency 60 Hz Rated speed 1190 rpm Slip 0
127 mm Fan material Bronze Bearing cap Yes- Bearing Cap Bolt Material Carbon Steel Balancing Method 1/2 Key Drip Cover Without Overload protector (phenolic) Without overload protector Connection Cables Quantity 3 Features
550 kW) Number of Poles 6 Frequency 50 Hz Rated speed 930 rpm Slip 7
4x(Code L) No load current 6
Standard NEMA MG-1 Frequency 60//50 Hz Voltage 230/460//380 V Number of poles 4 Degree of Protection IP55 Synchronous speed 1800 rpm Output rating 40 HP Mounting W-6 Flange P Terminal box¹ Left position Enclosure IC411 - TEFC
0 Degree of protection NEMA 4/4X/12 Number of NO blocks 0
