WEG RW27-2D3-U040 Thermal Overload Relay 32-40A 3-Pole Class 10

The WEG RW27-2D3-U040 is a 3-pole thermal overload relay with a 32–40A current adjustment range, designed for direct mounting to WEG CWB9-38 series contactors. With Class 10 trip characteristics, it provides reliable overload protection for electric motors up to 840A across the RW27 family, making it ideal for motor starter assemblies. The compact design saves panel space and integrates seamlessly into combination motor starters.
 
Key Specifications
Current Adjustment Range: 32–40A
Poles: 3
Trip Class: 10
Mounting: Direct (to CWB9-38 contactors)
Mounting Configuration: 2D
Rated Insulation Voltage (Ui): 690V (IEC) / 600V (UL)
Rated Impulse Withstand Voltage (Uimp): 6 kV
Operational Frequency: 25–400 Hz
Max Operating Frequency: 15 ops/hour
Suitable for DC Loads: Yes
Short-Circuit Protection (gL/gG fuse): 6 A
Max Fuse (Type 2 Coordination): 125 A gL/gG
Protection Rating: IP10 (main) / IP20 (auxiliary)
Dimensions: 72 × 45 × 82 mm
Weight: 0.165 kg
 
Ideal for combination motor starters protecting medium horsepower motors in pumps, fans, compressors, and general industrial machinery requiring reliable Class 10 overload protection.