The electronic overload relay 3RB31234RB0 from Siemens ensures continuous motor and plant protection. Thanks to the wide setting range of 0.1-0.4 A, the variety of types can be considerably reduced using the SIRIUS overload relay 3RB31234RB0. One normally closed and one normally open contact are available as auxiliary contacts. In size S0, the electronic overload relay 3RB31234RB0 offers optimum protection for motors and plants up to 0.09 kW. The power loss can be reduced by up to 98 % as compared to thermal overload relays. Monitoring relays are used in all areas of electrical switchgear technology.