Overload Relays 3RB2 Solid-State Overload Relays 3RB22, 3RB23 for high-feature applications 1) Control circuit. 4) Analog input modules, e. g. SM 331, must be configured for 4-wire measu- ring transducers. In this case the analog input module must not supply cur- rent to the analog output of the 3RB22/3RB23 relay. 2) Sensor circuit. 3) In conjunction with corresponding function expansion module. 36 Siemens · 2009 Type – Overload relay of evaluation module Size Width 3RB22 83, 3RB23 83 S00 ...
S10/S12 45 mm Control and sensor circuit as well as the analog output R (da et ge rd ein os fu pla ot li luo tn v no 3lt )a 1)g e Ui V e io 300 Rated impulse withstand voltage Uimp1) kV 4 Rated control supply voltage Us1) • AC 50/60 Hz V • DC V 24 ... 240 24 ... 240 Operating range1) • AC 50/60 Hz • DC 0.85 × Us min ≤ Us ≤ 1.1 × Us max 0.85 × Us min ≤ Us ≤ 1.1 × Us max Rated power1) • AC 50/60 Hz W • DC W 0.5 0.5 Mains buffering time1) ms 200 Thermistor motor protection (PTC thermistor detector)2) • Summation cold resistance kΩ • Response value kΩ • Return value kΩ ≤ 1.5 3.4 ... 3.8 1.5 ...
1.65 Ground-fault detection • Tripping value I Δ3) - For 0.3 × I e The information refers to sinusoidal residual currents at 50/60 Hz > 0.3 × I e > 0.15 × I motor 500 ... 1000 Analog output3)4) • Output signal mA • Measuring range • Load, max. Ω 4 ...
20 0 to 1.25 × I e 4 mA corresponds to 0 × I e 16.8 mA corresponds to 1.0 × I e 20 mA corresponds to 1.25 × I e 100 Connection for the control and sensor circuit as well as the analog output Connection type • Terminal screw • Tightening torque Nm • Conductor cross-section (min./max.), 1 or 2 conductors - Solid mm2 - Finely stranded without end sleeve mm2 - Finely stranded with end sleeve mm2 - Stranded mm2 - AWG cables, solid or stranded AWG Screw terminals Pozidriv size 2 0.8 ... 1.2 1 × (0.5 ... 4), 2 × (0.5 ... 2.5) -- 1 × (0.5 ... 2.5), 2 × (0.5 ... 1.5) -- 2 × (20 ...
14) Connection type • Conductor cross-section (min./max.), 1 or 2 conductors - Solid mm2 - Finely stranded without end sleeve mm2 - Finely stranded with end sleeve mm2 - Stranded mm2 - AWG cables, solid or stranded AWG Spring-type terminals 2 × (0.25 ... 1.5) -- 2 × (0.25 ... 1.5) 2 × (0.25 ... 1.5) 2 × (24 ... 16)