Overload Relays 3RB2 Solid-State Overload Relays 3RB22, 3RB23 for high-feature applications 1) The assignment of auxiliary contacts may be influenced by function expansion modules. 35 Siemens · 2009 Type – Overload relay of evaluation module Size Width 3RB22 83, 3RB23 83 S00 ...
S10/S12 45 mm Auxiliary circuit Number of NO contacts Number of NC contacts 2 2 Auxiliary contacts – assignment 1 NO for the signal "tripped due to overload and/or thermistor", 1 NC for switching off the contactor 1 NO for the signal "tripped due to ground fault", 1 NC for switching off the contactor or1) 1 NO for the signal "tripped due to overload and/or thermistor and/or ground fault", 1 NC for switching off the contactor 1 NO for overload warning, 1 NC for switching off the contactor Rated insulation voltage Ui V (degree of pollution 3) 300 Rated impulse withstand voltage Uimp kV 4 Auxiliary contacts – contact rating • NC contact with alternating current AC-14/AC-15 Rated operational current I e at Ue:
- 24 V A - 120 V A - 125 V A - 250 V A • NO contact with alternating current AC-14/AC-15: Rated operational current I e at Ue: - 24 V A - 120 V A - 125 V A - 250 V A • NC, NO contact with direct current DC-13: Rated operational current I e at Ue: - 24 V A - 60 V A - 110 V A - 125 V A - 250 V A • Conventional thermal current I th A • Contact reliability (suitability for PLC control; 17 V, 5 mA) 6 6 6 3 6 6 6 3 2 0.55 0.3 0.3 0.2 5 Yes Short-circuit protection • With fuse, gL/gG operational class A • With miniature circuit breaker (C characteristic) A 6 1.6 Protective separation between main and auxiliary V conducting path Acc.
to IEC 60947-1 300 CSA, UL, UR rated data Auxiliary circuit – switching capacity B300, R300 Connection of the auxiliary circuit 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)