WEG RW27-2D3-D004 is a three-pole thermal overload relay designed for motor protection. It features an adjustable current range of 0.28 to 0.4 amps and a Class 10 trip characteristic for fast overload response. This relay is part of the RW27 series, compatible with WEG contactors for building motor starters in industrial control panels. It provides reliable protection against phase loss, overload, and jamming in three-phase AC motor circuits.

The RW overload relays protect loads against overheating caused by overloads or phase loss. When we have an overload or a phase loss in the circuit, the motor current increases. Such current rise activates the tripping mechanism that will actuate on the auxiliary contacts 95-96 (NC) and 97-98 (NO). The auxiliary contacts disconnect the load by means of a contator. The time for disconnection is related to the overload current and the current set on the relay, which is properly represented on the relay tripping curve. After the trip, it is necessary to wait for the system to reestablish in order to do the reset, which can be done automatic or manually.

• Available in the three-pole and two-pole versions
• Tripping thermal class 10
• Direct coupling to the compact contactor line of 7 to 32A (CW07, CWC07�025) and contactors of 9�140 A (CWM9�105 and CWB 9�125) without requiring accessories
• Accessory enables mounting on DIN rail 35mm (EN 50022) or tightened with screws
• Developed in compliance with the standards: IEC 60947-4-1, IEC 60529, IEC 60068, VDE 0106, UL-508
• Main homologations: UL, CE, IRAM, BV, NOM ANCE, RCC, PCT