3RN20121BW30

Data sheet 3RN2012-1BW30 Thermistor motor protection relay Standard evaluation unit 22.5 mm enclosure screw terminal 2 change-over contacts US = 24 V-240 V AC/DC Manual/Auto/Remote reset with ATEX approval 2 LEDs (READY/TRIPPED) galvanic isolation Test/reset button Wire break monitoring Short circuit monitoring non-volatile product brand name SIRIUS product category SIRIUS 3RN2 thermistor motor protection product designation Thermistor motor protection relay design of the product Standard evaluation unit with ATEX approval, open-circuit and shortcircuit detection in the sensor circuit, non-volatile product type designation 3RN2 General technical data product function thermistor motor protection display version LED Yes insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value 300 V degree of pollution 3 surge voltage resistance rated value 4 kV protection class IP IP20 shock resistance according to IEC 60068-2-27 11g / 15 ms vibration resistance according to IEC 60068-2-6 10 ... 55 Hz: 0.35 mm mechanical service life (switching cycles) typical 10 000 000 electrical endurance (switching cycles) at AC-15 at 230 V typical 100 000 thermal current of the switching element with contacts maximum 5A reference code according to IEC 81346-2 K Substance Prohibitance (Date) 05/28/2009 Product Function product function ● error memory Yes ● dynamic open-circuit detection Yes ● external reset Yes ● auto-RESET Yes ● manual RESET Yes Control circuit/ Control type of voltage of the control supply voltage AC/DC control supply voltage at AC ● at 50 Hz rated value 24 ... 240 V ● at 60 Hz rated value 24 ... 240 V control supply voltage at DC ● rated value 24 ... 240 V operating range factor control supply voltage rated value at DC ● initial value 3RN20121BW30 Page 1/4 0.85 7/8/2022 Subject to change without notice © Copyright Siemens ● full-scale value 1.1 operating range factor control supply voltage rated value at AC at 50 Hz ● initial value 0.85 ● full-scale value 1.1 operating range factor control supply voltage rated value at AC at 60 Hz ● initial value 0.85 ● full-scale value 1.1 inrush current peak ● at 24 V 0.7 A ● at 240 V 12 A duration of inrush current peak ● at 24 V 0.25 ms ● at 240 V 0.2 ms Measuring circuit buffering time in the event of power failure minimum 40 ms Precision relative metering precision 2% Auxiliary circuit material of switching contacts AgSnO2 number of NC contacts for auxiliary contacts 0 number of NO contacts for auxiliary contacts 0 number of CO contacts for auxiliary contacts 2 operational current of auxiliary contacts at DC-13 ● at 24 V 1A ● at 125 V 0.2 A ● at 250 V 0.1 A Main circuit operating frequency rated value 50 ... 60 Hz ampacity of the output relay at AC-15 at 250 V at 50/60 Hz 3A ampacity of the output relay at DC-13 ● at 24 V 1A ● at 125 V 0.2 A continuous current of the DIAZED fuse link of the output relay 6A Electromagnetic compatibility conducted interference ● due to burst according to IEC 61000-4-4 2 kV (power ports) / 1 kV (signal ports) ● due to conductor-earth surge according to IEC 61000-4-5 2 kV (line to ground) ● due to conductor-conductor surge according to IEC 61000-4-5 1 kV (line to line) electrostatic discharge according to IEC 61000-4-2 6 kV contact discharge / 8 kV air discharge Galvanic isolation design of the electrical isolation galvanic isolation galvanic isolation ● between input and output Yes ● between the outputs Yes ● between the voltage supply and other circuits Yes Safety related data Safety Integrity Level (SIL) according to IEC 61508 1 performance level (PL) according to EN ISO 13849-1 c category according to EN ISO 13849-1 1 Safe failure fraction (SFF) 74 % average diagnostic coverage level (DCavg) 18 % failure rate [FIT] ● at rate of recognizable hazardous failures (λdd) 0.000000068 1/h ● at rate of non-recognizable hazardous failures (λdu) 0.00000031 1/h PFHD with high demand rate according to EN 62061 3RN20121BW30 Page 2/4 0.00000038 1/h 7/8/2022 Subject to change without notice © Copyright Siemens PFDavg with low demand rate according to IEC 61508 0.0041 MTBF 97 y MTTFd 303 y hardware fault tolerance according to IEC 61508 0 Connections/ Terminals product component removable terminal for auxiliary and control circuit Yes type of electrical connection screw-type terminals ● for auxiliary and control circuit screw-type terminals type of connectable conductor cross-sections ● solid 1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²) ● finely stranded with core end processing 1x (0.5 ... 4 mm²), 2x (0.5 ... 1.5 mm²) ● at AWG cables solid 1x (20 ... 12), 2x (20 ... 14) connectable conductor cross-section ● solid 0.5 ... 4 mm² ● finely stranded with core end processing 0.5 ... 4 mm² AWG number as coded connectable conductor cross section ● solid 20 ... 12 ● stranded 20 ... 12 tightening torque with screw-type terminals 0.6 ... 0.8 N·m Installation/ mounting/ dimensions mounting position any fastening method screw and snap-on mounting onto 35 mm standard mounting rail height 100 mm width 22.5 mm depth 90 mm required spacing ● with side-by-side mounting — forwards 0 mm — backwards 0 mm — upwards 0 mm — downwards 0 mm — at the side 0 mm ● for grounded parts — forwards 0 mm — backwards 0 mm — upwards 0 mm — at the side 0 mm — downwards 0 mm ● for live parts — forwards 0 mm — backwards 0 mm — upwards 0 mm — downwards 0 mm — at the side 0 mm Ambient conditions installation altitude at height above sea level maximum 2 000 m ambient temperature ● during operation -25 ... +60 °C ● during storage -40 ... +85 °C ● during transport -40 ... +85 °C relative humidity during operation 70 % explosion protection category for dust [Ex t] [Ex p] explosion protection category for gas [Ex e] [Ex d] [Ex px] Certificates/ approvals General Product Approval 3RN20121BW30 Page 3/4 EMC 7/8/2022 Subject to change without notice © Copyright Siemens Confirmation For use in hazardous locations Declaration of Conformity Test Certificates Marine / Shipping Type Test Certificates/Test Report other Confirmation Further information Information- and Downloadcenter (Catalogs, Brochures,…) https://www.siemens.com/ic10 Industry Mall (Online ordering system) https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RN2012-1BW30 Cax online generator http://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RN2012-1BW30 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3RN2012-1BW30 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...) http://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RN2012-1BW30&lang=en Characteristic: Derating https://support.industry.siemens.com/cs/ww/en/ps/3RN2012-1BW30/manual last modified: 3RN20121BW30 Page 4/4 5/1/2021 7/8/2022 Subject to change without notice © Copyright Siemens