WEG offers thermal overload relays in 3-pole versions up to 840A and 2-pole versions up to 80A for protecting motors in the event of overload or phase failure.
The RW series of thermal overload relays can be mounted directly on WEG contactors up to 105A and mounted separately from 112A to 800A.
Standard Features
2-pole and 3-pole versions available
Trip class 10
Adjustable current setting ranges
Isolated N.C “Trip” and N.O “Alarm” auxiliary contacts
Phase failure/unbalance sensitivity protection
Selectable Manual/Auto RESET button with or without TEST
Ambient temperature compensation from -13°F to +140°F
Wide Range of Accessories
Panel mounting brackets
External RESET pushbuttons
Connector links
Spare lugs
May 2023: Product line extention announcement -
IEC contactors CWB 95 – 125A
NEMA contactor CWBN size 3
Thermal overload relays RW117-3D 63 – 140A associated with the above contactors
Features Include:
Current Range: 1.6 - 8 A
Maximum Insulation Voltage: Ui = 690 V
3-pole solid state overload relays with adjustable trip class: 10, 20 and 30
Rated Operational Frequency: 50/60 Hz
Self-powered
Wide adjustment range (5:1)
Thermal memory
Phase loss protection (less than 5 seconds)
Phase unbalance protection (>40% between phases)
Temperature compensated (-20 °C up to +60 °C)
Manual or automatic reset modes
Direct mounting on CWB9...38 and CWM9...105 contactors
Separate mounting is possible with accessories 1NO + 1NC built in auxiliary contacts
Overload Relay, Solid State, 3 Pole, 0.4-2.0A, Adjustable Trip Class 10, 20 or 30, Selectable Automatic/Manual Reset Button, Use with CWB9 to CWB38 Contactor Models
Overload Relay, Solid State, 3 Pole, 0.4-2A, Adjustable Trip Class: 10, 20 or 30, Selectable Local and Remote Reset Modes, Use with CWB9 to CWB38 Contactor Models
Overload Relay, Solid State, 3 Pole, 5-25A, Adjustable Trip Class: 10, 20 or 30, Selectable Local and Remote Reset Modes, Use with CWB9 to CWB38 Contactor Models
Overload Relay, Solid State, 3 Pole, 8-40A, Adjustable Trip Class: 10, 20 or 30, Selectable Local and Remote Reset Modes, Use with CWB9 to CWB38 Contactor Models
