Siemens 3RU2116-1BB0 Overload Relay Rated at 1.4-2 amps 3RU2116-1BB0 Information PDF (Fits Siemens 3RT201 Contactors) Features and technical characteristics 1 NO & 1 NC auxiliary contacts Manual/automatic RESET Trip indicator STOP button Test function Sealable cover Application:3RU21 overload relays provide overload protection for three-phase inductive motors withrated currents of up to 100A (75HP, AC-3,480V). They are used in conjunction with3RT20 contactors to form motor starters. Trip class:The 3RU21 overload relays are designed inaccordance with trip class 10, i.e. trips in lessthan 10 seconds at 6 times the trip current setting (FLA). The 3RU21 thermal overload relay is set by adjusting to the rated motor current with a setting dial. The range on the setting dial is calibrated in amperes.
