Overload Relays 3RB2 Solid-State Overload Relays Accessories Overview Overload relays for standard applications The following accessories are available for the 3RB20/3RB21 so- lid-state overload relays:
One terminal bracket each for the overload relays size S00 and S0 (sizes S2 to S12 can be installed as stand-alone instal- lation without a terminal bracket) One mechanical remote RESET module for all sizes One cable release for resetting devices which are difficult to access (for all sizes) One sealable cover for all sizes Box terminal blocks for sizes S6 and S10/S12 Terminal covers for sizes S2 to S10/S12 Overload relays for high-feature applications The following accessories are available for the 3RB22/3RB23 so- lid-state overload relays:
A sealable cover for the evaluation module Box terminal blocks for the current measuring modules size S6 and S10/S12 Terminal covers for the current measuring modules size S6 and S10/S12 Technical specifications Terminal brackets for stand-alone installation 43 Siemens · 2009 Type 3RB29 13-0AA1 3RB29 23-0AA1 For overload relays 3RB20 16, 3RB21 13 3RB20 26, 3RB21 23 Size S00 S0 General data Type of mounting For screw and snap-on mounting onto TH 35 standard mounting rail Connection for main 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 2 ... 2.5 1 × (0.5 ... 2.5), max. 1 × (... 4) 1 × (1 ... 6), max. 1 × (... 10) -- -- 1 × (0.5 ... 2.5) 1 × (1 ... 6) 1 × (0.5 ... 2.5), max. 1 × (... 4) 1 × (1 ... 6), max. 1 × (... 10) 1 × (18 ... 14) 1 × (14 ... 10)