WEG CWB50 50 Amp 3-Pole IEC Contactor — 1NO + 1NC Auxiliary
| Specifications (As Configured) | |
|---|---|
 Vendor |
WEG
|
 SKU |
CWB50-11-30C03
|
The WEG CWB50 is a 50 A (AC-3) three-pole IEC power contactor with one normally-open and one normally-closed built-in auxiliary contact (the -11- configuration). Built to IEC 60947 and UL 508 (UL file E202315), the CWB line delivers reliable motor switching and control in a compact 54 mm-wide body that mounts on 35 mm DIN rail or by screw. Choose the coil voltage your panel requires below.
Key specifications
- Rated operational current (AC-3, Ue ≤ 440 V): 50 A
- Main contacts: 3 NO (3-pole)
- Built-in auxiliary contacts: 1 NO + 1 NC
- Maximum UL horsepower — single-phase: 3 HP @ 115 V, 10 HP @ 230 V
- Maximum UL horsepower — three-phase: 15 HP @ 200–230 V, 40 HP @ 480–575 V
- Conventional thermal current (Ith, AC-1): 90 A
- Rated operational current (AC-4, Ue ≤ 440 V): 18.5 A
- Rated insulation voltage (UL/CSA): 600 V
- Terminals: screw type; tightening torque 5.0 N·m
- Operating temperature: −25 °C to +55 °C
- Mechanical life: 6 million operations; electrical life (AC-3): 1.6 million operations
- Standards: IEC 60947-1/-4-1/-5-1, UL 508 (UL file E202315)
- Accepts WEG BFB/BLB add-on auxiliary contact blocks and VRB surge suppressors
Typical applications
Across-the-line motor starting and control for pumps, fans, blowers, air compressors, conveyors and HVAC equipment, plus general switching of lighting and resistive heating loads in industrial and commercial control panels.
The WEG CWB50 three-pole IEC contactor pairs a 50 A AC-3 rating with a built-in 1NO + 1NC auxiliary and a full range of AC and DC coil voltages, making it a versatile, panel-friendly choice for motor control and automation circuits.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
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